Graphics Speed - Display List

[mbitzko]

I using the TCL Libraries to support cross-platform graphics display. On a printed circuit board, there can be thousands of line segments, creating an extensive display list. When zoomed in on the board and turning on the display for these objects, I wanted to ignore any of the objects outside of my zoom area which is the canvas window. Is there any way that when you create an object such as "$myWorksp create line x1_pix y1_pix x2_pix y2_pix", that I ignore any of the objects outside of the canvas window?

 

[Bong]

Items in a canvas have a state option. The state can be normal, disabled, or hidden. If you know which items (by tag or ID) you want to ignore, maybe disabled will do it for you?

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Bob Rashkin