I have written this script for rendering a SVG in a wxPython frame:
#!/usr/bin/env python
import wx
import rsvg
import cairo
import numpy
class TestFrame(wx.Frame):
def __init__(self, parent, id, title, pos, size):
wx.Frame.__init__(self, parent, id, title, pos, size)
imgW = size[0]
imgH = size[1]
brga = numpy.ndarray(shape=(imgH,imgW,4), dtype=numpy.uint8)
brga[:,:,0].fill(180) #blue
brga[:,:,1].fill(105) #green
brga[:,:,2].fill(255) #red
rgba = numpy.ndarray(shape=(imgH,imgW,4), dtype=numpy.uint8)
data24 = numpy.ndarray(shape=(imgH,imgW,3), dtype=numpy.uint8)
stride = imgW * 4
surface = cairo.ImageSurface.create_for_data(brga,
cairo.FORMAT_ARGB32,
imgW,
imgH,
stride)
ctx = cairo.Context(surface)
rsvg.set_default_dpi(900)
svg = rsvg.Handle('tiger.svg')
svg.render_cairo(ctx)
rgba[:,:,0] = brga[:,:,2]
rgba[:,:,1] = brga[:,:,1]
rgba[:,:,2] = brga[:,:,0]
rgba[:,:,3] = brga[:,:,3] #alpha
data24[:,:,0] = brga[:,:,2]
data24[:,:,1] = brga[:,:,1]
data24[:,:,2] = brga[:,:,0]
img = wx.ImageFromData(imgW, imgH, data24)
bmp = wx.BitmapFromImage(img)
# bmp = wx.BitmapFromBufferRGBA(imgW, imgH, rgba) #wxPython 2.8
static_bmp = wx.StaticBitmap(self, -1, bmp)
self.Show(True)
if __name__ == '__main__':
app = wx.PySimpleApp()
frame = TestFrame(None, wx.ID_ANY, 'test rsvg', (200, 200), (800, 800))
app.MainLoop()
I see in the librsvg API doc that there is a function RsvgSizeFunc()
which I imagine can be used for changing the image size.
Can anyone tell me how I might go about scaling my rendered image
using the python bindings as I would like to be able to zoom in and
out?
Regards,
Richard
_______________________________________________
pygtk mailing list [email protected]
http://www.daa.com.au/mailman/listinfo/pygtk
Read the PyGTK FAQ: http://www.async.com.br/faq/pygtk/
