The Parameters

Hello, I am writing G-code files with parameters O<measure> call [#1] [#2] ... and I cannot access certain variables in LinuxCNC 2.9.4 (e.g., <#_tool_diameter>). I need to read this data in my tool table in order to develop my program. Can anyone help me?Thank you.

Not a lot to go on. Where are you assigning a value to what parameter, where are you trying to access it and what happens when you do?
Usually best to give a short example of what you are trying to do and describe what is not working as expected.

I am currently developing a parametric program (sub) to measure the exact dimensions of my tools. I need to read the theoretical diameter contained in the tool table that I use for my approaches. Thank you.

Hello,
I need to acces at these set :DEBUG, Outil actif = #<tool>)
(DEBUG, Longueur outil = #<tool_length_offset>)
(DEBUG, Diamètre outil = #<tool_diameter>)
(DEBUG, Rayon outil = #<tool_radius>)

wihtout succes

Thanks

This is for the loaded tool.
 dont know how to read the tooltable with gcode. I'm affraid it's not possible. 


(DEBUG, Outil actif = #5400) 
(DEBUG, Longueur outil = #5403)
(DEBUG, Diamètre outil = #5410)
#<tool_radius> = [#5410 / 2]
(DEBUG, Rayon outil = #<tool_radius> )
 

You can use the loaded tool numbered or named parameters in G Code.
5400 - Tool Number. Volatile.
5401-5409 - Tool Offsets for X, Y, Z, A, B, C, U, V & W. Set by G43. Volatile.
5410 - Tool Diameter. Volatile.
5411 - Tool Front Angle. Volatile.
5412 - Tool Back Angle. Volatile.
5413 - Tool Orientation. Volatile.
#<_tool_offset> - Return 1 if tool offset (G43) is on, else 0.
#<_current_tool> - Return number of the current tool in spindle. Same as #5400.
#<_current_pocket> - Return the tool data index for the current tool.
#<_selected_tool> - Return number of the selected tool post a T code. Default -1.
#<_selected_pocket> - Return the tool data index of the selected pocket post a T code. Default -1 (no pocket selected).

You can use O Codes to do calculations.
linuxcnc.org/docs/stable/html/gcode/o-code.html

This might be a lot easier to do in Flex GUI where you can do calculations in Python.

JT