maptalks / maptalks/maptalks.js
ImageLayer的半透明被设置了两次
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Description
maptalks's version and what browser you use?
maptalks@1.0.0-rc.37
Issue description
ImageLayer设置opacity时，会出现叠加，比如设置 opacity: 0.5，实际生效的是 0.5*0.5=0.25
Please provide a reproduction URL (on any jsfiddle like site)
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the linked CodePen reproduction and trace how ImageLayer handles opacity in maptalks@1.0.0-rc.37. Compare the layer opacity with the image or renderer opacity, then verify that setting opacity to 0.5 produces an effective opacity of 0.5 rather than 0.25.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- frontend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100