[guidata/guiqwt] How to create a filled polygon ?

[Uwe Schmitt]

Hi,

I managed to create a polygon using


shape = PolygonShape(points, closed=True)


but I do not know how to set the

shapeparam

argument so that the plotted polygon will have a transparent filing.
Any help is very appreciated.

Best, Uwe

[Russ Berg]

Hi Uwe, here is a function I wrote to create rectangles that shows how the shapeparam is set.
-Russ

def create_rectangle(self, rect, title='None'):
r = make.rectangle(rect[0], rect[1], rect[2], rect[3], title=title)
sh = r.shapeparam
sh.fill.alpha = 0.05
sh.sel_fill.alpha = 0.05
sh.symbol.alpha = 0.05
sh.sel_symbol.alpha = 0.05

sh.symbol.marker = 'NoSymbol'
sh.sel_symbol.marker = 'NoSymbol'
r.set_item_parameters({"ShapeParam":sh})

self.plot.add_item(r)


From: ***@googlegroups.com [mailto:***@googlegroups.com] On Behalf Of Uwe
Schmitt
Sent: September-22-15 11:21 AM
To: guidata/guiqwt
Subject: [guidata/guiqwt] How to create a filled polygon ?

Hi,

I managed to create a polygon using


shape = PolygonShape(points, closed=True)

but I do not know how to set the

shapeparam

argument so that the plotted polygon will have a transparent filing.
Any help is very appreciated.

Best, Uwe
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