Oracle Spatial - How to identify if a line crosses itself

From: Eriovaldo Andrietta <ecandrietta_at_gmail.com>
Date: Sun, 13 Oct 2013 07:06:41 -0300
Message-ID: <CAJdDhaPL6natN0fjxDgKSN5pByjW1_hwpKe0ORN8AFFjOwocWQ_at_mail.gmail.com>

Hello,
Is there a way to identify if a line (gtype = 2002) crosses itself ?

I know that when the geometry is a polygon (gtype=2003) Oracle spatial generates the error: ORA-13349.

But it does not occurs when it is a line (2002), so I tought to generate a polygon, getting the first point of the line and to consider it as the last in order to generate a polygon...

It is not a good way.
Somebody has Any experience checking it ?

Regards
Eriovaldo

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Received on Sun Oct 13 2013 - 12:06:41 CEST