Merge branch 'master' of gitlab.alipay-inc.com:datavis/L7_beta

This commit is contained in:
thinkinggis 2019-04-10 16:25:10 +08:00
commit 1e45d9dbe5
75 changed files with 1655 additions and 517 deletions

106
demos/01_animatePoint.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<meta name="geometry" content="diagram">
<link rel="stylesheet" href="./assets/common.css">
<link rel="stylesheet" href="./assets/info.css">
<title>point_circle</title>
<style>
#map { position:absolute; top:0; bottom:0; width:100%; }
.amap-maps {
cursor: auto !important
}
</style>
</head>
<body>
<div id="map"></div>
<script src="https://webapi.amap.com/maps?v=1.4.8&key=15cd8a57710d40c9b7c0e3cc120f1200&plugin=Map3D"></script>
<script src="./assets/jquery-3.2.1.min.js"></script>
<script src="./assets/dat.gui.min.js"></script>
<script src="../build/L7.js"></script>
<script>
var radius = 0.2;
function pointOnCircle(angle) {
return {
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"properties": {},
"geometry": {
"type": "Point",
"coordinates": [
120.19382669582967 + Math.cos(angle) * radius,
30.258134 + Math.sin(angle) * radius
]
}
}
]
}
}
console.log(pointOnCircle(10))
const scene = new L7.Scene({
id: 'map',
mapStyle: 'light', // 样式URL
center: [ 120.19382669582967, 30.258134 ],
pitch: 0,
zoom: 2,
maxZoom:20,
hash:true,
minZoom:0,
});
window.scene = scene;
scene.on('loaded', () => {
const circleLayer = scene.PointLayer({
zIndex: 0,
})
.source(pointOnCircle(0))
.shape('circle')
.size(10) // default 1
.active(true)
.color('#2894E0')
.style({
stroke: 'rgb(255,255,255)',
strokeWidth: 1,
opacity: 0.8
})
.render();
function animateMarker(timestamp) {
circleLayer.setData(pointOnCircle(timestamp / 1000));
requestAnimationFrame(animateMarker);
}
animateMarker(0);
/**
const layerText = scene.PointLayer({
zIndex: 3
})
.source(circleLayer.layerSource)
.shape('point_count', 'text')
.active(true)
.size('point_count', [ 0, 16]) // default 1
.color('#f00')
.style({
stroke: '#999',
strokeWidth: 0,
opacity: 1.0
})
.render();
console.log(layerText);
});
**/
});
</script>
</body>
</html>

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@ -24,7 +24,7 @@
<script src="../build/L7.js"></script>
<script>
const colorObj ={
blue: ["#E8FCFF", "#CFF6FF", "#A1E9ff", "#65CEF7", "#3CB1F0", "#2894E0", "#1772c2", "#105CB3", "#0D408C", "#002466"].reverse(),
blue: ["#E8FCFF", "#CFF6FF", "#A1E9ff", "#65CEF7", "#3CB1F0", "#2894E0", "#1772c2", "#105CB3", "#0D408C", "#002466"],
red: ["#FFF4F2", "#FFDFDB", "#FAADAA", "#F77472", "#F04850", "#D63147", "#BD223E", "#A81642", "#820C37", "#5C0023"].reverse(),
orange:["#FFF7EB", "#FFECD4", "#FAD09D", "#F7B16A", "#F08D41", "#DB6C2C", "#C2491D", "#AD2B11", "#871D0C", "#610800"].reverse(),
green:["#FAFFF0", "#EBF7D2", "#C8E695", "#A5D660", "#7DC238", "#59A616", "#3F8C0B", "#237804", "#125200", "#082B00"].reverse(),
@ -35,43 +35,53 @@ const colorObj ={
const scene = new L7.Scene({
id: 'map',
mapStyle: 'light', // 样式URL
mapStyle: 'dark', // 样式URL
center: [ 120.19382669582967, 30.258134 ],
pitch: 0,
zoom: 12,
maxZoom:14,
minZoom:11,
maxZoom:20,
minZoom:0,
});
window.scene = scene;
scene.on('loaded', () => {
$.get('https://gw.alipayobjects.com/os/rmsportal/epnZEheZeDgsiSjSPcCv.json', data => {
const circleLayer = scene.PointLayer({
zIndex: 2,
zIndex: 0,
})
.source(data)
.shape('circle')
.size('value', [ 2, 30]) // default 1
.scale('value', {
type:'log',
.source(data,{
isCluster:true
})
.shape('hexagon')
.size('point_count', [ 5, 40]) // default 1
//.size('value', [ 10, 300]) // default 1
.active(true)
.filter('value', field_8 => {
return field_8 * 1 > 500;
})
.color('type', colorObj.blue)
.color('point_count',colorObj.blue)
.style({
stroke: 'rgb(255,255,255)',
strokeWidth: 1,
opacity: 1.
opacity: 1
})
.render();
console.log(circleLayer);
var a = circleLayer.getLegendCfg('type','color');
console.log(a);
circleLayer.on('click',(e)=>{
console.log(e);
})
window.circleLayer = circleLayer;
const layerText = scene.PointLayer({
zIndex: 3
})
.source(circleLayer.layerSource)
.shape('point_count', 'text')
.active(true)
.filter('point_count',(p)=>{
return p > 50
})
.size('point_count', [ 5, 20]) // default 1
.color('#fff')
.style({
stroke: '#999',
strokeWidth: 0,
opacity: 1.0
})
.render();
console.log(layerText);
});
});

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<meta name="geometry" content="diagram">
<link rel="stylesheet" href="./assets/common.css">
<link rel="stylesheet" href="./assets/info.css">
<title>animateLine</title>
<style>
#map { position:absolute; top:0; bottom:0; width:100%; }
.amap-maps {
cursor: auto !important
}
</style>
</head>
<body>
<div id="map"></div>
<script src="https://webapi.amap.com/maps?v=1.4.8&key=15cd8a57710d40c9b7c0e3cc120f1200&plugin=Map3D"></script>
<script src="./assets/jquery-3.2.1.min.js"></script>
<script src="./assets/dat.gui.min.js"></script>
<script src="../build/L7.js"></script>
<script>
var geojson = {
"type": "FeatureCollection",
"features": [{
"type": "Feature",
"geometry": {
"type": "LineString",
"coordinates": [
[0, 0],
[0.001, 0.0001]
]
}
} ]
};
var speedFactor = 30; // number of frames per longitude degree
var animation; // to store and cancel the animation
var startTime = 0;
var progress = 0; // progress = timestamp - startTime
var resetTime = false; // indicator of whether time reset is needed for the animation
var pauseButton = document.getElementById('pause');
const scene = new L7.Scene({
id: 'map',
mapStyle: 'light', // 样式URL
center: [ 120.19382669582967, 30.258134 ],
pitch: 0,
zoom: 2,
maxZoom:20,
minZoom:0,
});
scene.on('loaded', () => {
const linelayer = scene.LineLayer({
zIndex: 2
})
.source(geojson)
.size([2,1])
.shape('line')
.color( "#2894E0")
.render();
startTime = performance.now();
animateLine(0);
function animateLine(timestamp) {
if (resetTime) {
// resume previous progress
startTime = performance.now() - progress;
resetTime = false;
} else {
progress = timestamp - startTime;
}
// restart if it finishes a loop
if (progress > speedFactor * 360) {
startTime = timestamp;
geojson.features[0].geometry.coordinates = [
[0, 0],
[0.001, 0.0001]
];
} else {
var x = progress / speedFactor;
// draw a sine wave with some math.
var y = Math.sin(x * Math.PI / 90) * 40;
// append new coordinates to the lineString
geojson.features[0].geometry.coordinates.push([x, y]);
// then update the map
linelayer.setData(geojson);
}
// Request the next frame of the animation.
animation = requestAnimationFrame(animateLine);
}
});
</script>
</body>
</html>

