GEMF files not shown

[osmdroid]

GEMF files not shown

[neilboyd]

There are several open issues in the old Google Code issue tracker. Please feel free to submit a pull request.

[MKergall]

Effectively, I didn't check in gooclecode issues. In fact, my issue is 100% redundant with this one:
http://code.google.com/p/osmdroid/issues/detail?id=360
Looking at [email protected] comment #1, it looks like it could be a bug in MOBAC.

[MKergall]

Note that in MOBAC, it's possible to use the "custom tile processing" to get MapQuest tiles as PNG images instead of JPEG.
Using this option, the resulting GEMF file is displayed correctly under osmdroid, when using any default tile source (TileSourceFactory.MAPNIK or TileSourceFactory.MAPQUESTOSM for instance).

[jmwohl]

I'm also running into this issue — neither the GEMF nor Zip files work with jpgs as the source images. JPGs do work fine as plain old tiles, but once they are packaged they no longer load.

In my case, using MOBAC to convert the tiles to pngs isn't an option, and certainly isn't a fix for this bug... it should be possible to use jpgs.

I thought maybe it had to do with the getDrawable method that takes an InputStream, since it's called for both GEMF and Zip, but after a bit of debugging it seems that when the GEMF/Zip contains jpgs the getDrawable method is never called, suggesting the problem occurs earlier on in the code's execution.

There are no errors that I can see, but I'm not sure how to view the slf4j logs... that would be helpful.

[spyhunter99]

old issue, but i just merged some code to remove slf4j. all log output now goes to android's logcat. it may shed some light on the issue.

[spyhunter99]

i had some time to look at this, same scenario with jpegs.

Confirming same behavior as detailed above.
final Bitmap bitmap = BitmapFactory.decodeStream(aFileInputStream, null, bitmapOptions);

Just guessing, but this looks like a google problem, not ours.
See https://code.google.com/p/android/issues/detail?id=6066

I tried their work around but it didn't work :(

[MKergall]

I don't think it's similar to https://code.google.com/p/android/issues/detail?id=6066

• They report that BitmapFactory.decodeStream() returns null, I think that in our case, it never returns.
• We have this issue when using GEMF format. Not with MapQuest online tiles (which are jpeg). Not sure for jpg in a ZIP.
• Apparently, the same issue occurs with the same GEMF files on a QT viewer.

So I really suspect MOBAC GEMF encoding.

[spyhunter99]

@MKergall want to open a mobac bug report?

[spyhunter99]

#615 fix