TrekBuddy

sinanmerjan

I have written a GIS software for Pcs with Delphi. For calibrating maps I have done something like OZiExplorer for knowing the projection kind and their parameters.
But Also I have a one more option as "unknown projection" . when user select that one, it will try to find the best transform parameters for map x/y and their related lat/lan. It is not as accurate as knowing the exact map projection, but it is able to use any kind of maps, even with any eventual distortions.
It has a bit intricate code and uses the "Surface" or "Grid" program too. It is an old dos application and suitable for topograpghy and making datums.
I think it be possible to make a tools based on this subject which will not ask anything about map projections. Of corse it may needs more clearance by speaking more about it and also the *.map file format which that tool have to build.
It may be able to build the different zoom levels layers from the main map. And also it may include the Tbcutter inside itself, so with one application we may be able to do all needed jobs for preparing full calibrated different zoom layer sliced maps.
even the tbcutter tool may be included in it and making maps and atlases more easy.

Lakva · Posted: Tue Jan 23, 2007 7:54 am Post subject:

That's gooood! Smile

A question... maybe stupid, I know nothing about GIS... What map source can it use?

yaworski · Joined: 08 Jan 2007 Posts: 64

Lakva · Posted: Tue Jan 23, 2007 10:25 am Post subject:

sinanmerjan · Posted: Tue Jan 23, 2007 10:30 am Post subject:

sinanmerjan · Posted: Tue Jan 23, 2007 10:39 am Post subject:

Lakva · Posted: Tue Jan 23, 2007 11:46 am Post subject:

sinanmerjan · Posted: Tue Jan 23, 2007 12:03 pm Post subject:

Lakva · Posted: Tue Jan 23, 2007 12:37 pm Post subject:

Hmmm... It is algorithm, but I'm afraid that to make program wouldn't be easy...
1) Grab map from web source (using print screen)
2) paste it to graphic editor
3) move to another map segment... and so on
I get a map approx. 6000x4500 px without controls - zoom and pan buttons and so...
But I must stick segments precisely - that's probably the longest job.
4) calibrate in Ozi with coordinates from web source. If I calibrate single map segments, it takes more time (and controls remains on map)
5) cut in TBcutter
6) copy to atlas and to the phone.

Someone has a tool for getting maps and coordinates from google maps, but it's not detailed enought for me.
So, next problem is in versatility of tools like this... National servers has more detailed maps, but limited area only... Sad

sinanmerjan · Posted: Tue Jan 23, 2007 12:49 pm Post subject:

Lakva · Posted: Tue Jan 23, 2007 1:15 pm Post subject:

Well... Each map service has a controls for panning and zooming the map. There are some little windows too, like position on big (state) map or GPS coordinates etc., usually...
I don't want them on my map, so I have to switch them off, if it's possible, or cut them of at all in editor...

sinanmerjan · Posted: Tue Jan 23, 2007 1:29 pm Post subject:

suppose we are speaking about google earth. ok?
and we imagine that we have an application which is able to grab the monitor and cut the unneeded borders to reach to a raw wanted image, then it has to tile it beside the master image . Is it ok? till now? If so, I think this may be prepare.
But after that you have to pan the google by accurate pixel count in your wanted direction. I think this job may be so difficult. is it so?

Lakva · Posted: Tue Jan 23, 2007 1:46 pm Post subject:

sinanmerjan · Posted: Tue Jan 23, 2007 1:49 pm Post subject:

if so you may just need a software which grab monitor and omit the unwanted borders and the tile it beside the master image. Is it that? If so I think it be possible to catch it. at least I know that have done once one like that in win2000 by using Delphi

Lakva · Posted: Tue Jan 23, 2007 1:59 pm Post subject: