Mark,
I do believe that box2d returns a polygon with 5 points.
Here is an example
My starting polygon
POLYGON((-81.507568359375 42.7631458668949,-81.4141845703125
43.6023850422415,-81.32080078125 44.441624217588,-79.6893310546875
44.6526402614971,-78.057861328125 44.8636563054061,-77.047119140625
44.3015041922804,-76.036376953125 43.7393520791547,-76.7889404296875
43.0448886007946,-77.54150390625 42.3504251224346,-78.310546875
42.3260577253395,-79.07958984375 42.3016903282445,-80.2935791015625
42.5324180975697,-81.507568359375 42.7631458668949))
Results of box2d
POLYGON((-81.507568359375 42.3016891479492,-81.507568359375
44.8636589050293,-76.036376953125 44.8636589050293,-76.036376953125
42.3016891479492,-81.507568359375 42.3016891479492))
Mark Cave-Ayland wrote:
JP de Miranda wrote:
Hi,
I'm trying to find out some information about the polygon returned by
box2d.
Namely, what is the order of the points? Are they always in the
format POLYGON((minx miny, minx maxy, maxx maxy, maxx miny, minx miny))?
I checked the postgis docs and it doesn't describe the returned polygon.
Thanks for your help.
Hi JP,
BOX2Ds are simply expressed as BOX2D(x1 y1, x2 y2) where x1, y1 is the
lower left corner and x2, y2 is upper right corner.
HTH,
Mark.
--
JP de Miranda
Supervisor, Web Services
First Base Solutions
www.firstbasesolutions.com
140 Renfrew Drive, Suite 100
Markham, Ontario, Canada
L3R 6B3
T: 905.477.3600 x302
F: 905.477.0892
[EMAIL PROTECTED]
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