This task reprojects the records in a vector from one coordinate system to another.

Example


This example reprojects a shapefile of U.S. counties to the same coordinate system as a raster so that they can be displayed in the same view.

; Start the application
e = ENVI()
 
; Open a shapefile of counties
VectorFile = Filepath('counties.shp', $
  Subdir=['classic', 'data', 'vector'], $
  Root_Dir=e.Root_Dir)
Vector = e.OpenVector(VectorFile)
 
; Open an input raster
RasterFile = Filepath('bhtmref.img', $
  Subdir=['classic', 'data'], $
  Root_Dir=e.Root_Dir)
Raster = e.OpenRaster(RasterFile)
 
; Get the coordinate system of the raster
CoordSys = ENVICoordSys( $
  COORD_SYS_CODE=Raster.SPATIALREF.COORD_SYS_CODE)
 
; Get the task from the catalog of ENVITasks
Task = ENVITask('ReprojectVector')
 
; Define inputs
Task.INPUT_VECTOR = Vector
Task.COORD_SYS = CoordSys
 
; Run the task
Task.Execute
 
; Display the reprojected vector over the raster
View = e.GetView()
RasterLayer = View.CreateLayer(Raster)
VectorLayer = View.CreateLayer(Task.OUTPUT_VECTOR)
View.Zoom, 0.14

Syntax


Result = ENVITask('ReprojectVector')

Input parameters (Set, Get): INPUT_VECTOR, COORD_SYS, OUTPUT_VECTOR_URI

Output parameters (Get only): OUTPUT_VECTOR

Parameters marked as "Set" are those that you can set to specific values. You can also retrieve their current values any time. Parameters marked as "Get" are those whose values you can retrieve but not set.

Input Parameters


INPUT_VECTOR (required)

Specify the input vector to be reprojected.

COORD_SYS (required)

Specify the output coordinate system.

OUTPUT_VECTOR_URI (optional)

Specify a string with the fully qualified path and filename for OUTPUT_VECTOR.

Output Parameters


OUTPUT_VECTOR

This is a reference to the output vector.

Methods


Execute

Parameter

ParameterNames

Properties


DESCRIPTION

DISPLAY_NAME

NAME

REVISION

TAGS

Version History


ENVI 5.5. 3

Introduced

See Also


ENVITask, ENVICoordSys, ENVIVector, ReprojectRaster Task