mirror of
https://github.com/jiawanlong/Cesium-Examples.git
synced 2025-07-07 08:47:29 +00:00
535 lines
16 KiB
JavaScript
535 lines
16 KiB
JavaScript
|
import { waveData } from './WaveData'
|
|||
|
|
|
|||
|
|
function RenderDynamicWave(viewer, Cesium) {
|
|||
|
|
this.particles = []
|
|||
|
|
this.particleCount = []
|
|||
|
|
this._field = undefined
|
|||
|
|
this._scale = 0.4 //1.0 //生成粒子的缩放因子
|
|||
|
|
this._imageMask = undefined
|
|||
|
|
this._particleNum = undefined
|
|||
|
|
this._mapCenter = undefined
|
|||
|
|
this._mapScale = undefined
|
|||
|
|
this._windowWidth = undefined
|
|||
|
|
this._windowheight = undefined
|
|||
|
|
this._bounds = {
|
|||
|
|
x: 0,
|
|||
|
|
y: 0,
|
|||
|
|
xMax: 0,
|
|||
|
|
yMax: 0,
|
|||
|
|
width: 0,
|
|||
|
|
height: 0
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
this._viewer = viewer
|
|||
|
|
this._cancel = false
|
|||
|
|
this._centerPnt = new Cesium.Cartographic()
|
|||
|
|
|
|||
|
|
this.densityScale = 1 //1 //密度比例系数
|
|||
|
|
this.velocityScale = 1 //1 //速度比例系数
|
|||
|
|
this.builder = null
|
|||
|
|
}
|
|||
|
|
RenderDynamicWave.prototype.setData = (renderObject, data) => {
|
|||
|
|
var bounds = data.params.bounds
|
|||
|
|
var columns = data.columns
|
|||
|
|
var maskImageData = data.pixels
|
|||
|
|
var mask = maskImageData
|
|||
|
|
const that = renderObject
|
|||
|
|
that._imageMask = mask
|
|||
|
|
that._field = waveData.createField(columns, bounds, false)
|
|||
|
|
|
|||
|
|
//lxl发现粒子在原位置时没生成，移到此位置
|
|||
|
|
that.particleCount = Math.round(
|
|||
|
|
data.params.clientHeight *
|
|||
|
|
data.params.clientWidth *
|
|||
|
|
waveData.PARTICLE_MULTIPLIER *
|
|||
|
|
that._scale
|
|||
|
|
)
|
|||
|
|
|
|||
|
|
if (that._field != null) {
|
|||
|
|
for (var i = 0; i < that.particleCount; i++) {
|
|||
|
|
that.particles.push(
|
|||
|
|
that._field.randomize({
|
|||
|
|
age: waveData.random(0, waveData.MAX_PARTICLE_AGE)
|
|||
|
|
})
|
|||
|
|
)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
var canvas, canvasOverLay
|
|||
|
|
if (document.getElementById('fullScreen')) {
|
|||
|
|
canvas = document.getElementById('fullScreen')
|
|||
|
|
canvasOverLay = document.getElementById('image-canvas')
|
|||
|
|
} else {
|
|||
|
|
canvasOverLay = document.createElement('CANVAS')
|
|||
|
|
document.body.appendChild(canvasOverLay)
|
|||
|
|
canvasOverLay.id = 'image-canvas'
|
|||
|
|
canvasOverLay.width = bounds.width
|
|||
|
|
canvasOverLay.height = bounds.height
|
|||
|
|
canvasOverLay.style.position = 'absolute'
|
|||
|
|
canvasOverLay.style.top = 0
|
|||
|
|
canvasOverLay.style.left = 0
|
|||
|
|
canvasOverLay.style.zIndex = 100
|
|||
|
|
canvasOverLay.style.pointerEvents = 'none'
|
|||
|
|
|
|||
|
|
canvas = document.createElement('CANVAS')
|
|||
|
|
document.body.appendChild(canvas)
|
|||
|
|
canvas.id = 'fullScreen'
|
|||
|
