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I see. If you can keep the chart size unchanged then it is certainly a
good idea to stretch the image to the requested size immediately after
loading and use a simple "Draw" of the obtained image while charting. If
you know the range of your data in advance it may also help to freeze
the chart extent to avoid unnecessary repaints when data arrive. And you
could also enclose the AddXY calls by calls to Begin/EndUpdate of the
ChartSource. Avoiding unnecessary repainting can have a dramatic effect
on speed.
- [Lazarus] TAChart with transparent background Roberto P.
- [Lazarus] TAChart with transparent background Werner Pamler
- [Lazarus] TAChart with transparent background Werner Pamler
- [Lazarus] TAChart with transparent background Werner Pamler
