595 lines
18 KiB
JavaScript
595 lines
18 KiB
JavaScript
/**
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* 标注
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*/
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import Base from '../index'
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import MouseEvent from '../../../Event/index'
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import {
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getGroundCover
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} from '../../../Global/global'
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import { getFontFamily } from '../../Element/fontSelect'
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import {
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addCluster,
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remove_entity_from_cluster
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} from '../../../Global/cluster/cluster'
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class LabelObject extends Base {
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#updateBillboardImageTimeout
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#canvas = document.createElement('canvas')
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#canvas2 = document.createElement('canvas')
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constructor(sdk, options = {}, model) {
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super(sdk, options)
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this.model = model
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this.options.near = options.near || options.near === 0 ? options.near : 2000
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this.options.far = options.far || options.far === 0 ? options.far : 100000
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this.options.scaleByDistance = options.scaleByDistance || false
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this.options.show =
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options.show || options.show === false ? options.show : true
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this.options.text = options.text
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let textArray = this.options.text.split('\n')
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for (let i = 0; i < textArray.length; i++) {
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if (textArray[i].length > 40) {
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textArray[i] = textArray[i].slice(0, 40 - textArray[i].length)
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}
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}
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if (textArray.length > 10) {
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textArray.splice(10 - textArray.length)
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}
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this.options.text = textArray.join('\n')
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this.options.fontFamily = options.fontFamily || 0
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this.font = getFontFamily(this.options.fontFamily) || 'SimHei'
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this.options.fontSize = options.fontSize || 20
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this.options.lineWidth = options.lineWidth || 4
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this.options.lineColor = options.lineColor || '#00ffff80'
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this.options.color = options.color || '#ffffff'
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this.options.ground =
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options.ground || options.ground === false ? options.ground : true
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this.options.pixelOffset =
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options.pixelOffset || options.pixelOffset === 0
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? options.pixelOffset
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: 20
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this.options.backgroundColor = options.backgroundColor || [
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'#00ffff80',
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'#00ffff80'
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]
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this.event = new MouseEvent(this.sdk)
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this.entity
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this.create(this.options.position)
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this.picking = true
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}
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async create() {
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let _this = this
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if (!this.options.position[2] && this.options.position[2] !== 0) {
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this.options.position[2] = await this.getClampToHeight({
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lng: this.options.position[0],
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lat: this.options.position[1]
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})
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}
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this.originalOptions = copyObj(this.options)
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let id = this.options.id + '-label'
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let oldEntity = this.sdk.viewer.entities.getById(id)
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if(oldEntity) {
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this.sdk.viewer.entities.remove(oldEntity)
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}
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this.entity = this.sdk.viewer.entities.add({
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show: this.options.show,
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id: this.options.id + '-label',
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position: new Cesium.CallbackProperty(function () {
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if (_this.model) {
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// return Cesium.Cartesian3.fromDegrees(_this.options.position[0], _this.options.position[1], _this.model.originalBoundingSphereRadius*2*_this.model.customScale.z + _this.options.position[2])
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if (_this.model.isMove) {
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let scale = _this.model.customScale.x
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if (_this.model.customScale.y > scale) {
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scale = _this.model.customScale.y
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}
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if (_this.model.customScale.z > scale) {
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scale = _this.model.customScale.z
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}
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let point1 = Cesium.Cartesian3.fromDegrees(
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_this.options.position[0],
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_this.options.position[1],
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_this.options.position[2] +
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(_this.model.originalBoundingSphereRadius || 1) *
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2 *
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(scale || 0.01)
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)
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// 点2的位置，也使用经纬高表示
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let point2 = Cesium.Cartesian3.fromDegrees(
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_this.options.position[0],
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_this.options.position[1],
