线样式（无同步间距调节）

src/Obj/Materail/FlowDashedLineFlowMaterialProperty.js

@@ -8,8 +8,12 @@ function FlowDashedLine() {
       this._color = undefined;
       this._speed = undefined;
       this._uType = undefined;
+      this._space = undefined;
+      this._dashSize = undefined;
       this.color = new Cesium.Color.fromCssColorString(options.color || "rgba(255,255,255,1)");
-      this.speed = options.speed || 0.25;//速度
+      this.speed = options.speed != undefined ? options.speed : 1.0;//速度
+      this.space = options.space || 0.01;//速度
+      this.dashSize = options.dashSize || 0.03;//速度
       this.uType = options.uType === undefined ? 1 : options.uType;//类型：0：普通流动线 1：虚化虚线
       this.lineBackAlpha = options.lineBackAlpha || 0.05;
     }
@@ -43,6 +47,18 @@ function FlowDashedLine() {
         10,
         result.speed
       );
+      result.space = Cesium.Property.getValueOrDefault(
+        this._space,
+        time,
+        10,
+        result.space
+      );
+      result.dashSize = Cesium.Property.getValueOrDefault(
+        this._dashSize,
+        time,
+        10,
+        result.dashSize
+      );
       result.uType = Cesium.Property.getValueOrDefault(
         this._uType,
         time,
@@ -69,6 +85,8 @@ function FlowDashedLine() {
   Object.defineProperties(FlowDashedLineFlowMaterialProperty.prototype, {
     color: Cesium.createPropertyDescriptor("color"),
     speed: Cesium.createPropertyDescriptor("speed"),
+    space: Cesium.createPropertyDescriptor("space"),
+    dashSize: Cesium.createPropertyDescriptor("dashSize"),
     uType: Cesium.createPropertyDescriptor("uType"),
     transparency: Cesium.createPropertyDescriptor("lineBackAlpha"),
   });
@@ -89,11 +107,13 @@ function FlowDashedLine() {
 
             // 计算流动虚线
             float dashSize = 0.03;
-            float gapSize = 0.01;
-            float progress = fract(czm_frameNumber * 0.01); // 时间控制流动
+            // float gapSize = 0.01;
+            // float dashSize = dashSize;
+            float gapSize = space;
+            float progress = fract(speed * czm_frameNumber * 0.01); // 时间控制流动
             float pattern = fract(st.x / (dashSize + gapSize) + progress);
             float dash1 = step(0.1, pattern) - step(0.9, pattern);
-            float dash2 = smoothstep(0.1, 0.3, pattern) - smoothstep(0.7, 0.9, pattern);
+            float dash2 = smoothstep(0.0, 0.4, pattern) - smoothstep(0.6, 1.0, pattern);
             float dash = (float(uType) != 1.0)?dash1:dash2;
             material.alpha = dash;
             material.diffuse = color.rgb;
@@ -108,7 +128,9 @@ function FlowDashedLine() {
         type: Cesium.Material.FlowDashedLineMaterialType,
         uniforms: {
           color: new Cesium.Color(1.0, 1.0, 1.0, 1.0),
-          speed: 0.1,
+          speed: 1,
+          space: 0.01,
+          dashSize: 0.03,
           uType: 1,
           lineBackAlpha: 0.05,
         },