Hello, Stefan Menzel reported a bug (plplot-Bugs-1973336) regarding plotting a single pixel. This is a special case in plpoin (where the value of the argument code is -1).
The wingcc driver does not plot anything, whereas the GD driver does (at least for PNG). Given the implementation (as a line drawn from the point to itself) and the comment in the header that this may not work for smart enough drivers/devices, I wonder how we can solve this: - The wingcc driver has a separate function to draw a single pixel. We could change the driver to use that function to draw such a degenerate line. Then the effect would be limited to the wingcc driver, thus solving Stefan's immediate problem. Each device for which this is an issue would have to be adapted. - We can change the plpoin() function or better: the underlying line drawing function grline() to to invoke the correct drawing function if the line is degenerate. This is (a lot?) more work, as currently the devices are not required to have a separate pixel drawing function (there is no provision in the dispatch table for this). Should we go for the first or the second solution? Regards, Arjen ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
