You probably know this issue. Directly in Mapinfo, you could do a simple thing set your layer editable on Select your polygon Convert to polyline temporarely in the layer control check the show the line direction an arrow will show you if the polygon is clockwise or anticlockwise
Patrick Palmier Lille M�tropole Communaut� Urbaine Mission Plan de D�placements Urbains 1, rue du Ballon BP749 59034 LILLE cedex FRANCE T�l: 33 / 03 20 21 31 78 Fax: 33 /03 20 21 30 14 mailto:[EMAIL PROTECTED] http://www.cudl-lille.fr/FR/Accessibilite/PDU/index.htm ----- Original Message ----- From: "Jacques Paris" <[EMAIL PROTECTED]> To: "MIL" <[EMAIL PROTECTED]> Sent: Monday, January 21, 2002 10:11 PM Subject: MI-L MB: polygon drawing direction. > > > I would like to learn about a simple way to find if a polygon was drawn > clockwise or counter clockwise. I would rather not go through lengthy > calculations (someone mentioned some sum of angles) but I will be thankful > for any answer. > > Jacques Paris > e-mail [EMAIL PROTECTED] > MapBasic-MapInfo support http://www.paris-pc-gis.com > > > > > _______________________________________________________________________ > List hosting provided by Directions Magazine | www.directionsmag.com | > To unsubscribe, send e-mail to [EMAIL PROTECTED] and > put "unsubscribe MapInfo-L" in the message body. _______________________________________________________________________ List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MapInfo-L" in the message body.
