unsolved Some problem when Post about G2/G3 with R

[w59001]

Hi, I am Jerry from Taiwan. Thanks for this software,I use it in school and introduction about CNC machine.

I have some problem when Post about G2/G3 with R
It is ok when post circle using IJ
but some error in R , if the central angle > 180 degree

 

[w59001]

here is the post file and dxf file.

 

[spicer]

Use this postprocessor:

Bitte, Anmelden oder Registrieren to view codes content!

 

[spicer]

Has that solved your problem?

 

[w59001]

Dear spicer:

It's amazing that reply so fast.

I am sorry for my poor English. I has not given the question a very detailed description of the postprocessor.

My question is I need a minus sign(-) before R if the central angle > 180 degree.

mypost about G2

arc_int_cw = G2 X%XE Y%YE R%R%nl

the nc code like this

G2 X19.05 Y12.89 R2.24

but i need this if angle of the arc is big then 180 degree

G2 X19.05 Y12.89 R-2.24

I am not familiar with Python but in C

I guess the program like this

if abs(s_ang - e_ang) > pi:
R=0-R

in somewhere(maybe dxf2gcode/core/arcgeo.py or /dxf2gcode/postpro/postprocessor.py)

 

[spicer]

Hmm, it's a question for @chrisko
Sorry