Enable scaling the selection via hotkeys

2026-06-05 14:38:05 +02:00 · 2020-09-21 14:02:41 -04:00
parent 28ea082892
commit 45decdb54c
8 changed files with 190 additions and 5 deletions
@@ -0,0 +1,24 @@
+import { utilGetAllNodes } from '../util';
+
+export function actionScale(ids, pivotLoc, scaleFactor, projection) {
+    return function(graph) {
+        return graph.update(function(graph) {
+            let point, radial;
+
+            utilGetAllNodes(ids, graph).forEach(function(node) {
+
+                point = projection(node.loc);
+                radial = [
+                    point[0] - pivotLoc[0],
+                    point[1] - pivotLoc[1]
+                ];
+                point = [
+                    pivotLoc[0] + (scaleFactor * radial[0]),
+                    pivotLoc[1] + (scaleFactor * radial[1])
+                ];
+
+                graph = graph.replace(node.move(projection.invert(point)));
+            });
+        });
+    };
+}