Fix the issue that SVG bitmap generation does not works well when thumbnail pixel size set to zero, fix the logic to calculate the transform

SDWebImage / SDWebImageSVGCoder

A SVG coder plugin for SDWebImage, using Apple's built-in framework

MIT License

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Fix the issue that SVG bitmap generation does not works well when thumbnail pixel size set to zero, fix the logic to calculate the transform #25

Closed dreampiggy closed 4 years ago

dreampiggy commented 4 years ago

This fix #24

The problem related not only the code logic, but also the offset on Geometry. The previous code only works for some cases SVG which have a (0,0) view port. However, if the start point is not (0,0), the generated bitmap is wrong.

dreampiggy commented 4 years ago

Copy the code from https://github.com/SDWebImage/SDWebImagePDFCoder/blob/master/SDWebImagePDFCoder/Classes/SDImagePDFCoder.m#L188