2D coordinates of curve endpoints in View3D

[Anonymous]

Hello everybody,

I want to obtain 2D coordinates at the viewport of curve endpoints within a View3D.

Therefore, I filter the visible elements with the FilteredElementCollector. Is there a way to directly obtain the 2D coordinates on the screen without doing perspective transformation of the element to the camera coordinates and project it to the image plane?

Greetings,

Chris

[Anonymous]

Hello everybody,

I want to obtain 2D coordinates at the viewport of curve endpoints within a View3D.

Therefore, I filter the visible elements with the FilteredElementCollector. Is there a way to directly obtain the 2D coordinates on the screen without doing perspective transformation of the element to the camera coordinates and project it to the image plane?

Greetings,

Chris

[jeremytammik]

Dear Chris,

Yes, there is.

You can use the UIView class and its two methods GetZoomCorners and GetWindowRectangle.

The former returns Revit XYZ coordinates, the latter a Rectangle on the screen.

I show how to make use of this in 

http://thebuildingcoder.typepad.com/blog/2012/10/uiview-windows-coordinates-referenceintersector-and...

Did you find any other interesting solution in the (long) meantime?

Cheers,

Jeremy

[jeremytammik]

Dear Chris,

Yes, there is.

You can use the UIView class and its two methods GetZoomCorners and GetWindowRectangle.

The former returns Revit XYZ coordinates, the latter a Rectangle on the screen.

I show how to make use of this in 

http://thebuildingcoder.typepad.com/blog/2012/10/uiview-windows-coordinates-referenceintersector-and...

Did you find any other interesting solution in the (long) meantime?

Cheers,

Jeremy