FCStd file order sensitivity causes problems for me

[DeepSOIC]

Hi!
I'm working on a FCStd-file reader/writer for part-o-magic. And while reading them is fairly straightforward, writing them proves to be quite a challenge.
Particularly, FreeCAD is sensitive to the order the files are written to the zip, and that causes quite some headache for me.

Initially, I thought that only Document.xml is required to be the very first file. Now it turns out, the whole order appears to be important.

For example, I repacked the project with file order changed (see attachment). It does open, but no shapes are loaded. And strangely, I don't notice any errors in console.

Code: Select all

original             |   rewritten
                     |   
Document.xml         |   Document.xml
PartShape.brp        |   GuiDocument.xml
PartShape1.brp       |   PartShape.brp
PartShape2.brp       |   PointColorArray
PartShape3.brp       |   LineColorArray
PartShape4.brp       |   DiffuseColor2
PartShape5.brp       |   PointColorArray5
GuiDocument.xml      |   PointColorArray4
DiffuseColor         |   PointColorArray1
LineColorArray       |   DiffuseColor5
PointColorArray      |   PartShape2.brp
DiffuseColor1        |   DiffuseColor3
LineColorArray1      |   LineColorArray5
PointColorArray1     |   PartShape1.brp
DiffuseColor2        |   DiffuseColor1
LineColorArray2      |   DiffuseColor4
PointColorArray2     |   PointColorArray2
DiffuseColor3        |   PartShape4.brp
LineColorArray3      |   LineColorArray1
PointColorArray3     |   LineColorArray3
DiffuseColor4        |   PointColorArray3
LineColorArray4      |   PartShape3.brp
PointColorArray4     |   PartShape5.brp
DiffuseColor5        |   LineColorArray2
LineColorArray5      |   LineColorArray4
PointColorArray5     |   DiffuseColor

Any chances this can be fixed?

OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.15518 (Git)
Build type: Release
Branch: master
Hash: e83c44200ab428b753a1e08a2e4d95e03236e481
Python version: 3.6.6
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: Russian/Russia (ru_RU)

[wmayer]

The order is

1. Document.xml
2. All data files of properties of DocumentObjects
3. GuiDocument.xml
4. All data files of properties of ViewProviders

The order of the data files in 2. and 4. can be arbitrary. See also: https://github.com/FreeCAD/FreeCAD/blob ... octools.py

[DeepSOIC]

The order of the data files in 2. and 4. can be arbitrary

Thanks, that helps very much!

[wandererfan]

I'm working on a FCStd-file reader/writer for part-o-magic. And while reading them is fairly straightforward, writing them proves to be quite a challenge.

Just FYI, @kbwbe has been doing some work on reading FCStd files for A2plus. Some sharing might be possible.

ping!

[kbwbe]

I'm working on a FCStd-file reader/writer for part-o-magic. And while reading them is fairly straightforward, writing them proves to be quite a challenge.

Just FYI, @kbwbe has been doing some work on reading FCStd files for A2plus. Some sharing might be possible.

ping!

Hi,
with A2p, i am only reading out document.xls, for generating partlists and recursive update of parts. There is no writing and repackaging.