refactor grid buffer

demos/03_choropleths_polygon.html

@@ -81,7 +81,6 @@ scene.on('loaded', () => {
         }
     })
     .shape('fill')
-    .pattern('id1')
     .active(true)
     .style({
       opacity: 1

demos/grid.html

@@ -53,16 +53,19 @@ scene.on('loaded', () => {
         },
         {
         type: 'grid',
-        size: 15000,
+        size: 160000,
         field:'v',
         method:'sum'
       }
       ]
     })
-    .shape('grid')
+    .shape('squareColumn')
+    .size('count',(value)=>{
+       return value * 1000;
+    })
     .active({fill:'red'})
     .style({
-      coverage: 0.8
+      coverage: 0.6
     })
     .color('count', ["#002466","#105CB3","#2894E0","#CFF6FF","#FFF5B8","#FFAB5C","#F27049","#730D1C"])
      .render();

src/core/engine/renderer.js

@@ -8,7 +8,7 @@ export default class Renderer {
   }
   initRender() {
     this.renderer = new THREE.WebGLRenderer({
-      antialias: false,
+      antialias: true,
       alpha: true,
       autoClear: false
     });

src/geom/buffer/heatmap/grid_3d.js

@@ -0,0 +1,89 @@
+import BufferBase from '../buffer';
+export default class Grid3D extends BufferBase {
+  _buildFeatures() {
+    const layerData = this.get('layerData');
+    this._offset = 0;
+    const shapeType = this.get('shapeType');
+    layerData.forEach(feature => {
+      this._calculateTop(feature);
+      if (shapeType === 'squareColumn') {
+        this._calculateWall(feature);
+      }
+      delete feature.bufferInfo;
+    });
+  }
+  _initAttributes() {
+    super._initAttributes();
+    this.attributes.miters = new Float32Array(this.verticesCount * 3);
+    this.attributes.normals = new Float32Array(this.verticesCount * 3);
+  }
+  _calculateFeatures() {
+    const layerData = this.get('layerData');
+    const shapeType = this.get('shapeType');
+    if (shapeType === 'squareColumn') {
+      this.verticesCount = layerData.length * 20;
+    } else {
+      this.verticesCount = layerData.length * 4;
+    }
+    this.indexCount = this.verticesCount * 1.5;
+  }
+  _calculateTop(feature) {
+    const [ x, y ] = feature.coordinates;
+    let { size } = feature;
+
+    feature.bufferInfo = {
+      verticesOffset: this._offset
+    };
+    const shapeType = this.get('shapeType');
+    if (shapeType !== 'squareColumn') {
+      size = 0;
+    }
+    this._encodeArray(feature, 4);
+    this.attributes.positions.set([ x, y, size, x, y, size, x, y, size, x, y, size ], this._offset * 3);
+    this.attributes.miters.set([ -1, 1, 1, 1, 1, 1, -1, -1, 1, 1, -1, 1 ], this._offset * 3);
+    this.attributes.normals.set([ 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1 ], this._offset * 3);  // top normal
+    const indexArray = [ 0, 2, 1, 2, 3, 1 ].map(v => { return v + this._offset; });
+    this.indexArray.set(indexArray, this._offset * 1.5);
+    this._offset += 4;
+  }
+  _calculateWall(feature) {
+    const { size } = feature;
+    const [ x, y ] = feature.coordinates;
+    const vertices = [ 1, -1, 1, -1, -1, 1, -1, 1, 1, 1, 1, 1, 1, -1, 1 ];
+    feature.bufferInfo = {
+      verticesOffset: this._offset
+    };
+    this._encodeArray(feature, 20);
+    // front left, back right
+    this.attributes.normals.set([
+      0, -1, 0, 0, -1, 0, 0, -1, 0, 0, -1, 0, // bottom
+      -1, 0, 0, -1, 0, 0, -1, 0, 0, -1, 0, 0, // left
+      0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, // top
+      1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0 // right
+    ], this._offset * 3);  // top normal
+
+    for (let i = 0; i < 4; i++) {
+      this.attributes.positions.set([ x, y, 1, x, y, 1, x, y, 1, x, y, 1 ], this._offset * 3);
+      const prePoint = vertices.slice(i * 3, i * 3 + 3);
+      const nextPoint = vertices.slice(i * 3 + 3, i * 3 + 6);
+      this._calculateExtrudeFace(prePoint, nextPoint, this._offset, this._offset * 1.5, size);
+      this._offset += 4;
+    }
+  }
+  _calculateExtrudeFace(prePoint, nextPoint, positionOffset, indexOffset, size) {
+    this.attributes.miters.set([
+      prePoint[0], prePoint[1], size,
+      nextPoint[0], nextPoint[1], size,
+      prePoint[0], prePoint[1], 0,
+      nextPoint[0], nextPoint[1], 0
+    ],
+      positionOffset * 3);
+    const indexArray = [ 0, 1, 2, 1, 3, 2 ].map(v => { return v + positionOffset; });
+    if (this.get('uv')) {
+      // temp  点亮城市demo
+      this.attributes.uv.set([ 0.1, 0, 0, 0, 0.1, size / 2000, 0, size / 2000 ], positionOffset * 2);
+    }
+    this.indexArray.set(indexArray, indexOffset);
+  }
+
+}