|
canvas.style.position = 'absolute'
|
|||
|
|
canvas.style.top = 0
|
|||
|
|
canvas.style.left = 0
|
|||
|
|
canvas.style.zIndex = 100
|
|||
|
|
canvas.style.pointerEvents = 'none'
|
|||
|
|
canvas.width = bounds.width
|
|||
|
|
canvas.height = bounds.height
|
|||
|
|
}
|
|||
|
|
var g = canvas.getContext('2d')
|
|||
|
|
g.clearRect(0, 0, canvas.width, canvas.height)
|
|||
|
|
|
|||
|
|
that._lineCanvas = canvas
|
|||
|
|
that._lineCanvas.style.display = 'block'
|
|||
|
|
that._g = g
|
|||
|
|
that._g.lineWidth = that.lineWidth || 7
|
|||
|
|
that._g.fillStyle = waveData.fadeFillStyle
|
|||
|
|
|
|||
|
|
var gOverlay = canvasOverLay.getContext('2d')
|
|||
|
|
gOverlay.clearRect(0, 0, canvasOverLay.width, canvasOverLay.height)
|
|||
|
|
|
|||
|
|
that._imageCanvas = canvasOverLay
|
|||
|
|
that._imageCanvas.style.display = 'block'
|
|||
|
|
that._imageG = gOverlay
|
|||
|
|
}
|
|||
|
|
RenderDynamicWave.prototype.dealData = (renderObject, params) => {
|
|||
|
|
if (!renderObject.builder) {
|
|||
|
|
let uvData = params.uvData
|
|||
|
|
let [header, uData, vData] = uvData
|
|||
|
|
renderObject.builder = new waveData.buildGrid({
|
|||
|
|
header,
|
|||
|
|
data: function (i) {
|
|||
|
|
return [uData[i], vData[i]]
|
|||
|
|
},
|
|||
|
|
interpolate: waveData.bilinearInterpolateVector
|
|||
|
|
})
|
|||
|
|
}
|
|||
|
|
if (params.velocityScale_o) waveData.velocityScale_o = params.velocityScale_o
|
|||
|
|
let result = waveData.reCreate(params, renderObject.builder, true)
|
|||
|
|
|
|||
|
|
let data = {
|
|||
|
|
params,
|
|||
|
|
columns: result.columns,
|
|||
|
|
pixels: result.mask.imageData
|
|||
|
|
}
|
|||
|
|
return data
|
|||
|
|
}
|
|||
|
|
RenderDynamicWave.prototype.parseData = function (uvData) {
|
|||
|
|
this.uvData = uvData
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
RenderDynamicWave.prototype.reCreate = function (renderObject) {
|
|||
|
|
var scene = this._viewer.scene
|
|||
|
|
var canvas = scene.canvas
|
|||
|
|
var camera = scene.camera
|
|||
|
|
|
|||
|
|
var width = renderObject._viewer.scene.canvas.clientWidth
|
|||
|
|
var height = renderObject._viewer.scene.canvas.clientHeight
|
|||
|
|
renderObject._windowWidth = width
|
|||
|
|
renderObject._windowheight = height
|
|||
|
|
renderObject._bounds.xMax = width
|
|||
|
|
renderObject._bounds.yMax = height
|
|||
|
|
renderObject._bounds.width = width
|
|||
|
|
renderObject._bounds.height = height
|
|||
|
|
if (renderObject._field != null) {
|
|||
|
|
renderObject._field.release()
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
var params = {}
|
|||
|
|
params.clientWidth = canvas.clientWidth
|
|||
|
|
params.clientHeight = canvas.clientHeight
|
|||
|
|
params.viewMatrix = camera.viewMatrix
|
|||
|
|
params.projectionMatrix = camera.frustum.projectionMatrix
|
|||
|
|
params.fovy = camera.frustum.fovy
