Avg Position Null: Remove dynamic, move null to top of layers stack

Create Average Position Null.jsx

@@ -4,20 +4,12 @@
  *
  * Modifiers:
  * - Hold SHIFT to NOT parent the layers to the null
- * - Hold CTRL / CMD to add an expression that keeps the null centered between those layers
- * (Note: this disables parenting)
  *
  * @author Zack Lovatt <[email protected]>
- * @version 0.6.0
+ * @version 0.7.0
  */
 (function setToAvgPosition() {
  var keepLayersOrphans = ScriptUI.environment.keyboardState.shiftKey;
- var useDynamicPosition = false;
-
- if (ScriptUI.environment.keyboardState.ctrlKey || ScriptUI.environment.keyboardState.metaKey) {
- useDynamicPosition = true;
- keepLayersOrphans = true;
- }
 
  var comp = app.project.activeItem;
 
@@ -39,43 +31,22 @@
  avgNull.name = "Average Position Null";
  avgNull.guideLayer = true;
  avgNull.label = 14;
+ avgNull.moveBefore(layers[0]);
 
- var ii, il;
-
- if (useDynamicPosition) {
- var firstLayerIndex = layers[0].index;
- var lastLayerIndex = layers[layers.length - 1].index;
-
- avgNull.position.expression = [
- "var firstLayerIndex = " + firstLayerIndex + ";",
- "var lastLayerIndex = " + lastLayerIndex + ";",
- "",
- "var sum = [0, 0];",
- "var numLayers = lastLayerIndex - firstLayerIndex + 1;",
- "",
- "for (var ii = firstLayerIndex; ii <= lastLayerIndex; ii++) {",
- " var layer = thisComp.layer(ii);",
- " sum += layer.position;",
- "}",
- "",
- "sum / numLayers;"
- ].join("\n");
- } else {
- var sumX = 0;
- var sumY = 0;
+ var sumX = 0;
+ var sumY = 0;
 
-  for (ii = 0, il = layers.length; ii < il; ii++) {
-  var layer = layers[ii];
-  var layerPos = layer.position.valueAtTime(comp.time, false);
-  sumX += layerPos[0];
-  sumY += layerPos[1];
-  }
+ for (var ii = 0, il = layers.length; ii < il; ii++) {
+ var layer = layers[ii];
+ var layerPos = layer.position.valueAtTime(comp.time, false);
+ sumX += layerPos[0];
+ sumY += layerPos[1];
+ }
 
-  var avgX = sumX / layers.length;
-  var avgY = sumY / layers.length;
+ var avgX = sumX / layers.length;
+ var avgY = sumY / layers.length;
 
- avgNull.position.setValue([avgX, avgY]);
- }
+ avgNull.position.setValue([avgX, avgY]);
 
  if (!keepLayersOrphans) {
  for (ii = 0, il = layers.length; ii < il; ii++) {

readme.md

@@ -217,10 +217,9 @@ Counts all of the keyframes (including markers) in selected comps in project pan
 
 Creates a new null at the center of selected layers (or all comp layers, if none selected), and set this null as those layers' parent.
 
-| Modifier | Effect |
-| -------- | ------------------------------------------------------------------- |
-| SHIFT | Don't parent the layers to the null |
-| CTRL/CMD | Have the null's position be dynamically set to the center of layers |
+| Modifier | Effect |
+| -------- | ----------------------------------- |
+| SHIFT | Don't parent the layers to the null |
 
  </div>
  </div>