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Excalidraw/Scripts/Downloaded/Elbow connectors.md

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+/*
+
+![](https://raw.githubusercontent.com/zsviczian/obsidian-excalidraw-plugin/master/images/scripts-download-raw.jpg)
+
+Download this file and save to your Obsidian Vault including the first line, or open it in "Raw" and copy the entire contents to Obsidian.
+
+![](https://raw.githubusercontent.com/zsviczian/obsidian-excalidraw-plugin/master/images/elbow-connectors.png)
+
+This script converts the selected connectors to elbows.
+
+See documentation for more details:
+https://zsviczian.github.io/obsidian-excalidraw-plugin/ExcalidrawScriptsEngine.html
+
+```javascript
+*/
+const selectedCenterConnectPoints = await utils.suggester(
+    ['Yes', 'No'],
+    [true, false],
+    "Center connect points?"
+  );
+const centerConnectPoints = selectedCenterConnectPoints??false;
+
+const allElements = ea.getViewElements();
+const elements = ea.getViewSelectedElements();
+
+const lines = elements.filter((el)=>el.type==="arrow" || el.type==="line");
+
+for (const line of lines) {
+  if (line.points.length >= 3) {
+    if(centerConnectPoints) {
+      const startBindingEl = allElements.filter(el => el.id === (line.startBinding||{}).elementId)[0];
+	    const endBindingEl = allElements.filter(el => el.id === (line.endBinding||{}).elementId)[0];
+
+      if(startBindingEl) {
+        const startPointX = line.x +line.points[0][0];
+        if(startPointX >= startBindingEl.x && startPointX <= startBindingEl.x + startBindingEl.width) {
+          line.points[0][0] = startBindingEl.x + startBindingEl.width / 2 - line.x;
+        }
+
+        const startPointY = line.y +line.points[0][1];
+        if(startPointY >= startBindingEl.y && startPointY <= startBindingEl.y + startBindingEl.height) {
+          line.points[0][1] = startBindingEl.y + startBindingEl.height / 2 - line.y;
+        }
+      }
+
+      if(endBindingEl) {
+        const startPointX = line.x +line.points[line.points.length-1][0];
+        if(startPointX >= endBindingEl.x && startPointX <= endBindingEl.x + endBindingEl.width) {
+          line.points[line.points.length-1][0] = endBindingEl.x + endBindingEl.width / 2 - line.x;
+        }
+
+        const startPointY = line.y +line.points[line.points.length-1][1];
+        if(startPointY >= endBindingEl.y && startPointY <= endBindingEl.y + endBindingEl.height) {
+          line.points[line.points.length-1][1] = endBindingEl.y + endBindingEl.height / 2 - line.y;
+        }
+      }
+    }
+    
+    for (var i = 0; i < line.points.length - 2; i++) {
+      var p1;
+      var p3;
+      if (line.points[i][0] < line.points[i + 2][0]) {
+        p1 = line.points[i];
+        p3 = line.points[i+2];
+      } else {
+        p1 = line.points[i + 2];
+        p3 = line.points[i];
+      }
+      const p2 = line.points[i + 1];
+
+      if (p1[0] === p3[0]) {
+        continue;
+      }
+
+      const k = (p3[1] - p1[1]) / (p3[0] - p1[0]);
+      const b = p1[1] - k * p1[0];
+
+      y0 = k * p2[0] + b;
+      const up = p2[1] < y0;
+
+      if ((k > 0 && !up) || (k < 0 && up)) {
+        p2[0] = p1[0];
+        p2[1] = p3[1];
+      } else {
+        p2[0] = p3[0];
+        p2[1] = p1[1];
+      }
+    }
+  }
+}
+
+ea.copyViewElementsToEAforEditing(lines);
+await ea.addElementsToView(false,false);