VoxelPrimitive

new Cesium.VoxelPrimitive(url, options)
MapGIS/Scene/VoxelPrimitive.js 42

栅格体元数据图元
Name Type Description
url String
options Object
Name Type Default Description
show Boolean true optional 是否显示
minThreshold Number 0 optional 属性过滤最小阈值
maxThreshold Number 1 optional 属性过滤最大阈值
opacity Number 1 optional 不透明度
steps Number 200 optional 采样步长
heightScale Number 1 optional 高度缩放
colorScheme HTMLCanvasElement optional 配色方案
loaded function optional 加载完成回调函数
Example:
var volxel = new Cesium.VoxelPrimitive(url, {
    heightScale : 100,
    loaded : function() {}
});

Members

heightScale : Number
MapGIS/Scene/VoxelPrimitive.js 165

高度缩放

opacity : Number
MapGIS/Scene/VoxelPrimitive.js 137

不透明度

show : Boolean
MapGIS/Scene/VoxelPrimitive.js 179

是否显示

steps : Number
MapGIS/Scene/VoxelPrimitive.js 151

步长

Methods

queryPropertyValue(screenCoordinates) → Object
MapGIS/Scene/VoxelPrimitive.js 263

属性值查询
Name Type Description
screenCoordinates Cartesian2
Returns:

setColorScheme(canvas2d)
MapGIS/Scene/VoxelPrimitive.js 208

设置配色方案
Name Type Description
canvas2d HTMLCanvasElement
Example:
var canvas2d = document.createElement('canvas');
canvas2d.width = 100;
canvas2d.height = 1;
var ctx = canvas2d.getContext("2d");
var gradient = ctx.createLinearGradient(0, 0, canvas2d.width, 0);
gradient.addColorStop(0, "rgba(254, 35, 10, 1)");
gradient.addColorStop(0.33, "rgba(242, 254, 30, 1)");
gradient.addColorStop(0.67, "rgba(22, 253, 255, 1)");
gradient.addColorStop(1, "rgba(92, 9, 252, 1)");
ctx.fillStyle = gradient;
ctx.fillRect(0, 0, canvas2d.width, canvas2d.height);
volxel.setColorScheme(canvas2d);

setFilterRange(minValue, maxValue)
MapGIS/Scene/VoxelPrimitive.js 222

设置过滤范围
Name Type Description
minValue Number 最小值
maxValue Number optional 最大值

setPlaybackFrame(frameIndex)
MapGIS/Scene/VoxelPrimitive.js 242

设置播放帧
Name Type Description
frameIndex Number 数据的帧索引