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@ -0,0 +1,227 @@
import TinySDF from '@mapbox/tiny-sdf';
import { buildMapping } from '../../util/font-util';
import * as THREE from '../../core/three';
import LRUCache from '../../util/lru-cache';
export const DEFAULT_CHAR_SET = getDefaultCharacterSet();
export const DEFAULT_FONT_FAMILY = 'sans-serif';
export const DEFAULT_FONT_WEIGHT = 'normal';
export const DEFAULT_FONT_SIZE = 24;
export const DEFAULT_BUFFER = 3;
export const DEFAULT_CUTOFF = 0.25;
export const DEFAULT_RADIUS = 8;
const MAX_CANVAS_WIDTH = 1024;
const BASELINE_SCALE = 0.9;
const HEIGHT_SCALE = 1.2;
const CACHE_LIMIT = 3;
const cache = new LRUCache(CACHE_LIMIT);
const VALID_PROPS = [
'fontFamily',
'fontWeight',
'characterSet',
'fontSize',
'sdf',
'buffer',
'cutoff',
'radius'
];
function getDefaultCharacterSet() {
const charSet = [];
for (let i = 32; i < 128; i++) {
charSet.push(String.fromCharCode(i));
}
return charSet;
}
function setTextStyle(ctx, fontFamily, fontSize, fontWeight) {
ctx.font = `${fontWeight} ${fontSize}px ${fontFamily}`;
ctx.fillStyle = '#000';
ctx.textBaseline = 'baseline';
ctx.textAlign = 'left';
}
function getNewChars(key, characterSet) {
const cachedFontAtlas = cache.get(key);
if (!cachedFontAtlas) {
return characterSet;
}
const newChars = [];
const cachedMapping = cachedFontAtlas.mapping;
let cachedCharSet = Object.keys(cachedMapping);
cachedCharSet = new Set(cachedCharSet);
let charSet = characterSet;
if (charSet instanceof Array) {
charSet = new Set(charSet);
}
charSet.forEach(char => {
if (!cachedCharSet.has(char)) {
newChars.push(char);
}
});
return newChars;
}
function populateAlphaChannel(alphaChannel, imageData) {
// populate distance value from tinySDF to image alpha channel
for (let i = 0; i < alphaChannel.length; i++) {
imageData.data[4 * i + 3] = alphaChannel[i];
}
}
export default class FontAtlasManager {
constructor() {
// font settings
this.props = {
fontFamily: DEFAULT_FONT_FAMILY,
fontWeight: DEFAULT_FONT_WEIGHT,
characterSet: DEFAULT_CHAR_SET,
fontSize: DEFAULT_FONT_SIZE,
buffer: DEFAULT_BUFFER,
// sdf only props
// https://github.com/mapbox/tiny-sdf
sdf: true,
cutoff: DEFAULT_CUTOFF,
radius: DEFAULT_RADIUS
};
// key is used for caching generated fontAtlas
this._key = null;
this._texture = new THREE.Texture();
}
get texture() {
return this._texture;
}
get mapping() {
const data = cache.get(this._key);
return data && data.mapping;
}
get scale() {
return HEIGHT_SCALE;
}
get fontAtlas() {
return this._fontAtlas;
}
setProps(props = {}) {
VALID_PROPS.forEach(prop => {
if (prop in props) {
this.props[prop] = props[prop];
}
});
// update cache key
const oldKey = this._key;
this._key = this._getKey();
const charSet = getNewChars(this._key, this.props.characterSet);
const cachedFontAtlas = cache.get(this._key);
// if a fontAtlas associated with the new settings is cached and
// there are no new chars
if (cachedFontAtlas && charSet.length === 0) {
// update texture with cached fontAtlas
if (this._key !== oldKey) {
this._updateTexture(cachedFontAtlas);
}
return;
}
// update fontAtlas with new settings
const fontAtlas = this._generateFontAtlas(this._key, charSet, cachedFontAtlas);
this._fontAtlas = fontAtlas;
this._updateTexture(fontAtlas);
// update cache
cache.set(this._key, fontAtlas);
}
_updateTexture({ data: canvas }) {
this._texture = new THREE.CanvasTexture(canvas);
this._texture.wrapS = THREE.ClampToEdgeWrapping;
this._texture.wrapT = THREE.ClampToEdgeWrapping;
this._texture.minFilter = THREE.LinearFilter;
this._texture.flipY = false;
this._texture.needUpdate = true;
}
_generateFontAtlas(key, characterSet, cachedFontAtlas) {
const { fontFamily, fontWeight, fontSize, buffer, sdf, radius, cutoff } = this.props;
let canvas = cachedFontAtlas && cachedFontAtlas.data;
if (!canvas) {
canvas = document.createElement('canvas');
canvas.width = MAX_CANVAS_WIDTH;
}
const ctx = canvas.getContext('2d');
setTextStyle(ctx, fontFamily, fontSize, fontWeight);
// 1. build mapping
const { mapping, canvasHeight, xOffset, yOffset } = buildMapping(
Object.assign(
{
getFontWidth: char => ctx.measureText(char).width,
fontHeight: fontSize * HEIGHT_SCALE,
buffer,
characterSet,
maxCanvasWidth: MAX_CANVAS_WIDTH
},
cachedFontAtlas && {
mapping: cachedFontAtlas.mapping,
xOffset: cachedFontAtlas.xOffset,
yOffset: cachedFontAtlas.yOffset
}
)
);
// 2. update canvas
// copy old canvas data to new canvas only when height changed
if (canvas.height !== canvasHeight) {
const imageData = ctx.getImageData(0, 0, canvas.width, canvas.height);
canvas.height = canvasHeight;
ctx.putImageData(imageData, 0, 0);
}
setTextStyle(ctx, fontFamily, fontSize, fontWeight);
// 3. layout characters
if (sdf) {
const tinySDF = new TinySDF(fontSize, buffer, radius, cutoff, fontFamily, fontWeight);
// used to store distance values from tinySDF
// tinySDF.size equals `fontSize + buffer * 2`
const imageData = ctx.getImageData(0, 0, tinySDF.size, tinySDF.size);
for (const char of characterSet) {
populateAlphaChannel(tinySDF.draw(char), imageData);
ctx.putImageData(imageData, mapping[char].x - buffer, mapping[char].y - buffer);
}
} else {
for (const char of characterSet) {
ctx.fillText(char, mapping[char].x, mapping[char].y + fontSize * BASELINE_SCALE);
}
}
return {
xOffset,
yOffset,
mapping,
data: canvas,
width: canvas.width,
height: canvas.height
};
}
_getKey() {
const { fontFamily, fontWeight, fontSize, buffer, sdf, radius, cutoff } = this.props;
if (sdf) {
return `${fontFamily} ${fontWeight} ${fontSize} ${buffer} ${radius} ${cutoff}`;
}
return `${fontFamily} ${fontWeight} ${fontSize} ${buffer}`;
}
}

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@ -0,0 +1,52 @@
import { buildIconMaping } from '../../util/font-util';
import * as THREE from '../../../../core/three';
const BUFFER = 3;
const MAX_CANVAS_WIDTH = 1024;
export default class IconManager {
constructor() {
this._getIcon = null;
this._mapping = {};
this._autoPacking = false;
this.iconData = {};
this._canvas = document.createElement('canvas');
this._texture = new THREE.Texture(this._canvas);
this.ctx = this._canvas.getContext('2d');
}
getTexture() {
return this._texture;
}
_updateIconAtlas() {
this._canvas.width = MAX_CANVAS_WIDTH;
this._canvas.height = this._canvasHeigth;
for (const key in this.mapping) {
const icon = this.mapping[key];
const { x, y, image } = icon;
this.ctx.drawImage(image, x, y, this.imageWidth, this.imageWidth);
}
this.texture.magFilter = THREE.LinearFilter;
this.texture.minFilter = THREE.LinearFilter;
this.texture.needsUpdate = true;
}
addImage(id, opt) {
this._loadImage(opt).then(image => {
this.iconData.push({ id, image });
const { mapping, canvasHeight } = buildIconMaping(this.iconData, BUFFER, MAX_CANVAS_WIDTH);
this._mapping = mapping;
this._canvasHeigth = canvasHeight;
});
}
_loadImage(url) {
return new Promise((resolve, reject) => {
const image = new Image();
image.onload = () => {
resolve(image);
};
image.onerror = function() {
reject(new Error('Could not load image at ' + url));
};
image.src = url;
});
}
}