|
|||
|
|
params.aspectRatio = camera.frustum.aspectRatio
|
|||
|
|
params.near = camera.frustum.near
|
|||
|
|
params.positionWC = camera.positionWC
|
|||
|
|
params.directionWC = camera.directionWC
|
|||
|
|
params.rightWC = camera.rightWC
|
|||
|
|
params.upWC = camera.upWC
|
|||
|
|
params.center = renderObject._centerPnt
|
|||
|
|
params.bounds = renderObject._bounds
|
|||
|
|
params.uvData = this.uvData
|
|||
|
|
params.velocityScale_o = renderObject.velocityScale_o
|
|||
|
|
|
|||
|
|
const data = renderObject.dealData(renderObject, params)
|
|||
|
|
renderObject.setData(renderObject, data)
|
|||
|
|
}
|
|||
|
|
RenderDynamicWave.prototype.getCurrentExtent = function () {
|
|||
|
|
let _self = this
|
|||
|
|
//获取当前三维地图范围
|
|||
|
|
var Rectangle = _self._viewer.camera.computeViewRectangle()
|
|||
|
|
//地理坐标（弧度）转经纬度坐标
|
|||
|
|
var extent = [
|
|||
|
|
(Rectangle.west / Math.PI) * 180,
|
|||
|
|
(Rectangle.south / Math.PI) * 180,
|
|||
|
|
(Rectangle.east / Math.PI) * 180,
|
|||
|
|
(Rectangle.north / Math.PI) * 180
|
|||
|
|
]
|
|||
|
|
return extent
|
|||
|
|
}
|
|||
|
|
RenderDynamicWave.prototype.deg2rad = function (deg) {
|
|||
|
|
return (deg / 180) * Math.PI
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 速度和强度
|
|||
|
|
RenderDynamicWave.prototype.getVelocityScaleByHeight = function (height) {
|
|||
|
|
let extent = this.getCurrentExtent()
|
|||
|
|
let mapBounds = {
|
|||
|
|
south: this.deg2rad(extent[1]),
|
|||
|
|
north: this.deg2rad(extent[3]),
|
|||
|
|
east: this.deg2rad(extent[2]),
|
|||
|
|
west: this.deg2rad(extent[0])
|
|||
|
|
}
|
|||
|
|
let mapArea =
|
|||
|
|
(mapBounds.south - mapBounds.north) * (mapBounds.west - mapBounds.east)
|
|||
|
|
let scale = 0.00015 * this.velocityScale
|
|||
|
|
if (height < 60000) scale = 0.00002 * this.velocityScale
|
|||
|
|
let velocityScale_o =
|
|||
|
|
scale *
|
|||
|
|
(Math.pow(window.devicePixelRatio, 1 / 3) || 1) *
|
|||
|
|
Math.pow(mapArea, 0.2)
|
|||
|
|
return velocityScale_o
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 密度
|
|||
|
|
RenderDynamicWave.prototype.getScaleByHeight = function (height) {
|
|||
|
|
// console.log('当前相机高度', height)
|
|||
|
|
// waveData.MAX_PARTICLE_AGE = 100;
|
|||
|
|
if (height < 630000) this.densityScale = 0.4
|
|||
|
|
let _scale = 1 * this.densityScale
|
|||
|
|
if (height > 14125162) {
|
|||
|
|
_scale = 1 * this.densityScale
|
|||
|
|
} else if (height > 14125162 * 0.8) {
|
|||
|
|
_scale = 0.7 * this.densityScale
|
|||
|
|
} else if (height > 14125162 * Math.pow(0.8, 2)) {
|
|||
|
|
_scale = 0.5 * this.densityScale
|
|||
|
|
} else if (height > 14125162 * Math.pow(0.5, 3)) {
|
|||
|
|
_scale = 0.4 * this.densityScale
|
|||
|
|
} else if (height > 14125162 * Math.pow(0.5, 4)) {
|
|||
|
|
_scale = 0.18 * this.densityScale
|
|||
|
|
