Shape.File
Fields / Optional
format
The shape format to use.
The following default shape file formats are available:
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'Any'Automatic shape format
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'CSH'The CSH shape file format ('Compiled SHape', proprietary).
IANA media type: none
File extensions:.csh -
'JSON'The GeoJSON format (https://geojson.org).
IANA media type:
application/geo+json
File extensions:.json,.geojsonThird position number values (see '3.1.1. Position') are stored in Shape.Value.Vertical and fourth position number values are stored in Shape.Value.Custom.
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'SHP'The ESRI Shapefile format (https://support.esri.com/en/white-paper/279).
IANA media type:
application/vnd.shp
File extensions:.shpGiven a main file named
filename.shp, the following additional files are used:-
filename.shx
An index file that holds the offset and length of each shape record in the main file. If existent, it will be used to access the shape records unless it contains inconsistent offsets and lengths, in which case it will be ignored. If the index file is not existent or ignored, the main file structure is traversed to access the shape records. In the latter case, the main file must be packed, i.e. there must not be any undefined data between shape records or after the last shape record. -
filename.prj
A text file that contains the coordinate system specification of the shape. If existent and georef istrue, it will be read and its information will be accessible via Shape.Info.georef. -
filename.dbf
A dBASE table file that contains a row of metadata for each shape record. If existent and metadata istrueit will be read and its information will be accessible via Shape.Info.metadata. The binary data of record fields that represent character strings is assumed to be encoded with UTF-8.
Shape Z-coordinates are stored as Shape.Value.Vertical values and shape measure values are stored as Shape.Value.Custom.
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