On 2016-04-25 6:49 PM, Simon Mercier wrote:
really not sure CSVT file is supported by ogr, but you can easily define
field type in VRT
<Field name="precipitation_mm" src="prec_mm" type="Real"/>
<Field name="field_1" src="field_1" type="String" width="100" />
Simon is right, very nice, specifying the field name to classify in the
vrt works, for a csv without field names:
<OGRVRTDataSource>
<OGRVRTLayer name="occurrence">
<SrcDataSource relativeToVRT="1">CSV:occurrence.txt</SrcDataSource>
<GeometryType>wkbPoint</GeometryType>
<LayerSRS>WGS84</LayerSRS>
<GeometryField encoding="PointFromColumns" x="field_37"
y="field_38"/>
<Field name="name" src="field_51" type="String" width="100"/>
</OGRVRTLayer>
</OGRVRTDataSource>
LAYER
NAME "occurrence"
TYPE POINT
STATUS ON
CONNECTIONTYPE OGR
CONNECTION "../occurrence.vrt"
CLASSITEM "name"
CLASS
NAME "Occurrences"
EXPRESSION "ttt"
STYLE
SYMBOL 7
SIZE 10
COLOR 0 0 0
END
END
END # Layer
-jeff
--
Jeff McKenna
MapServer Consulting and Training Services
http://www.gatewaygeomatics.com/
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