I have two nodes
var rotatable : SCNNode!
var bluePeg : SCNNode!
...
rootnode.addchildNode(rotatable)
rotatable.addChildNode(bluePeg)
both add to the scene correctly, when panning the rotatable both nodes rotate correctly. The problem when panning the bluePeg with the following code in the viewController
if gestureRecognize.state == .changed {
if rotating {
angle = rotatePanel(xTranslation: Float(gestureRecognize.translation(in: gestureRecognize.view).x))
}
else {
let touchLocation = gestureRecognize.location(in: sceneView)//sceneView
let hitResults = sceneView.hitTest(touchLocation, options: [.searchMode: 1, .ignoreHiddenNodes: false])
for result in hitResults {
if result.node.name == "xzPlane" {
let newRotation = SCNVector3Make(0,-1.0 * (self.scene?.rotatable.eulerAngles.y)!, 0)
selectedNode.eulerAngles = newRotation //selectedNode is bluePeg Node
selectedNode.position = scene!.rotatable.convertVector((selectedNode.position), to: nil)//rotatable is the parent of selectedNode
os_log("rotatble Euler: %f, %f, %f",((scene?.rotatable.eulerAngles.x)!), ((scene?.rotatable.eulerAngles.y)!),((scene?.rotatable.eulerAngles.z)!))
os_log("selectedNode Euler: %f, %f, %f",(selectedNode.eulerAngles.x), (selectedNode.eulerAngles.y),(selectedNode.eulerAngles.z))
selectedNode.position.x = result.worldCoordinates.x
selectedNode.position.z = result.worldCoordinates.z
//selectedNode.position = selectedNode.convertPosition(selectedNode.position, to: nil)
return;
}
}
}
}
To clarify further, rotatable node rotates around the Y-axis with the children. To pan the bluePeg I tried removing the amount of rotation from the local coordinates and then pan using the world coordinates since the rotatable node position is always the zero vector.
What am I doing wrong here? Please help
I got it figured out after I took a break and slept :).
if gestureRecognize.state == .changed {
if rotating {
angle = rotatePanel(xTranslation: Float(gestureRecognize.translation(in: gestureRecognize.view).x))
}
else {
let touchLocation = gestureRecognize.location(in: sceneView)//sceneView
let hitResults = sceneView.hitTest(touchLocation, options: [.searchMode: 1, .ignoreHiddenNodes: false])
for result in hitResults {
if result.node.name == "xzPlane" {
selectedNode.position = result.node.convertVector(result.worldCoordinates, to: scene?.rotatable) //rotatble is the parent of bluePeg
os_log("rotatble Euler: %f, %f, %f",((scene?.rotatable.eulerAngles.x)!), ((scene?.rotatable.eulerAngles.y)!),((scene?.rotatable.eulerAngles.z)!))
os_log("selectedNode Euler: %f, %f, %f",(selectedNode.eulerAngles.x), (selectedNode.eulerAngles.y),(selectedNode.eulerAngles.z))
}
}
}
}
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