| | |
| | | import * as THREE from 'three'; |
| | | import * as d3 from 'd3'; |
| | | import mapData from '@/assets/map/zigong2.json'; |
| | | import { CSS2DObject } from 'three/examples/jsm/renderers/CSS2DRenderer'; |
| | | import * as THREE from "three"; |
| | | import * as d3 from "d3"; |
| | | import mapData from "@/assets/map/zigong2.json"; |
| | | import { CSS2DObject } from "three/examples/jsm/renderers/CSS2DRenderer"; |
| | | |
| | | import textureMapImage from '@/assets/map/texture/gz-map.jpg'; |
| | | import textureMapFxImage from '@/assets/map/texture/gz-map-fx.jpg'; |
| | | import textureMapImage from "@/assets/map/texture/gz-map.jpg"; |
| | | import textureMapFxImage from "@/assets/map/texture/gz-map-fx.jpg"; |
| | | |
| | | import gsap from 'gsap'; |
| | | import gsap from "gsap"; |
| | | |
| | | // 地图深度 |
| | | const MAP_DEPTH = 0.2; |
| | | |
| | | const projection = d3.geoMercator().center([104.779307, 29.33924]).translate([0, 0, 0]); |
| | | const projection = d3 |
| | | .geoMercator() |
| | | .center([104.779307, 29.33924]) |
| | | .translate([0, 0, 0]); |
| | | |
| | | const raycaster = new THREE.Raycaster(); |
| | | |
| | | export default class Map { |
| | | constructor(experience) { |
| | | this.experience = experience; |
| | | this.scene = experience.scene; |
| | | this.camera = experience.camera; |
| | | constructor(experience) { |
| | | this.experience = experience; |
| | | this.scene = experience.scene; |
| | | this.camera = experience.camera; |
| | | |
| | | this.provinceMeshList = []; |
| | | this.labelList = []; |
| | | this.textureLoader = new THREE.TextureLoader(); |
| | | this.setTexture(); |
| | | this.operationData(mapData); |
| | | setTimeout(() => { |
| | | this.enterAnimation(); |
| | | }, 500); |
| | | } |
| | | setTexture() { |
| | | const textureMap = this.textureLoader.load(textureMapImage); |
| | | const textureMapFx = this.textureLoader.load(textureMapFxImage); |
| | | textureMap.wrapS = textureMapFx.wrapS = THREE.RepeatWrapping; |
| | | textureMap.wrapT = textureMapFx.wrapT = THREE.RepeatWrapping; |
| | | textureMap.flipY = textureMapFx.flipY = false; |
| | | textureMap.rotation = textureMapFx.rotation = THREE.MathUtils.degToRad(45); |
| | | const scale = 0.128; |
| | | textureMap.repeat.set(scale, scale); |
| | | textureMapFx.repeat.set(scale, scale); |
| | | this.topFaceMaterial = new THREE.MeshPhongMaterial({ |
| | | map: textureMap, |
| | | // color: 0xb4eeea, |
| | | color: 0xb3fffa, |
| | | combine: THREE.MultiplyOperation, |
| | | transparent: true, |
| | | opacity: 1, |
| | | this.provinceMeshList = []; |
| | | this.labelList = []; |
| | | this.textureLoader = new THREE.TextureLoader(); |
| | | this.setTexture(); |
| | | this.operationData(mapData); |
| | | setTimeout(() => { |
| | | this.enterAnimation(); |
| | | }, 500); |
| | | } |
| | | setTexture() { |
| | | const textureMap = this.textureLoader.load(textureMapImage); |
| | | const textureMapFx = this.textureLoader.load(textureMapFxImage); |
| | | textureMap.wrapS = textureMapFx.wrapS = THREE.RepeatWrapping; |
| | | textureMap.wrapT = textureMapFx.wrapT = THREE.RepeatWrapping; |
| | | textureMap.flipY = textureMapFx.flipY = false; |