src/geom/buffer/heatmap/hexagon.js

@@ -1,4 +1,4 @@
-import { fill } from '../../shape/polygon';
+import { fill, extrude } from '../../shape/polygon';
 export default function hexagonBuffer(layerData) {
   const attribute = {
     vertices: [],

src/geom/buffer/heatmap/hexagon_3d.js

@@ -0,0 +1,33 @@
+import BufferBase from '../buffer';
+import { fill, extrude } from '../../shape/polygon';
+import { fillPolygon, extrude_Polygon } from '../../extrude';
+import { polygonPath } from '../../shape/path';
+export default class Grid3D extends BufferBase {
+  _buildFeatures() {
+    const layerData = this.get('layerData');
+    this._offset = 0;
+
+    layerData.forEach(feature => {
+
+    });
+  }
+  _initAttributes() {
+    super._initAttributes();
+    this.attributes.miters = new Float32Array(this.verticesCount * 3);
+    this.attributes.normals = new Float32Array(this.verticesCount * 3);
+  }
+  _calculateFeatures() {
+    const hexgonPoints = polygonPath(6);
+    const hexgonFill = fillPolygon([ hexgonPoints ]);
+    const layerData = this.get('layerData');
+    this.verticesCount = hexgonFill.positions.length / 3 * layerData.length;
+    this.indexCount = hexgonFill.indexArray * layerData.length;
+    this.featureBuffer = hexgonFill;
+  }
+  _calculatefill(feature) {
+    // this.
+  }
+  _getPoints(num) {
+    return polygonPath(num);
+  }
+}

src/geom/buffer/index.js

@@ -9,6 +9,10 @@ import ExtrudeBuffer from './polygon/extrude_buffer';
 import MeshLineBuffer from './line/meshline';
 import ArcLineBuffer from './line/arcline';
 
+// heatmap
+
+import Grid3D from './heatmap/grid_3d';
+
 import { registerBuffer, getBuffer } from './factory';
 
 registerBuffer('polygon', 'fill', FillBuffer);
@@ -20,4 +24,9 @@ registerBuffer('line', 'line', MeshLineBuffer);
 registerBuffer('line', 'arc', ArcLineBuffer);
 registerBuffer('line', 'greatCircle', ArcLineBuffer);
 
