qtvismach, a axis toolpath

Could be an opengui issue - all linuxcnc's opengl code uses ancient code libraries.

try this - it sets everything half alpha:
If it doesn't work then I would guess openGl problem.

Tk doesn't support alpha color either (it's why the qt version didn't)

In this video you can see that the tool path rotates around the C axis, so I think it can be done.

Yes, I thought you wanted a straight line to wrap around a cylinder (ie a synchronized AX move to be shown as a helix).
What you want is quite standard, you just need to attach 'work' to your rotary table.
This is an example from '/src/hal/user_comps/vismach/xyzac-trt-gui.py'
Examples can be found in all the vismach models with work side rotation (eg xyzac-trt-gui.py, xyzbc-trt-gui-py, xyzab-tdr-gui-py)

it doesn't work with this code either. I've also tried entering a static value there before, but why does it work for you?
I tried on different systems, without success.


edition
I just noticed the reply.
Thanks Aciera for the code, I will try to use it.
I'll let you know if it works

As for open glTransparency:
As cmorley said, the alpha channel is broken and you have to use 'BLEND' and affiliated functions. I find it terribly confusing and I usually end having it where I did not want it.

To check if it works on your system you could just start the 'axis' simulation config and home the machine, Then look at the tool cone (which should be transparent):

 

I know it's not in vismach or qt but it's all opengl in the background:

 

Thanks a lot Aciera, this code example and xyzac-trt-gui.py simulation file helped me a lot.
Now it works the way I wanted.
 

I would also like to achieve transparency.
After basing the axis, the cone is filled with color, without transparency.
Where would I use "BLEND"?

blend is the code that I added to primitives.py