Drawing Single Pixel Lines
Christos Sotiriou <[email protected]>
| Newsgroups | gmane.comp.lib.cairo |
|---|---|
| Message-ID | <CANp+zOFtwpKs_d_BYoeE0vA4Q9jMBPkA1U8oCjd1AbmXSqxVPg@mail.gmail.com> |
Hello, for an application using GTK and Cairo for its back-end I am drawing to *integer* *coordinates* (cairo scale is 1) for efficiency using simple cairo function calls. I would like to draw single pixel lines. In Cairo version cairo-1.14.0-2.fc20.x86_64, using a line width of *1 (or 1.0)* works fine. In Cairo version 1.8.8-2.1.48 (Suse) a line width of 1 does not draw the line at all, or draws halfway. When I change the line width to *2 (or 2.0)*, the line is drawn. I know that in the FAQ a line width of 2.0 is recommended : http://cairographics.org/FAQ/#sharp_lines. Is this the only solution, i.e. to change the line width to 2.0? When I do that the lines appear slightly thicker that I would like! Thank you for your help, Christos. -- -------------------------------------------------------------------------- Christos P. Sotiriou email: [email protected] Cell (GR): +30 697 8984 222 Cell (US): +1 858 247 9436 -- cairo mailing list [email protected] http://lists.cairographics.org/mailman/listinfo/cairo