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_this.options.position[2] -
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(_this.model.originalBoundingSphereRadius || 1) *
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2 *
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(scale || 0.01)
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)
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let direction = Cesium.Cartesian3.subtract(
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point2,
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point1,
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new Cesium.Cartesian3()
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)
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let c = Cesium.Cartesian3.normalize(direction, direction)
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let ray = new Cesium.Ray(point1, c)
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let pickedObjects = _this.viewer.scene.drillPickFromRay(ray, 5)
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for (let i = 0; i < pickedObjects.length; i++) {
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if (
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pickedObjects[i].object &&
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pickedObjects[i].object.id &&
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pickedObjects[i].object.id === _this.model.id
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) {
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let pos84 = _this.cartesian3Towgs84(pickedObjects[i].position, _this.sdk.viewer)
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_this.options.position[0] = pos84.lng
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_this.options.position[1] = pos84.lat
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_this.options.position[2] = pos84.alt
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break
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}
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}
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}
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return Cesium.Cartesian3.fromDegrees(
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_this.options.position[0],
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_this.options.position[1],
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_this.options.position[2]
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)
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} else {
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return Cesium.Cartesian3.fromDegrees(..._this.options.position)
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}
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}, false),
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billboard: {
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image: this.getcanvas(),
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verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
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disableDepthTestDistance: new Cesium.CallbackProperty(function () {
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return getGroundCover() ? undefined : Number.POSITIVE_INFINITY
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}, false),
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scaleByDistance: this.options.scaleByDistance
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? new Cesium.NearFarScalar(this.options.near, 1, this.options.far, 0)
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: undefined,
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pixelOffsetScaleByDistance: this.options.scaleByDistance
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? new Cesium.NearFarScalar(this.options.near, 1, this.options.far, 0)
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: undefined
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}
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// label: {
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// show: this.options.show,
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// text: new Cesium.CallbackProperty(function () {
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// return _this.options.text
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// }, false),
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// font: this.options.fontSize + "px Helvetica",
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// fillColor: Cesium.Color.fromCssColorString(this.options.color),
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// pixelOffset: new Cesium.Cartesian2(0, -this.options.pixelOffset),
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// outlineColor: Cesium.Color.BLACK,
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// backgroundColor: Cesium.Color.fromCssColorString('#42c6ef'),
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// backgroundPadding: new Cesium.Cartesian2(12, 12),
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// showBackground: true,
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// verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
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// outlineWidth: 1,
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// style: Cesium.LabelStyle.FILL_AND_OUTLINE,
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// },
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})
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}
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get position() {
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return this.options.position
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}
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set position(v) {
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// console.log(v)
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this.options.position = v
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if (!v[2] && v[2] !== 0) {
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let objectsToExclude = [...this.sdk.viewer.entities.values]
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this.getClampToHeight({
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lng: v[0],
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lat: v[1]
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}, objectsToExclude).then(height => {
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v[2] = height
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this.options.position = [...v]
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})
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// let point1 = Cesium.Cartesian3.fromDegrees(this.options.position[0], this.options.position[1], 0);
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// let point2 = Cesium.Cartesian3.fromDegrees(this.options.position[0], this.options.position[1], 10000000);
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// let direction = Cesium.Cartesian3.subtract(point2, point1, new Cesium.Cartesian3());
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// let c = Cesium.Cartesian3.normalize(direction, direction);
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// let ray = new Cesium.Ray(point1, c);
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// let r = {}
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// let pickedObjects = this.sdk.viewer.scene.drillPickFromRay(ray);
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// for (let i = 0; i < pickedObjects.length; i++) {
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// if (pickedObjects[i].position) {
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// r = pickedObjects[i]
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// break
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// }
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// }
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// if (r && r.position) {
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// this.options.position[2] = this.cartesian3Towgs84(r.position, this.sdk.viewer).alt
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// }
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// else {
