obsidian-excalidraw-plugin/ea-scripts/Elbow connectors.md

/*

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.

This script converts the selected connectors to elbows.

See documentation for more details: https://zsviczian.github.io/obsidian-excalidraw-plugin/ExcalidrawScriptsEngine.html

*/
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) {
    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);