+// heatmap
+
+registerBuffer('heatmap', 'square', Grid3D);
+registerBuffer('heatmap', 'squareColumn', Grid3D);
+
 export { getBuffer };

src/geom/extrude copy.js

@@ -0,0 +1,107 @@
+import earcut from 'earcut';
+
+/**
+ * 计算是否拉伸
+ * @param {Array} points  点坐标数组
+ * @param {boolean} extrude  是否拉伸
+ * @return {object} 顶点坐标顶点索引
+ */
+export default function extrudePolygon(points, extrude) {
+  // height += Math.random() * 100; // 解决 depth
+  const p1 = points[0][0];
+  const p2 = points[0][points[0].length - 1];
+  const faceUv = [];
+  if (p1[0] === p2[0] && p1[1] === p2[1]) {
+    points[0] = points[0].slice(0, points[0].length - 1);
+  }
+  const n = points[0].length;
+  const flattengeo = earcut.flatten(points);
+  const positions = [];
+  let cells = [];
+  const { dimensions } = flattengeo;
+  const triangles = earcut(flattengeo.vertices, flattengeo.holes, flattengeo.dimensions);
+  cells = triangles;
+
+  const pointCount = flattengeo.vertices.length / dimensions;
+  const { vertices } = flattengeo;
+  extrude ? full() : flat();
+
+
+  function flat() {
+    for (let i = 0; i < pointCount; i++) {
+      positions.push([ vertices[ i * dimensions ], vertices[i * dimensions + 1 ], 0 ]);
+    }
+  }
+  function full() {
+    // 顶部纹理
+    triangles.forEach(() => {
+      faceUv.push(-1, -1);
+    });
+    // 顶部坐标
+
+    for (let i = 0; i < pointCount; i++) {
+      positions.push([ vertices[ i * dimensions ], vertices[i * dimensions + 1 ], 1 ]);
+    }
+    for (let i = 0; i < pointCount; i++) {
+      positions.push([ vertices[ i * dimensions ], vertices[i * dimensions + 1 ], 0 ]);
+    }
+    for (let i = 0; i < n; i++) {
+      if (i === (n - 1)) {
+        cells.push(i, n, i + n);
+        faceUv.push(1, 0, 0, 1, 1, 1);
+        cells.push(i, 0, n);
+        faceUv.push(1, 0, 0, 0, 0, 1);
+      } else {
+        cells.push(i + n, i, i + n + 1);
+        faceUv.push(1, 1, 1, 0, 0, 1);
+        cells.push(i, i + 1, i + n + 1);
+        faceUv.push(1, 0, 0, 0, 0, 1);
+      }
+    }
+  }
+  points = [];
+  return {
+    positions,
+    faceUv,
+    positionsIndex: cells
+  };
+}
+
+export function extrudePolygonLine(points, extrude) {
+  // height += Math.random() * 100; // 解决 depth
+  const p1 = points[0][0];
+  const p2 = points[0][points[0].length - 1];
+  if (p1[0] === p2[0] && p1[1] === p2[1]) {
+    points[0] = points[0].slice(0, points[0].length - 1);
+  }
+
+  const n = points[0].length;
+  const flattengeo = earcut.flatten(points);
+  const positions = [];
+  let cells = [];
+  const triangles = earcut(flattengeo.vertices, flattengeo.holes, flattengeo.dimensions);
+  cells = triangles.map(e => e);
+  extrude === 0 ? flat() : full();
+
+  function flat() {
+    points[0].forEach(p => { positions.push([ p[0], p[1], 0 ]); }); // top
+  }
+  function full() {
+    points[0].forEach(p => { positions.push([ p[0], p[1], 1 ]); }); // top
+    points[0].forEach(p => { positions.push([ p[0], p[1], 0 ]); }); // bottom
+    for (let i = 0; i < n; i++) {
+      if (i === (n - 1)) {
+        cells.push(i + n, n, i);
+        cells.push(0, i, n);
+      } else {
+        cells.push(i + n, i + n + 1, i);
+        cells.push(i + 1, i, i + n + 1);
+      }
+    }
+  }
+  points = [];
+  return {
+    positions,
+    positionsIndex: cells
+  };
+}

