Dear Pd-Forum,
I have a main patch "LAB_main3" that dynamically creates 160 abstractions "hover_canvas3" into the subpatch "guisubpatch". The subpatch is only there in order to clear the subpatch on init/loadbang.

The abstraction consists of the [mousepad] object from the ELSE library and a [line] which does a constant color change of the [mousepad]. My problem is that I have a heavy CPU load (top command, 50 %) when I load the main patch and the color change is taking place. I need to reduce the CPU load because the patch needs to grow bigger in the future. Do you have a hint on how I can achieve this? I played aroung with [line]s grain size but seems to have no effect.

The patches are attached.

Thanks! Jakob

LAB_main3.pd hover_canvas3.pd

@Jakki I have tried a few things and unfortunately it is the re-drawing of the objects that are changing colour that is the problem.
Even with a simple gui like [toggle] in place of [pad] the patch will struggle.
Pd cpu is fine...... it is the wish binary that has the overhead........ and so there is nothing you can do in your patch to solve the problem.
If you do not show the objects through the "graph on parent" it is fine.... but pointless.
There might be other applications that are better designed to deliver your project...... Pd is for audio really, and the gui was chosen only to support the programming for the audio thread.
Running Pd in a browser might work but I don't know that it would.

Using Gem or Ofelia might well work if you want to stick with Pd.
They are designed for graphics...... while wish is very restricted in what can be achieved.

Here is an example of mouse interaction taken from the "Extended View" library for Gem.
You will need the Gem library for Pd for it to work but I think I have included all the objects necessary once you have Gem installed.
gil.zip
Open gil_EXAMPLE first.
David.

@Jakki I made a small GUI library for Ofelia: https://github.com/Jonathhhan/Pure-Data-Ofelia-Emscripten
You can test it here: https://puredatagui.handmadeproductions.de/
Changing the color if the mouse moves should not be a problem with this...