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@ -8,8 +8,9 @@ import ColorUtil from '../attr/color-util';
import Controller from './controller/index';
import source from './source';
import pickingFragmentShader from '../core/engine/picking/picking_frag.glsl';
// import PickingMaterial from '../core/engine/picking/pickingMaterial';
import { getInteraction } from '../interaction/index';
import Attr from '../attr/index';
import diff from '../util/diff';
import Util from '../util';
import Global from '../global';
let id = 1;
@ -36,6 +37,7 @@ export default class Layer extends Base {
attrOptions: {
},
scaleOptions: {},
preScaleOptions: null,
scales: {},
attrs: {},
// 样式配置项
@ -53,6 +55,7 @@ export default class Layer extends Base {
activedOptions: {
fill: [ 1.0, 0, 0, 1.0 ]
},
interactions: {},
animateOptions: {
enable: false
}
@ -66,6 +69,7 @@ export default class Layer extends Base {
this._pickObject3D = new THREE.Object3D();
this._object3D.visible = this.get('visible');
this._object3D.renderOrder = this.get('zIndex') || 0;
this._mapEventHandlers = [];
const layerId = this._getUniqueId();
this.layerId = layerId;
this._activeIds = null;
@ -82,18 +86,15 @@ export default class Layer extends Base {
* @param {*} type mesh类型是区别是填充还是边线
*/
add(object, type = 'fill') {
// composer合图层绘制
// composer合图层绘制
if (object.type === 'composer') {
this._object3D = object;
this.scene._engine.composerLayers.push(object);
setTimeout(() => this.scene._engine.update(), 500);
return;
}
type === 'fill' ? this.layerMesh = object : this.layerLineMesh = object;
this._visibleWithZoom();
this._zoomchangeHander = this._visibleWithZoom.bind(this);
this.scene.on('zoomchange', this._zoomchangeHander);
object.onBeforeRender = () => { // 每次渲染前改变状态
const zoom = this.scene.getZoom();
object.material.setUniformsValue('u_time', this.scene._engine.clock.getElapsedTime());
@ -104,15 +105,10 @@ export default class Layer extends Base {
object.onAfterRender = () => { // 每次渲染后改变状态
this.afterRender();
};
// 更新
if (this._needUpdateFilter) { // 动态更新数据过滤
this._updateFilter(object);
}
this._object3D.add(object);
if (type === 'fill') {
this._addPickMesh(object);// 不对边界线进行拾取
}
this.scene._engine.update();
setTimeout(() => this.scene._engine.update(), 500);
}
remove(object) {
@ -132,8 +128,13 @@ export default class Layer extends Base {
this._object3D.visible = this.get('visible');
}
source(data, cfg = {}) {
if (data instanceof source) {
this.layerSource = data;
return this;
}
cfg.data = data;
cfg.mapType = this.scene.mapType;
cfg.zoom = this.scene.getZoom();
this.layerSource = new source(cfg);
// this.scene.workerPool.runTask({
// command: 'geojson',
@ -144,7 +145,6 @@ export default class Layer extends Base {
return this;
}
color(field, values) {
this._needUpdateColor = true;// 标识颜色是否需要更新
this._createAttrOption('color', field, values, Global.colors);
return this;
}
@ -224,7 +224,6 @@ export default class Layer extends Base {
}
filter(field, values) {
this._needUpdateFilter = true;
this._createAttrOption('filter', field, values, true);
return this;
}
@ -263,6 +262,10 @@ export default class Layer extends Base {
this._visible(true);
return this;
}
setData(data, cfg) {
this.layerSource.setData(data, cfg);
this.repaint();
}
_createScale(field) {
// TODO scale更新
const scales = this.get('scales');
@ -316,25 +319,54 @@ export default class Layer extends Base {
}
return scale;
}
render() {
this.init();
this.scene._engine.update();
return this;
}
// 重绘 度量, 映射,顶点构建
repaint() {
this.set('scales', {});
this._initControllers();
this._initAttrs();
this._mapping();
this.redraw();
}
// 初始化图层
init() {
this._initControllers();
this._initAttrs();
this._scaleByZoom();
this._mapping();
const activeHander = this._addActiveFeature.bind(this);
const resetHander = this._resetStyle.bind(this);
this._updateDraw();
}
_initInteraction() {
if (this.get('allowActive')) {
this.on('mousemove', activeHander);
this.on('mouseleave', resetHander);
} else {
this.off('mousemove', activeHander);
this.off('mouseleave', resetHander);
this.interaction('active');
}
}
_initMapEvent() {
// zoomchange mapmove resize
const EVENT_TYPES = [ 'zoomchange', 'dragend' ];
Util.each(EVENT_TYPES, type => {
const handler = Util.wrapBehavior(this, `${type}`);
this.map.on(`${type}`, handler);
this._mapEventHandlers.push({ type, handler });
});
}
clearMapEvent() {
const eventHandlers = this._mapEventHandlers;
Util.each(eventHandlers, eh => {
this.map.off(eh.type, eh.handler);
});
}
zoomchange(ev) {
// 地图缩放等级变化
this._visibleWithZoom(ev);
}
dragend() {
}
resize() {
}
setActive(id, color) {
this._activeIds = id;
@ -353,6 +385,7 @@ export default class Layer extends Base {
_initAttrs() {
// 对比 options变化判断如何更新
const attrOptions = this.get('attrOptions');
for (const type in attrOptions) {
if (attrOptions.hasOwnProperty(type)) {
@ -360,6 +393,55 @@ export default class Layer extends Base {
}
}
}
_setPreOption() {
const nextAttrs = this.get('attrOptions');
const nextStyle = this.get('styleOptions');
this.set('preAttrOptions', Util.clone(nextAttrs));
this.set('preStyleOption', Util.clone(nextStyle));
}
_updateDraw() {
const preAttrs = this.get('preAttrOptions');
const nextAttrs = this.get('attrOptions');
const preStyle = this.get('preStyleOption');
const nextStyle = this.get('styleOptions');
if (preAttrs === undefined && preStyle === undefined) {
this._mapping();
this._setPreOption();
this._scaleByZoom();
this._initInteraction();
this._initMapEvent();
this.draw();
return;
}
if (!Util.isEqual(preAttrs.color, nextAttrs.color)) {
this._updateAttributes(this.layerMesh);
}
// 更新数据过滤 filter
if (!Util.isEqual(preAttrs.filter, nextAttrs.filter)) {
// 更新color
this._updateAttributes(this.layerMesh);
}
// 更新Size
if (!Util.isEqual(preAttrs.size, nextAttrs.size)) {
// 更新color
this._updateSize();
}
// 更新形状
if (!Util.isEqual(preAttrs.shape, nextAttrs.shape)) {
// 更新color
this._updateShape();
}
if (!Util.isEqual(preStyle, nextStyle)) {
// 判断新增,修改,删除
const newStyle = {};
Util.each(diff(preStyle, nextStyle), ({ type, key, value }) => {
(type !== 'remove') && (newStyle[key] = value);
// newStyle[key] = type === 'remove' ? null : value;
});
this._updateStyle(newStyle);
}
this._setPreOption();
}
_updateAttr(type) {
const self = this;
@ -400,7 +482,14 @@ export default class Layer extends Base {
}
this.emit('sizeUpdated', this.zoomSizeCache[zoom]);
}
_updateStyle(option) {
const newOption = { };
for (const key in option) {
newOption['u_' + key] = option[key];
}
this.layerMesh.material.updateUninform(newOption);
}
_mapping() {
const self = this;
const attrs = self.get('attrs');
@ -410,13 +499,12 @@ export default class Layer extends Base {
for (let i = 0; i < data.length; i++) {
const record = data[i];
const newRecord = {};
newRecord.id = data[i]._id;
for (const k in attrs) {
if (attrs.hasOwnProperty(k)) {
const attr = attrs[k];
attr.needUpdate = false;
const names = attr.names;
const values = self._getAttrValues(attr, record);
if (names.length > 1) { // position 之类的生成多个字段的属性
for (let j = 0; j < values.length; j++) {
@ -433,6 +521,12 @@ export default class Layer extends Base {
newRecord.coordinates = record.coordinates;
mappedData.push(newRecord);
}
// 通过透明度过滤数据
if (attrs.hasOwnProperty('filter')) {
mappedData.forEach(item => {
item.filter === false && (item.color[3] = 0);
});
}
this.layerData = mappedData;
}
@ -483,17 +577,6 @@ export default class Layer extends Base {
const values = attr.mapping(...params);
return values;
}
// temp
_getDataType(data) {
if (data.hasOwnProperty('type')) {
const type = data.type;
if (type === 'FeatureCollection') {
return 'geojson';
}
}
return 'basic';
}
_scaleByZoom() {
if (this._zoomScale) {
this.map.on('zoomend', () => {
@ -502,11 +585,7 @@ export default class Layer extends Base {
});
}
}
// on(type, callback) {
// this._addPickingEvents();
// super.on(type, callback);
// }
getPickingId() {
return this.scene._engine._picking.getNextId();
}
@ -519,19 +598,9 @@ export default class Layer extends Base {
_addPickMesh(mesh) {
this._pickingMesh = new THREE.Object3D();
this._pickingMesh.name = this.layerId;
// this._visibleWithZoom();
// this.scene.on('zoomchange', () => {
// this._visibleWithZoom();
// });
this.addToPicking(this._pickingMesh);
const pickmaterial = mesh.material.clone();
pickmaterial.fragmentShader = pickingFragmentShader;
// const pickmaterial = new PickingMaterial({
// u_zoom: this.scene.getZoom(),
// vs: mesh.material.
// });
const pickingMesh = new THREE[mesh.type](mesh.geometry, pickmaterial);
pickingMesh.name = this.layerId;
pickmaterial.setDefinesvalue(this.type, true);
@ -542,16 +611,13 @@ export default class Layer extends Base {
this._pickingMesh.add(pickingMesh);
}
_setPickingId() {
this._pickingId = this.getPickingId();
}
_initEvents() {
this.scene.on('pick-' + this.layerId, e => {
let { featureId, point2d, type } = e;
if (featureId < 0 && this._activeIds !== null) {
type = 'mouseleave';
// featureId = this._activeIds;
}
this._activeIds = featureId;
const feature = this.layerSource.getSelectFeature(featureId);
const lnglat = this.scene.containerToLngLat(point2d);
const style = this.layerData[featureId - 1];
@ -569,44 +635,11 @@ export default class Layer extends Base {
});
}
/**
* 更新active操作
* @param {*} featureStyleId 需要更新的要素Id
* @param {*} style 更新的要素样式
*/
updateStyle(featureStyleId, style) {
if (this._activeIds) {
this._resetStyle();
}
this._activeIds = featureStyleId;
const pickingId = this.layerMesh.geometry.attributes.pickingId.array;
const color = style.color;
const colorAttr = this.layerMesh.geometry.attributes.a_color;
const firstId = pickingId.indexOf(featureStyleId[0]);
for (let i = firstId; i < pickingId.length; i++) {
if (pickingId[i] === featureStyleId[0]) {
colorAttr.array[i * 4 + 0] = color[0];
colorAttr.array[i * 4 + 1] = color[1];
colorAttr.array[i * 4 + 2] = color[2];
colorAttr.array[i * 4 + 3] = color[3];
} else {
break;
}
}
colorAttr.needsUpdate = true;
return;
}
_updateColor() {
this._updateMaping();
}
/**
* 用于过滤数据
* @param {*} object 需要过滤的mesh
* @param {*} object 更新颜色和数据过滤
*/
_updateFilter(object) {
_updateAttributes(object) {
this._updateMaping();
const filterData = this.layerData;
this._activeIds = null; // 清空选中元素
@ -642,16 +675,64 @@ export default class Layer extends Base {
let offset = 0;
if (this.type === 'point') {
offset = 5;
this.shapeType = 'text' && (offset = 10);
} else if (this.type === 'polyline') {
offset = 2;
}
this._object3D.position.z = offset * Math.pow(2, 20 - zoom);
this._object3D.position && (this._object3D.position.z = offset * Math.pow(2, 20 - zoom));
if (zoom < minZoom || zoom > maxZoom) {
this._object3D.visible = false;
} else if (this.get('visible')) {
this._object3D.visible = true;
}
}
// 重新构建mesh
redraw() {
this._object3D.children.forEach(child => {
this._object3D.remove(child);
});
this.removeFromPicking(this._pickingMesh);
this.draw();
}
// 更新mesh
updateDraw() {
}
// interaction 方法
clearAllInteractions() {
const interactions = this.get('interactions');
Util.each(interactions, (interaction, key) => {
interaction.destory();
delete interactions[key];
});
return this;
}
clearInteraction(type) {
const interactions = this.get('interactions');
if (interactions[type]) {
interactions[type].destory();
delete interactions[type];
}
return this;
}
interaction(type, cfg = {}) {
cfg.layer = this;
const Ctor = getInteraction(type);
const interaction = new Ctor(cfg);
this._setInteraction(type, interaction);
return this;
}
_setInteraction(type, interaction) {
const interactions = this.get('interactions');
if (interactions[type]) {
interactions[type].destory();
}
interactions[type] = interaction;
}
/**
* 重置高亮要素
*/
@ -664,6 +745,8 @@ export default class Layer extends Base {
*/
destroy() {
this.removeAllListeners();
this.clearAllInteractions();
this.clearMapEvent();
if (this._object3D.type === 'composer') {
this.remove(this._object3D);
@ -696,7 +779,6 @@ export default class Layer extends Base {
this._object3D = null;
this.scene._engine._scene.remove(this._object3D);
this.scene._engine._picking.remove(this._pickingMesh);
this.scene.off('zoomchange', this._zoomchangeHander);
this.destroyed = true;
}

View File

@ -7,6 +7,7 @@ import FontAtlasManager from '../geom/buffer/point/text/font-manager';
// import { MapProvider } from '../map/AMap';
import { getMap } from '../map/index';
import Global from '../global';
import { getInteraction } from '../interaction/index';
import { compileBuiltinModules } from '../geom/shader';
export default class Scene extends Base {
getDefaultCfg() {
@ -46,6 +47,12 @@ export default class Scene extends Base {
Map.asyncCamera(this._engine);
this.initLayer();
this._registEvents();
const hash = this.get('hash');
if (hash) {
const Ctor = getInteraction('hash');
const interaction = new Ctor({ layer: this });
interaction._onHashChange();
}
this.emit('loaded');
});
@ -69,14 +76,6 @@ export default class Scene extends Base {
super.off(type, hander);
}
_initAttribution() {
const message = '<a href="http://antv.alipay.com/zh-cn/index.html title="Large-scale WebGL-powered Geospatial Data Visualization">AntV | L7 </a>';
const element = document.createElement('div');
element.innerHTML = message;
element.style.cssText += 'position: absolute; pointer-events:none;background: rgba(255, 255, 255, 0.7);font-size: 11px;z-index:100; padding:4px;bottom: 0;right:0px;';
this._container.appendChild(element);
}
addImage() {
this.image = new LoadImage();
}