src/geom/extrude.js

@@ -105,3 +105,38 @@ export function extrudePolygonLine(points, extrude) {
     positionsIndex: cells
   };
 }
+
+export function fillPolygon(points) {
+  const flattengeo = earcut.flatten(points);
+  const triangles = earcut(flattengeo.vertices, flattengeo.holes, flattengeo.dimensions);
+  return {
+    positions: flattengeo.vertices,
+    indexArray: triangles
+  };
+}
+
+export function extrude_Polygon(points) {
+  const p1 = points[0][0];
+  const p2 = points[0][points[0].length - 1];
+  if (p1[0] === p2[0] && p1[1] === p2[1]) {
+    points[0] = points[0].slice(0, points[0].length - 1);
+  }
+  const n = points[0].length;
+  const flattengeo = earcut.flatten(points);
+  const positions = [];
+  const indexArray = [];
+  positions.push(...flattengeo.vertices);
+  const triangles = earcut(flattengeo.vertices, flattengeo.holes, flattengeo.dimensions);
+  indexArray.push(...triangles);
+  for (let i = 0; i < n; i++) {
+    const prePoint = flattengeo.vertices.slice(i * 3, i * 3 + 3);
+    const nextPoint = flattengeo.vertices.slice(i * 3 + 3, i * 3 + 6);
+    const indexOffset = positions.length;
+    positions.push(prePoint[0], prePoint[1], 1, nextPoint[0], nextPoint[1], 1, prePoint[0], prePoint[1], 0, nextPoint[0], nextPoint[1], 0);
+    indexArray.push([ 1, 2, 0, 3, 2, 1 ].map(v => { return v + indexOffset; }));
+  }
+  return {
+    positions: flattengeo.vertices,
+    indexArray: triangles
+  };
+}

src/geom/material/grid.js

@@ -1,5 +1,6 @@
 import Material from './material';
-import { getModule } from '../../util/shaderModule';
+import { getModule, wrapUniforms } from '../../util/shaderModule';
+import merge from '@antv/util/lib/deep-mix';
 export default class GridMaterial extends Material {
   getDefaultParameters() {
     return {
@@ -19,9 +20,9 @@ export default class GridMaterial extends Material {
   }
   constructor(_uniforms, _defines, parameters) {
     super(parameters);
-    const { uniforms, defines } = this.getDefaultParameters();
-    const { vs, fs } = getModule('grid');
-    this.uniforms = Object.assign(uniforms, this.setUniform(_uniforms));
+    const { defines } = this.getDefaultParameters();
+    const { vs, fs, uniforms } = getModule('grid');
+    this.uniforms = wrapUniforms(merge(uniforms, _uniforms));
     this.type = 'GridMaterial';
     this.defines = Object.assign(defines, _defines);
     this.vertexShader = vs;

src/geom/shader/grid_vert.glsl

@@ -1,5 +1,5 @@
 precision highp float;
-attribute vec2 miter;
+attribute vec3 miter;
 attribute vec4 a_color;
 uniform float u_xOffset;
 uniform float u_yOffset;
@@ -9,15 +9,27 @@ uniform float u_activeId;
 uniform vec4 u_activeColor;
 varying vec4 v_color;
 
+#pragma include "lighting"
+
 void main() {
    mat4 matModelViewProjection = projectionMatrix * modelViewMatrix;
    v_color = a_color;
    v_color.a *= u_opacity;
-    if(pickingId == u_activeId) {
+
+ if(pickingId == u_activeId) {
      v_color = u_activeColor;
-   }
+    }
   float x = position.x + miter.x * u_xOffset * u_coverage;
   float y = position.y + miter.y * u_yOffset * u_coverage;
-  gl_Position = matModelViewProjection * vec4(x, y, position.z, 1.0);
+  float z = position.z + miter.z;
+
+   #ifdef LIGHTING
+      vec3 viewDir = normalize(cameraPosition - vec3(x, y, z));
+      v_color.rgb *= calc_lighting(vec3(x, y, z), normal, viewDir);
+  #endif
+    
+    
+
+  gl_Position = matModelViewProjection * vec4(x, y, z, 1.0);
    worldId = id_toPickColor(pickingId);
 }