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// try {
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// let promise = Cesium.sampleTerrainMostDetailed(this.sdk.viewer.terrainProvider, [Cesium.Cartographic.fromDegrees(this.options.position[0], this.options.position[1])]);
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// promise.then((p) => {
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// this.options.position[2] = p[0].height
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// }).catch((e)=>{
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// })
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// } catch (error) {
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// }
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// }
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} else {
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this.options.position = [...v]
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}
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}
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get show() {
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return this.options.show
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}
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set show(v) {
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this.options.show = v
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if (!this.entity) {
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return
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}
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this.entity.show = v
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if (this.model) {
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// return Cesium.Cartesian3.fromDegrees(this.options.position[0], this.options.position[1], this.model.originalBoundingSphereRadius*2*this.model.customScale.z + this.options.position[2])
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let scale = this.model.customScale.x
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if (this.model.customScale.y > scale) {
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scale = this.model.customScale.y
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}
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if (this.model.customScale.z > scale) {
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scale = this.model.customScale.z
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}
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let point1 = Cesium.Cartesian3.fromDegrees(
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this.options.position[0],
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this.options.position[1],
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this.options.position[2] +
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(this.model.originalBoundingSphereRadius || 1) *
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2 *
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(scale || 0.01)
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)
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// 点2的位置，也使用经纬高表示
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let point2 = Cesium.Cartesian3.fromDegrees(
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this.options.position[0],
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this.options.position[1],
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this.options.position[2] -
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(this.model.originalBoundingSphereRadius || 1) *
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2 *
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(scale || 0.01)
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)
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let direction = Cesium.Cartesian3.subtract(
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point2,
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point1,
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new Cesium.Cartesian3()
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)
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let c = Cesium.Cartesian3.normalize(direction, direction)
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let ray = new Cesium.Ray(point1, c)
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let pickedObjects = this.viewer.scene.drillPickFromRay(ray, 5)
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for (let i = 0; i < pickedObjects.length; i++) {
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if (
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pickedObjects[i].object &&
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pickedObjects[i].object.id &&
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pickedObjects[i].object.id === this.model.id
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) {
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let pos84 = this.cartesian3Towgs84(pickedObjects[i].position, this.sdk.viewer)
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this.options.position[0] = pos84.lng
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this.options.position[1] = pos84.lat
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this.options.position[2] = pos84.alt
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break
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}
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}
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}
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else if (this.options.ground) {
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let objectsToExclude = [...this.sdk.viewer.entities.values]
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this.getClampToHeight({
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lng: this.options.position[0],
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lat: this.options.position[1]
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}, objectsToExclude).then(height => {
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this.options.position[2] = height
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})
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}
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}
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get text() {
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return this.options.text
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}
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set text(v) {
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this.options.text = v
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let textArray = this.options.text.split('\n')
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for (let i = 0; i < textArray.length; i++) {
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if (textArray[i].length > 40) {
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textArray[i] = textArray[i].slice(0, 40 - textArray[i].length)
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}
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}
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if (textArray.length > 10) {
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textArray.splice(10 - textArray.length)
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}
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this.options.text = textArray.join('\n')
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this.entity && (this.updateBillboardImage())
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}
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get color() {
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return this.options.color
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}
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set color(v) {
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this.options.color = v
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this.entity && (this.entity.billboard.image = this.getcanvas())
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}
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get scaleByDistance() {
