!2543 优化:定位模块预览图的视角截取

src/Common/SerializeMaterial.ts

@@ -212,11 +212,16 @@ export function getPolylineSVG(en: Polyline)
 /**
  * 获取当前图纸的缩略图(预览图)
  */
-export function GetCurrentViewPreViewImage(restore = true, isBase64 = false): Blob | string
+export function GetCurrentViewPreViewImage(restore = true, isBase64 = false, zoomAll = false): Blob | string
 {
     //生成预览图
     app.Viewer.OnSize(400, 400);
+
+    //定位实体位置
+    if (zoomAll) app.Viewer.ZoomAll(false);
+
     app.Viewer.Render();
+
     let url = app.Viewer.Renderer.domElement.toDataURL(isBase64 ? "image/png" : "image/jpeg");
     if (restore)
     {
@@ -262,8 +267,7 @@ export async function GetEntitysLogo(ens: Entity[], isConceptual = false, dir =
     //绘制
     for (let e of ens)
         app.Viewer.Scene.add(e.DrawObject);
-    app.Viewer.ZoomAll(false);
+    let blob = GetCurrentViewPreViewImage(false, isBase64, true);
-    let blob = GetCurrentViewPreViewImage(false, isBase64);
     //还原视图
     [app.Viewer.Scene, sceneBak] = [sceneBak, app.Viewer.Scene];