Want new tool: Select through transparent face
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Hi:
I just voted your post up.
While I am very used to temporarily deleting a face to get at others or just scrolling right through and navigating inside a volume, or switching off layers, this would be a very nice plugin-- that is if one does not already exist and I have been asleep at the [scroll] wheel.
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Use the wireframe mode of styles
or
Use selection tool: (right to left) to forward selecting inside items (in styles transparent view)
but not (left to right) this selects everthing
or
select a edge or face then right click zoom extents and then scroll (in styles transparent view)
or
select a edge or face of inside item then left click 3 times (in styles transparent view)
Yea! this will work.
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If you don't like section-planes, then what's wrong with xray mode ?
It would be possible to make a convoluted observer that projected rays from the camera and they hit the back-side of a face that had a transparent material applied to its back [e.g. forming a 'wall' around a room] then 'hide it' until the view sees once aging its front-face , but this seems terribly intensive and complex.
Perhaps have it toggle so pressing a key does it on/off, rather than dynamically ??
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Could anyone help me to make this ruby "ghost" script?
How can I redirect the user-interface to the things behind an object as if it doesn't exist?thanks
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You'll need to detect if a face has a transparent material on its back-side, then if so, if that face is in front of the camera eye projected by direction to face.plane test and then perhaps it it's within 'range' [raytests ?]: then, if that face is the front or back-side towards the camera, and then if so temporarily hide that face by a temporarily reassignment to an 'off' layer.
Remembering to iterate the model.active_entities to consider all potential faces...You also need to keep a record (perhaps as a hash ? face=>layer etc etc) of all of the changed faces so when you are done you can revert them to their original the previous [visible] layer[s]...
Also faces inside groups presently convolution of transformation and normal etc...
You big issue is determining when it's done...
I think dynamically changing the model is too heavy.
How about a toggle toolbar button?
One click any faces in front of the camera meeting these specs are hidden, another click they reappear... -
Maybe we can change the X-ray transparency to 0%(no transparency)? That would do it, but how?
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@onidarbe said:
Maybe we can change the X-ray transparency to 0%(no transparency)? That would do it, but how?
WireFrame Mode
Sketchup.active_model.rendering_options["RenderMode"]= 0same as:
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The issue is not to see through [aka 'hide'] SOME faces, but also to be able to clearly see and then be able to select other faces that remain.
So my outline of a tool that selectively 'hides' some faces is feasible - provided that the back-face of those faces has a transparent material and so on...
A we placed non-visible section-plane is favorite........ -
I have just added 'select through transparent face' functionality to the X-ray view mode of my SUperPlanRuby plugin.
You can see the X-ray view mode at the start of the YouTube video “How to count your BIM doors and Windows” (
http://youtu.be/W0_Vhd1Er6M
)The attached image shows a bed Component Instance having just been selected through the transparent wall.
The selection is confirmed in the Entity Info window - but I have yet to master context processing via the right/3rd mouse button, since the onRButtonDownTool function seems to be inactive - even though onLButtonDown is working OK - anyone any ideas why?
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There is also an approach without making changes to entities:
One could also use a repeated raytest, and let it pass through all faces whose material has an alpha value lower than a threshold, or a texture whose filename endswith "png" (however, scripters can not determine which texture pixels are transparent). Then the last face would be added to the selection.
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