GPSFS Utility Program

[deniska]

@MIB.42, I finally got some time to try out this program, and I must say, it's pretty cool.

I used to do similar thing with cygwin scripts and image-magic, but, of course, it was not as user friendly...

[MIB.42]

MIB.42 are you checking the bikini babes on vacation or ?

We thought you left this project !

When does the .3 version pop-up, with PNG support ?

Thanks !

Ok, bikini babes are all accounted for. I am back on the project. I still have to think of an effective way of color reducing those png files to 16 though... My present routines either are memory hogs or CPU ones... must... think... more...

[Codaz]

Good luck, i'm still converting my 550 mb map on a spare celeron computer i found.

Way too slow but ok.

[MIB.42]

Just status update... Getting closer to a decent - and relatively fast - color reduction... It's not trivial... Here is a snapshot on the analysis code to fine-tune the algorithm :

[deniska]

nice!
Looks almost as complex as photoshop.. :-)

[MIB.42]

nice!
Looks almost as complex as photoshop.. :-)

Thanks, actually, it does a lot more than photoshop... ;-)
Anyways, I thought I go after the tools, as you guys seem to have the PSP code quite well covered... ;-)

Cheers, MIB.42

[deniska]

I was hopping you'd do some psp coding too...
I may need help in following areas:
- psp-290 -> nmea converter
- stick to road functionality (check current pixel and see if you are on a road, if not try to look around for road colors..
- route calculator (based on google maps imagery)

anyway.. it's up to you!
great work with the tool!

[Codaz]

Great MIB.42 !

Could you make this simple function into 0.3 ?

Comparison table of sizes. If i resize a picture in Photoshop it says:

At quality 100 the size will be ... At quality 50 the size will be ....

Now in your program could you make a comparison (with radio buttons) to choose if you want to have JPEG conversion, or PNG conversion)

So for example:

Your map with 60% compression will be 500 mb with JPEG and 400 mb with PNG. So we can choose what's best for us. Not only the file quality but also file size comparison

This is calculated on the fly after conversion.

[Ixar]

Is there any up to date GPSFS documentation available ? I have read mapthis parsing code, but it is a bit ennoying... So if you have just some clues they are welcome

I would like to understand the "basezoom", is it to tell the zoom used for the map first level of tiles (ie the first 4 tiles if I understood properly) ?

Regarding the tile index in the early documentation I found it is said it is an offset, but as there are several files I guess there must be a file index as well.

Regarding the tiles size is it constraint ? (ie 256x256) or is it free ?

Thanks for your help

[Ixar]

Is there any up to date GPSFS documentation available ? I have read mapthis parsing code, but it is a bit ennoying... So if you have just some clues they are welcome

I would like to understand the "basezoom", is it to tell the zoom used for the map first level of tiles (ie the first 4 tiles if I understood properly) ?

Regarding the tile index in the early documentation I found it is said it is an offset, but as there are several files I guess there must be a file index as well.

Regarding the tiles size is it constraint ? (ie 256x256) or is it free ?

Thanks for your help

Finally I found the missing informations in gmdl source code (GPSFS.cs FYI)

What I was missing is the 2 formats for GPSFS, I was only aware of the 1st one. Now things are more clear.

Best Regards,
Ixar