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fsjodin
26 Posts |
 Posted - 05 Jan 2007 : 13:54:51
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Hi.
What is the difference in performance between the 3D and 2D tools? In other words, if I have a strip chart with several 100000 points in it, will actions such as zoom, scrolling, drawing etc. be significantly slower in the 3D toolkit?
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quinncurtis
1586 Posts |
Posted - 05 Jan 2007 : 14:25:21
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In general, the QCChart3D 3D charting software is many times slower than the QCChart2D 2D charting software. The quantifiable difference depends entirely on what you are plotting though.
If you attempted to plot a 100,000 point strip chart using the QCChart3D software, using a simple line plot, it would be almost as fast as the QCChart2D software, if the 3D chart were not rotated. We trap non-rotated charts as a special case and skip the computationaly intensive 3D calculations. Once you start viewing a chart using 3D rotations, the drawing speed of a simple line plot will decrease by a factor of 20-50, taking into account the 3D homogeneous transformation matrix, and 3D clipping functions that need to be applied to each data point. |
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Performance compared to 2D
