problems in using jpg- and jgw-file

[german_kite]

Hi,

I am a german biologist using ArcView as a GIS-program. I usually take an aerial photo (as .jpg-file) and georeference it (make a .jgw-file). Now I want to use the android-app OruxMaps, to take this photo(s) into the field and for example mark some points (bird-nets ....).



Therefore (I guess) I first have to convert the georeferenced aerial photos with the OruxMapsDesktop?!

I tried to do that, but the program does not except the .jgw-file. Please - can someone give me a hint!



The used .jgw-file looks like this:

1.5194390000

0.0000000000

0.0000000000

-1.5194390000

4443289.5954439305

5668837.7393504446





and the values for the projection I wanted use are as follow:



description in german:

Koordinatensystem Gauss-Krüger

Bessel-Ellipsoid

Datum Potsdam

Streifenbreite 3°

Mittelmeridian 12° Ost

Lagestatus 110

EPSG=31468



I think this might mean:

projection: Gauss-Kruger zone 4

date: DHDN Potsdam

spheroid: Bessel (1841 ?)

units: METERS



So many parameters :-(

I searched for the right way to handle (in the internet), but I think .... I need some help !



Thanks!  Markus

[orux]

Hi,

I am a german biologist using ArcView as a GIS-program. I usually take an aerial photo (as .jpg-file) and georeference it (make a .jgw-file). Now I want to use the android-app OruxMaps, to take this photo(s) into the field and for example mark some points (bird-nets ....).



Therefore (I guess) I first have to convert the georeferenced aerial photos with the OruxMapsDesktop?!

I tried to do that, but the program does not except the .jgw-file. Please - can someone give me a hint!



The used .jgw-file looks like this:

1.5194390000

0.0000000000

0.0000000000

-1.5194390000

4443289.5954439305

5668837.7393504446





and the values for the projection I wanted use are as follow:



description in german:

Koordinatensystem Gauss-Krüger

Bessel-Ellipsoid

Datum Potsdam

Streifenbreite 3°

Mittelmeridian 12° Ost

Lagestatus 110

EPSG=31468



I think this might mean:

projection: Gauss-Kruger zone 4

date: DHDN Potsdam

spheroid: Bessel (1841 ?)

units: METERS



So many parameters :-(

I searched for the right way to handle (in the internet), but I think .... I need some help !



Thanks!  Markus

Hello;



oruxMapsDesktop doesn't support all formats,



please, try with okmap.org I think this tool can read your maps and create oruxmaps maps





orux

[german_kite]

Thanx for the answer!!

I will try soon



Markus