Folks, It feels like Friday but it is NOT Friday in Toronto! Sorry for sending this note late. Something hit my in-pile with a big "ASAP" stamp on it and put every thing on hold for few days. I posted this question on both MapInfo (mapinfo.com) and Geosoft (geosoft.com) users net. Thanks to Chris Clark, Martin Higham, Ed Campbell, Peter Walker, Jacques Beaurain (hope I didn't forget anyone's name) for guiding me to utilities and programs which read SEGY format files. For those of you who are interested, here is a summary of all responses. G'day every one, -mansour... ========================================== 1. Chris Clarke ([EMAIL PROTECTED]) wrote: There is a free SEGY Viewer available from Encom Technology (www.encom.com.au). I'm not sure if this will let you save off as raster but you can certainly print from it. ========================================== 2. Martin Higham (www.encom.com.au) wrote: You'll likely need specialist seismic data processing software for this. We have a free SEGY viewer (www.encom.com.au), though I'm not sure whether it saves bitmaps etc. as the output. Alternatively you could use ER Mapper to do this, and then maybe export as dxf. ========================================== 3. Ed Campbell ([EMAIL PROTECTED] ) wrote: You might try this package Visual_SUNT display at http://www.wgeosoft.ch/visual2.html I don't know how good it is, just came across the web-page. ========================================== 4. Peter Walker ([EMAIL PROTECTED]) wrote: Here is something that was circulated previously. It may help {I'm not sure how closely related the SEG-2 and SEG-Y formats may be but I've written a small program which converts Surfer GRD files to a SEG-Y file containing traces for each vertical line. It will show you how to write the EBCDIC header, the binary header and the trace headers as well as the trace data. I used a few resources I could find on the 'net and it is just a preliminary quick-and-dirty solution, therefor the source code comments may not be sufficient. I also know that the SEG-2 format is described on SEG's site. Also included is a MSWord document describing the SEG-Y format. Take note of the Endian and IBM floating point issues which I handled in the program. Hope it helps. Regards, Jacques Beaurain AATS Room 908 Tel: +27 11 6383007 Cel: 082 322 7530} ========================================== 5. Jacques Beaurain ([EMAIL PROTECTED]) wrote: Included, is some code (not extremely well documented) I pasted together from various resources on the 'net. It takes five binary files which describes a 3D segy file and generates a SEGY file from it. It may or may not be helpful to you. Note the following: SEGY format: 3200 byte EBCDIC header 400 byte binary header : see header files for structure each trace has a 240 byte header. Be careful for the Little- and Big-endian conversions etc.P.S. I used gcc to compile but any other C compiler will probably also work. [I can forward the attachment if you are interested! -mansour] ========================================== ---------------------------------------------------------------------- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
