search

praeclarum / NGraphics

NGraphics is a cross platform library for rendering vector graphics on .NET. It provides a unified API for both immediate and retained mode graphics using high quality native renderers.
MIT License
705 stars 133 forks source link

Incorrect processing of SVG attribute 'fill-opacity' #76

Open franzdevel opened 7 years ago

franzdevel commented 7 years ago

The following SVG is not processed correctly by the SvgReader:

<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 48 48">
  <path d="M6 18v12h8l10 10V8L14 18H6zm27 6c0-3.53-2.04-6.58-5-8.05v16.11c2.96-1.48 5-4.53 5-8.06zM28 6.46v4.13c5.78 1.72 10 7.07 10 13.41s-4.22 11.69-10 13.41v4.13c8.01-1.82 14-8.97 14-17.54S36.01 8.28 28 6.46z" fill-opacity="0.54"/>
</svg>

The 'fill-opacity' attribute in the above example is ignored.

On the other hand, the combination of 'fill' and 'fill-opacity' attributes will be correctly processed, as in the following example:

<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 48 48">
  <path d="M6 18v12h8l10 10V8L14 18H6zm27 6c0-3.53-2.04-6.58-5-8.05v16.11c2.96-1.48 5-4.53 5-8.06zM28 6.46v4.13c5.78 1.72 10 7.07 10 13.41s-4.22 11.69-10 13.41v4.13c8.01-1.82 14-8.97 14-17.54S36.01 8.28 28 6.46z" fill="#000000" fill-opacity="0.54"/>
</svg>

The 'fill-opacity' attribute should be processed in both cases.