| | | textureMap.rotation = textureMapFx.rotation = THREE.MathUtils.degToRad(45); |
| | | const scale = 0.128; |
| | | textureMap.repeat.set(scale, scale); |
| | | textureMapFx.repeat.set(scale, scale); |
| | | this.topFaceMaterial = new THREE.MeshPhongMaterial({ |
| | | map: textureMap, |
| | | // color: 0xb4eeea, |
| | | color: 0xb3fffa, |
| | | combine: THREE.MultiplyOperation, |
| | | transparent: true, |
| | | opacity: 1, |
| | | }); |
| | | this.sideMaterial = new THREE.MeshLambertMaterial({ |
| | | color: 0x123024, |
| | | transparent: true, |
| | | opacity: 0.9, |
| | | }); |
| | | } |
| | | |
| | | /** |
| | | * 解析json数据,并绘制地图多边形 |
| | | * @param {*} jsondata 地图数据 |
| | | */ |
| | | operationData(jsondata) { |
| | | this.map = new THREE.Group(); |
| | | |
| | | // geo信息 |
| | | const features = jsondata.features; |
| | | features.forEach((feature) => { |
| | | // 单个省份 对象 |
| | | const province = new THREE.Object3D(); |
| | | // 地址 |
| | | province.properties = feature.properties.name; |
| | | province.isHover = false; |
| | | // 多个情况 |
| | | // console.log(feature.geometry.type); |
| | | if (feature.geometry.type === "MultiPolygon") { |
| | | feature.geometry.coordinates.forEach((coordinate) => { |
| | | coordinate.forEach((rows) => { |
| | | const line = this.drawBoundary(rows); |
| | | const mesh = this.drawExtrudeMesh(rows); |
| | | province.add(line); |
| | | province.add(mesh); |
| | | this.provinceMeshList.push(mesh); |
| | | }); |
| | | }); |
| | | this.sideMaterial = new THREE.MeshLambertMaterial({ |
| | | color: 0x123024, |
| | | transparent: true, |
| | | opacity: 0.9, |
| | | } |
| | | |
| | | // 单个情况 |
| | | if (feature.geometry.type === "Polygon") { |
| | | feature.geometry.coordinates.forEach((coordinate) => { |
| | | const line = this.drawBoundary(coordinate); |
| | | const mesh = this.drawExtrudeMesh(coordinate); |
| | | province.add(line); |
| | | province.add(mesh); |
| | | this.provinceMeshList.push(mesh); |
| | | }); |
| | | } |
| | | const label = this.drawLabelText(feature); |
| | | this.labelList.push({ name: feature.properties.name, label }); |
| | | province.add(label); |
| | | this.map.add(province); |
| | | }); |
| | | this.map.position.set(1, 1, -1.5); |
| | | this.map.scale.set(10, 10, 1); |
| | | this.map.rotation.set( |
| | | THREE.MathUtils.degToRad(-90), |
| | | 0, |
| | | THREE.MathUtils.degToRad(20) |
| | | ); |
| | | this.scene.add(this.map); |
| | | |
| | | this.setMouseEvent(); |
| | | } |
| | | |
| | | /** |
| | | * 画区域分界线 |
| | | * @param {*} polygon 区域坐标点数组 |
| | | * @returns 区域分界线 |
| | | */ |
| | | drawBoundary(polygon) { |
| | | const points = []; |
| | | for (let i = 0; i < polygon.length; i++) { |
| | | const [x, y] = projection(polygon[i]); |
| | | points.push(new THREE.Vector3(x, -y, 0)); |
| | | } |
| | | |
| | | /** |
| | | * 解析json数据,并绘制地图多边形 |
| | | * @param {*} jsondata 地图数据 |
| | | */ |
| | | operationData(jsondata) { |
| | | this.map = new THREE.Group(); |
| | | |
| | | // geo信息 |
| | | const features = jsondata.features; |
| | | features.forEach((feature) => { |
| | | // 单个省份 对象 |
| | | const province = new THREE.Object3D(); |
| | | // 地址 |
| | | province.properties = feature.properties.name; |
