def show(request, diag):
tree = diagparser.parse(diagparser.tokenize(bz2.decompress(
base64.b64decode(diag.replace('-', '/'))).decode('utf-8')))
diagram = builder.ScreenNodeBuilder.build(tree)
response = HttpResponse(mimetype='image/png')
draw = DiagramDraw.DiagramDraw('PNG', diagram, response, antialias=False, font=settings.FONT)
draw.draw()
draw.save()
return response
def nwdiag_generate_image(source):
import nwdiag
from nwdiag import diagparser, builder, DiagramDraw
try:
tree = diagparser.parse(source)
diagram = builder.ScreenNodeBuilder.build(tree)
draw = DiagramDraw.DiagramDraw('SVG', diagram)
draw.draw()
svg = draw.save('').decode('utf-8')
etype = None
error = None
except Exception, e:
svg = ''
etype = e.__class__.__name__
error = str(e)