View File

@ -1,6 +1,8 @@
import Base from './base';
import { getTransform, getParser } from '../source';
import { cluster, formatData } from '../source/transform/cluster';
import { extent, tranfrormCoord } from '../util/geo';
import { clone } from '@antv/util';
import { getMap } from '../map/index';
export default class Source extends Base {
getDefaultCfg() {
@ -21,18 +23,40 @@ export default class Source extends Base {
const mapType = this.get('mapType');
this.projectFlat = getMap(mapType).project;
// 数据解析
this._init();
}
_init() {
this._excuteParser();
const isCluster = this.get('isCluster') || false;
isCluster && this._executeCluster();
// 数据转换 统计,聚合,分类
this._executeTrans();
// 坐标转换
this._projectCoords();
}
setData(data, cfg = {}) {
Object.assign(this._attrs, cfg);
const transform = this.get('transforms');
this._transforms = transform || [];
this.set('data', data);
this._init();
}
// 数据更新
updateTransfrom(cfg) {
const { transforms } = cfg;
this._transforms = transforms;
this.data = clone(this.originData);
this._executeTrans();
this._projectCoords();
}
_excuteParser() {
const parser = this.get('parser');
const { type = 'geojson' } = parser;
const data = this.get('data');
this.data = getParser(type)(data, parser);
this.originData = getParser(type)(data, parser);
this.data = clone(this.originData);
this.data.extent = extent(this.data.dataArray);
}
/**
@ -51,6 +75,24 @@ export default class Source extends Base {
const data = getTransform(option.type)(this.data, option);
Object.assign(this.data, data);
}
_executeCluster() {
const clusterCfg = this.get('Cluster') || {};
const zoom = this.get('zoom');
clusterCfg.zoom = Math.floor(zoom);
this.set('cluster', clusterCfg);
const clusterData = cluster(this.data, clusterCfg);
this.data = clusterData.data;
this.pointIndex = clusterData.pointIndex;
}
updateCusterData(zoom, bbox) {
const clusterPoint = this.pointIndex.getClusters(bbox, zoom);
this.data.dataArray = formatData(clusterPoint);
const clusterCfg = this.get('Cluster') || {};
clusterCfg.zoom = Math.floor(zoom);
clusterCfg.bbox = bbox;
this.set('cluster', clusterCfg);
this._projectCoords();
}
_projectCoords() {
this.data.dataArray.forEach(data => {
// data.coordinates = this._coordProject(data.coordinates);

38
src/geom/base.js Normal file
View File

@ -0,0 +1,38 @@
export const GeomBase = {
color: 'updateDraw',
size: 'repaint',
filter: 'updateDraw',
layer: '',
pickable: true,
setLayer(layer) {
this.layer = layer;
this.style = layer.get('styleOption');
},
getShape(type) {
return type;
},
draw() {
const shape = this.getShape();
this.Mesh = shape.Mesh();
},
// 更新geometry buffer;
updateDraw() {
},
repaint() {
}
};
export const shapeBae = {
geometryBuffer() {
},
geometry() {},
material() {},
mesh() {
}
};

View File

@ -29,12 +29,11 @@ function drawGlyph(layerData, fontAtlasManager) {
const size = element.size;
const pos = element.coordinates;
let text = element.shape || '';
text = text.toString();
const pen = {
x: (-text.length * size) / 2,
y: 0
};
text = text.toString();
for (let i = 0; i < text.length; i++) {
const metric = mapping[text[i]];
const { x, y, width, height } = metric;

View File

@ -1,62 +0,0 @@
const geom = {
point: {
symbol: [ 'circle', 'hexagon', 'triangle', 'diamond' ],
native: {
buffer: '',
geometry: 'PointGeometry',
material: 'PointMaterial'
},
line: {
buffer: 'PointBuffer',
geometry: 'PolygonLine',
material: 'MeshlineMaterial'
},
fill: {
buffer: 'PointBuffer',
geometry: 'PolygonGeometry',
material: 'PolygonMaterial'
},
extrude: {
buffer: 'PointBuffer',
geometry: 'PolygonGeometry',
material: 'PolygonMaterial'
},
extrudeline: {
buffer: 'PointBuffer',
geometry: 'PolygonLine',
material: 'MeshlineMaterial'
},
pointGrid: {
buffer: 'pointGrid',
geometry: 'PolygonLine',
material: 'MeshlineMaterial'
}
},
line: {
shape: [ 'native' ]
},
polygon: {
line: {
buffer: 'polygonLineBuffer',
geometry: 'PolygonLine',
material: 'MeshlineMaterial'
},
fill: {
buffer: 'PolygonBuffer',
geometry: 'PolygonGeometry',
material: 'PolygonMaterial'
},
extrude: {
buffer: 'PolygonBuffer',
geometry: 'PolygonGeometry',
material: 'PolygonMaterial'
},
extrudeline: {
buffer: 'polygonLineBuffer',
geometry: 'PolygonLine',
material: 'MeshlineMaterial'
}
}
};
export default geom;

View File

@ -1,35 +1,58 @@
import * as THREE from '../../core/three';
import Material from './material';
import { getModule } from '../../util/shaderModule';
export class HeatmapColorizeMaterial extends Material {
getDefaultParameters() {
return {
uniforms: {
u_intensity: { value: 1.0 },
u_texture: { value: null },
u_rampColors: { value: 0 },
u_opacity: { value: 1 }
},
defines: {
export function HeatmapIntensityMaterial(opt) {
const { vs, fs } = getModule('heatmap_intensity');
const material = new Material({
uniforms: {
u_intensity: { value: opt.intensity },
u_radius: { value: opt.radius },
u_zoom: { value: opt.zoom }
},
vertexShader: vs,
fragmentShader: fs,
transparent: true,
depthTest: false,
blending: THREE.AdditiveBlending
});
return material;
}
};
}
constructor(_uniforms, _defines = {}, parameters) {
super(parameters);
const { uniforms, defines } = this.getDefaultParameters();
const { vs, fs } = getModule('heatmap_color');
this.uniforms = Object.assign(uniforms, this.setUniform(_uniforms));
this.type = 'HeatmapColorizeMaterial';
this.defines = Object.assign(defines, _defines);
this.vertexShader = vs;
this.fragmentShader = fs;
this.transparent = true;
}
}
export function HeatmapColorizeMaterial(opt) {
const { vs, fs } = getModule('heatmap_color');
const material = new Material({
uniforms: {
u_texture: { value: opt.texture },
u_colorRamp: { value: opt.colorRamp },
u_opacity: { value: opt.opacity }
},
vertexShader: vs,
fragmentShader: fs,
transparent: true
});
return material;
export class HeatmapIntensityMaterial extends Material {
getDefaultParameters() {
return {
uniforms: {
u_intensity: { value: 10.0 },
u_zoom: { value: 4 },
u_radius: { value: 10 }
},
defines: {
}
};
}
constructor(_uniforms, _defines = {}, parameters) {
super(parameters);
const { uniforms, defines } = this.getDefaultParameters();
const { vs, fs } = getModule('heatmap_intensity');
this.uniforms = Object.assign(uniforms, this.setUniform(_uniforms));
this.type = 'heatmap_intensity';
this.defines = Object.assign(defines, _defines);
this.vertexShader = vs;
this.blending = THREE.AdditiveBlending;
this.fragmentShader = fs;
this.depthTest = false;
this.transparent = true;
}
}

View File

@ -55,7 +55,8 @@ export function MeshLineMaterial(options) {
},
vertexShader: vs,
fragmentShader: fs,
transparent: true
transparent: true,
blending: THREE.AdditiveBlending
});
return material;
}

View File

@ -19,7 +19,7 @@ export default class Material extends THREE.ShaderMaterial {
}
return uniforms;
}
upDateUninform(option) {
updateUninform(option) {
for (const key in option) {
if (key.substr(0, 2) === 'u_') {
this.setUniformsValue(key, option[key]);

View File

@ -1,11 +1,11 @@
uniform sampler2D u_texture;
uniform sampler2D u_colorRamp;
uniform sampler2D u_rampColors;
uniform float u_opacity;
varying vec2 v_uv;
void main(){
float intensity = texture2D(u_texture,v_uv).r;
vec4 color = texture2D(u_colorRamp,vec2(0.5,1.0-intensity));
vec4 color = texture2D(u_rampColors,vec2(0.5,1.0-intensity));
gl_FragColor = color;
gl_FragColor.a = color.a * smoothstep(0.,0.05,intensity) * u_opacity;

View File

@ -16,7 +16,8 @@ void main() {
}
#ifdef ANIMATE
vTime = 1.0- (mod(u_time*50.,3600.)- position.z) / 100.;
// vTime = 1.0- (28800. + mod(u_time* 10.,28800.)- position.z / 1000.) / 100.;
#endif
gl_Position = matModelViewProjection * vec4(position.xy,0., 1.0);
gl_Position = matModelViewProjection * vec4(position.xy, 0., 1.0);
worldId = id_toPickColor(pickingId);
}

View File

@ -20,7 +20,7 @@ uniform float u_trailLength;
void main() {
mat4 matModelViewProjection = projectionMatrix * modelViewMatrix;
vec3 pointPos = position.xyz + vec3(normal * a_size * pow(2.0,20.0-u_zoom) / 2.0 * a_miter);
vec3 pointPos = vec3(position.xy,0.) + vec3(normal * a_size * pow(2.0,20.0-u_zoom) / 2.0 * a_miter);
v_color = a_color;
if(pickingId == u_activeId) {
v_color = u_activeColor;
@ -30,8 +30,9 @@ void main() {
float alpa =1.0 - fract( mod(1.0- a_distance,u_interval)* (1.0/u_interval) + u_time / u_duration);
alpa = (alpa + u_trailLength -1.0) / u_trailLength;
vTime = clamp(alpa,0.,1.);
// vTime = (28800. + mod(u_time* 1000.,28800.)- position.z) / 100.;
#endif
worldId = id_toPickColor(pickingId);
gl_Position = matModelViewProjection * vec4(pointPos, 1.0);
gl_Position = matModelViewProjection * vec4(pointPos.xy, 0., 1.0);
}

View File

@ -15,7 +15,7 @@ varying vec4 v_color;
void main() {
mat4 matModelViewProjection = projectionMatrix * modelViewMatrix;
float scale = pow(2.0,(20.0 - u_zoom));
vec3 newposition = position + (a_size + vec3(u_strokeWidth/2.,u_strokeWidth/2.,0)) * scale* a_shape;
vec3 newposition = position + (a_size + vec3(u_strokeWidth/2.,u_strokeWidth/2.,0)) * scale* a_shape + vec3(0., a_size.y * scale / 4., 0.);;
#ifdef ANIMATE
vTime = 1.0- (mod(u_time*50.,3600.)- position.z) / 100.;
#endif

