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STR #1976

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STR #1976

Application:FLTK Library
Status:5 - New
Priority:1 - Request for Enhancement, e.g. asking for a feature
Scope:3 - Applies to all machines and operating systems
Summary:I would like a "inverse" transform() (device to user coordinates)
Created By:craigd
Assigned To:Unassigned
Fix Version:Unassigned
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Name/Time/Date Text  
#1 craigd
12:15 May 29, 2008
transform(x,y) converts from user coordinates to device coordinates but there isn't a function to go the other direction: device to user coordinates. This is a useful function for CAD type applications.
Rational: I have a model that I render. As the cursor is moved around the rendered model, the user coordinates are displayed. Currently, it seems I must do the calculation manually (from quick look through path.cxx). Even if there was a invert_and_return_current_transform_matrix(), I'm not able call transform() with that matrix without some gyrations with push/pop_matrix. I'm looking for something trival.

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