[reportlab-users] Absolute coordinates of rendered flowables?

[Dinu Gherman]

Robin Becker:


> well OK you need to provide the drawOn method to eliminate any  

> translation provided by the default behaviour. So I suspect your  

> drawOn needs to look like this

>

>    def drawOn(self, canv, x, y, _sW=0):

>        try:

>            self.canv = canv

>            self.draw()

>        finally:

>            del self.canv

>

> but this won't be sufficient if any other part of the process has  

> modified the canvas transformation. In that case you probably need  

> to reset the transformation in drawOn ie try doing

>

>

>    def drawOn(self, canv, x, y, _sW=0):

>        self.canv = canv

>        self.canv.saveState()

>        self.resetTransforms()

>        try:

>            self.draw()

>        finally:

>            del self.canv

>            self.canv.restoreState()

>

> so in this last version you're using the default user space


That does the job! I wasn't aware I was expected to overwrite
the drawOn method.

Thanks!

Dinu