Re: [DiaCanvas] Re: Welcome to the "Diacanvas-devel" mailing list

[Arjan M. <arj...@he...>]

Hi,

Phillip Neumann wrote:

> 
> Hello...
> 
> Im new to diacanvas, and i wonder how to draw a circle on the canvas.

You can have a look at demos/dia-clock.c. I think it contains all the data you 
need (but it's in C). Basically all you need to do is inherit from CanvasElement 
and create a diacanvas.shape.Ellipse instance in your constructor. In the 
on_update(self, affine) method you resize it so it has the same width and height 
as the "width" and "height" properties of your object. I beleive I've drawn a 
circle in one of the .py examples as well.

> anyone would give me a tip?
> 
> all i can do i draw a CanvasBox....

CanvasBox is a default (example) class which draws only a box. I have no such a 
thing for circles.

> what about a png image?..

You can use CanvasImage to draw one. It cannot be exported to SVG however.

If you have any more questions please do not hesitate to ask.

Regards,

Arjan

> 
> 
> thank you in advance,
> 
> 
> PD: im using python
> 
>