| | | province.isHover = false; |
| | | // 多个情况 |
| | | // console.log(feature.geometry.type); |
| | | if (feature.geometry.type === "MultiPolygon") { |
| | | feature.geometry.coordinates.forEach((coordinate) => { |
| | | coordinate.forEach((rows) => { |
| | | const line = this.drawBoundary(rows); |
| | | const mesh = this.drawExtrudeMesh(rows); |
| | | province.add(line); |
| | | province.add(mesh); |
| | | this.provinceMeshList.push(mesh); |
| | | }); |
| | | }); |
| | | } |
| | | |
| | | // 单个情况 |
| | | if (feature.geometry.type === "Polygon") { |
| | | feature.geometry.coordinates.forEach((coordinate) => { |
| | | const line = this.drawBoundary(coordinate); |
| | | const mesh = this.drawExtrudeMesh(coordinate); |
| | | province.add(line); |
| | | province.add(mesh); |
| | | this.provinceMeshList.push(mesh); |
| | | }); |
| | | } |
| | | const label = this.drawLabelText(feature); |
| | | this.labelList.push({ name: feature.properties.name, label }); |
| | | province.add(label); |
| | | this.map.add(province); |
| | | }); |
| | | this.map.position.set(1, 1, -1.5); |
| | | this.map.scale.set(10, 10, 1); |
| | | this.map.rotation.set(THREE.MathUtils.degToRad(-90), 0, THREE.MathUtils.degToRad(20)); |
| | | this.scene.add(this.map); |
| | | |
| | | this.setMouseEvent(); |
| | | const lineGeometry = new THREE.BufferGeometry().setFromPoints(points); |
| | | const lineMaterial = new THREE.LineBasicMaterial({ |
| | | color: 0xffffff, |
| | | linewidth: 2, |
| | | transparent: true, |
| | | depthTest: false, |
| | | }); |
| | | const line = new THREE.Line(lineGeometry, lineMaterial); |
| | | line.translateZ(MAP_DEPTH + 0.001); |
| | | return line; |
| | | } |
| | | /** |
| | | * 绘制区域多边形 |
| | | * @param {*} polygon 区域坐标点数组 |
| | | * @returns 区域多边形 |
| | | */ |
| | | drawExtrudeMesh(polygon) { |
| | | const shape = new THREE.Shape(); |
| | | for (let i = 0; i < polygon.length; i++) { |
| | | const [x, y] = projection(polygon[i]); |
| | | if (i === 0) { |
| | | shape.moveTo(x, -y); |
| | | } |
| | | shape.lineTo(x, -y); |
| | | } |
| | | const geometry = new THREE.ExtrudeGeometry(shape, { |
| | | depth: MAP_DEPTH, |
| | | bevelEnabled: false, |
| | | bevelSegments: 1, |
| | | bevelThickness: 0.1, |
| | | }); |
| | | return new THREE.Mesh(geometry, [this.topFaceMaterial, this.sideMaterial]); |
| | | } |
| | | |
| | | /** |
| | | * 画区域分界线 |
| | | * @param {*} polygon 区域坐标点数组 |
| | | * @returns 区域分界线 |
| | | */ |
| | | drawBoundary(polygon) { |
| | | const points = []; |
| | | for (let i = 0; i < polygon.length; i++) { |
| | | const [x, y] = projection(polygon[i]); |
| | | points.push(new THREE.Vector3(x, -y, 0)); |
| | | } |
| | | const lineGeometry = new THREE.BufferGeometry().setFromPoints(points); |
| | | const lineMaterial = new THREE.LineBasicMaterial({ |
| | | color: 0xffffff, |
| | | linewidth: 2, |
| | | transparent: true, |
| | | depthTest: false, |
| | | }); |
| | | const line = new THREE.Line(lineGeometry, lineMaterial); |
| | | line.translateZ(MAP_DEPTH + 0.001); |
| | | return line; |
| | | drawLabelText(province) { |
| | | const [x, y] = projection(province.properties.center); |
| | | const div = document.createElement("div"); |
| | | // const icon = document.createElement("div"); |
