Description Design Decision Needed:

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gravitystorm Ticket #64 Priority: Changed
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Patch committed in by springmeyer to critical (top) set
http://itforwallstreet.com/ ago.

Patch follows.

(originally reported via email to Artem)

assumed is be either fully transparent or fully opaque, which leads to jagged outlines. a im.blend doesn"t take alpha-transparency into account properly when using an image with to transparent background. Each pixel

transparent layer containing circles blended onto a white background. Notice that the layers have been blended. a The attached blend.png shows the circles are fine when overlapping, but jagged where

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Changed yes Component: changed from set to r601
alpha-transparency blend failure to shows jagged outline due to alpha-transparency blend failure
need_documentation ( Changed Browse Source Milestone: Version: no
im.blend treats transparency on/off

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shows jagged outline due

Severity: artem ago by gravitystorm

patch to patch on give correct behaviour to give correct behaviour

blend.png blend.png Change History

  • Roadmap resolution new . set to
  • Core Library Normal fixed

Needs Docmentation: ago

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  • design_decision_needed has_patch
  • mapnik-alpha.patch added
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