[mapserver-users] Vector Data Formats

[Anzel, Phil - NRCS, Fort Collins, CO]

Charles,

A cautionary note on shapefiles: they use dBase III-format files for non-spatial data, this format does not officially support null data values (see for example the discussion at http://gis.stackexchange.com/questions/28411/how-to-have-a-nullable-field-included-in-a-shapefile-using-the-geotools-library). If your data schema allows for nulls you will either need to use some ad-hoc work-around or consider a different file format.

- Phil Anzel 
  USDA/NRCS contractor - Team Vistronix

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Today's Topics:

   1. Vector Data Formats (Kaminski Jr, Charles (RIS-ATL))
   2. Re: Vector Data Formats (Rahkonen Jukka (MML))


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Message: 1
Date: Fri, 14 Aug 2015 13:46:26 +0000
From: "Kaminski Jr, Charles (RIS-ATL)"
	<charles.kaminski at lexisnexis.com>
To: "mapserver-users at lists.osgeo.org"
	<mapserver-users at lists.osgeo.org>
Subject: [mapserver-users] Vector Data Formats
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	<7E32F2324944864FB2EAB8AAAD39BFFF8EC2DD49 at RISBCTMBXP003.risk.regn.net>
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Does anyone have any opinions on which vector data formats are preferred when serving up file-based data sources?


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Message: 2
Date: Fri, 14 Aug 2015 14:13:41 +0000
From: "Rahkonen Jukka (MML)" <jukka.rahkonen at maanmittauslaitos.fi>
To: "Kaminski Jr, Charles (RIS-ATL)"
	<charles.kaminski at lexisnexis.com>,	"mapserver-users at lists.osgeo.org"
	<mapserver-users at lists.osgeo.org>
Subject: Re: [mapserver-users] Vector Data Formats
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Hi,

My favourites are shapefiles and Spatialite. Shapefile format has filesize limits at 2/4 GB, but we have one very well working layer with +300 GB data in shapefiles which are used through ogrtileindex. Remember .qix indexing.  With attribute filters shapefiles may get slow because attributes of shapefiles can?t be indexed otherwise than by sorting with sortshp utility. If advanced filters are needed then a properly indexed Spatialite DB is my favourite format.

-Jukka Rahkonen-

Kaminski Jr, Charles wrote:

Does anyone have any opinions on which vector data formats are preferred when serving up file-based data sources?
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