Linking as duplicate to bug #170347 in Inkscape: “ability to set coordinate origin”. Please add a comment here and revert the duplicate status if you don't agree and think these are different issues.
other related reports: Bug #170049 in Inkscape: “Inverted ruler co-ordinate system” Bug #171488 in Inkscape: “User-defined coordinate system” Bug #170674 in Inkscape: “Select a new reference point for object coordinates (basepoint)”
Linking as duplicate to bug #170347 in Inkscape: “ability to set coordinate origin”. Please add a comment here and revert the duplicate status if you don't agree and think these are different issues.
other related reports:
Bug #170049 in Inkscape: “Inverted ruler co-ordinate system”
Bug #171488 in Inkscape: “User-defined coordinate system”
Bug #170674 in Inkscape: “Select a new reference point for object coordinates (basepoint)”