} else if (height > 14125162 * Math.pow(0.5, 5)) {
|
|||
|
|
_scale = 0.14 * this.densityScale
|
|||
|
|
} else if (height > 14125162 * Math.pow(0.5, 6)) {
|
|||
|
|
_scale = 0.13 * this.densityScale
|
|||
|
|
} else if (height > 14125162 * Math.pow(0.5, 7)) {
|
|||
|
|
_scale = 0.08 * this.densityScale
|
|||
|
|
} else if (height > 14125162 * Math.pow(0.5, 8)) {
|
|||
|
|
_scale = 0.06 * this.densityScale
|
|||
|
|
} else if (height > 14125162 * Math.pow(0.5, 9)) {
|
|||
|
|
_scale = 0.04 * this.densityScale
|
|||
|
|
} else if (height > 14125162 * Math.pow(0.5, 10)) {
|
|||
|
|
_scale = 0.03 * this.densityScale
|
|||
|
|
} else if (height > 14125162 * Math.pow(0.5, 11)) {
|
|||
|
|
_scale = 0.02 * this.densityScale
|
|||
|
|
} else if (height > 14125162 * Math.pow(0.5, 12)) {
|
|||
|
|
_scale = 0.01 * this.densityScale
|
|||
|
|
} else if (height > 14125162 * Math.pow(0.5, 13)) {
|
|||
|
|
_scale = 0.005 * this.densityScale
|
|||
|
|
} else if (height > 14125162 * Math.pow(0.5, 14)) {
|
|||
|
|
_scale = 0.001 * this.densityScale
|
|||
|
|
} else {
|
|||
|
|
_scale = 0.0001 * this.densityScale
|
|||
|
|
}
|
|||
|
|
return _scale
|
|||
|
|
}
|
|||
|
|
RenderDynamicWave.prototype.Render = function () {
|
|||
|
|
var _this = this
|
|||
|
|
var scene = this._viewer.scene
|
|||
|
|
var renderObject = this
|
|||
|
|
renderObject.start = true
|
|||
|
|
renderObject.velocityScale_o = _this.getVelocityScaleByHeight(
|
|||
|
|
scene.camera.positionCartographic.height
|
|||
|
|
)
|
|||
|
|
renderObject._isRender = true
|
|||
|
|
this.reCreate(renderObject)
|
|||
|
|
_this._scale = _this.getScaleByHeight(
|
|||
|
|
scene.camera.positionCartographic.height
|
|||
|
|
)
|
|||
|
|
// var particleCount = Math.round(renderObject._windowheight * waveData.PARTICLE_MULTIPLIER);
|
|||
|
|
// var particles = [];
|
|||
|
|
// if(renderObject._field != null)
|
|||
|
|
// {
|
|||
|
|
// for (var i = 0; i < particleCount; i++) {
|
|||
|
|
// particles.push(renderObject._field.randomize({age:waveData.random(0, waveData.MAX_PARTICLE_AGE)}));
|
|||
|
|
// }
|
|||
|
|
// }
|
|||
|
|
scene.camera.moveEnd.addEventListener(function () {
|
|||
|
|
if (!renderObject.start) return
|
|||
|
|
//获取当前相机高度
|
|||
|
|
renderObject.start1 = true
|
|||
|
|
//获取当前相机高度
|
|||
|
|
var newCenter = scene.camera.positionCartographic
|
|||
|
|
if (newCenter != renderObject._centerPnt) {
|
|||
|
|
renderObject.velocityScale_o = renderObject.getVelocityScaleByHeight(
|
|||
|
|
newCenter.height
|
|||
|
|
)
|
|||
|
|
renderObject.reCreate(renderObject)
|
|||
|
|
renderObject._isRender = true
|
|||
|
|
_this._scale = renderObject.getScaleByHeight(newCenter.height)
|
|||
|
|
_this.particles = []
|
|||
|
|
|
|||
|
|
_this.particleCount = Math.round(
|
|||
|
|
renderObject._windowheight * waveData.PARTICLE_MULTIPLIER * _this._scale
|
|||
|
|
)
|
|||
|
|
