David The other thing to check is that you are using BNG in your code as well as in the window - ensure that the coordsys AND display coordsys of your map X object are set to BNG and that the raster is correctly registered. If add a raster layer the map always defaults to whatever coordinate system the raster layers is registered in - same as MI Pro. The effect is more pronounced the further you are away from the BNG origin - what you might be seeing is the map engine making a compromise between lat/long and BNG as you add features.
HTH Paul Crisp Syntegra Innovation Place Delta Bank Road Newcastle NE11 9DJ Tel 0191 461 4522 Fax 0191 460 1987 -----Original Message----- From: David Booth [mailto:[EMAIL PROTECTED] Sent: 27 November 2003 14:47 To: '[EMAIL PROTECTED]' Subject: MI-L MapX - raster background not drawing in the right place Hi Everyone, I'm developing an application using VB and MapX, which is showing strange behaviour whilst the users are digitizing. Basically, they add a line, the map refreshes itself and the raster basemap isn't displayed in the same place anymore. It's usually only a small offset, but I have seen it offset by about 1cm on the screen at times. Zooming out, then back in again fixes the problem. has anyone seen anything similar? More to the point, has anyone got any ideas on how to stop it happening? MapX 5, VB 6. Maps are seamless TIFF or ECW files, British National Grid projection. TIA Dave. File Ref: /DGS/DJB/Project Number/Filename --------------------------------------------- Dr. David Booth Principal GIS Officer Mott MacDonald Merseyside Information Service 325 Royal Liver Building Pier Head, Liverpool L3 1JH Tel (0151) 236 4343 (Reception) Tel 0151 243 1369 (Direct Line) Fax (0151) 236 2521 <file:///C:/Documents%20and%20Settings/DavidB/Application%20Data/Microsoft/S ignatures/www.merseyinfoserv.com> www.merseyinfoserv.com This document has been prepared for the titled project or named part thereof and should not be relied upon or used for any other project without an independent check being carried out as to its suitability and prior written authority of Mott MacDonald being obtained. Mott MacDonald accepts no responsibility or liability for the consequence of this document being used for a purpose other than the purposes for which it was commissioned. Any person using or relying on the document for such other purpose agrees, and will by such use or reliance be taken to confirm his agreement to indemnify Mott MacDonald for all loss or damage resulting therefrom. Mott MacDonald accepts no responsibility or liability for this document to any party other than the person by whom it was commissioned. ******************************************************************** This email may contain information which is privileged or confidential. If you are not the intended recipient of this email, please notify the sender immediately and delete it without reading, copying, storing, forwarding or disclosing its contents to any other person Thank you Check us out at http://www.syntegra.com ********************************************************************
