I tried looking at the svg side and I'm a little confused. How about, as a first step, modifying inkscape so that rulers and mouse pointer coordinate status use the origin that is indirectly defined by the viewbox? What about the viewbox units? Second step would be a gui to actually configure the viewbox within inkscape in a user friendly way. Finally, using those coordinates directly for new objects instead of inserting another transformation (I think this is what Krzysztof wrote in the previous post). (viewbox reference: http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute ) I played around with a hand coded svg, in case anyone else is interested I attached it.
This alone does not allow setting up an inverted y axis (to enable having y axis pointing up like now) but it looks like there is a ‘svg:transform’ attribute for that. Inverting the axis would also require things like flipping text, I think? (svg:transform reference: http://www.w3.org/TR/SVG/coords.html#SVGGlobalTransformAttribute ) Maybe it helps if we can agree on how coordinate systems should be defined in the svg and how inkscape should display units and rulers? I feel like I haven't really understood all issues. ** Attachment added: "viewbox with origin in the center of the page" https://bugs.launchpad.net/inkscape/+bug/170049/+attachment/3551689/+files/viewbox-test.svg -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to inkscape in Ubuntu. https://bugs.launchpad.net/bugs/170049 Title: Inverted ruler co-ordinate system Status in Inkscape: A Vector Drawing Tool: In Progress Status in “inkscape” package in Ubuntu: Triaged Bug description: The y-axis of the rulers' co-ordinate system is inverted (increasing upwards), and places the origin on the bottom left of the viewport. The SVG spec places the default origin on the top left of the viewport, and has the co-ordinate system increasing to the right and downwards. To manage notifications about this bug go to: https://bugs.launchpad.net/inkscape/+bug/170049/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