_this.particleCount = Math.round(
|
|||
|
|
renderObject._windowheight *
|
|||
|
|
waveData.PARTICLE_MULTIPLIER *
|
|||
|
|
renderObject._windowWidth *
|
|||
|
|
_this._scale
|
|||
|
|
)
|
|||
|
|
if (renderObject._field != null) {
|
|||
|
|
for (var i = 0; i < _this.particleCount; i++) {
|
|||
|
|
if (!renderObject.start1) {
|
|||
|
|
i = _this.particleCount - 1
|
|||
|
|
|
|||
|
|
return
|
|||
|
|
}
|
|||
|
|
_this.particles.push(
|
|||
|
|
renderObject._field.randomize({
|
|||
|
|
age: waveData.random(0, waveData.MAX_PARTICLE_AGE)
|
|||
|
|
})
|
|||
|
|
)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
})
|
|||
|
|
|
|||
|
|
scene.camera.moveStart.addEventListener(function () {
|
|||
|
|
//获取当前相机高度
|
|||
|
|
var newCenter = scene.camera.positionCartographic
|
|||
|
|
|
|||
|
|
if (newCenter != renderObject._centerPnt) {
|
|||
|
|
if (renderObject._field != null) {
|
|||
|
|
renderObject._field.release()
|
|||
|
|
}
|
|||
|
|
renderObject.start1 = false
|
|||
|
|
renderObject._isRender = false
|
|||
|
|
if (renderObject._imageG) {
|
|||
|
|
renderObject._imageG.clearRect(
|
|||
|
|
0,
|
|||
|
|
0,
|
|||
|
|
renderObject._windowWidth,
|
|||
|
|
renderObject._windowheight
|
|||
|
|
)
|
|||
|
|
renderObject._g.clearRect(
|
|||
|
|
0,
|
|||
|
|
0,
|
|||
|
|
renderObject._windowWidth,
|
|||
|
|
renderObject._windowheight
|
|||
|
|
)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
})
|
|||
|
|
|
|||
|
|
// waveData.maxIntensity is the velocity at which particle color intensity is maximum
|
|||
|
|
var colorStyles = waveData.windIntensityColorScale(
|
|||
|
|
waveData.INTENSITY_SCALE_STEP,
|
|||
|
|
waveData.maxIntensity
|
|||
|
|
)
|
|||
|
|
var buckets = colorStyles.map(function () {
|
|||
|
|
return []
|
|||
|
|
})
|
|||
|
|
|
|||
|
|
function evolve() {
|
|||
|
|
buckets.forEach(function (bucket) {
|
|||
|
|
bucket.length = 0
|
|||
|
|
})
|
|||
|
|
_this.particles.forEach(function (particle) {
|
|||
|
|
if (particle.age > waveData.MAX_PARTICLE_AGE) {
|
|||
|
|
renderObject._field.randomize(particle).age = 0
|
|||
|
|
}
|
|||
|
|
var x = particle.x
|
|||
|
|
var y = particle.y
|
|||
|
|
var v = renderObject._field(x, y) // vector at current position
|
|||
|
|
var m = v[2]
|
|||
|
|
if (m === null) {
|
|||
|
|
particle.age = waveData.MAX_PARTICLE_AGE // particle has escaped the grid, never to return...
|
|||
|
|
} else {
|
|||
|
|
var xt = x + v[0] * waveData.WindScale
|
|||
|
|
var yt = y + v[1] * waveData.WindScale
|
|||
|
|
if (renderObject._field.isDefined(xt, yt)) {
|
|||
|
|
// Path from (x,y) to (xt,yt) is visible, so add this particle to the appropriate draw bucket.
|
|||
|
|
particle.xt = xt
|
|||
|
|
particle.yt = yt
|
|||
|
|
buckets[colorStyles.indexFor(m)].push(particle)
|
|||
|
|
} else {
|
|||
|
|
// Particle isn't visible, but it still moves through the field.
