feat(layer): add repaint method

This commit is contained in:
thinkinggis 2019-03-29 10:21:10 +08:00
parent 30b2fbe015
commit 48de69f7d9
33 changed files with 1017 additions and 233 deletions

105
demos/01_animatePoint.html Normal file
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@ -0,0 +1,105 @@
<!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,
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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@ -39,39 +39,46 @@ const scene = new L7.Scene({
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', [ 2, 30]) // default 1
//.size('value', [ 10, 300]) // default 1
.active(true)
.filter('value', field_8 => {
return field_8 * 1 > 500;
})
.color('type', colorObj.blue)
.color('#2894E0')
.style({
stroke: 'rgb(255,255,255)',
strokeWidth: 1,
opacity: 1.
opacity: 0.8
})
.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)
.size('point_count', [ 0, 16]) // default 1
.color('#f00')
.style({
stroke: '#999',
strokeWidth: 0,
opacity: 1.0
})
.render();
console.log(layerText);
});
});

100
demos/02_animateline.html Normal file
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@ -0,0 +1,100 @@
<!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);
}
console.log( geojson.features[0].geometry.coordinates.length)
// 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 './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 +1,71 @@
/**
* 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);
}
}

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@ -8,7 +8,7 @@ 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 Util from '../util';
import Global from '../global';
@ -53,6 +53,7 @@ export default class Layer extends Base {
activedOptions: {
fill: [ 1.0, 0, 0, 1.0 ]
},
interactions: {},
animateOptions: {
enable: false
}
@ -66,6 +67,7 @@ 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;
@ -88,12 +90,8 @@ export default class Layer extends Base {
this.scene._engine.composerLayers.push(object);
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());
@ -113,7 +111,7 @@ export default class Layer extends Base {
this._addPickMesh(object);// 不对边界线进行拾取
}
this.scene._engine.update();
setTimeout(() => this.scene._engine.update(), 500);
setTimeout(() => this.scene._engine.update(), 200);
}
remove(object) {
if (object.type === 'composer') {
@ -132,8 +130,13 @@ 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',
@ -263,6 +266,10 @@ 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 +323,53 @@ export default class Layer extends Base {
}
return scale;
}
// 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._initInteraction();
this._initMapEvent();
this._mapping();
const activeHander = this._addActiveFeature.bind(this);
const resetHander = this._resetStyle.bind(this);
}
_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;
@ -483,17 +518,6 @@ 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 +526,7 @@ export default class Layer extends Base {
});
}
}
// on(type, callback) {
// this._addPickingEvents();
// super.on(type, callback);
// }
getPickingId() {
return this.scene._engine._picking.getNextId();
}
@ -519,19 +539,9 @@ 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);
@ -542,9 +552,6 @@ 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;
@ -552,6 +559,7 @@ export default class Layer extends Base {
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];
@ -569,39 +577,6 @@ 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
@ -642,6 +617,8 @@ 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;
}
@ -652,6 +629,51 @@ export default class Layer extends Base {
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 +686,8 @@ export default class Layer extends Base {
*/
destroy() {
this.removeAllListeners();
this.clearAllInteractions();
this.clearMapEvent();
if (this._object3D.type === 'composer') {
this.remove(this._object3D);
@ -696,7 +720,6 @@ 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;
}

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@ -69,14 +69,6 @@ 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);

21
src/geom/base.js Normal file
View File

@ -0,0 +1,21 @@
import Base from '../core/base';
export class GeomBase extends Base {
geometryBuffer() {
}
geometry() {
}
material() {
}
drawMesh() {
}
}
export default GeomBase;

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

@ -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

@ -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

@ -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
View File

@ -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
View File

@ -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();
}
}

View File

@ -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;
};

9
src/interaction/index.js Normal file
View File

@ -0,0 +1,9 @@
import Interaction from './base';
import Active from './active';
import Select from './select';
import { getInteraction, registerInteraction } from './factory';
registerInteraction('active', Active);
registerInteraction('select', Select);
export { Interaction, registerInteraction, getInteraction };

