Incorrect TempDir Parsing Prevents any Stitching.

I have the same problem:

make: C:\DOCUME~1\USER\Local^: No such file or directory
make: *** No rule to make target `C:\DOCUME~1\USER\Local^'. Stop.

A workaround is using a batch file for starting hugin that sets "temp" temporarily to a path that is correctly parsed eg.g:

set temp=g:\temp\
set tmp=g:\temp\

C:\Programme\Hugin\bin\hugin.exe
pause

From what I can tell, hugin uses wxFileName::CreateTempFileName() to create the temporary project file that is passed to hugin_stitch_project for stitching. Previously, if the file is was created and error was reported, but Hugin still continued forward, calling hugin_stitch_project anyways. This is now fixed (trunk, Rev 4386.)

Note the entry in the Preferences Dialog does not get used for the creation of this file. Instead, the value of the entry is recorded in the makefile and passed onto other executables called by the makefile (nona, enblend, etc). Should this be changed?

As this is a wxWidgets call, my guess is there is a problem with the user's environment settings, or a problem with wxWidgets. A workaround is discussed that overrides the system TMP and TEMP variables, before hugin is called, which makes things work. That would lead me to believe something is up with the defaults for those environment variables on said machines.

- Gerry

Lukas fixed it so the setting is written to the Makefile, this ensures that enblend/enfuse use the correct temp location for cache files.

What hasn't been fixed is that the temporary .pto file that is created for stitching has internal paths set for creating intermediate TIFF files that are deleted later - My understanding is that the location of these TIFF files isn't effected by the tempdir preference setting, but is only effected by the $TEMP environment setting.

Hmm...

What is the desired behaviour?

Is it this:

intermediate files written to the TEMPDIR, sourced from paths described in .pto file
output files written to the output path specified in the dialog, sourced from intermediate files from the TEMPDIR
specific executable temporary files (image cache) written to TEMPDIR

- Gerry

hi Gerry,

do I understand correctly that everything would be written to TEMPDIR except the output file and, if the checkbox in the Stitcher tab is ticked, the "remapped images"?

Yuv

Yes the existing hugin behaviour is correct regarding the TEMPDIR environment variable, all temporary intermediate files are created in TEMPDIR.

The problem as I understand it is that the hugin Tempdir preference should override this and it doesn't.

This is separate to TEMPDIR being set in the .pto.mk files, this only effects the behaviour of enblend when it runs out of memory, and is set properly as far as I know.

similar or the same as bug # 678632