|
|||
|
|
particle.x = xt
|
|||
|
|
particle.y = yt
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
particle.age += 1
|
|||
|
|
})
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
function draw() {
|
|||
|
|
if (!renderObject.start) return
|
|||
|
|
|
|||
|
|
var g = renderObject._g
|
|||
|
|
if (g == null || renderObject._imageMask == null) {
|
|||
|
|
return
|
|||
|
|
}
|
|||
|
|
var bounds = renderObject._bounds
|
|||
|
|
|
|||
|
|
var prev = g.globalCompositeOperation
|
|||
|
|
g.globalCompositeOperation = 'destination-in'
|
|||
|
|
g.fillRect(bounds.x, bounds.y, bounds.width, bounds.height)
|
|||
|
|
//g.putImageData(renderObject._imageMask.imageData,0,0)
|
|||
|
|
g.globalCompositeOperation = prev
|
|||
|
|
|
|||
|
|
// Draw new particle trails.
|
|||
|
|
buckets.forEach(function (bucket, i) {
|
|||
|
|
if (bucket.length > 0) {
|
|||
|
|
g.beginPath()
|
|||
|
|
g.strokeStyle = colorStyles[i]
|
|||
|
|
bucket.forEach(function (particle) {
|
|||
|
|
g.moveTo(particle.x, particle.y)
|
|||
|
|
g.lineTo(particle.xt, particle.yt)
|
|||
|
|
particle.x = particle.xt
|
|||
|
|
particle.y = particle.yt
|
|||
|
|
})
|
|||
|
|
g.stroke()
|
|||
|
|
}
|
|||
|
|
})
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
;(function frame() {
|
|||
|
|
evolve()
|
|||
|
|
draw()
|
|||
|
|
|
|||
|
|
if (renderObject._isRender && renderObject._imageMask) {
|
|||
|
|
//renderObject._imageG.putImageData(renderObject._imageMask,0,0);
|
|||
|
|
}
|
|||
|
|
if (renderObject.start) {
|
|||
|
|
setTimeout(frame, 1 / 0.8)
|
|||
|
|
}
|
|||
|
|
})()
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
RenderDynamicWave.prototype.remove = function () {
|
|||
|
|
var renderObject = this
|
|||
|
|
if (
|
|||
|
|
renderObject._lineCanvas != undefined &&
|
|||
|
|
renderObject._lineCanvas.style != null
|
|||
|
|
) {
|
|||
|
|
renderObject._lineCanvas.style.display = 'none'
|
|||
|
|
}
|
|||
|
|
if (
|
|||
|
|
renderObject._imageCanvas != undefined &&
|
|||
|
|
renderObject._imageCanvas.style != null
|
|||
|
|
) {
|
|||
|
|
renderObject._imageCanvas.style.display = 'none'
|
|||
|
|
}
|
|||
|
|
renderObject.start = false
|
|||
|
|
this.particles = []
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
RenderDynamicWave.prototype.clone = function () {}
|
|||
|
|
RenderDynamicWave.prototype.update = function () {
|
|||
|
|
var RTOD = 180.0 / 3.1415926
|
|||
|
|
var canvas = document.getElementById('animation')
|
|||
|
|
var g = canvas.getContext('2d')
|
|||
|
|
// g.fillStyle = 'rgba(0, 0, 0, 0.97)'
|
|||
|
|
// g.lineWidth = 20
|
|||
|
|
g.fillStyle = 'rgba(211, 211, 211, 0.27)'
|
|||
|
|
g.lineWidth = 4
|
|||
|
|
|
|||
|
|
function draw() {
|
|||
|
|
// Fade existing particle trails.
