C# Displaying filled circle

Grasshopper Developer
1

Hi

I’m trying to show axial force with circle which depends on each element value.

In DrawViewportMeshes(IGH_PreviewArgs args),
args.Display.DrawCircle doesn’t have filled circle.
So instead of this, I’m using DrawMeshShaded method.

Here is the .gif that shows how my component works.

circle
circle1528×654 132 KB

It works correctly but It’s little bit slow I think.

Is there other solution to display filled circle?

Best,
Shimpei

2

In Rhino6 you can draw symbols. Have a look at PointStyles and the appropriate overload for drawing them.

3

For Rh 5 (and Rh6): You can also use a custom sprite with args.display.DrawSprite. As sprite you load in an small image of a filled circle. Should be faster as well

4

But makes it impossible to draw circles with different radii yet the same edge thickness. You can scale the entire sprite up, but that will also affect the edge width.

5

oh, yes you are right. didn’t think that way.

6

David

I’m very sorry for late reply…

It means that these method will not work in Rhino5?

I’d like to use in both version.

Best,
Shimpei

7

Correct, Rhino6 only.