12
src/interaction/select.js Normal file
View File

@ -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

@ -11,10 +11,10 @@ export default class HeatMapLayer extends Layer {
return this;
}
render() {
this._prepareRender();
this.draw();
return this;
}
_prepareRender() {
draw() {
this.init();
this.type = 'heatmap';
switch (this.shapeType) {
@ -56,10 +56,4 @@ export default class HeatMapLayer extends Layer {
this.add(girdMesh);
}
// afterRender() {
// if (this.shapeType !== 'grid' && this.shapeType !== 'hexagon') {
// updateIntensityPass(this);
// }
// }
}

View File

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

View File

@ -1,7 +1,12 @@
import Layer from '../core/layer';
import * as THREE from '../core/three';
import { LineBuffer } from '../geom/buffer/index';
import { LineMaterial, ArcLineMaterial, MeshLineMaterial, DashLineMaterial } from '../geom/material/lineMaterial';
import {
LineMaterial,
ArcLineMaterial,
MeshLineMaterial,
DashLineMaterial
} from '../geom/material/lineMaterial';
export default class LineLayer extends Layer {
shape(type) {
this.shapeType = type;
@ -10,26 +15,60 @@ export default class LineLayer extends Layer {
render() {
this.type = 'polyline';
this.init();
this.draw();
return this;
}
preRender() {
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() {
const layerData = this.layerData;
const style = this.get('styleOptions');
const buffer = this._buffer = new LineBuffer({
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 layerCfg = {
// ...style,
// ...animateOptions,
// ...activeOption
// };
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));
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(),
@ -38,20 +77,40 @@ export default class LineLayer extends Layer {
const mesh = new THREE.Mesh(geometry, material);
this.add(mesh);
} else if (this.shapeType === 'line') {
// DrawLine(attributes, layerCfg)
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));
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(),
@ -59,21 +118,27 @@ export default class LineLayer extends Layer {
});
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;
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));
geometry.addAttribute(
'a_distance',
new THREE.Float32BufferAttribute(attributes.attrDistance, 1)
);
material = new DashLineMaterial({
u_opacity: opacity,
u_zoom: this.scene.getZoom(),
@ -82,10 +147,20 @@ export default class LineLayer extends Layer {
}
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));
} 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,
@ -99,14 +174,5 @@ export default class LineLayer extends Layer {
const mesh = new THREE.LineSegments(geometry, material);
this.add(mesh);
}
return this;
}
preRender() {
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;
}
}
}

View File

@ -18,7 +18,7 @@ export default class PointLayer extends Layer {
this.type = 'point';
this.init();
if (!this._hasRender) {
this._prepareRender(this.shapeType);
this.draw();
this._hasRender = true;
} else {
this._initAttrs();
@ -28,7 +28,7 @@ export default class PointLayer extends Layer {
}
return this;
}
_prepareRender() {
draw() {
const { stroke, fill } = this.get('styleOptions');
const style = this.get('styleOptions');
const activeOption = this.get('activedOptions');
@ -37,6 +37,7 @@ 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 +113,33 @@ 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)) < 1)) {
const newbbox = [ SW.lng - step, SW.lat - step, NE.lng + step, NE.lat + step ];
this.layerSource.updateCusterData(Math.floor(zoom), newbbox);
this.repaint();
}
}
}
}

View File

@ -9,7 +9,7 @@ export default class PolygonLayer extends Layer {
render() {
if (!this._hasRender) { // 首次渲染
this._hasRender = true;
this._prepareRender();
this.draw();
} else {
this._initAttrs();
@ -18,7 +18,7 @@ export default class PolygonLayer extends Layer {
}
return this;
}
_prepareRender() {
draw() {
this.init();
this.type = 'polygon';
this._buffer = new PolygonBuffer({
@ -29,7 +29,6 @@ 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');

View File

@ -23,5 +23,21 @@ export default function DrawLine(attributes, style) {
ANIMATE: animate
});
const arcMesh = new THREE.Mesh(geometry, lineMaterial);
if (animate) {
this.scene.startAnimate();
const {
duration,
interval,
trailLength,
repeat = Infinity
} = style;
this.animateDuration =
this.scene._engine.clock.getElapsedTime() + duration * repeat;
lineMaterial.upDateUninform({
u_duration: duration,
u_interval: interval,
u_trailLength: trailLength
});
}
return arcMesh;
}

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

@ -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);

View File

@ -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,

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);
});
});