| | | div.innerHTML = province.properties.name; |
| | | div.style.padding = "4px 10px"; |
| | | div.style.color = "#fff"; |
| | | div.style.fontSize = "18px"; |
| | | div.style.position = "absolute"; |
| | | // div.style.display = "flex"; |
| | | // div.style.justifyContent = 'center' |
| | | // div.style.backgroundColor = 'rgba(25,25,25,0.5)'; |
| | | // div.style.border = '5px'; |
| | | // icon.style.borderRadius = '100%' |
| | | // icon.style.background = '#aaffa5' |
| | | // icon.style.width = '10px' |
| | | // icon.style.height = '10px' |
| | | // div.appendChild(icon); |
| | | const label = new CSS2DObject(div); |
| | | div.style.pointerEvents = "none"; |
| | | label.position.set(x, y, MAP_DEPTH + 0.05); |
| | | return label; |
| | | } |
| | | |
| | | setMouseEvent() { |
| | | this.mouseEvent = this.handleEvent.bind(this); |
| | | this.experience.canvas.addEventListener("mousemove", this.mouseEvent); |
| | | } |
| | | |
| | | removeMouseEvent() { |
| | | this.experience.canvas.removeEventListener("mousemove", this.mouseEvent); |
| | | } |
| | | |
| | | handleEvent(e) { |
| | | // console.log(this); |
| | | // return; |
| | | if (this.map) { |
| | | let mouse = new THREE.Vector2(); |
| | | let getBoundingClientRect = |
| | | this.experience.canvas.getBoundingClientRect(); |
| | | let x = |
| | | ((e.clientX - getBoundingClientRect.left) / |
| | | getBoundingClientRect.width) * |
| | | 2 - |
| | | 1; |
| | | let y = |
| | | -( |
| | | (e.clientY - getBoundingClientRect.top) / |
| | | getBoundingClientRect.height |
| | | ) * |
| | | 2 + |
| | | 1; |
| | | mouse.x = x; |
| | | mouse.y = y; |
| | | |
| | | raycaster.setFromCamera(mouse, this.camera.instance); |
| | | |
| | | let intersects = raycaster.intersectObjects(this.provinceMeshList, false); |
| | | |
| | | if (intersects.length) { |
| | | let temp = intersects[0].object; |
| | | this.animation(temp.parent); |
| | | this.showLabel(temp.parent); |
| | | } else { |
| | | this.animation(); |
| | | } |
| | | } |
| | | /** |
| | | * 绘制区域多边形 |
| | | * @param {*} polygon 区域坐标点数组 |
| | | * @returns 区域多边形 |
| | | */ |
| | | drawExtrudeMesh(polygon) { |
| | | const shape = new THREE.Shape(); |
| | | for (let i = 0; i < polygon.length; i++) { |
| | | const [x, y] = projection(polygon[i]); |
| | | if (i === 0) { |
| | | shape.moveTo(x, -y); |
| | | } |
| | | shape.lineTo(x, -y); |
| | | } |
| | | const geometry = new THREE.ExtrudeGeometry(shape, { |
| | | depth: MAP_DEPTH, |
| | | bevelEnabled: false, |
| | | bevelSegments: 1, |
| | | bevelThickness: 0.1, |
| | | }); |
| | | return new THREE.Mesh(geometry, [ |
| | | this.topFaceMaterial, |
| | | this.sideMaterial, |
| | | ]); |
| | | } |
| | | } |
| | | |
| | | drawLabelText(province) { |
| | | const [x, y] = projection(province.properties.center); |
| | | const div = document.createElement('div'); |
| | | div.innerHTML = province.properties.name; |
| | | div.style.padding = '4px 10px'; |
| | | div.style.color = '#fff'; |
| | | div.style.fontSize = '16px'; |
| | | div.style.position = 'absolute'; |
| | | div.style.backgroundColor = 'rgba(25,25,25,0.5)'; |
| | | div.style.borderRadius = '5px'; |
| | | const label = new CSS2DObject(div); |
