idf importing error

[fiffo]

Hi,
can you help me to understand why there are errors when I tray to import this idf files.
Thanks a lot

OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.15321 (Git)
Build type: Release
Branch: master
Hash: ef002fdde2f2626c3fd04afea3d54e145d4ecdb0
Python version: 2.7.14
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: English/UnitedStates (en_US)

[openBrain]

Hi,

Nothing sure but here some assumptions that you may try.
About FreeCAD
* Try generating your IDF file in mm (millimeters) units => it may be more "natural" for FreeCAD to work with
* Try generating your IDF in a V2 format => yours is a V3 and I don't know whether FreeCAD handles it correctly or not
Some inconsistencies in your file also :
* There are a lot of placement outlines and placement regions, but they all are outside the board outline (which is a non sense)
* Your software isn't really compliant with IDF standard as it precedes coordinates with a '0', which means coordinates are in a counter-clockwise direction, but coordinates are actually stored in the clockwise direction

BR

[easyw-fc]

Hi,
can you help me to understand why there are errors when I tray to import this idf files.
Thanks a lot

if you enable Report view you should see:

<class 'Part.OCCError'>: Both points are equal

[fiffo]

Hi,
I was read the report "<class 'Part.OCCError'>: Both points are equal" but I don't understand where is the problem.
Sorry

[easyw-fc]

You have a segment of your pcb with almost zero length

[fiffo]

This is the original file on Altium 18.1.9 ( I can convert if need).
Can somebody can help me to understand where it is the problem?
thanks a lot

[openBrain]

This is the original file on Altium 18.1.9 ( I can convert if need).
Can somebody can help me to understand where it is the problem?
thanks a lot

Caught it ! I targeted the EMP file as the EMN one was opening correctly.
Indeed in the diode package shaping, there are 2 identical points (line 10 & 11, see below) :

same_points.png (10.55 KiB) Viewed 286 times

I deleted one of the 2 lines and everything goes fine.
However I can't tell if the issues originated from a wrong part package definition or from a bug in the ECAD software.

BR

[fiffo]

fantastic.
in the last file upload there are not components but I have same problem: I tested this idf file with Mentor Pads LAyout and idf imported work well.

[easyw-fc]

fantastic.
in the last file upload there are not components but I have same problem: I tested this idf file with Mentor Pads LAyout and idf imported work well.

in your altium file you have doubled the outline edge (you have drawn the edge twice on the same outline)

[openBrain]

fantastic.
in the last file upload there are not components but I have same problem: I tested this idf file with Mentor Pads LAyout and idf imported work well.

Indeed there is a similar issue now in your EMN file :

same_points2.png (11.87 KiB) Viewed 271 times

This is due to the way your ECAD software exports the 2 successive arcs of the board outline.
It seems correct from a geometrical POV but breaks FreeCAD as it uses several times the same point.
I don't know if it is a (wrong) FreeCAD limitation or an uncompliance to IDF format from your ECAD.

Notice you can easily find the coordinate duplicates with following command line (using GoW or busybox while you're in Windows) :

Code: Select all

cut -d " " -f 2-3 YOUR_FILE | uniq -d

BR