[cairo] Coordinate from device to user space without a context
donn.ingle at gmail.com
Thu Nov 7 09:29:57 CET 2013
Follow up summary.
So far it seems to me, from my recent experience, that ..
cr.device_to_user(x,y); //where cr is a Cairo.Context
.. actually works, and that there is no equivalent way to do this in
situations where you have no context.
I have tried the suggested manual formulas, as well as the "invert then
transform_point" approach. (Thx, btw.) Neither have done what the
cr.device_to_user does. (And I'm likely the reason for any bugs.)
"How can I take a pair of coordinates in device space into user space
(by way of a pre-saved matrix) in some handler that has no access to the
Is my wording of the problem clear? I'm not sure because math. :)
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