| | | div.style.pointerEvents = 'none'; |
| | | label.position.set(x, y, MAP_DEPTH + 0.05); |
| | | return label; |
| | | } |
| | | throttle(callback, delay) { |
| | | let lastCall = 0; |
| | | return function () { |
| | | let now = new Date().getTime(); |
| | | if (now - lastCall >= delay) { |
| | | lastCall = now; |
| | | callback.apply(null, arguments); |
| | | } |
| | | }; |
| | | } |
| | | |
| | | |
| | | setMouseEvent() { |
| | | this.mouseEvent = this.handleEvent.bind(this); |
| | | this.experience.canvas.addEventListener("mousemove", this.mouseEvent); |
| | | } |
| | | |
| | | removeMouseEvent() { |
| | | this.experience.canvas.removeEventListener("mousemove", this.mouseEvent); |
| | | } |
| | | |
| | | handleEvent(e) { |
| | | // console.log(this); |
| | | // return; |
| | | if (this.map) { |
| | | let mouse = new THREE.Vector2(); |
| | | let getBoundingClientRect = this.experience.canvas.getBoundingClientRect(); |
| | | let x = ((e.clientX - getBoundingClientRect.left) / getBoundingClientRect.width) * 2 - 1; |
| | | let y = -((e.clientY - getBoundingClientRect.top) / getBoundingClientRect.height) * 2 + 1; |
| | | mouse.x = x; |
| | | mouse.y = y; |
| | | |
| | | raycaster.setFromCamera(mouse, this.camera.instance); |
| | | |
| | | let intersects = raycaster.intersectObjects(this.provinceMeshList, false); |
| | | |
| | | if (intersects.length) { |
| | | let temp = intersects[0].object; |
| | | this.animation(temp.parent); |
| | | this.showLabel(temp.parent); |
| | | } else { |
| | | this.animation(); |
| | | } |
| | | } |
| | | } |
| | | |
| | | throttle(callback, delay) { |
| | | let lastCall = 0; |
| | | return function () { |
| | | let now = new Date().getTime(); |
| | | if (now - lastCall >= delay) { |
| | | lastCall = now; |
| | | callback.apply(null, arguments); |
| | | } |
| | | }; |
| | | } |
| | | |
| | | animation(province) { |
| | | if (province) { |
| | | if (!province.isHover) { |
| | | province.isHover = true; |
| | | this.map.children.forEach((item) => { |
| | | if (item.properties === province.properties) { |
| | | gsap.to(province.position, { |
| | | z: 0.12, |
| | | duration: 0.6 |
| | | }) |
| | | } else { |
| | | this.resetAnimation(item); |
| | | } |
| | | }) |
| | | } |
| | | } else { |
| | | this.resetAllAnimation(); |
| | | } |
| | | |
| | | } |
| | | |
| | | resetAnimation(province) { |
| | | gsap.to(province.position, { |
| | | z: 0, |
| | | duration: 0.6, |
| | | onComplete: () => { |
| | | province.isHover = false; |
| | | } |
| | | }) |
| | | } |
| | | |
| | | resetAllAnimation() { |
| | | animation(province) { |
| | | if (province) { |
| | | if (!province.isHover) { |
| | | province.isHover = true; |
| | | this.map.children.forEach((item) => { |
| | | if (item.properties === province.properties) { |
| | | gsap.to(province.position, { |
| | | z: 0.12, |
| | | duration: 0.6, |
| | | }); |
| | | } else { |
| | | this.resetAnimation(item); |
| | | }) |
| | | } |
| | | |
| | | showLabel(province) { |
| | | this.labelList.forEach((item) => { |
| | | // if (item.name === province.properties) { |
| | | // item.label.element.style.visibility = 'visible'; |
| | | // } else { |
| | | // item.label.element.style.visibility = 'hidden'; |
