[solved] Changing polygon line thickness only

LeeB_86

Is it possible, where there are multiple drawn objects on a canvas, to just change the line thickness of the polygons shown and nothing else? Items are in an inline script.

... and also now that I think about it, can you change the line style? (i.e. to a variety of dash-lines or similar...)

Thanks,

Lee

lvanderlinden

Hi Lee,

You can change the linewidth of, for example, a polygon by calling the function set_penwidth() right before drawing the shape. For example:

from openexp.canvas import canvas
my_canvas = canvas(exp)
my_canvas.set_penwidth(5)
my_canvas.circle(100, 100, 50, fill=False)
my_canvas.set_penwidth(30)
my_canvas.circle(500, 500, 50, fill=False)
my_canvas.show()
self.sleep(2000)

will draw two circles with different linewidths (i.e., 5 and 30 px, respectively).

For more information, see:

• http://osdoc.cogsci.nl/python/canvas/#canvas.line

Does this help?

Best,

Lotje

LeeB_86

That helps a lot... I thought the penwidth function was only canvas-wide, I didn't realise it could be used repeatedly for different objects.

Any ideas about changing line style in a similar fashion?

Thanks again!

Lee