Satellite Maps

[Alfiere]

If someone is interested to this map I can upload into Histwar Depot.(less attractive until Orendel do not build historical OOB)
Made with Google Earth and Scilab and Google maps for position of villages.
Only the map it is not scenarios.
Attach file is example.

[Count von Csollich]

the map looks great! - please do upload it! 

CvC

[Alfiere]

Ok,Count.

Ok done
Next time i want to try with Auerstadt.

[Alfiere]

Preview of Auerstadt satellite 10 km to finish
Made with Google Earth and Scilab and Google maps for position of villages.
Funny to build.

[Théodoricus]

Downloaded. Thanks for this other map with satellite elevations.

 
Théo

[Alfiere]

Preview of Auerstadt satellite 10 km to finish
Made with Google Earth and Scilab and Google maps for position of villages.
Funny to build.

Ready and upload.

[HarryInk]

Auerstedt looks like an excellent effort.  Kudos.  I must learn how to use the map making tools you have used.

[Alfiere]

For first thing you have to download a manual of Brucepos
here:
http://www.guggs.de/hwlg/category.php?id=5&session=a5135cced92a023f34f7eab87974c18f
Then need
Google earth
Scilab
A spreadsheet to facilitate the calculations

Now SRTM4.1 is little different from manual of brucepos , but there is another way to download the matrix of reliefs,
if you click on SRTM4.1 on Goggle earth you can select a area and download the matrix of reliefs of that area (is little slow)
you must select ascii....(do not remember) and download with HTTP

You have to try.
Another thing on Google earth in the options you must select kilometers and degree in decimal before you take note of lat and long of top left end bottom right points of map. 
Then it is not need the conversion (brucepos speak of conversion because use degree not decimal ,but is very easy make mistake)

Attach pics

[Théodoricus]

Hi Alfiere,

If I well understand your explainations, there is a new strm system (version 4.1).
Is that the reason why I don't succeed in having the files at the moment ?
Now when I open Google earth and strm, I got tiles with red crosses and I can't download the ascii files : the link is broken.
Do you think I must delete the ancient strm and download the new one ?

Best regards,

Théo

[Alfiere]

I have read your post.

At once i have tried and all work for me.
Yes SRTM4.1.
I have saved it and when launch start Google Earth.

When you press on SRTM4.1 tha mask (how in my attach files ) is little slow,but work.

Do you think I must delete the ancient strm and download the new one ?
Try is not bad if you have problems.

[HarryInk]

Thankk you.

[Alfiere]

This my calculations to put in editor (with copy and past) after change with data for specific map ,of scilab and run.
I used openoffice calc how spreadsheet.
For all maps but not for 6km.
Theo take a look and talking about.

(Deleted formulas.)

[Théodoricus]

This my calculations to put in editor (with copy and past) after change with data for specific map ,of scilab and run.
I used openoffice calc how spreadsheet.
For all maps but not for 6km.
Theo take a look and talking about.

Hi Alfiere,

I totally agree with your calculations.
As I previously said, I also use an OpenOffice calc spreadsheet to do the calculations (thanks to glaude1955).

Comparing with the instructions of Brucepos, the only thing that changes in the calculations is the number of rows and columns which are now of 6001, instead of 1200 or 2400. It's because of the biggest data files we can download now on Google earth.
So the only number to change is in b15 to do the calculation for the Top corner latitude :
c11+b15*c13 =yllcorner+6001*cellsize

The lines for Scilab program are also good. Nothing has changed with previous Brucepos' Instructions.

As you said, this doesn't work for 6 km map.

Thanks  a lot for this post.

 
Théo

[Alfiere]

Hello Théodoricus

I am very happy with your confirmation for the calculations.
Clear all doubts.
I think is useful for those wishing to try.
the only annoying thing is to remove the header of the file and save in text format, for a file of 150-180 mega is very long.

[Théodoricus]

Hello Théodoricus

I am very happy with your confirmation for the calculations.
Clear all doubts.
I think is useful for those wishing to try.
the only annoying thing is to remove the header of the file and save in text format, for a file of 150-180 mega is very long.

Yes indeed, it's very long.

It was better before when we could download data files of 1 degree sub-tiles from the King's College of London because the files were of 1200 and not 6001.
But now we can't because Mark Mulligan (professor of the King's College of London) explains that there is a bug with Google earth version 4.1.
 http://www.kcl.ac.uk/schools/sspp/geography/research/emm/geodata

Anyhow, your way to download data elevations files of 6001 is a good alternative.

I hope scenarios creators will use the same method to have really good maps.

Théo