Hi Ian! Maybe it's a silly notion, but I am thinking negative buffers here. If you are lucky in that the buffers have been created with an equal distance from their mother object, a negative buffer of a slightly smaller measure will create a very narrow region object which, given a suitable line width depending on scale at least visually could pass for a polyline object. The narrow region can of course be converted to a closed polyline which then perhaps can be weeded down to a single polyline.
Hälsning / Best regards Mats.E ________________________ FB Engineering AB Södra Förstadsgatan 26 211 43 Malmö Tel: 040-660 25 50 Mobil: 0705-27 60 27 Fax: 040-660 25 99 [EMAIL PROTECTED] www.fbe.se "Ian Hull" <[EMAIL PROTECTED]> 2005-03-03 11:56 Till MapInfo-L@lists.directionsmag.com Kopia Ärende MI-L Ends of buffer Hi All, I'm trying to write a Mapbasic program (V5.5) to identify the two end points of a series of buffers (around polylines - and no the polylines are no longer available!). Some of the buffers are U shaped so max/min functions return the wrong results. I'm thinking along the lines of re-creating the original polylines or determining the maximum internal distance? Has anyone got any other suggestions or better yet a tool that does the job! Regards, Ian Hull Greater Manchester Transportation Unit Salisbury House Granby Row Manchester M1 7AH Internal Tel: 815 2059 Tel: 0161 455 2059 Fax: 0161 455 2071 E-mail: [EMAIL PROTECTED] Website: http://www.agma.gov.uk/Units/TransportUnit.htm ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. Please contact [EMAIL PROTECTED] with any queries ********************************************************************** --------------------------------------------------------------------- List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Message number: 15505