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return this.options.scaleByDistance
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}
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set scaleByDistance(v) {
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this.options.scaleByDistance = v
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if (!this.entity) {
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return
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}
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if (this.options.scaleByDistance) {
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this.entity.billboard.scaleByDistance = new Cesium.NearFarScalar(
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this.options.near,
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1,
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this.options.far,
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0
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)
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this.entity.billboard.pixelOffsetScaleByDistance = new Cesium.NearFarScalar(
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this.options.near,
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1,
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this.options.far,
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0
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)
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} else {
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this.entity.billboard.scaleByDistance = undefined
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this.entity.billboard.pixelOffsetScaleByDistance = undefined
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}
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}
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get near() {
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return this.options.near
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}
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set near(v) {
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let near = v
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if (near > this.far) {
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near = this.far
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}
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this.options.near = near
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if (!this.entity) {
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return
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}
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if (this.options.scaleByDistance) {
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this.entity.billboard.scaleByDistance = new Cesium.NearFarScalar(
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this.options.near,
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1,
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this.options.far,
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0
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)
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this.entity.billboard.pixelOffsetScaleByDistance = new Cesium.NearFarScalar(
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this.options.near,
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1,
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this.options.far,
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0
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)
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} else {
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this.entity.billboard.scaleByDistance = undefined
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this.entity.billboard.pixelOffsetScaleByDistance = undefined
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}
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}
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get far() {
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return this.options.far
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}
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set far(v) {
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let far = v
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if (far < this.near) {
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far = this.near
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}
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this.options.far = far
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if (!this.entity) {
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return
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}
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if (this.options.scaleByDistance) {
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this.entity.billboard.scaleByDistance = new Cesium.NearFarScalar(
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this.options.near,
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1,
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this.options.far,
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0
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)
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this.entity.billboard.pixelOffsetScaleByDistance = new Cesium.NearFarScalar(
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this.options.near,
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1,
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this.options.far,
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0
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)
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} else {
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this.entity.billboard.scaleByDistance = undefined
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this.entity.billboard.pixelOffsetScaleByDistance = undefined
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}
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}
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get fontSize() {
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return this.options.fontSize
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}
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set fontSize(v) {
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this.options.fontSize = Number(v)
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if (!this.entity) {
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return
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}
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this.updateBillboardImage()
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}
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get fontFamily() {
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return this.options.fontFamily
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}
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set fontFamily(v) {
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this.options.fontFamily = v || 0
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this.font = getFontFamily(this.options.fontFamily) || 'SimHei'
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this.updateBillboardImage()
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}
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get lineWidth() {
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return this.options.lineWidth
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}
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set lineWidth(v) {
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this.options.lineWidth = ((Number(v) || Number(v) === 0) ? Number(v) : 4)
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if (!this.entity) {
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return
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}
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this.updateBillboardImage()
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}
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get pixelOffset() {
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return this.options.pixelOffset
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}