View File

@ -21,7 +21,7 @@ void main() {
vec3 newposition = position;
// newposition.x -= 128.0;
#ifdef SHAPE
newposition =position + a_size * scale* a_shape;
newposition =position + a_size * scale* a_shape + vec3(0., a_size.y * scale / 4., 0.);
#endif
v_texCoord = faceUv;
if(normal == vec3(0.,0.,1.)){

View File

@ -7,9 +7,11 @@ uniform float u_buffer;
uniform float u_gamma;
uniform float u_opacity;
varying vec2 v_texcoord;
varying float v_size;
void main(){
float dist=texture2D(u_texture,vec2(v_texcoord.x,v_texcoord.y)).a;
float alpha;
if(u_strokeWidth==0.){
alpha=smoothstep(u_buffer-u_gamma,u_buffer+u_gamma,dist);
gl_FragColor=vec4(v_color.rgb,alpha*v_color.a);

View File

@ -7,12 +7,14 @@ uniform vec2 u_textTextureSize;// 纹理大小
uniform vec2 u_glSize;
varying vec2 v_texcoord;
varying vec4 v_color;
varying float v_size;
uniform float u_activeId;
uniform vec4 u_activeColor;
void main(){
mat4 matModelViewProjection=projectionMatrix*modelViewMatrix;
vec4 cur_position=matModelViewProjection*vec4(position.xy,0,1);
v_size = 12. / u_glSize.x;
gl_Position=cur_position/cur_position.w+vec4((a_txtOffsets+a_txtsize)/u_glSize*2.,0.,0.);
v_color=vec4(a_color.rgb,a_color.a*u_opacity);
if(pickingId==u_activeId){

View File

@ -1,60 +1,4 @@
import { Vector3 } from '../../core/three';
import getNormal from 'polyline-normals';
/**
* shape meshLine
* @param {array} geo 坐标点
* @param {object} props 属性数据
* @param {int} index 原始数据ndex
* @return {object} 顶点坐标索引坐标
*/
export function meshLine(geo, props, index) {
const dataLength = geo.length;
const width = props.size[0] * 50 || 100;
const dem = props.size[1] || 0;
const posArray = [];
const indexArray = [];
const points = [];
for (let i = 0; i < dataLength; i++) {
let previous = (i === 0) ? geo[0] : geo[i - 1];
let next = (i === dataLength - 1) ? geo[dataLength - 1] : geo[i + 1];
let current = geo[i];
previous = [ previous[0], previous[1], 0 ];
next = [ next[0], next[1], 0 ];
current = [ current[0], current[1], 0 ];
let dir = null;
if (i === 0 || i === dataLength - 1) {
dir = new Vector3(1, 1, 1);
} else {
const dir1 = new Vector3();
const dir2 = new Vector3();
dir = new Vector3();
dir1.subVectors(new Vector3(...current), new Vector3(...previous)).normalize();
dir2.subVectors(new Vector3(...next), new Vector3(...current)).normalize();
dir.addVectors(dir1, dir2).normalize();
}
let normal = [ -dir.y, dir.x, 0 ];
normal = [ normal[0] * width, normal[1] * width, 0 ];
const n1 = [ normal[0], normal[1], 0 ];
const n2 = [ -normal[0], -normal[1], 0 ];
const p1 = new Vector3();
const p2 = new Vector3();
p1.addVectors(new Vector3(...current), new Vector3(...n1));
p2.addVectors(new Vector3(...current), new Vector3(...n2));
points.push([ p1.x, p1.y, dem ], [ p2.x, p2.y, dem ]);
}// end of for
for (let i = 0; i < points.length - 2; i += 2) {
const ct = i;
const cb = i + 1;
const nt = i + 2;
const nb = i + 3;
posArray.push(points[ct], points[cb], points[nt]);
posArray.push(points[nt], points[cb], points[nb]);
indexArray.push(index, index, index);
indexArray.push(index, index, index);
}
return { positions: posArray, indexes: indexArray };
}
/**
* shape arc
@ -150,7 +94,7 @@ export function Line(path, props, positionsIndex) {
indexArray[c++] = i + 2;
indexArray[c++] = i + 3;
}
point[2] = size[1];
// point[2] = size[1];
positions.push(...point);
positions.push(...point);

View File

@ -33,7 +33,7 @@ export function polygonPath(pointCount) {
const step = Math.PI * 2 / pointCount;
const line = [];
for (let i = 0; i < pointCount; i++) {
line.push(step * i);
line.push(step * i - Math.PI / 12);
}
const path = line.map(t => {
const x = Math.sin(t + Math.PI / 4),

View File

@ -3,6 +3,7 @@
* @author dxq613
*/
// const Global = {};
const FONT_FAMILY = '"-apple-system", BlinkMacSystemFont, "Segoe UI", Roboto,"Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",SimSun, "sans-serif"';
const Global = {
version: '1.0.0',
scene: {
@ -11,24 +12,28 @@ const Global = {
center: [ 107.622, 39.266 ],
minZoom: 0,
maxZoom: 22,
pitch: 0
pitch: 0,
hash: false
},
trackable: true,
animate: true,
snapArray: [ 0, 1, 2, 4, 5, 10 ],
height: 0,
activeColor: '#2f54eb',
colors: [ 'rgb(103,0,31)', 'rgb(178,24,43)', 'rgb(214,96,77)', 'rgb(244,165,130)', 'rgb(253,219,199)', 'rgb(247,247,247)', 'rgb(209,229,240)', 'rgb(146,197,222)', 'rgb(67,147,195)', 'rgb(33,102,172)', 'rgb(5,48,97)' ],
// 指定固定 tick 数的逼近值
snapCountArray: [ 0, 1, 1.2, 1.5, 1.6, 2, 2.2, 2.4, 2.5, 3, 4, 5, 6, 7.5, 8, 10 ],
size: 10000,
shape: 'circle',
snapArray: [ 0, 1, 2, 4, 5, 10 ],
pointShape: {
'2d': [ 'circle', 'square', 'hexagon', 'triangle' ],
'3d': [ 'cylinder', 'triangleColumn', 'hexagonColumn', 'squareColumn' ]
},
sdfHomeUrl: 'https://sdf.amap.com',
scales: {
scales: { },
textStyle: {
fontSize: 12,
fill: '#ccc',
textBaseline: 'middle',
fontFamily: FONT_FAMILY,
textAlign: 'center'
}
};

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@ -2,10 +2,19 @@
// import Util from './util';
import Scene from './core/scene';
import Global from './global';
import Source from './core/source';
import { registerParser, registerTransform } from './source';
import { registerInteraction, getInteraction } from './interaction';
import { registerLayer } from './layer';
const version = Global.version;
export {
version,
Scene
Scene,
Source,
registerParser,
registerTransform,
registerLayer,
registerInteraction,
getInteraction
};

16
src/interaction/active.js Normal file
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@ -0,0 +1,16 @@
import Interaction from './base';
export default class Active extends Interaction {
constructor(cfg) {
super({
processEvent: 'mousemove',
resetEvent: 'mouseleave',
...cfg
});
}
process(ev) {
this.layer._addActiveFeature(ev);
}
reset() {
this.layer._resetStyle();
}
}

87
src/interaction/base.js Normal file
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@ -0,0 +1,87 @@
import * as _ from '@antv/util';
const EVENT_TYPES = [ 'start', 'process', 'end', 'reset' ];
export default class Interaction {
constructor(cfg) {
const defaultCfg = this._getDefaultCfg();
Object.assign(this, defaultCfg, cfg);
this._eventHandlers = [];
this._bindEvents();
}
_getDefaultCfg() {
return {
startEvent: 'mousedown',
processEvent: 'mousemove',
endEvent: 'mouseup',
resetEvent: 'dblclick'
};
}
_start(ev) {
this.preStart(ev);
this.start(ev);
this.afterStart(ev);
}
preStart() {}
start() {}
afterStart() {}
_process(ev) {
this.preProcess(ev);
this.process(ev);
this.afterProcess(ev);
}
preProcess() {}
process() {
}
afterProcess() {}
_end(ev) {
this.preEnd(ev);
this.end(ev);
this.afterEnd(ev);
}
preEnd() {}
end() {}
afterEnd() {}
_reset() {
this.preReset();
this.reset();
this.afterReset();
}
preReset() {}
reset() {}
afterReset() {}
_bindEvents() {
_.each(EVENT_TYPES, type => {
const eventName = this[`${type}Event`];
const handler = _.wrapBehavior(this, `_${type}`);
this.layer.on(eventName, handler);
this._eventHandlers.push({ type: eventName, handler });
});
}
_unbindEvents() {
const eventHandlers = this._eventHandlers;
_.each(eventHandlers, eh => {
this.layer.off(eh.type, eh.handler);
});
}
destory() {
this._unbindEvents();
this._reset();
}
}

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@ -0,0 +1,14 @@
export const INTERACTION_MAP = {};
export const getInteraction = type => {
return INTERACTION_MAP[type];
};
export const registerInteraction = (type, ctor) => {
// 注册的时候,需要校验 type 重名,不区分大小写
if (getInteraction(type)) {
throw new Error(`Interaction type '${type}' existed.`);
}
// 存储到 map 中
INTERACTION_MAP[type] = ctor;
};

58
src/interaction/hash.js Normal file
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@ -0,0 +1,58 @@
import Interaction from './base';
import throttle from '@antv/util/src/throttle.js';
export default class Hash extends Interaction {
constructor(cfg) {
super({
endEvent: 'camerachange',
...cfg
});
window.addEventListener('hashchange', this._onHashChange.bind(this), false);
this._updateHash = throttle(this._updateHashUnthrottled.bind(this), 20 * 1000 / 100);
}
end() {
this._updateHash();
}
reset() {
this.layer._resetStyle();
}
_getHashString() {
const center = this.layer.getCenter(),
zoom = Math.round(this.layer.getZoom() * 100) / 100,
// derived from equation: 512px * 2^z / 360 / 10^d < 0.5px
precision = Math.ceil((zoom * Math.LN2 + Math.log(512 / 360 / 0.5)) / Math.LN10),
m = Math.pow(10, precision),
lng = Math.round(center.lng * m) / m,
lat = Math.round(center.lat * m) / m,
bearing = this.layer.getRotation(),
pitch = this.layer.getPitch();
let hash = '';
hash += `#${zoom}/${lat}/${lng}`;
if (bearing || pitch) hash += (`/${Math.round(bearing * 10) / 10}`);
if (pitch) hash += (`/${Math.round(pitch)}`);
return hash;
}
_onHashChange() {
const loc = window.location.hash.replace('#', '').split('/');
if (loc.length >= 3) {
this.layer.setStatus({
center: [ +loc[2], +loc[1] ],
zoom: +loc[0],
bearing: +(loc[3] || 0),
pitch: +(loc[4] || 0)
});
return true;
}
return false;
}
_updateHashUnthrottled() {
const hash = this._getHashString();
window.history.replaceState(window.history.state, '', hash);
}
destory() {
window.removeEventListener('hashchange', this._onHashChange, false);
this.layer.off('camerachange', this._updateHash);
clearTimeout(this._updateHash());
return this;
}
}

