Question about performance

[adamfierek]

Hi there,
I need to display big amount of paths in my application and use transform to manipulate scene - translate and scale. With 60k paths I can see a decrease of performance. Translating using touch screen is not as smooth as expected.

I'm using CanvasControl and preparing paths to display by creating CanvasGeometry. In Draw callback I'm calling DrawGeometry for each prepared geometry after setting Transform. I tried to use CanvasCachedGeometry but I need to use CanvasStrokeTransformBehavior.Hairline to keep stroke width while scaling. What can I do to increase performance of my app?

Maybe there is a better approach? At now I have this kind of app written in OpenGL and C++ but I think it's easier to rewrite it to integrate with WinUI 3.

Thanks in advance for any suggestion.

[mdmozibur]

Same problem here.
Any suggestion on this @ChewWorker , @Sergio0694 ?

[mdmozibur]

Recording.2024-10-05.131402.mp4

This is the simplest description of the problem:
The circle is a CanvasCachedGeometry. When I am applying a scale transform to the CanvasDrawingSession.Transform, I don't want the stroke-width to be scaled as well, I want the stroke width to be 1px always.
using CanvasCachedGeometry.CreateStroke with a CanvasStrokeTransformBehavior.Hairline doesn't chage the behavior.
This seems like something achievable. But not sure how.