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Summary 0032264: Data Exchange - STEP exporter generates bad geometry [REGRESSION since 7.4.0]
Revision 2021-03-29 19:10 by kgv
Steps To Reproduce - Use version 7.5.1 (I think 7.5.0 also shows the bug).
- Run the following draw test harness script with the attached good_geometry.brep file:

##### DRAWEXE.script Begin #####
pload XDE MODELING VISUALIZATION

vinit View1
restore good_geometry.brep good

testwritestep bad.stp good
testreadstep  bad.stp bad
vdisplay -dispMode 1 bad good
vsetlocation good 6 0 0
vfit
##### DRAWEXE.script End #####


- Then run it like this: DRAWEXE -i -f DRAWEXE.script

You'll now have a file on your disk called bad.stp which will contain incorrect geometry (as compared with good_geometry.brep). Several boolean subtractions have somehow turned into unions!
Revision 2021-03-29 18:38 by grey.christoforo_170262
Steps To Reproduce - Use version 7.5.1 (I think 7.5.0 also shows the bug).
- Run the following draw test harness script with the attached good_geometry.brep file:

##### DRAWEXE.script Begin #####
pload XDE MODELING AISV

vinit
restore good_geometry.brep good

testwritestep bad.stp good
testreadstep bad.stp bad
vdisplay bad good
vsetdispmode 1
vsetlocation good 6 0 0
vfit
##### DRAWEXE.script End #####

- Then run it like this: DRAWEXE -i -f DRAWEXE.script

You'll now have a file on your disk called bad.stp which will contain incorrect geometry (as compared with good_geometry.brep). Several boolean subtractions have somehow turned into unions!


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