[css-writing-modes] Confused about 'writing-mode' with 'direction'

[RazrFalcon]

Moved from w3c/svgwg#618

https://www.w3.org/TR/SVG/text.html#WritingModeProperty
https://www.w3.org/TR/SVG/text.html#DirectionProperty

Afaiu, writing-mode was completely changed in SVG 2, but I think that the problem should persist. I'm not sure if there are any SVG 2 ready applications, so I cannot test this. That's why the example below is SVG 1.1 based.

<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg" font-family="Arial" font-size="64">
    <path id="crosshair" d="M 20 100 L 180 100 M 100 20 L 100 180" stroke="gray" stroke-width="0.5"/>
    <text id="text1" x="100" y="150" writing-mode="tb" direction="rtl">Text</text>
    <rect id="frame" x="1" y="1" width="198" height="198" fill="none" stroke="black"/>
</svg>

As you can see, the results are pretty different. Which one is the correct one and why?

PS: is the SVG 1.1, the writing-mode property could have 6 different values. But according to the SVG 2 spec, there are actually only two of them: left-to-right and top-to-bottom. So in the SVG 1.1 I can treat lr-tb, rl and rl-tb as lr and tb-rl as tb and it should not technically affect anything?

[fantasai]

Thanks very much for all your efforts in reporting these issues @RazrFalcon. I'm afraid @svgeesus was a bit too quick to dismiss this issue, it's not about CSS Writing Modes since the text is rendered correctly--it's just the placement in coordinate space that's varying, and it's up to SVG to define that , not CSS. I'm going to mark this as OutOfScope, but I'll leave it open until it's been reopened in the SVGWG repository.

Your testcases are very helpful, btw: super clear and easy to understand.