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set pixelOffset(v) {
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this.options.pixelOffset = Number(v)
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if (!this.entity) {
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return
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}
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this.updateBillboardImage()
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}
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updateBillboardImage() {
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this.entity.billboard.image = this.getcanvas()
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// clearTimeout(this.#updateBillboardImageTimeout)
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// this.#updateBillboardImageTimeout = setTimeout(() => {
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// clearTimeout(this.#updateBillboardImageTimeout)
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// this.entity.billboard.image = this.getcanvas()
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// }, 500)
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}
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get lineColor() {
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return this.options.pixelOffset
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}
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set lineColor(v) {
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this.options.lineColor = v || '#00ffff80'
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if (!this.entity) {
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return
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}
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this.entity.billboard.image = this.getcanvas()
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}
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get backgroundColor() {
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return this.options.backgroundColor
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}
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set backgroundColor(v) {
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this.options.backgroundColor = v
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if (!this.entity) {
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return
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}
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this.entity.billboard.image = this.getcanvas()
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}
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get ground() {
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return this.options.ground
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}
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set ground(v) {
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this.options.ground = v
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}
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// get backgroundColorStart() {
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// return this.options.backgroundColor[0]
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// }
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// set backgroundColorStart(v) {
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// this.options.backgroundColor[0] = v
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// this.entity.billboard.image = this.getcanvas()
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// }
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// get backgroundColorEnd() {
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// return this.options.backgroundColor[1]
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// }
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// set backgroundColorEnd(v) {
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// this.options.backgroundColor[1] = v
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// this.entity.billboard.image = this.getcanvas()
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// }
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getcanvas() {
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const ctx = this.#canvas.getContext('2d')
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ctx.clearRect(0, 0, this.#canvas.width, this.#canvas.height);
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ctx.font = this.options.fontSize + 'px ' + this.font
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let texts = this.options.text.split('\n')
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let canvasWidth = 0
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let canvasHeight = 0
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for (let i = 0; i < texts.length; i++) {
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const text = texts[i]
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const width = ctx.measureText(text).width
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if (width > canvasWidth) {
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canvasWidth = width
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}
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canvasHeight += this.options.fontSize
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}
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canvasHeight = canvasHeight + 20 + (texts.length - 1) * 5
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canvasWidth = canvasWidth + 30
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if (canvasWidth < this.options.lineWidth) {
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canvasWidth = this.options.lineWidth
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}
|
||
this.#canvas.width = canvasWidth
|
||
this.#canvas.height = this.options.pixelOffset + canvasHeight
|
||
const linearGradient = ctx.createLinearGradient(
|
||
0,
|
||
0,
|
||
canvasWidth,
|
||
canvasHeight + 20
|
||
)
|
||
linearGradient.addColorStop(0, this.options.backgroundColor[0])
|
||
linearGradient.addColorStop(1, this.options.backgroundColor[1])
|
||
ctx.fillStyle = linearGradient
|
||
ctx.fillRect(0, 0, canvasWidth, canvasHeight)
|
||
ctx.fillStyle = this.options.color
|
||
ctx.font = this.options.fontSize + 'px ' + this.font
|
||
let maxWidth = 0
|
||
for (let i = 0; i < texts.length; i++) {
|
||
let width = ctx.measureText(texts[i]).width
|
||
if (maxWidth < width) {
|
||
maxWidth = width
|
||
}
|
||
}
|
||
maxWidth = maxWidth + 30
|
||
let centerDistance = (canvasWidth - maxWidth) / 2
|
||
for (let i = 0; i < texts.length; i++) {
|
||
const text = texts[i]
|
||
if (this.options.fontSize < 10) {
|
||
ctx.fillText(text, 15 + centerDistance, this.options.fontSize * (i + 1) + 10 + i * 5)
|
||
} else {
|
||
ctx.fillText(
|
||
text,
|
||
15 + centerDistance,
|
||
this.options.fontSize * (i + 1) +
|
||
(10 * 10) / this.options.fontSize +
|
||
i * 5
|
||
)
|
||
}
|
||
}
|
||
|
||
// 虚线
|
||
ctx.strokeStyle = this.options.lineColor
|
||
ctx.setLineDash([4, 4]) //设置虚线长度4，间隔为4
|
||
ctx.lineWidth = this.options.lineWidth
|
||
ctx.beginPath()
|
||
ctx.moveTo(canvasWidth / 2, canvasHeight)
|
||
ctx.lineTo(canvasWidth / 2, canvasHeight + this.options.pixelOffset)
|
||
ctx.stroke()
|
||
ctx.closePath()
|
||
|
||
const ctx2 = this.#canvas2.getContext('2d')
|
||
this.#canvas2.width = this.#canvas.width + 10
|
||
this.#canvas2.height = this.#canvas.height + 10
|
||
ctx2.drawImage(this.#canvas, 5, 5);
|
||
|
||
// const imageData = ctx.getImageData(0, 0, canvas.width, canvas.height);
|
||
// ctx.putImageData(imageData, 40, 40);
|
||
return this.#canvas2.toDataURL("image/png")
|
||
}
|
||
|
||
remove() {
|
||
this.sdk.viewer.entities.remove(this.entity)
|
||
this.entity = null
|
||
}
|
||
|
||
flicker() { }
|
||
}
|
||
|
||
export default LabelObject
|
||
|
||
const copyObj = (obj = {}) => {
|
||
//变量先置空
|
||
let newobj = null
|
||
|
||
//判断是否需要继续进行递归
|
||
if (typeof obj == 'object' && obj !== null) {
|
||
newobj = obj instanceof Array ? [] : {} //进行下一层递归克隆
|
||
for (var i in obj) {
|
||
newobj[i] = copyObj(obj[i])
|
||
} //如果不是对象直接赋值
|
||
} else newobj = obj
|
||
return newobj
|
||
}
|