Download the free VM 3.1 (upgrades a 3.0 to 3.1) from http://www.mapinfo.com/verticalmapper. No need to to running version 3.0 anymore. I don't understand your problem, a VM grid is always rectangular, but you can have some NULL values created when interpolating, so the grid won't look like it rectangular. Depending on your display settings in the interpolation dialog you will get a grid that is larger than area covered by your points. Use a convex hull to trim your grid then. If you still have a problem after upgrading to 3.1 or/and trimming send me the vector point file and list your interpolation settings. And I will give it a try.
Mvh. | Regards Jakob Lanstorp Senior Consultant Geographical Information & IT COWI A/S Odensevej 95 DK-5260 Odense S Tel +45 63 11 49 00 Direct +45 63 11 48 62 Fax +45 63 11 49 49 Email [EMAIL PROTECTED] http://www.cowi.dk -----Message d'origine----- De : David Hilpipre Envoy� : mardi 19 octobre 2004 12:46 � : '[EMAIL PROTECTED]' Objet : VM interpolation problem Hello, I have a problem interpolating points data (I use Simple Natural Neighbouring ; I might agree it's not the most suitable method in my case but this is an other matter). To try to explain the problem simply, let's say that my points are layed out as follow : x x x x x x x x x x x x So what I should expext, as a result, is a rectangular grid. Well, this is what I get : _____________________ I I I x x x I I I \ I \ I \x x x I / I / I / I I x x x I I I I I I x x x I ------------------------------------------------ I just can't figure out why this shape ! I've even try to add an extra point where the "hole" is and that point is simply ignored ! Of course, my points are not layed out so geometrically in the case i'm studying, but there are only 10 points (soil analyses), the dispersion is quite homogeneous and there is no clustering effects. This is roughly how my points are really layed out : X X X X X X X X X X As anyone an idea why this occurs ? I'm using VM 3.0 with Mapinfo 7.5. Thanks for any help, hints or clues that anyone could give David HILPIPRE ARCADE Conseil 27000 EVREUX FRANCE --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Message number: 13766
