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Enable Lock View ( Viewport ) to Camera in Python/Hscript


mikelafave

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https://www.sidefx.com/forum/topic/52186/     Oct. 19, 2017 4:14 P.M.     Is it not possible to enable the lock view to camera button via python/hscript?  

experimenting w/python on this in Apprentice 16.5.634 (_old_ PC) and running into issue(s)

https://www.sidefx.com/docs/houdini/hom/hou/GeometryViewport.html

... showed me several things which DO seem to work using the following syntax :

import hou, toolutils

myCam = hou.node('/obj/').createNode('cam', 'myCam')

hou.ui.paneTabOfType(hou.paneTabType.SceneViewer).curViewport().setCamera(myCam)

# hou.hscript('viewhome -s *.*.world.persp1')

hou.ui.paneTabOfType(hou.paneTabType.SceneViewer).curViewport().homeAll()

hou.ui.paneTabOfType(hou.paneTabType.SceneViewer).curViewport().saveViewToCamera(myCam)

# ... HOWEVER, when I try something similar, I just get an Error on :

>>> hou.ui.paneTabOfType(hou.paneTabType.SceneViewer).curViewport().lockCameraToView()
Traceback (most recent call last):
  File "<console>", line 1, in <module>
AttributeError: 'GeometryViewport' object has no attribute 'lockCameraToView'

# ... and I have Not found any way to do this using hscript either.  Anyone have advice on this?

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would that it were True

in Apprentice 16.5.634 , pasting that (and any other argument variation I can think of) into the Python Shell just gets me that same dead-end Error message :

>>> hou.ui.paneTabOfType(hou.paneTabType.SceneViewer).curViewport().lockCameraToView(True)
Traceback (most recent call last):
  File "<console>", line 1, in <module>
AttributeError: 'GeometryViewport' object has no attribute 'lockCameraToView'

>>> hou.ui.paneTabOfType(hou.paneTabType.SceneViewer).curViewport().isCameraLockedToView()
Traceback (most recent call last):
  File "<console>", line 1, in <module>
AttributeError: 'GeometryViewport' object has no attribute 'isCameraLockedToView'

? Q : Does this work for You now ... and, if it Does work for you, what version of Houdini does it now work in ?
 

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Hi,
I am using Houdini 18. I had this conversation with SideFX in April 2018. I don`t know, in which version the Lock method was implemented. But Houdini 16.5 was released earlier, November 2017. 

Sent: Wednesday, April 25, 2018 6:05 PM
Subject: Online Bug: python or hscript to toggle the lock [SESI #60637]
I've added you to an existing RFE requesting this functionality.
RFE #85473

 

You may try the following, in the Python Shell. The autocomplete will show you available methods in your version of Houdini, but lockCameraToView is probably not there:

image.png.7edb1632c0f8c95832b329b66f4dedbe.png 

 

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Yes, you are correct -- lockCameraToView is Not there in 16.5

And I could have noticed that myself, had I bothered to look at the _internal_  hou.GeometryViewport  HELP (instead of just online)

I will give it a try in 18 on my Son's (newly-built) PC when the opportunity presents itself

in the meantime I will probably try to make-do with  ".saveViewToCamera(myCam)" (which IS there in 16.5), After user adjustments

(though I'm surprised there was never a way to do it using hscript)

Thank You, Jiri, for your patience and help on this!

-mike

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