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canvas's origin is not at 0,0 #3033

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candy4290 opened this issue Mar 9, 2023 · 2 comments · May be fixed by #3034
Open

canvas's origin is not at 0,0 #3033

candy4290 opened this issue Mar 9, 2023 · 2 comments · May be fixed by #3034

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@candy4290
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candy4290 commented Mar 9, 2023 •
edited

Bug reports:

the canvas returned by html2canvas, it's origin is not at 0,0. When i draw on it again, it's a trouble。
(https://jsfiddle.net/xiaoxiang930601/mny3dro6/5/)

Specifications:

  • html2canvas version tested with: 1.4.1
  • Browser & version: chrome110.0.5481.178
  • Operating system: windows10
@candy4290
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candy4290 commented Mar 9, 2023 •
edited

I checked the source code and found the reason

html2canvas/src/render/canvas/canvas-renderer.ts

Line 81 in 6020386

this.ctx.translate(-options.x, -options.y);

I have an idea, before return canvas, reset the origin. I'll give a pr to this

@candy4290 candy4290 linked a pull request Mar 9, 2023 that will close this issue
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@candy4290
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anybody can help me to do a preview?

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fix: canvas origin is not at 0,0 candy4290/html2canvas
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@candy4290