11
src/interaction/index.js Normal file
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@ -0,0 +1,11 @@
import Interaction from './base';
import Active from './active';
import Select from './select';
import Hash from './hash';
import { getInteraction, registerInteraction } from './factory';
registerInteraction('active', Active);
registerInteraction('select', Select);
registerInteraction('hash', Hash);
export { Interaction, registerInteraction, getInteraction };

12
src/interaction/select.js Normal file
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@ -0,0 +1,12 @@
import Interaction from './base';
export default class Select extends Interaction {
constructor(cfg) {
super({
processEvent: 'click',
...cfg
});
}
process(ev) {
this.layer._addActiveFeature(ev);
}
}

View File

@ -10,12 +10,7 @@ export default class HeatMapLayer extends Layer {
this.shapeType = type;
return this;
}
render() {
this._prepareRender();
return this;
}
_prepareRender() {
this.init();
draw() {
this.type = 'heatmap';
switch (this.shapeType) {
case 'grid' :
@ -56,10 +51,4 @@ export default class HeatMapLayer extends Layer {
this.add(girdMesh);
}
// afterRender() {
// if (this.shapeType !== 'grid' && this.shapeType !== 'hexagon') {
// updateIntensityPass(this);
// }
// }
}

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@ -4,8 +4,7 @@ import ImageBuffer from '../geom/buffer/image';
// import ImageGeometry from '../geom/bufferGeometry/image';
import ImageMaterial from '../geom/material/imageMaterial';
export default class imageLayer extends Layer {
render() {
this.init();
draw() {
this.type = 'image';
const source = this.layerSource;
const { opacity } = this.get('styleOptions');

View File

@ -14,4 +14,5 @@ registerLayer('RasterLayer', RasterLayer);
registerLayer('HeatmapLayer', HeatmapLayer);
export { LAYER_MAP } from './factory';
export { registerLayer };

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@ -1,112 +1,45 @@
import Layer from '../core/layer';
import * as THREE from '../core/three';
import DrawLine from './render/line/drawMeshLine';
import DrawArc from './render/line/drawArc';
import { LineBuffer } from '../geom/buffer/index';
import { LineMaterial, ArcLineMaterial, MeshLineMaterial, DashLineMaterial } from '../geom/material/lineMaterial';
export default class LineLayer extends Layer {
shape(type) {
this.shapeType = type;
return this;
}
render() {
this.type = 'polyline';
this.init();
const layerData = this.layerData;
const style = this.get('styleOptions');
const buffer = this._buffer = new LineBuffer({
layerData,
shapeType: this.shapeType,
style
});
const { opacity } = this.get('styleOptions');
const animateOptions = this.get('animateOptions');
const activeOption = this.get('activedOptions');
const geometry = new THREE.BufferGeometry();
const { attributes } = buffer;
if (this.shapeType === 'arc') {
geometry.setIndex(attributes.indexArray);
geometry.addAttribute('pickingId', new THREE.Float32BufferAttribute(attributes.pickingIds, 1));
geometry.addAttribute('position', new THREE.Float32BufferAttribute(attributes.positions, 3));
geometry.addAttribute('a_color', new THREE.Float32BufferAttribute(attributes.colors, 4));
geometry.addAttribute('a_instance', new THREE.Float32BufferAttribute(attributes.instances, 4));
geometry.addAttribute('a_size', new THREE.Float32BufferAttribute(attributes.sizes, 1));
const material = new ArcLineMaterial({
u_opacity: opacity,
u_zoom: this.scene.getZoom(),
activeColor: activeOption.fill
});
const mesh = new THREE.Mesh(geometry, material);
this.add(mesh);
} else if (this.shapeType === 'line') {
geometry.setIndex(attributes.indexArray);
geometry.addAttribute('pickingId', new THREE.Float32BufferAttribute(attributes.pickingIds, 1));
geometry.addAttribute('position', new THREE.Float32BufferAttribute(attributes.positions, 3));
geometry.addAttribute('a_color', new THREE.Float32BufferAttribute(attributes.colors, 4));
geometry.addAttribute('a_size', new THREE.Float32BufferAttribute(attributes.sizes, 1));
geometry.addAttribute('normal', new THREE.Float32BufferAttribute(attributes.normal, 3));
geometry.addAttribute('a_miter', new THREE.Float32BufferAttribute(attributes.miter, 1));
geometry.addAttribute('a_distance', new THREE.Float32BufferAttribute(attributes.attrDistance, 1));
const lineType = style.lineType;
let material;
if (lineType !== 'dash') {
material = new MeshLineMaterial({
u_opacity: opacity,
u_zoom: this.scene.getZoom(),
activeColor: activeOption.fill
});
if (animateOptions.enable) {
material.setDefinesvalue('ANIMATE', true);
this.scene.startAnimate();
const { duration, interval, trailLength, repeat = Infinity } = animateOptions;
this.animateDuration = this.scene._engine.clock.getElapsedTime() + duration * repeat;
material.upDateUninform({
u_duration: duration,
u_interval: interval,
u_trailLength: trailLength
});
}
} else {
geometry.addAttribute('a_distance', new THREE.Float32BufferAttribute(attributes.attrDistance, 1));
material = new DashLineMaterial({
u_opacity: opacity,
u_zoom: this.scene.getZoom(),
activeColor: activeOption.fill
});
}
const mesh = new THREE.Mesh(geometry, material);
this.add(mesh);
} else { // 直线
geometry.addAttribute('pickingId', new THREE.Float32BufferAttribute(attributes.pickingIds, 1));
geometry.addAttribute('position', new THREE.Float32BufferAttribute(attributes.vertices, 3));
geometry.addAttribute('a_color', new THREE.Float32BufferAttribute(attributes.colors, 4));
const material = new LineMaterial({
u_opacity: opacity,
u_time: 0,
activeColor: activeOption.fill
});
if (animateOptions.enable) {
material.setDefinesvalue('ANIMATE', true);
this.scene.startAnimate();
}
const mesh = new THREE.LineSegments(geometry, material);
this.add(mesh);
}
return this;
}
preRender() {
if (this.animateDuration > 0 && this.animateDuration < this.scene._engine.clock.getElapsedTime()) {
if (
this.animateDuration > 0 &&
this.animateDuration < this.scene._engine.clock.getElapsedTime()
) {
this.layerMesh.material.setDefinesvalue('ANIMATE', false);
this.emit('animateEnd');
this.scene.stopAnimate();
this.animateDuration = Infinity;
}
}
draw() {
this.type = 'polyline';
const layerData = this.layerData;
const style = this.get('styleOptions');
const animateOptions = this.get('animateOptions');
const activeOption = this.get('activedOptions');
const layerCfg = {
zoom: this.scene.getZoom(),
style,
animateOptions,
activeOption
};
const buffer = (this._buffer = new LineBuffer({
layerData,
shapeType: this.shapeType,
style
}));
const { attributes } = buffer;
if (this.shapeType === 'arc') {
DrawArc(attributes, layerCfg, this);
} else {
DrawLine(attributes, layerCfg, this);
}
}
}

View File

@ -14,21 +14,8 @@ const { pointShape } = Global;
*/
export default class PointLayer extends Layer {
render() {
draw() {
this.type = 'point';
this.init();
if (!this._hasRender) {
this._prepareRender(this.shapeType);
this._hasRender = true;
} else {
this._initAttrs();
this._needUpdateFilter || this._needUpdateColor
? this._updateFilter()
: null;
}
return this;
}
_prepareRender() {
const { stroke, fill } = this.get('styleOptions');
const style = this.get('styleOptions');
const activeOption = this.get('activedOptions');
@ -37,6 +24,7 @@ export default class PointLayer extends Layer {
activeColor: activeOption.fill
};
const pointShapeType = this._getShape();
this.shapeType = pointShapeType;
switch (pointShapeType) {
case 'fill': { // 填充图形
if (fill !== 'none') {
@ -112,4 +100,33 @@ export default class PointLayer extends Layer {
}
return 'text';
}
zoomchange(ev) {
super.zoomchange(ev);
this._updateData();
}
dragend(ev) {
super.dragend(ev);
this._updateData();
}
_updateData() {
if (this.layerSource.get('isCluster')) {
const bounds = this.scene.getBounds().toBounds();
const SW = bounds.getSouthWest();
const NE = bounds.getNorthEast();
const zoom = this.scene.getZoom();
const step = Math.max(NE.lng - SW.lng, NE.lat - SW.lat) / 2;
const bbox = [ SW.lng, SW.lat, NE.lng, NE.lat ];
// const bbox = [ SW.lng - step, SW.lat - step, NE.lng + step, NE.lat + step ];
const cfg = this.layerSource.get('cluster');
const preBox = cfg.bbox;
const preZoom = cfg.zoom;
if (!(preBox && preBox[0] < bbox[0] && preBox[1] < bbox[1] && preBox[2] > bbox[2] && preBox[3] < bbox[3] && // 当前范围在范围内
(Math.abs(zoom - preZoom)) < 0.5)) {
const newbbox = [ SW.lng - step, SW.lat - step, NE.lng + step, NE.lat + step ];
this.layerSource.updateCusterData(Math.floor(zoom - 1), newbbox);
this.repaint();
}
}
}
}

View File

@ -6,19 +6,7 @@ export default class PolygonLayer extends Layer {
this.shape = type;
return this;
}
render() {
if (!this._hasRender) { // 首次渲染
this._hasRender = true;
this._prepareRender();
} else {
this._initAttrs();
(this._needUpdateFilter || this._needUpdateColor) ? this._updateFilter(this.layerMesh) : null;
// TODO update Style;
}
return this;
}
_prepareRender() {
draw() {
this.init();
this.type = 'polygon';
this._buffer = new PolygonBuffer({
@ -29,7 +17,6 @@ export default class PolygonLayer extends Layer {
}
update() {
this.updateFilter(this.layerMesh);
// 动态更新相关属性
}
_getLayerRender() {
const animateOptions = this.get('animateOptions');

