ViewBox is not handled correctly

[widi8835]

I use FileSvgReader to read SVGs and use the resulting Drawing in my software. In WpfDrawingSettings EnsureViewboxPosition and EnsureViewboxSie are set to true.
In v1.8.1 it works like expected. Since at least v1.8.3 the ViewBox isn't correctly handled anymore.

Tested with WpfSvgTestBox (*_expected.png faked with option EnsureViewBox=false):

1. ViewBox is not handled correctly
   
   ViewBox.svg:

   <?xml version="1.0" encoding="UTF-8" standalone="no"?>
   <!-- Created with Inkscape (http://www.inkscape.org/) -->
   
   <svg
      width="15.000001mm"
      height="15mm"
      version="1.1"
      id="svg3307"
      viewBox="7.5 7.5 41.500003 41.5"
      xmlns="http://www.w3.org/2000/svg"
      xmlns:svg="http://www.w3.org/2000/svg">
     <defs
        id="defs3304" />
     <g
        id="g21921"
        transform="matrix(1.8876249,0,0,1.8876249,20.026725,-10.180173)">
       <rect
          style="fill:#ff0000;stroke:none;stroke-width:3.68483;stroke-opacity:1"
          id="rect23997"
          width="21.9853"
          height="21.9853"
          x="-6.6362362"
          y="9.3663597" />
       <ellipse
          style="fill:#000000;stroke:#000000;stroke-width:0.244809"
          id="path3845"
          cx="10.034876"
          cy="15.062319"
          rx="5.1643801"
          ry="5.5422616" />
     </g>
     <circle
        style="fill:#000000;stroke:#000000;stroke-width:0.462107"
        id="path3843"
        cx="18.013865"
        cy="38.604069"
        r="10.223943" />
   </svg>

2. Translation is not handled correctly: it seems, that when WpfDrawingContext.UpdateBounds is call (with option 'EnsureViewboxSize=true'), translation is not considered
   
   Translation.svg:

   <?xml version="1.0" encoding="UTF-8" standalone="no"?>
   <!-- Created with Inkscape (http://www.inkscape.org/) -->
   
   <svg
      width="32mm"
      height="32mm"
      viewBox="0 0 32 31.999999"
      version="1.1"
      id="svg3307"
      xmlns="http://www.w3.org/2000/svg"
      xmlns:svg="http://www.w3.org/2000/svg">
     <defs
        id="defs3304" />
     <rect
        style="fill:#ffff00;stroke-width:0.33445"
        id="rect24983"
        width="32"
        height="32"
        x="0"
        y="0" />
     <g
        id="g3848"
        transform="translate(-47.721429,-75.213883)">
       <circle
          style="fill:#000000;stroke:#000000;stroke-width:0.334433"
          id="path3843"
          cx="70.732185"
          cy="98.952362"
          r="7.399189" />
     </g>
     <ellipse
        style="fill:#000000;stroke:#000000;stroke-width:0.334433"
        id="path3845"
        cx="8.2220945"
        cy="8.4335947"
        rx="7.0550404"
        ry="7.5712628" />
   </svg>

SVGs are created with Inkscape 1.2.2 (732a01da63, 2022-12-09)

By the way: Thanks for you work!

[paulushub]

I thought we have resolved this in #278

[widi8835]

Unfortunately not. I tested it with 1.8.4 too.

[paulushub]

Unfortunately not. I tested it with 1.8.4 too.

Maybe we just have to drop the WPF specific options, getting difficult finding a solution that will satisfy all cases.