'[postgis-users] Difference in area calculation pg vs. ora'

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List:       postgis-users
Subject:    [postgis-users] Difference in area calculation pg vs. ora
From:       "Gheorghiu, Mihai" <mgheorghiu () chpmail ! com>
Date:       2011-08-22 18:43:25
Message-ID: 193E306BA13EA242AEF4BE9E684E1F42024254840C () CHP-MS03 ! corp ! chpinfo ! com
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I loaded shapes from a .shp file in both oracle and pgis.
I compared them in OpenJump and no differences were found between the sha=
pes in the two systems.
However when  calculate the areas (ST_Area & SDO_AREA) and I compare them=
 shape by shape I encounter some significant differences (>5%).
Has anyone experienced that?

Thank you very much.

Michael

The information contained in this transmission is to be considered CONFID=
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the use of the Individual or Entity named above.  If the reader of this m=
essage is not the Intended Recipient, you are hereby notified that any di=
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mmediately.  Thank You.
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class=WordSection1><p class=MsoNormal>I loaded shapes from a .shp file in both oracle \
and pgis.<o:p></o:p></p><p class=MsoNormal>I compared them in OpenJump and no \
differences were found between the shapes in the two systems.<o:p></o:p></p><p \
class=MsoNormal>However when&nbsp; calculate the areas (ST_Area &amp; SDO_AREA) and I \
compare them shape by shape I encounter some significant differences \
(&gt;5%).<o:p></o:p></p><p class=MsoNormal>Has anyone experienced \
that?<o:p></o:p></p><p class=MsoNormal><o:p>&nbsp;</o:p></p><p class=MsoNormal>Thank \
you very much.<o:p></o:p></p><p class=MsoNormal><o:p>&nbsp;</o:p></p><p \
class=MsoNormal>Michael<o:p></o:p></p></div></body></html>

<BR>
The information contained in this transmission is to be considered CONFIDENTIAL and \
PROPRIETARY to Consortium Health Plans, Inc. and intended for the use of the \
Individual or Entity named above.  If the reader of this message is not the Intended \
Recipient, you are hereby notified that any dissemination, distribution, or copying \
of this communication is Strictly Prohibited.  If you have received this transmission \
in error, please notify us immediately by telephone at 410-772-2900 or return email \
to sender immediately.  Thank You.

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