Dieter wrote:
Do you have a link where it is described that "SVG coordinates are upside down wrt cartesian" and the reasons why this was done?
It was probably done because this coordinate system (origin at top left, x+ right, y+ down) is standard for computer graphics work. Framebuffer memory is laid out this way, and most image formats (though not postscript) are, too. The reason for this, in turn, is probably that this was also the layout for text display, which is sensible in a left-to-right top-to-bottom language. So, ultimately, you can blame SVG's coordinate system on the Periclean Greeks.
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