topic Re: Is there a better way to detect when user picks a named view? in Fusion API and Scripts Forum

Is there a better way to detect when user picks a named view?

soswow — Fri, 11 Oct 2024 06:27:23 GMT

my current solution is to hook up to camera changed event and then on each event go through all named views and compare their camera parameters (eye, target, up_Vector) with the current view camera. It is very hacky and generates multiple events. All doable, but I thought maybe there was a more elegant way.

Re: Is there a better way to detect when user picks a named view?

kandennti — Fri, 11 Oct 2024 10:06:24 GMT

Hi @soswow -San.

Fusion360 executes commands for many operations.

The UserInterface.commandStarting event is fired when a command is executed.

https://help.autodesk.com/view/fusion360/ENU/?guid=GUID-EBB6C82A-A256-4AB7-9A86-0F7A9653A7E9

By using the UserInterface.activeCommand property, the ID of the command being executed can be known.

https://help.autodesk.com/view/fusion360/ENU/?guid=GUID-635C6C94-BA41-44D6-A97D-61BFA56C6688

If you click here, “RestoreCameraCommand” is executing.

Re: Is there a better way to detect when user picks a named view?

soswow — Fri, 11 Oct 2024 14:48:16 GMT

@kandennti -San,
Thank you! How do I know which of named views was clicked though? I've looked through

ApplicationCommandEventArgs and all it's tree and I can't seem to understand how do I get to which view was selected.

Re: Is there a better way to detect when user picks a named view?

soswow — Sat, 12 Oct 2024 00:36:34 GMT

It's ok. I've seen some of your other answers for similar question and it sounds like there is no way to get input information for command this way. I guess that just means I can't use named views as an input for my purposes.

I'd find another way.

Re: Is there a better way to detect when user picks a named view?

kandennti — Sat, 12 Oct 2024 15:41:30 GMT

@soswow -San.

After the command occurs, we created a sample that compares the current Camera with the Camera in the NamedView and determines that the one that matches is the one that was clicked.

#FusionAPI_python addin import traceback import adsk.core as core import adsk.fusion as fusion _app = core.Application.cast(None) _ui = core.UserInterface.cast(None) _handlers = [] _cmdInfo = { "id": "kantoku_DumpPickNamedViewTest", "name": "DumpPickNamedViewTest", "tooltip": "DumpPickNamedViewTest", "workSpace": "FusionSolidEnvironment", "panelId": "SolidScriptsAddinsPanel", } def run(context): ui = None try: global _app, _ui _app = core.Application.get() _ui = _app.userInterface cmdDefs: core.CommandDefinitions = _ui.commandDefinitions global _cmdInfo cmdDef: core.CommandDefinition = cmdDefs.itemById(_cmdInfo["id"]) if cmdDef: cmdDef.deleteMe() cmdDef = cmdDefs.addButtonDefinition( _cmdInfo["id"], _cmdInfo["name"], _cmdInfo["tooltip"]) global _handlers onCommandCreated = CommandCreatedHandler() cmdDef.commandCreated.add(onCommandCreated) _handlers.append(onCommandCreated) workSpace: core.Workspace = _ui.workspaces.itemById(_cmdInfo["workSpace"]) targetpanel :core.ToolbarPanel = workSpace.toolbarPanels.itemById(_cmdInfo["panelId"]) controls :core.ToolbarControls = targetpanel.controls cmdControl :core.ToolbarPanel = controls.addCommand(cmdDef) cmdControl.isVisible = True except: if _ui: _ui.messageBox("Failed:\n{}".format(traceback.format_exc())) class CommandCreatedHandler(core.CommandCreatedEventHandler): def __init__(self): super().__init__() def notify(self, args): try: global _app, _ui, _handlers cmd = core.Command.cast(args.command) des :fusion.Design = _app.activeDocument core.Camera.isEqual = isEqual # event onCommandTerminated = MyCommandTerminatedHandler() _ui.commandTerminated.add(onCommandTerminated) _handlers.append(onCommandTerminated) except: if _ui: _ui.messageBox("Failed:\n{}".format(traceback.format_exc())) class MyCommandTerminatedHandler(core.ApplicationCommandEventHandler): def __init__(self): super().__init__() def notify(self, args: core.ApplicationCommandEventArgs): if not _ui.activeCommand == "RestoreCameraCommand": return stateCam: core.Camera = _app.activeViewport.camera des: fusion.Design = _app.activeProduct views: core.NamedViews = des.namedViews view: core.NamedView = None for view in views: if stateCam.isEqual(view.camera): _app.log(f"Pick NamedView {view.name}!!") return def isEqual(self: core.Camera, cam: core.Camera) -> bool: if not self.cameraType == cam.cameraType: return False if not self.eye.isEqualTo(cam.eye): return False if not self.target.isEqualTo(cam.target): return False if not self.upVector.isEqualTo(cam.upVector): return False if abs(self.perspectiveAngle - cam.perspectiveAngle) > 0.001: return False return True def stop(context): try: global _cmdInfo workSpace: core.Workspace = _ui.workspaces.itemById(_cmdInfo["workSpace"]) panel: core.ToolbarPanel = workSpace.toolbarPanels.itemById(_cmdInfo["panelId"]) if panel: panel.controls.itemById(_cmdInfo["id"]).deleteMe() cmdDefs: core.CommandDefinitions = _ui.commandDefinitions cmdDef: core.CommandDefinition = cmdDefs.itemById(_cmdInfo["id"]) if cmdDef: cmdDef.deleteMe() except: print("Failed:\n{}".format(traceback.format_exc()))

Since Design.namedViews contains only the NamedViews that you have created yourself, if you need to detect the use of the default one, you should check the Camera data in advance.

Re: Is there a better way to detect when user picks a named view?

soswow — Mon, 14 Oct 2024 12:08:10 GMT

oh yes! Smart people think alike I suppose 😃 I've come up with the same thing. Actually, I found even nicer solution for my case.

(view in My Videos)

Basically, I decided not to worry about named views entirely. Through naming convention and way to detect when canvas is turned on and off, I can move the camera to the required frame, since I have all cameras information when user selects specific convas. And also I hide canvas when camera is moved away.