fix fatline material resolution not update when map resize (#628)

Author: deyihu

src/BaseObject.ts

@@ -449,6 +449,10 @@ class BaseObject extends maptalks.Eventable(Base) {
         return this;
     }
 
+    getPickObject3d() {
+        return this.pickObject3d;
+    }
+
 
     /**
      * more method support

src/FatLine.ts

@@ -72,6 +72,9 @@ class FatLine extends BaseObject {
 
     _setMaterialRes(layer, material) {
         const map = layer.getMap();
+        if (!map) {
+            return this;
+        }
         const size = map.getSize();
         const width = size.width,
             height = size.height;
@@ -136,5 +139,19 @@ class FatLine extends BaseObject {
         this._fire('workerload', { target: this });
     }
 
+    _animation() {
+        const layer = this.getLayer();
+        if (!layer) {
+            return this;
+        }
+        const object3d = this.getObject3d();
+        const pickObject3d = this.getPickObject3d();
+        [object3d, pickObject3d].forEach(object3d => {
+            if (object3d) {
+                this._setMaterialRes(layer, (object3d as any).material);
+            }
+        });
+    }
+
 }
 export default FatLine;

src/FatLines.ts

@@ -131,6 +131,9 @@ class FatLines extends MergedMixin(BaseObject) {
 
     _setMaterialRes(layer, material) {
         const map = layer.getMap();
+        if (!map) {
+            return this;
+        }
         const size = map.getSize();
         const width = size.width,
             height = size.height;
@@ -280,6 +283,20 @@ class FatLines extends MergedMixin(BaseObject) {
         }
         this._fire('workerload', { target: this });
     }
+
+    _animation() {
+        const layer = this.getLayer();
+        if (!layer) {
+            return this;
+        }
+        const object3d = this.getObject3d();
+        const pickObject3d = this.getPickObject3d();
+        [object3d, pickObject3d].forEach(object3d => {
+            if (object3d) {
+                this._setMaterialRes(layer, (object3d as any).material);
+            }
+        });
+    }
 }
 
 export default FatLines;