ENVIVector

This is a reference to a vector object. For details on creating an ENVIVector, see ENVI::OpenVector.

Example

The following code sample opens a shapefile and prints the properties of the created ENVIVector.

; Launch the application

e = ENVI()

; Create an ENVIVector from the shapefile data

file = FILEPATH('states.shp', $

SUBDIRECTORY=['examples', 'data'])

vector = e.OpenVector(file)

; Print the ENVIVector property values

PRINT, vector

Syntax

Result = ENVIVector([, Data] [, Keywords=value] [, Properties=value])

Return Value

This function returns a reference to an ENVIVector object.

Arguments

Data

A supported vector format such as a shapefile, GeoPackage file, or ENVI Vector File (.evf).

Methods

Dehydrate

Hydrate

Properties

Properties marked as (Get) can be retrieved, but not set.

AUXILIARY_URI (Get)

This property retrieves a string array containing the URIs for the ENVIVector's associated files. If there are no associated files, !NULL is returned.

COORD_SYS (Get)

This property retrieves a reference to the ENVICoordSys associated with the vector.

DATA_RANGE (Get)

This property retrieves a four-element array containing the boundary of the entire data space, in the form [x_min, y_min, x_max, y_max]. The data space may contain a combination of rasters and vectors.

The DATA_RANGE values are taken directly from the data, and therefore use the coordinate system of the dataset.

NRECORDS (Get)

The number of records contained in the vector.

RECORD_TYPE (Get)

A string specifying the type of the vector record. The values are:

RECORD_TYPE Strings
'MultiPoint'
'MultiPointM'
'MultiPointZ'
'Point'
'PointM'
'PointZ'
'Polygon'
'PolygonM'
'PolygonZ'
'Polyline'
'PolylineM'
'PolylineZ'

URI (Get)

A string that is a fully-qualified vector filepath.

Version History

ENVI 5	Introduced
ENVI 5.3. 1	Added Dehydrate method
ENVI 5.4	Added Hydrate method
ENVI 6.2	Added NRECORDS property