线贴图 速度bug修改

src/Obj/Base/PolylineObject/index.js

@@ -177,7 +177,8 @@ class PolylineObject extends Base {
   }
 
   set speed(v) {
-    this.options.speed = v
+    // this.options.speed = v
+    this.options.speed = v !== 0 ? Math.pow(v, -1) * 100 : 0
     this.entity.polyline.material = this.getMaterial(this.options.color, this.options.type, this.entity, this.options)
   }
   get dashSize() {
@@ -1321,6 +1322,7 @@ class PolylineObject extends Base {
       }
     })
     that.entity.polyline.oriWidth = that.options.width
+    that.judgeLine(that.entity, that.options)
     that.sdk._entityZIndex++
     PolylineObject.createLabel(that)
     // that.entity.polyline.positionsLngLat = positions
@@ -1355,7 +1357,102 @@ class PolylineObject extends Base {
 
     let scene = that.sdk.viewer.scene
   }
+  judgeLine(entity, newParam) {
+    if (!entity.polyline.oriRepeat) {
+      let param = {
+        color: newParam.color,
+        image: this.getSourceRootPath() + `/img/arrow/1.png`,
+        space: newParam.space,
+        speed: newParam.speed
+      }
 
+      param.speed = newParam.rotate ? param.speed : 0 - param.speed
+
+      const canvasEle = document.createElement('canvas');
+      const ctx = canvasEle.getContext('2d')
+      const myImg = new Image()
+      // myImg.src = that.getSourceRootPath() + '/img/arrow/1.png'
+      myImg.src = param.image
+      let that = this
+      myImg.onload = function () {
+        canvasEle.width = myImg.width * (param.space + 1)
+        canvasEle.height = myImg.height
+
+        let oriRepeat = that.getSceenLine(entity, param, canvasEle)
+        oriRepeat && (entity.polyline.oriRepeat = oriRepeat)
+
+
+        var positionProperty = entity.polyline.positions;
+        var positions = positionProperty.getValue(that.sdk.viewer.clock.currentTime);
+
+        if (!Cesium.defined(positions)) {
+          return new Cesium.Cartesian2(1.0, 1.0);
+          // return 1.0;
+        }
+
+        var distance = 0;
+        for (var i = 0; i < positions.length - 1; ++i) {
+          distance += Cesium.Cartesian3.distance(positions[i], positions[i + 1]);
+        }
+
+        var repeatX = distance / entity.polyline.width.getValue();
+        // 根据地图缩放程度调整repeatX
+        var cameraHeight = that.sdk.viewer.camera.positionCartographic.height;
+        var boundingSphere = new Cesium.BoundingSphere(
+          new Cesium.Cartesian3(-1000000, 0, 0), // 中心点坐标
+          500000 // 半径（距离）
+        );
+
+        // 获取绘图缓冲区的宽度和高度（通常是屏幕的分辨率）
+        var drawingBufferWidth = that.sdk.viewer.canvas.clientWidth;
+        var drawingBufferHeight = that.sdk.viewer.canvas.clientHeight;
+
+        // 使用 getPixelSize 方法获取包围球在屏幕上的像素大小
+        var groundResolution = that.sdk.viewer.scene.camera.getPixelSize(boundingSphere, drawingBufferWidth, drawingBufferHeight)
+        repeatX *= groundResolution / cameraHeight / (param.space * (canvasEle.width / canvasEle.height * 5) + 1);
+        // if (entity.polyline.material.oriRepeat) {
+        let speed = repeatX / entity.polyline.oriRepeat
+        entity.polyline.oriSpeed = speed
+        entity.polyline.oriRepeatX = repeatX
+      }
+
+
+
+
+    }
+  }
+  /**获取当前满屏横线速度 */
+  getSceenLine(entity, options, canvasEle) {
+    let point1 = new Cesium.Cartesian2(0, this.sdk.viewer.canvas.clientHeight)
+    let point2 = new Cesium.Cartesian2(this.sdk.viewer.canvas.clientWidth / 2, this.sdk.viewer.canvas.clientHeight)
+    var cartesian1 = this.sdk.viewer.scene.pickPosition(point1)
+    var cartesian2 = this.sdk.viewer.scene.pickPosition(point2)
+
+    var distance = Cesium.Cartesian3.distance(cartesian1, cartesian2);
+
+    var repeatX = distance / entity.polyline.width.getValue();
+    // 根据地图缩放程度调整repeatX
+    var cameraHeight = this.sdk.viewer.camera.positionCartographic.height;
+    var boundingSphere = new Cesium.BoundingSphere(
+      new Cesium.Cartesian3(-1000000, 0, 0), // 中心点坐标
+      500000 // 半径（距离）
+    );
+
+    // 获取绘图缓冲区的宽度和高度（通常是屏幕的分辨率）
+    var drawingBufferWidth = this.sdk.viewer.canvas.clientWidth;
+    var drawingBufferHeight = this.sdk.viewer.canvas.clientHeight;
+
+    // 使用 getPixelSize 方法获取包围球在屏幕上的像素大小
+    var groundResolution = this.sdk.viewer.scene.camera.getPixelSize(boundingSphere, drawingBufferWidth, drawingBufferHeight)
+    // repeatX *= groundResolution / cameraHeight / ((myImg.width / myImg.height * 5) + 1);
+    if (groundResolution > 700) {
+      repeatX *= groundResolution / cameraHeight / (options.space * (canvasEle.width / canvasEle.height * 5) + 1);
+    } else {
+      repeatX = undefined;
+    }
+
+    return repeatX
+  }
   /**
    * 编辑框
    * @param {boolean} state true打开，false关闭