fix: 天气显示

罗广辉

2025-04-21 2800fa4f32f3900509cb4d6eefaf2bfaf54efdd7

 src/utils/cesium/ImageTrailMaterial.js

@@ -1,85 +1,80 @@
import * as Cesium from 'cesium';
import * as Cesium from 'cesium'
/**
 * 定义Cesium材质对象
 */
class ImageTrailMaterial {
    constructor(options = {}) {
        this._definitionChanged = new Cesium.Event();
        this._color = void 0;
        this._colorSubscription = void 0;
        this._speed = void 0;
        this._speedSubscription = void 0;
        this._image = void 0;
        this._imageSubscription = void 0;
        this._repeat = void 0;
        this._repeatSubscription = void 0;
        this.color = options.color || Cesium.Color.fromBytes(0, 0, 255, 255);
        this.speed = options.speed || 1;
        this.image = options.image;
        this.repeat = new Cesium.Cartesian2(
            options.repeat?.x || 1,
            options.repeat?.y || 1,
        );
    }
   constructor(options = {}) {
      this._definitionChanged = new Cesium.Event()
      this._color = void 0
      this._colorSubscription = void 0
      this._speed = void 0
      this._speedSubscription = void 0
      this._image = void 0
      this._imageSubscription = void 0
      this._repeat = void 0
      this._repeatSubscription = void 0
      this.color = options.color || Cesium.Color.fromBytes(0, 0, 255, 255)
      this.speed = options.speed || 1
      this.image = options.image
      this.repeat = new Cesium.Cartesian2(options.repeat?.x || 1, options.repeat?.y || 1)
   }

    get isConstant() {
        return false;
    }
   get isConstant() {
      return false
   }

    get definitionChanged() {
        return this._definitionChanged;
    }
   get definitionChanged() {
      return this._definitionChanged
   }

    getType() {
        return Cesium.Material.ImageTrailMaterialType;
    }
   getType() {
      return Cesium.Material.ImageTrailMaterialType
   }

    getValue(time, result) {
        if (!result) {
            result = {};
        }
        result.color = Cesium.Property.getValueOrUndefined(this._color, time);
        result.image = Cesium.Property.getValueOrUndefined(this._image, time);
        result.repeat = Cesium.Property.getValueOrUndefined(this._repeat, time);
        result.speed = this._speed;
        return result;
    }
   getValue(time, result) {
      if (!result) {
         result = {}
      }
      result.color = Cesium.Property.getValueOrUndefined(this._color, time)
      result.image = Cesium.Property.getValueOrUndefined(this._image, time)
      result.repeat = Cesium.Property.getValueOrUndefined(this._repeat, time)
      result.speed = this._speed
      return result
   }

    equals(other) {
        return (
            this === other ||
            (other instanceof ImageTrailMaterial &&
                Cesium.Property.equals(this._color, other._color) &&
                Cesium.Property.equals(this._image, other._image) &&
                Cesium.Property.equals(this._repeat, other._repeat) &&
                Cesium.Property.equals(this._speed, other._speed))
        );
    }
   equals(other) {
      return (
         this === other ||
         (other instanceof ImageTrailMaterial &&
            Cesium.Property.equals(this._color, other._color) &&
            Cesium.Property.equals(this._image, other._image) &&
            Cesium.Property.equals(this._repeat, other._repeat) &&
            Cesium.Property.equals(this._speed, other._speed))
      )
   }
}

Object.defineProperties(ImageTrailMaterial.prototype, {
    color: Cesium.createPropertyDescriptor('color'),
    speed: Cesium.createPropertyDescriptor('speed'),
    image: Cesium.createPropertyDescriptor('image'),
    repeat: Cesium.createPropertyDescriptor('repeat'),
});
   color: Cesium.createPropertyDescriptor('color'),
   speed: Cesium.createPropertyDescriptor('speed'),
   image: Cesium.createPropertyDescriptor('image'),
   repeat: Cesium.createPropertyDescriptor('repeat'),
})
//材质类型
Cesium.Material.ImageTrailMaterialType = 'PolylineImageTrail';
Cesium.Material.ImageTrailMaterialType = 'PolylineImageTrail'
//添加材质到缓冲区中
Cesium.Material._materialCache.addMaterial(
    Cesium.Material.ImageTrailMaterialType,
    {
        fabric: {
            type: Cesium.Material.ImageTrailMaterialType,
            //uniform变量
            uniforms: {
                color: new Cesium.Color(1.0, 0.0, 0.0, 0.7),
                image: Cesium.Material.DefaultImageId,
                speed: 1,
                repeat: new Cesium.Cartesian2(1, 1),
            },
            //
            source: `
Cesium.Material._materialCache.addMaterial(Cesium.Material.ImageTrailMaterialType, {
   fabric: {
      type: Cesium.Material.ImageTrailMaterialType,
      //uniform变量
      uniforms: {
         color: new Cesium.Color(1.0, 0.0, 0.0, 0.7),
         image: Cesium.Material.DefaultImageId,
         speed: 1,
         repeat: new Cesium.Cartesian2(1, 1),
      },
      //
      source: `
                    uniform sampler2D image; 
                    uniform float speed;
                    uniform vec4 color;
@@ -89,19 +84,18 @@
                        czm_material material=czm_getDefaultMaterial(materialInput);
                        vec2 st=repeat * materialInput.st;
                        float time=fract(czm_frameNumber*speed/1000.);
                        vec4 colorImage=texture2D(image,vec2(fract(st.s-time),st.t));
                        vec4 colorImage=texture(image,vec2(fract(st.s-time),st.t)); // 修改 texture2D 为 texture
                        material.alpha = colorImage.a * color.a;
                        material.diffuse = (colorImage.rgb+color.rgb)/2.0;
                        return material;
                    }
                    `,
        },
        translucent: function () {
            return true;
        },
    },
);
export default ImageTrailMaterial;
   },
   translucent: function () {
      return true
   },
})
export default ImageTrailMaterial

//之前的航线材质编写
// source: `