|
|||
|
|
var prev = 'source-over'
|
|||
|
|
g.globalCompositeOperation = 'destination-in'
|
|||
|
|
g.fillRect(0, 0, 800, 600)
|
|||
|
|
g.globalCompositeOperation = prev
|
|||
|
|
g.beginPath()
|
|||
|
|
g.strokeStyle = 0x111111
|
|||
|
|
for (var i = 0; i < 100; i++) {
|
|||
|
|
var x = Math.floor(Math.random() * 800)
|
|||
|
|
var y = Math.floor(Math.random() * 600)
|
|||
|
|
|
|||
|
|
g.moveTo(x, y)
|
|||
|
|
g.lineTo(x + 5, y + 5)
|
|||
|
|
}
|
|||
|
|
g.stroke()
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
;(function frame() {
|
|||
|
|
try {
|
|||
|
|
draw()
|
|||
|
|
setTimeout(frame, 40)
|
|||
|
|
} catch (e) {}
|
|||
|
|
})()
|
|||
|
|
}
|
|||
|
|
RenderDynamicWave.prototype.updateO = function (options) {
|
|||
|
|
const renderObject = this
|
|||
|
|
var scene = renderObject._viewer.scene
|
|||
|
|
renderObject.lineWidth = options.lineWidth || renderObject.lineWidth
|
|||
|
|
renderObject.densityScale = options.densityScale || renderObject.densityScale
|
|||
|
|
renderObject.velocityScale =
|
|||
|
|
options.velocityScale / 10 || renderObject.velocityScale
|
|||
|
|
|
|||
|
|
if (renderObject._field != null) {
|
|||
|
|
renderObject._field.release()
|
|||
|
|
}
|
|||
|
|
renderObject.start1 = false
|
|||
|
|
renderObject._isRender = false
|
|||
|
|
if (renderObject._imageG) {
|
|||
|
|
renderObject._imageG.clearRect(
|
|||
|
|
0,
|
|||
|
|
0,
|
|||
|
|
renderObject._windowWidth,
|
|||
|
|
renderObject._windowheight
|
|||
|
|
)
|
|||
|
|
renderObject._g.clearRect(
|
|||
|
|
0,
|
|||
|
|
0,
|
|||
|
|
renderObject._windowWidth,
|
|||
|
|
renderObject._windowheight
|
|||
|
|
)
|
|||
|
|
}
|
|||
|
|
if (!renderObject.start) return
|
|||
|
|
//获取当前相机高度
|
|||
|
|
renderObject.start1 = true
|
|||
|
|
renderObject._isRender = true
|
|||
|
|
var newCenter = scene.camera.positionCartographic
|
|||
|
|
renderObject.velocityScale_o = renderObject.getVelocityScaleByHeight(
|
|||
|
|
newCenter.height
|
|||
|
|
)
|
|||
|
|
renderObject._scale = renderObject.getScaleByHeight(newCenter.height)
|
|||
|
|
renderObject.reCreate(renderObject)
|
|||
|
|
renderObject.particles = []
|
|||
|
|
|
|||
|
|
renderObject.particleCount = Math.round(
|
|||
|
|
renderObject._windowheight *
|
|||
|
|
waveData.PARTICLE_MULTIPLIER *
|
|||
|
|
renderObject._scale
|
|||
|
|
)
|
|||
|
|
renderObject.particleCount = Math.round(
|
|||
|
|
renderObject._windowheight *
|
|||
|
|
waveData.PARTICLE_MULTIPLIER *
|
|||
|
|
renderObject._windowWidth *
|
|||
|
|
renderObject._scale
|
|||
|
|
)
|
|||
|
|
if (renderObject._field != null) {
|
|||
|
|
for (var i = 0; i < renderObject.particleCount; i++) {
|
|||
|
|
if (!renderObject.start1) {
|
|||
|
|
i = renderObject.particleCount - 1
|
|||
|
|
|
|||
|
|
return
|
|||
|
|
}
|
|||
|
|
renderObject.particles.push(
|
|||
|
|
renderObject._field.randomize({
|
|||
|
|
age: waveData.random(0, waveData.MAX_PARTICLE_AGE)
|
|||
|
|
})
|
|||
|
|
)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
export default RenderDynamicWave
|