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@ -5,9 +5,8 @@ import { RasterBuffer } from '../geom/buffer/raster';
export default class RasterLayer extends Layer {
render() {
draw() {
this.type = 'raster';
this.init();
const source = this.layerSource;
// 加载 完成事件
const styleOptions = this.get('styleOptions');

View File

@ -10,7 +10,8 @@ import * as THREE from '../../../core/three';
export function drawHeatmap(layer) {
const colors = layer.get('styleOptions').rampColors;
layer.colorRamp = createColorRamp(colors);
layer.rampColors = createColorRamp(colors);
const heatmap = new heatmapPass(layer);
const copy = new copyPass(layer);
copy.renderToScreen = true;
@ -18,31 +19,42 @@ export function drawHeatmap(layer) {
composer.addPass(heatmap);
composer.addPass(copy);
layer.add(composer);
layer.scene._engine.update();
layer._updateStyle = style => {
if (style.rampColors) {
style.rampColors = createColorRamp(style.rampColors);
}
const newOption = { };
for (const key in style) {
newOption['u_' + key] = style[key];
}
heatmap.scene.children[0].material.updateUninform(newOption);
copy.scene.children[0].material.updateUninform(newOption);
};
}
function heatmapPass(layer) {
const scene = new THREE.Scene();
const style = layer.get('styleOptions');
const data = layer.layerData;
const camera = layer.scene._engine._camera;
// get attributes data
// get attributes data
const buffer = new HeatmapBuffer({
data
});
const attributes = buffer.attributes;
// create geometery
// create geometery
const geometry = new THREE.BufferGeometry();
// geometry.setIndex(attributes.indices);
// geometry.setIndex(attributes.indices);
geometry.addAttribute('position', new THREE.Float32BufferAttribute(attributes.vertices, 3));
geometry.addAttribute('a_dir', new THREE.Float32BufferAttribute(attributes.dirs, 2));
geometry.addAttribute('a_weight', new THREE.Float32BufferAttribute(attributes.weights, 1));
const material = new HeatmapIntensityMaterial({
intensity: style.intensity,
radius: style.radius,
zoom: layer.scene.getZoom()
});
u_intensity: style.intensity,
u_radius: style.radius,
u_zoom: layer.scene.getZoom()
}, {});
const mesh = new THREE.Mesh(geometry, material);
scene.add(mesh);
scene.onBeforeRender = () => { // 每次渲染前改变状态
@ -55,9 +67,9 @@ function heatmapPass(layer) {
function copyPass(layer) {
const style = layer.get('styleOptions');
const material = new HeatmapColorizeMaterial({
colorRamp: layer.colorRamp,
opacity: style.opacity
});
u_rampColors: layer.rampColors,
u_opacity: style.opacity
}, {});
const copyPass = new ShaderPass(material, 'u_texture');
return copyPass;
}

View File

@ -1,6 +1,7 @@
import * as THREE from '../../../core/three';
import { ArcLineMaterial } from '../../../geom/material/lineMaterial';
export default function DrawArcLine(attributes, style) {
export default function DrawArcLine(attributes, cfg, layer) {
const { style, activeOption } = cfg;
const { opacity, zoom } = style;
const geometry = new THREE.BufferGeometry();
geometry.setIndex(attributes.indexArray);
@ -10,10 +11,11 @@ export default function DrawArcLine(attributes, style) {
geometry.addAttribute('a_size', new THREE.Float32BufferAttribute(attributes.sizes, 1));
const lineMaterial = new ArcLineMaterial({
u_opacity: opacity,
u_zoom: zoom
u_zoom: zoom,
activeColor: activeOption.fill
}, {
SHAPE: false
});
const arcMesh = new THREE.Mesh(geometry, lineMaterial);
return arcMesh;
layer.add(arcMesh);
}

View File

@ -1,7 +1,7 @@
import * as THREE from '../../../core/three';
import { MeshLineMaterial } from '../../../geom/material/lineMaterial';
export default function DrawLine(attributes, style) {
const { opacity, zoom, animate, duration, interval, trailLength } = style;
export default function DrawLine(attributes, cfg, layer) {
const { style, animateOptions, activeOption, zoom } = cfg;
const geometry = new THREE.BufferGeometry();
geometry.setIndex(attributes.indexArray);
geometry.addAttribute('pickingId', new THREE.Float32BufferAttribute(attributes.pickingIds, 1));
@ -11,17 +11,34 @@ export default function DrawLine(attributes, style) {
geometry.addAttribute('normal', new THREE.Float32BufferAttribute(attributes.normal, 3));
geometry.addAttribute('a_miter', new THREE.Float32BufferAttribute(attributes.miter, 1));
geometry.addAttribute('a_distance', new THREE.Float32BufferAttribute(attributes.attrDistance, 1));
const lineMaterial = new MeshLineMaterial({
u_opacity: opacity,
u_opacity: style.opacity,
u_zoom: zoom,
u_duration: duration,
u_interval: interval,
u_trailLength: trailLength,
u_time: 0
u_time: 0,
activeColor: activeOption.fill
}, {
SHAPE: false,
ANIMATE: animate
ANIMATE: false
});
const arcMesh = new THREE.Mesh(geometry, lineMaterial);
return arcMesh;
const lineMesh = new THREE.Mesh(geometry, lineMaterial);
if (animateOptions.enable) {
layer.scene.startAnimate();
const {
duration = 2,
interval = 0.5,
trailLength = 0.5,
repeat = Infinity
} = animateOptions;
layer.animateDuration =
layer.scene._engine.clock.getElapsedTime() + duration * repeat;
lineMaterial.updateUninform({
u_duration: duration,
u_interval: interval,
u_trailLength: trailLength
});
lineMaterial.setDefinesvalue('ANIMATE', true);
}
layer.add(lineMesh);
}

View File

@ -37,7 +37,7 @@ export default function DrawText(attributes, style) {
attributes.fontAtlas.width,
attributes.fontAtlas.height
],
u_gamma: 0.2,
u_gamma: (1.0 / 12.0) * (1.4142135623730951 / (2.0)),
u_buffer: 0.75,
u_opacity: opacity,
u_glSize: [ width, height ],

View File

@ -25,7 +25,7 @@ export default function DrawAnimate(attributes, style) {
}
DrawAnimate.prototype.updateStyle = function(style) {
this.fillPolygonMesh.material.upDateUninform({
this.fillPolygonMesh.material.updateUninform({
u_opacity: style.opacity,
u_baseColor: style.baseColor,
u_brightColor: style.brightColor,

137
src/layer/tile/imageTile.js Normal file
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@ -0,0 +1,137 @@
// import * as THREE from '../../core/three';
// import Tile from './tile';
// export default class ImageTile extends Tile {
// constructor(layer, z, x, y) {
// }
// requestTileAsync() {
// // Making this asynchronous really speeds up the LOD framerate
// setTimeout(() => {
// if (!this._mesh) {
// this._mesh = this._createMesh();
// this._requestTile();
// }
// }, 0);
// }
// _requestTile() {
// const urlParams = {
// x: this._tile[0],
// y: this._tile[1],
// z: this._tile[2]
// };
// const url = this._getTileURL(urlParams);
// const image = document.createElement('img');
// image.addEventListener('load', event => {
// const texture = new THREE.Texture();
// texture.image = image;
// texture.needsUpdate = true;
// // Silky smooth images when tilted
// texture.magFilter = THREE.LinearFilter;
// texture.minFilter = THREE.LinearMipMapLinearFilter;
// // TODO: Set this to renderer.getMaxAnisotropy() / 4
// texture.anisotropy = 4;
// texture.needsUpdate = true;
// // Something went wrong and the tile or its material is missing
// //
// // Possibly removed by the cache before the image loaded
// if (!this._mesh || !this._mesh.children[0] || !this._mesh.children[0].material) {
// return;
// }
// this._mesh.children[0].material.map = texture;
// this._mesh.children[0].material.needsUpdate = true;
// this._texture = texture;
// this._ready = true;
// }, false);
// // image.addEventListener('progress', event => {}, false);
// // image.addEventListener('error', event => {}, false);
// image.crossOrigin = '';
// // Load image
// image.src = url;
// this._image = image;
// }
// _createMesh() {
// // Something went wrong and the tile
// //
// // Possibly removed by the cache before loaded
// if (!this._center) {
// return;
// }
// const mesh = new THREE.Object3D();
// const geom = new THREE.PlaneBufferGeometry(this._side, this._side, 1);
// let material;
// if (!this._world._environment._skybox) {
// material = new THREE.MeshBasicMaterial({
// depthWrite: false
// });
// // const material = new THREE.MeshPhongMaterial({
// // depthWrite: false
// // });
// } else {
// // Other MeshStandardMaterial settings
// //
// // material.envMapIntensity will change the amount of colour reflected(?)
// // from the environment mapcan be greater than 1 for more intensity
// material = new THREE.MeshStandardMaterial({
// depthWrite: false
// });
// material.roughness = 1;
// material.metalness = 0.1;
// material.envMap = this._world._environment._skybox.getRenderTarget();
// }
// const localMesh = new THREE.Mesh(geom, material);
// localMesh.rotation.x = -90 * Math.PI / 180;
// localMesh.receiveShadow = true;
// mesh.add(localMesh);
// mesh.renderOrder = 0.1;
// mesh.position.x = this._center[0];
// mesh.position.z = this._center[1];
// // const box = new BoxHelper(localMesh);
// // mesh.add(box);
// //
// // mesh.add(this._createDebugMesh());
// return mesh;
// }
// _abortRequest() {
// if (!this._image) {
// return;
// }
// this._image.src = '';
// }
// destroy() {
// // Cancel any pending requests
// this._abortRequest();
// // Clear image reference
// this._image = null;
// super.destroy();
// }
// }

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@ -0,0 +1,22 @@
import LRUCache from '../../util/lru-cache';
export default class TileCache {
constructor(limit = 50) {
this._cache = new LRUCache(limit);
}
getTile(z, x, y) {
const key = this._generateKey(z, x, y);
return this._cache.get(key);
}
setTile(tile, z, x, y) {
const key = this._generateKey(z, x, y);
this._cache.set(key, tile);
}
_generateKey(z, x, y) {
return [ z, x, y ].join('_');
}
destory() {
this._cache.clear();
}
}

