Optimized drawing
Optimized drawing
- Subject: Optimized drawing
- From: Neil Earnshaw <email@hidden>
- Date: Fri, 29 Aug 2003 10:18:34 +0100
Can anyone give me some general tips for optimizing drawing in my app?
It has these general characteristics:
- Think CAD/CASE tool
- There is a single view in the drawing window
- The view renders rectangles that have a black border and contain text
- The rects may have their own color setting
- The view renders lines between rects
- The lines may have text drawn along side them
- Users can grab way points on the lines and drag them around (this
seems to be the most expensive operation)
- The view is rendering an underlying model/node/path structure
- Drawings may be quite large but there aren't that many rect's/paths
in them
Any guidance before I dive into optimization would be greatly
appreciated,
-Neil
Neil Earnshaw
Consultant Software Engineer
Object Software Engineers Ltd
email@hidden
Tel : 01747 854 852
Mbl : 07870 209 102
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