| | | // } |
| | | }) |
| | | } |
| | | |
| | | enterAnimation() { |
| | | gsap.to(this.map.scale, { |
| | | z: 10, |
| | | duration: 0.6, |
| | | ease: 'power1.out' |
| | | }) |
| | | } |
| | | |
| | | destroy() { |
| | | this.removeMouseEvent(); |
| | | this.disposeObject(); |
| | | this.removeObject(); |
| | | this.resetObject(); |
| | | } |
| | | |
| | | disposeObject() { |
| | | this.map.traverse((child) => { |
| | | if (child.material) { |
| | | // 可能存在材质为数组的情况 |
| | | if (child.material instanceof Array) { |
| | | child.material.forEach((item) => item.dispose()); |
| | | } else { |
| | | child.material.dispose(); |
| | | if (child.material.map) { |
| | | child.material.map.dispose(); |
| | | } |
| | | } |
| | | } |
| | | if (child.geometry) { |
| | | child.geometry.dispose(); |
| | | child.geometry.attributes = null; // 这些属性包括position, normal, uv等等 |
| | | } |
| | | child = null; |
| | | } |
| | | }); |
| | | this.topFaceMaterial.dispose(); |
| | | this.sideMaterial.dispose(); |
| | | } |
| | | } else { |
| | | this.resetAllAnimation(); |
| | | } |
| | | } |
| | | |
| | | removeObject() { |
| | | this.scene.remove(this.map); |
| | | } |
| | | resetAnimation(province) { |
| | | gsap.to(province.position, { |
| | | z: 0, |
| | | duration: 0.6, |
| | | onComplete: () => { |
| | | province.isHover = false; |
| | | }, |
| | | }); |
| | | } |
| | | |
| | | resetObject() { |
| | | this.map = null; |
| | | this.provinceMeshList = null; |
| | | this.labelList = null; |
| | | this.textureLoader = null; |
| | | } |
| | | } |
| | | resetAllAnimation() { |
| | | this.map.children.forEach((item) => { |
| | | this.resetAnimation(item); |
| | | }); |
| | | } |
| | | |
| | | showLabel(province) { |
| | | this.labelList.forEach((item) => { |
| | | // if (item.name === province.properties) { |
| | | // item.label.element.style.visibility = 'visible'; |
| | | // } else { |
| | | // item.label.element.style.visibility = 'hidden'; |
| | | // } |
| | | }); |
| | | } |
| | | |
| | | enterAnimation() { |
| | | gsap.to(this.map.scale, { |
| | | z: 10, |
| | | duration: 0.6, |
| | | ease: "power1.out", |
| | | }); |
| | | } |
| | | |
| | | destroy() { |
| | | this.removeMouseEvent(); |
| | | this.disposeObject(); |
| | | this.removeObject(); |
| | | this.resetObject(); |
| | | } |
| | | |
| | | disposeObject() { |
| | | this.map.traverse((child) => { |
| | | if (child.material) { |
| | | // 可能存在材质为数组的情况 |
| | | if (child.material instanceof Array) { |
| | | child.material.forEach((item) => item.dispose()); |
| | | } else { |
| | | child.material.dispose(); |
| | | if (child.material.map) { |
| | | child.material.map.dispose(); |
| | | } |
| | | } |
| | | } |
| | | if (child.geometry) { |
| | | child.geometry.dispose(); |
| | | child.geometry.attributes = null; // 这些属性包括position, normal, uv等等 |
| | | } |
| | | child = null; |
| | | }); |
| | | this.topFaceMaterial.dispose(); |
| | | this.sideMaterial.dispose(); |
| | | } |
| | | |
| | | removeObject() { |
| | | this.scene.remove(this.map); |
| | | } |
| | | |
| | | resetObject() { |
| | | this.map = null; |
| | | this.provinceMeshList = null; |
| | | this.labelList = null; |
| | | this.textureLoader = null; |
| | | } |
| | | } |