59
src/layer/tile/tile.js Normal file
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@ -0,0 +1,59 @@
// const r2d = 180 / Math.PI;
// const tileURLRegex = /\{([zxy])\}/g;
// export class Tile {
// constructor(layer, z, x, y) {
// this.layer = layer;
// this._tile = [ z, x, y ];
// }
// _createMesh() {}
// _createDebugMesh() {}
// _getTileURL(urlParams) {
// if (!urlParams.s) {
// // Default to a random choice of a, b or c
// urlParams.s = String.fromCharCode(97 + Math.floor(Math.random() * 3));
// }
// tileURLRegex.lastIndex = 0;
// return this._path.replace(tileURLRegex, function(value, key) {
// // Replace with paramter, otherwise keep existing value
// return urlParams[key];
// });
// }
// _tileBoundsFromWGS84(boundsWGS84) {
// const sw = this._layer._world.latLonToPoint(LatLon(boundsWGS84[1], boundsWGS84[0]));
// const ne = this._layer._world.latLonToPoint(LatLon(boundsWGS84[3], boundsWGS84[2]));
// return [sw.x, sw.y, ne.x, ne.y];
// }
// // Get tile bounds in WGS84 coordinates
// _tileBoundsWGS84(tile) {
// const e = this._tile2lon(tile[0] + 1, tile[2]);
// const w = this._tile2lon(tile[0], tile[2]);
// const s = this._tile2lat(tile[1] + 1, tile[2]);
// const n = this._tile2lat(tile[1], tile[2]);
// return [ w, s, e, n ];
// }
// _tile2lon(x, z) {
// return x / Math.pow(2, z) * 360 - 180;
// }
// _tile2lat(y, z) {
// const n = Math.PI - 2 * Math.PI * y / Math.pow(2, z);
// return r2d * Math.atan(0.5 * (Math.exp(n) - Math.exp(-n)));
// }
// _boundsToCenter(bounds) {
// const x = bounds[0] + (bounds[2] - bounds[0]) / 2;
// const y = bounds[1] + (bounds[3] - bounds[1]) / 2;
// return [ x, y ];
// }
// destory() {
// }
// }

View File

@ -128,6 +128,9 @@ export default class GaodeMap extends Base {
scene.setZoom = zoom => {
return map.setZoom(zoom);
};
scene.getBounds = () => {
return map.getBounds();
};
scene.setZoomAndCenter = (zoom, center) => {
const lnglat = new AMap.LngLat(center[0], center[1]);
return map.setZoomAndCenter(zoom, lnglat);
@ -138,6 +141,9 @@ export default class GaodeMap extends Base {
scene.setRotation = rotation => {
return map.setRotation(rotation);
};
scene.setStatus = status => {
return map.setStatus(status);
};
scene.zoomIn = () => {
return map.zoomIn();
};

View File

@ -1,11 +1,10 @@
import * as turfMeta from '@turf/meta';
import { default as cleanCoords } from '@turf/clean-coords';
import { getCoords } from '@turf/invariant';
export default function geoJSON(data) {
const resultData = [];
turfMeta.flattenEach(data, (currentFeature, featureIndex) => { // 多个polygon 拆成一个
const coord = getCoords(cleanCoords(currentFeature));
const coord = getCoords(currentFeature);
const dataItem = {
...currentFeature.properties,
coordinates: coord,

View File

@ -1,6 +1,6 @@
import Supercluster from 'supercluster';
export function cluster(data, option) {
const { radius = 40, maxZoom = 16, minZoom = 0, field, zoom = 2 } = option;
const { radius = 80, maxZoom = 18, minZoom = 0, field, zoom = 2 } = option;
if (data.pointIndex) {
const clusterPoint = data.pointIndex.getClusters(data.extent, zoom);
data.dataArray = formatData(clusterPoint);
@ -38,10 +38,9 @@ export function cluster(data, option) {
};
});
data.dataArray = resultData;
data.pointIndex = pointIndex;
return data;
return { data, pointIndex };
}
function formatData(clusterPoint) {
export function formatData(clusterPoint) {
return clusterPoint.map((point, index) => {
return {
coordinates: point.geometry.coordinates,

38
src/util/diff.js Normal file
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@ -0,0 +1,38 @@
import * as _ from '@antv/util';
export default function diff(a, b) {
// Throw is a or b are not objects.
if (!_.isPlainObject(a)) {
throw new Error('First parameter to diff() is not an object');
}
if (!_.isPlainObject(b)) {
throw new Error('Second parameter to diff() is not an object');
}
const changes = [];
const keysA = _.keys(a);
const keysB = _.keys(b);
// Find the items in A that are not in B.
_.each(_.difference(keysA, keysB), key => {
changes.push({ type: 'remove', key, value: a[key] });
});
// Find the items in B that are not in A.
_.each(_.difference(keysB, keysA), key => {
changes.push({ type: 'add', key, value: b[key] });
});
// Find the items that are in both, but have changed.
_.each(intersection(keysA, keysB), key => {
if (!_.isEqual(a[key], b[key])) {
changes.push({ type: 'update', key, value: b[key] });
}
});
return changes;
}
function intersection(keysA, keysB) {
return keysA.filter(key => {
return keysB.indexOf(key) > -1;
});
}

View File

@ -41,3 +41,73 @@ export function buildMapping({
canvasHeight: nextPowOfTwo(yOffset + (row + 1) * rowHeight)
};
}
function buildRowMapping(mapping, columns, yOffset) {
for (let i = 0; i < columns.length; i++) {
const { icon, xOffset } = columns[i];
mapping[icon.id] = Object.assign({}, icon, {
x: xOffset,
y: yOffset,
image: icon.image
});
}
}
export function resizeImage(ctx, imageData, width, height) {
const { naturalWidth, naturalHeight } = imageData;
if (width === naturalWidth && height === naturalHeight) {
return imageData;
}
ctx.canvas.height = height;
ctx.canvas.width = width;
ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
// image, sx, sy, sWidth, sHeight, dx, dy, dWidth, dHeight
ctx.drawImage(imageData, 0, 0, naturalWidth, naturalHeight, 0, 0, width, height);
return ctx.canvas;
}
export function buildIconMaping({ icons, buffer, maxCanvasWidth }) {
let xOffset = 0;
let yOffset = 0;
let rowHeight = 0;
let columns = [];
const mapping = {};
for (let i = 0; i < icons.length; i++) {
const icon = icons[i];
if (!mapping[icon.id]) {
const { height, width } = icon;
// fill one row
if (xOffset + width + buffer > maxCanvasWidth) {
buildRowMapping(mapping, columns, yOffset);
xOffset = 0;
yOffset = rowHeight + yOffset + buffer;
rowHeight = 0;
columns = [];
}
columns.push({
icon,
xOffset
});
xOffset = xOffset + width + buffer;
rowHeight = Math.max(rowHeight, height);
}
}
if (columns.length > 0) {
buildRowMapping(mapping, columns, yOffset);
}
const canvasHeight = nextPowOfTwo(rowHeight + yOffset + buffer);
return {
mapping,
canvasHeight
};
}

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@ -1,25 +0,0 @@
import CommonUtil from './common';
import DomUtil from './dom';
const Util = {};
CommonUtil.merge(Util, CommonUtil, DomUtil, {
mixin(c, mixins) {
const Param = c.CFG ? 'CFG' : 'ATTRS';
if (c && mixins) {
c._mixins = mixins;
c[Param] = c[Param] || {};
const temp = {};
Util.each(mixins, function(mixin) {
Util.augment(c, mixin);
const attrs = mixin[Param];
if (attrs) {
Util.merge(temp, attrs);
}
});
c[Param] = Util.merge(temp, c[Param]);
}
}
});
export default Util;

71
src/util/lru-cache.js Normal file
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@ -0,0 +1,71 @@
/**
* LRU Cache class with limit
*
* Update order for each get/set operation
* Delete oldest when reach given limit
*/
export default class LRUCache {
constructor(limit = 5) {
this.limit = limit;
this.clear();
}
clear() {
this._cache = {};
// access/update order, first item is oldest, last item is newest
this._order = [];
}
get(key) {
const value = this._cache[key];
if (value) {
// update order
this._deleteOrder(key);
this._appendOrder(key);
}
return value;
}
set(key, value) {
if (!this._cache[key]) {
// if reach limit, delete the oldest
if (Object.keys(this._cache).length === this.limit) {
this.delete(this._order[0]);
}
this._cache[key] = value;
this._appendOrder(key);
} else {
// if found in cache, delete the old one, insert new one to the first of list
this.delete(key);
this._cache[key] = value;
this._appendOrder(key);
}
}
delete(key) {
const value = this._cache[key];
if (value) {
this._deleteCache(key);
this._deleteOrder(key);
}
}
_deleteCache(key) {
delete this._cache[key];
}
_deleteOrder(key) {
const index = this._order.findIndex(o => o === key);
if (index >= 0) {
this._order.splice(index, 1);
}
}
_appendOrder(key) {
this._order.push(key);
}
}

View File

@ -22,8 +22,8 @@ describe('test shader module', function() {
registerModule('common', commonModule);
registerModule('module1', module1);
it('should import a module correctly.', function() {
// expect(vs).eq('#define PI 3.14');
// expect(fs.replace(/(\s+)|(\n)+|(\r\n)+/g, '')).eqls('#ifdefGL_FRAGMENT_PRECISION_HIGHprecisionhighpfloat;#elseprecisionmediumpfloat;#endif');
// expect(vs).eq('#define PI 3.14');
// expect(fs.replace(/(\s+)|(\n)+|(\r\n)+/g, '')).eqls('#ifdefGL_FRAGMENT_PRECISION_HIGHprecisionhighpfloat;#elseprecisionmediumpfloat;#endif');
});
});

View File

@ -1,7 +1,7 @@
import { expect } from 'chai';
import { pointData } from '../../../asset/data/point';
import { cluster } from '../../../../src/source/transform/cluster';
describe('hexagon Test', function() {
describe('cluster Test', function() {
it('pointToCuster', function() {
const dataArray = pointData.map(item => {
@ -17,7 +17,7 @@ describe('hexagon Test', function() {
dataArray,
extent: [ -180, -85, 180, 85 ]
};
const grid = cluster(data, { radius: 40, field: 'v', zoom: 13 });
expect(grid.dataArray.length).eql(26);
const grid = cluster(data, { radius: 40, field: 'v', zoom: 13, bbox: [ -180, -85, 180, 85 ] });
expect(grid.data.dataArray.length).eql(26);
});
});