Thank you for your quick answer.
When I first read your mail, I thought this was THE solution we needed. However, I changed the proximity to 0.0001, and then to the smallest value allowed 0.000001 but it had no effect on our problem.
After a few tests, it seems that the problem comes from our Coordinate System. It was created from a imported file, using Tie Points to reference the map with UTM / LatLon coordinates. So, now, when we open the map, 3 types of coordinates appears in the Status Bar : LatLon, UTM coordinates, and original coordinates from the imported file.
The boundaries of these coordinates are : (-10.66,48.88) for X and (-25.86,4.88) for Y. These coordinates are useless and getting rid of them might solve our problem. However, I don't know how to do....
I hope you can help me on this one too....
Thanks.
Pierre Le Cointe
Student trainee at CRPG
Message du 12/08/03 12:08
De : Ilwis Support <[EMAIL PROTECTED]>
A : Ilwis list <[EMAIL PROTECTED]>
Copie � :
Objet : Re: (ilwis-list) Problem with the Segment editor
Dear Pierre,
The distance where ILWIS recognises the selection of a segment is called the proximity. It is specified in the .mps object definition file, the units are in meters.
If you click within the proximity of a segment the value of the segment will be shown (in a map window) or it will be selected (in the segment editor).
It might be that in your case there is a problem with this proximity. First it can be that you are using a map with a LatLon coordinate system. The distances are then calculated in degrees. A proximity of 1 will then mean 1 degree, instead of 1 meter, so ILWIS will not know with segment to select. It may also be that there was another reason why the proximity is stored wrong in the .mps file. To correct both situations, you may change the value in the file. To do this make a backup copy of you data and open the .mps file in notepad. Go to the [BaseMap] section and change the value of the "Proximity" to something small, like 0.0001
Hope this helps!
Regards,
Boudewijn van Leeuwen
ILWIS Support Officer
