When penColor is using transparency, each stroke looks like a lot of dots overlapping each other

YanYuanFE / react-native-signature-canvas

:black_nib: React Native Signature Component based WebView Canvas for Android && IOS && expo

MIT License

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When penColor is using transparency, each stroke looks like a lot of dots overlapping each other #354

Open manuelescobedo opened 5 months ago

manuelescobedo commented 5 months ago

Recently I have downloaded this library, and due business requirement, I have to use penColor with alpha opacity.

dotSize: 1
penSize: 0, x (value)
penColor: (any, with any opacity)

And for each stroken, it looks like a lot of dots overlapping each other.

Is this expected?

(Image uses rgba(255,255,255,0.5)

IT could be great, that strokes looks right, even if the color is transparent, or please give a workaround for our issue.

Thanks in advance.

YanYuanFE commented 4 months ago

https://github.com/szimek/signature_pad Hello, this library uses signature_pad to draw signatures, I tried using penColor with transparency on signature_pad and the result is consistent with your description, so I think this is what is expected.