View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000763 | MetaPost | bug | public | 2012-08-06 09:21 | 2012-12-10 12:13 |
| Reporter | Taco | Assigned To | Taco | ||
| Priority | normal | Severity | minor | Reproducibility | have not tried |
| Status | closed | Resolution | fixed | ||
| Product Version | 1.211 | ||||
| Summary | 0000763: Pen angles in SVG output | ||||
| Description | From Shriramana Sharma: I drew a simple triangle using an elliptical pen rotated by 60 degrees. The PS output is fine, but the SVG output apparently rotates the pen *clockwise* by 60 degrees because the top-right side of the triangle is the thinner stroke instead of the top left. I think it has something to do with applying transformation to the coordinate system instead of the object. I do not know SVG enough to know whether it is possible to assign per object transformations, or whether all per-object transformations are to be achieved by sort of pushing the current coordinate system transform state onto a stack, altering it as per requirements temporarily (with intended object rotations to be applied in reverse), drawing and then popping back the previous state from the stack. (Qt does all per-object transforms this way.) In this case, the SVG output system of MPost/MPLib should take care to reverse the sign of all angles before outputting. Perhaps since MPost was designed initially for PostScript, it follows the PS model of applying per-object transforms, but apparently the case with SVG is different and should be fixed. | ||||
| Tags | No tags attached. | ||||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2012-08-06 09:21 | Taco | New Issue | |
| 2012-08-06 09:21 | Taco | File Added: mp-svgout-problem.zip | |
| 2012-09-28 15:32 | Taco | Status | new => assigned |
| 2012-09-28 15:32 | Taco | Assigned To | => Taco |
| 2012-11-12 14:20 | Taco | Status | assigned => resolved |
| 2012-11-12 14:20 | Taco | Resolution | open => fixed |
| 2012-12-10 12:13 | Taco | Status | resolved => closed |
