On Thu, Jun 3, 2010 at 04:45, Alexander Klenin <[email protected]> wrote: > On Tue, Jun 1, 2010 at 22:53, Rick <[email protected]> wrote: >> I was able to use axis transformations/linear offset to stack several series >> vertically as we discussed. >> I discovered an issue with area series and linear transformation, however. >> I expected area series to shade the area between the horizontal axis and >> graph. Instead, it appears to >> fill the area between the bottom of the chart and the graph. It doesn't >> respect the linear transformation. >> Try making an area series and then shifting it up 10. It'll draw all the >> way down to -10 on its axis. > > Well, that's kind-of as-designed, I think. At least it was that way > before I started maintaining TAChart, and I suspect it was done intentionally. > But you are right that drawing to zero level deserves at least an option. > There are some tricky corner cases -- e.g. drawing series with both positive > and negative values, but it is doable.
Implemented in r27024, r27024. >> Also, I think somebody asked about this before but it would be nice if there >> was an area series that would >> draw an outline but not the vertical lines at each data point. That looks >> like it'll be a pain in the butt to >> implement, but if you ever find yourself needing to kill a little time ;) >> It would make for prettier stairstep >> graphs that don't have the area shaded, IMHO. Implemented in r27022 -- AreaContourPen and AreaLinesPen are now separated. -- Alexander S. Klenin -- _______________________________________________ Lazarus mailing list [email protected] http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
