fix #IOM0E

src/DatabaseServices/Dimension/2LineAngularDimension.ts

@@ -161,7 +161,7 @@ export class LineAngularDimension extends Entity
                         return NaN;
                     return angle(p.clone().sub(insP));
                 }).filter(a => !isNaN(a));
-            ans = ans.concat(ans.map(a => a + Math.PI));
+            ans = ans.concat(ans.map(a => (a + Math.PI) % (Math.PI * 2)));
             arraySortByNumber(ans);
             arrayRemoveDuplicateBySort(ans);