src/layer/render/heatmap/gird.js

@@ -1,24 +1,37 @@
 import * as THREE from '../../../core/three';
-import gridBuffer from '../../../geom/buffer/heatmap/grid';
 import GridMaterial from '../../../geom/material/grid';
-export default function DrawGrid(layerdata, layer, source) {
-  const { opacity, coverage } = layer.get('styleOptions');
+import { getBuffer } from '../../../geom/buffer/';
+import { generateLightingUniforms } from '../../../util/shaderModule';
+export default function DrawGrid(layerData, layer, source) {
+  const { opacity, coverage, lights } = layer.get('styleOptions');
   const activeOption = layer.get('activedOptions');
   const { xOffset, yOffset } = source.data;
-  const attributes = new gridBuffer(layerdata);
+
+  // const attributes = new gridBuffer(layerdata);
+  const geometryBuffer = getBuffer(layer.type, layer.shapeType);
+  const buffer = new geometryBuffer({
+    layerData,
+    shapeType: layer.shapeType
+  });
+  const { attributes, indexArray } = buffer;
   const geometry = new THREE.BufferGeometry();
-  geometry.addAttribute('position', new THREE.Float32BufferAttribute(attributes.vertices, 3));
-  geometry.addAttribute('miter', new THREE.Float32BufferAttribute(attributes.miter, 2));
+  geometry.setIndex(new THREE.Uint32BufferAttribute(indexArray, 1));
+  geometry.addAttribute('position', new THREE.Float32BufferAttribute(attributes.positions, 3));
+  geometry.addAttribute('miter', new THREE.Float32BufferAttribute(attributes.miters, 3));
   geometry.addAttribute('a_color', new THREE.Float32BufferAttribute(attributes.colors, 4));
   geometry.addAttribute('pickingId', new THREE.Float32BufferAttribute(attributes.pickingIds, 1));
+  geometry.addAttribute('normal', new THREE.Float32BufferAttribute(attributes.normals, 3));
+
   const material = new GridMaterial({
     u_opacity: opacity,
     u_xOffset: xOffset,
     u_yOffset: yOffset,
     u_coverage: coverage,
-    u_activeColor: activeOption.fill
+    u_activeColor: activeOption.fill,
+    ...generateLightingUniforms(lights)
   }, {
-    SHAPE: false
+    SHAPE: false,
+    LIGHTING: layer.shapeType !== 'square'
   });
   const gridMesh = new THREE.Mesh(geometry, material);
   return gridMesh;

src/layer/render/index.js

@@ -38,7 +38,8 @@ import DrawGrid from './heatmap/gird';
 import DrawHeatmap from './heatmap/heatmap';
 import DrawHexagon from './heatmap/hexagon';
 
-registerRender('heatmap', 'grid', DrawGrid);
+registerRender('heatmap', 'square', DrawGrid);
+registerRender('heatmap', 'squareColumn', DrawGrid);
 registerRender('heatmap', 'heatmap', DrawHeatmap);
 registerRender('heatmap', 'hexagon', DrawHexagon);
 

src/layer/render/polygon/drawLine.js

@@ -1,5 +1,5 @@
 import * as THREE from '../../../core/three';
-import PolygonBuffer from '../../../geom/buffer/polygon';
+import { getBuffer } from '../../../geom/buffer/';
 import { LineMaterial } from '../../../geom/material/lineMaterial';
 export default function DrawPolygonLine(layerData, layer, buffer) {
   const style = layer.get('styleOptions');
@@ -9,13 +9,14 @@ export default function DrawPolygonLine(layerData, layer, buffer) {
     activeColor: activeOption.fill
   };
   const { opacity } = config;
-  let { attributes, indexArray } = buffer;
-  if (!attributes) {
-    attributes = new PolygonBuffer({
-      shape: layer.shape,
+  if (!buffer) {
+    const geometryBuffer = getBuffer(layer.type, layer.shape);
+    buffer = new geometryBuffer({
       layerData
-    }).attributes;
+    });
+
   }
+  const { attributes, indexArray } = buffer;
   const geometry = new THREE.BufferGeometry();
   if (indexArray) {
     geometry.setIndex(new THREE.Uint32BufferAttribute(indexArray, 1));