RE: [OpenMap Users] Superfluous conversions when writing Shapefiles

From: Ian Batley <ianbatley_at_mypostbox.com>
Date: Tue, 23 May 2006 19:57:42 +1000

Hi Peter

Depending upon your requirements, maybe using FME from SAFE software might
be a better option for you. You can download a trial version.

Ian
--------------------
Ian Batley
ianbatley_at_mypostbox.com
Wrenfeld Pty Ltd
PO Box 1089, Belconnen ACT Australia 2616
Ph: +61 (0417) 211 411

>> -----Original Message-----
>> From: owner-openmap-users_at_bbn.com
>> [mailto:owner-openmap-users_at_bbn.com]On Behalf Of Peter Slizik
>> Sent: Tuesday, 23 May 2006 7:09 PM
>> To: openmap-users_at_bbn.com
>> Cc: openmap_at_bbn.com
>> Subject: [OpenMap Users] Superfluous conversions when writing Shapefiles
>>
>>
>>
>>
>> Dear OpenMappers,
>>
>> I'm an absolute newbie in the field of GISes, so please
>> apologize me, if this
>> question is a bit trivial.
>>
>> I'm developing a simple mapping application and I need to write
>> ESRI/Shapefile
>> files from within a Java application. There being no single-purpose Java
>> Shapefile library, I downloaded the OpenMap package. Soon I realized it
>> requires the input data in radians/degrees. I consider it rather
>> troublesome,
>> as my input data are in meters and the outputs are also required
>> in meters.
>> Thus the double conversion to and back from radians is
>> superflous and will
>> result in loss of precision (converting from integers to floats
>> and back to
>> int's). Moreover, I don't want to mess with projections, as my
>> data are in
>> somewhat queer coordinate system. Is there a way to avoid these
>> unnecessary
>> conversions?
>>
>> Thank you for your advice,
>>
>> -- Peter Slizik
>>
>>
>> --
>> There's no trick to being a humorist when you have the whole government
>> working for you. --Will Rogers
>>
>> --
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Received on Tue May 23 2006 - 05:57:32 EDT

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