[reportlab-users] Problem with renderPM.saveToFile; how to output .PNG?

[waxmop]

I should have mentioned that I want/need to save a Drawing object to a
.PNG file.  I'm having no luck at all getting data out as .png.  Can you
walk through a trivial example where you create a simple 'hello world'
drawing object, then save the output to a bunch of different formats?

It would be super-helpful.





On Fri, 15 Aug 2003 18:32:17 +0100
Robin Becker <robin@reportlab.com> wrote:

> In article <20030815095934.00248b88.waxmop@gtcinternet.com>, waxmop
> <waxmop@gtcinternet.com> writes
> >Thanks for the help.  If I've already created a Drawing object like this:
> >
> >>>>from reportlab.graphics.shapes import *
> >>>>from reportlab.lib import colors
> >>>>d = Drawing(100,100)
> >>>>r = Rect(10, 10, 80, 80, fillColor='yellow')
> >>>>d.add(r)
> >
> >How do I send that Drawing object to a file?  I thought I would just
> >pass d to PMCanvas.saveToFile(...), but that didn't work.
> >
> >
> drawings have a save method. Check the method in
> reportlab/graphics/shapes.py
> >
> >
> >
> >On Thu, 14 Aug 2003 17:19:39 +0100
> >Robin Becker <robin@reportlab.com> wrote:
> >
> >> In article <410-220038414122037242@M2W030.mail2web.com>, 
> >waxmop@gtcinternet.com
> >> <waxmop@gtcinternet.com> writes
> >> >>>You problably meant to use "drawToFile" instead.
> >> >
> >> >The graphics guide on page 4 says to use 'saveToFile' rather than
> >> >drawToFile with PNG output:
> >> >
> >> >If we wanted to generate the same drawing as a bitmap file for a website,
> >> >say, all we need to do is write code like this:
> >> >
> >> >from reportlab.graphics import renderPM
> >> >renderPM.saveToFile(d, 'example1.png', 'PNG')
> >> ....saveToFile is a method of the PMCanvas whilst drawToFile is a module level 
> >function.
> >> 
> >> 
> >> PythonWin 2.2.3 (#42, May 30 2003, 18:12:08) [MSC 32 bit (Intel)] on win32.
> >> Portions Copyright 1994-2001 Mark Hammond (mhammond@skippinet.com.au) -
> >>  see 'Help/About PythonWin' for further copyright information.
> >> >>> from reportlab.graphics.renderPM import PMCanvas
> >> >>> c = PMCanvas(10,10)
> >> >>> c.saveToFile('/tmp/bongo.png','PNG')
> >> >>> 
> >> 
> >> -- 
> >> Robin Becker
> >> _______________________________________________
> >> reportlab-users mailing list
> >> reportlab-users@reportlab.com
> >> http://two.pairlist.net/mailman/listinfo/reportlab-users
> >> 
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> 
> -- 
> Robin Becker
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