#4842 closed defect (wontfix)
GFX image rotation in Firefox/SVG
| Reported by: | guest | Owned by: | Eugene Lazutkin |
|---|---|---|---|
| Priority: | high | Milestone: | 1.0 |
| Component: | DojoX GFX | Version: | 0.9 |
| Keywords: | Cc: | ||
| Blocked By: | Blocking: |
Description
Email address: alan113696@…
I'm seeing a noticeable gap between two images when rotated as a group through various angles in Firefox. A much smaller gap exists in IE, which I consider OK since the two images are independently interpolated.
At angle=0, the images are exactly next to each other with no gap. At angle=180, there seems to be a full pixel gap. Issue with GFX or Firefox's implementation of SVG?
Attached is a modified version of dojoxgfx ests est_image2.html to show the issue.
Attachments (1)
Change History (3)
Changed 12 years ago by
| Attachment: | test_image2.html added |
|---|
comment:1 Changed 12 years ago by
| Milestone: | → 1.0 |
|---|---|
| Status: | new → assigned |
comment:2 Changed 12 years ago by
| Resolution: | → wontfix |
|---|---|
| Status: | assigned → closed |
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I checked the effect with Opera 9, Safari 3, IE7 with VML — they all work as expected: no gap for angles, which are multiples of 90, small sub-pixel gaps for other angles (multiples of 45). While it can be prevented in the graphics implementation (SVG, VML, Silverlight) I can understand this result. Firefox 2 shows the 1px gap like you described.
dojo.gfx doesn't position objects manually relying on transformation facilities provided by the underlying graphics engine. I suggest to file a bug with the Firefox project.
Meanwhile you can workaround it by yourself by allowing a little overlap between images (1-2px) and making sure that color are compatible on the border.