Thanks Russell, This works great! When I took MapInfo back in college, the version we had had so many bugs and problems the focus seemed to get shifted to ESRI stuff. Now that I know how, it is much easier and more efficient in MapInfo. ArcGIS couldn't handle this job when I tried to create a grid for some contours in my thesis (I let it churn away over night and it crashed in the morning everytime). MapInfo just did it in under 5 minutes. I Wonder what the difference is in how they handle the process, but I'll leave that up to ESRI and MapInfo and the like.
I only wanted it to add a nice backdrop to some maps, but now that I see how well MapInfo handles it, maybe I'll revisit my thesis and try some real analysis....when I have the time that is. Thanks for the help. Don Mitchell -----Original Message----- From: Lawley, Russell S [mailto:[EMAIL PROTECTED] Sent: September 17, 2004 4:34 AM To: Hughes, Colleen / Don Mitchell Cc: MapInfo-L (E-mail) Subject: RE: MI-L Error when creating a grid. Hi, by chance i was looking at the source code for the Grid tools mbx last night, it is limited to to creating grids from equidistant rows and columns of points. to grid spatially variable points like contours/ spot heights you need to interpolate a grid. to do this you need to create a thematic grid map. All the Mapinfo gridding tools are under teh Map>>create thematic map menu....click on the option for a grid and away you go... As a user of VM/MiG, gridanalyst and Esri offerings for many many years now (as well as some VERY expensive oil sector kit) i can happily say that VM, GA (and Mig) are surprisingly good value and easy to use (despite teh odd bug), the arc suite less so, the only thing missing is a fault gridding routine (hint hint) If you want to do gridding 'for free' beyond what mapinfo can offer then the free GMT tools are worth a look..they take some setting up but can give �100k oil sector kit a run for its money...! http://gmt.soest.hawaii.edu/ hth r ********************************************************************* This e-mail message, and any files transmitted with it, are confidential and intended solely for the use of the addressee. However, the information contained in this e-mail may subsequently be subject to public disclosure under the Freedom of Information Act 2000 and, unless the information is legally exempt from disclosure, the confidentiality of this e-mail and your reply cannot be guaranteed. If this message was not addressed to you, you have received it in error and any copying, distribution or other use of any part of it is strictly prohibited. Any views or opinions presented are solely those of the sender and do not necessarily represent those of the British Geological Survey. The security of e-mail communication cannot be guaranteed and the BGS accepts no liability for claims arising as a result of the use of this medium to transmit messages from or to the BGS. http://www.bgs.ac.uk ********************************************************************* --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Message number: 13401
