ColorPointCloud Task

This task colorizes a point cloud using raster data. Each point of the point cloud receives the RGB value of the raster pixel that has the same location.

Example

; Start the application

e = ENVI()

; Select input data

inputPointCloudURI = Filepath('Avon.laz', $

Subdir=['data','lidar'], Root_Dir=e.Root_Dir)

inputPointCloud = e.OpenPointCloud(inputPointCloudURI)

inputRasterURI = Filepath('Avon.dat', $

  Subdir=['data'], Root_Dir=e.Root_Dir)

inputRaster = e.OpenRaster(inputRasterURI)

; Get the task from the catalog of ENVITasks

Task = ENVITask('ColorPointCloud')

; Define the inputs of the task

Task.INPUT_POINTCLOUD = inputPointCloud

Task.INPUT_RASTER = inputRaster

Task.OUTPUT_POINTCLOUD_URI = e.GetTemporaryFilename('las')

; Run the task

Task.Execute

; Display the point clouds in the ENVI LiDAR viewer

Viewer = ENVIPointCloudViewer()

Viewer.Display, Task.OUTPUT_POINTCLOUD

Syntax

Result = ENVITask('ColorPointCloud')

Input properties (Set, Get): INPUT_POINTCLOUD, INPUT_RASTER, KEEP_NON_OVERLAPPING_POINTS, OUTPUT_POINTCLOUD_URI, POINT_COLOR_OUTSIDE_RASTER

Output properties (Get only): OUTPUT_POINTCLOUD

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

Methods

This task inherits the following methods from ENVITask:

Properties

This task inherits the following properties from ENVITask:

COMMUTE_ON_DOWNSAMPLE

INPUT_POINTCLOUD (required)

Specify a point cloud to colorize.

INPUT_RASTER (required)

Specify the raster to use to color the point cloud. The input raster must have spatial reference information.

KEEP_NON_OVERLAPPING_POINTS (required)

Set this property to false to remove points outside the raster footprint when creating the output point cloud. If set to true, the points are colored according to the POINT_COLOR_OUTSIDE_RASTER parameter. The default is true.

OUTPUT_POINTCLOUD

This is a reference to the output point cloud.

OUTPUT_POINTCLOUD_URI (optional)

Specify the URI for the output of the colored point cloud file.

POINT_COLOR_OUTSIDE_RASTER (optional)

Specify the color of the points that are outside of the raster footprint as a byte array of dimension 3 describing the intensity of each R, G and B channels. The default is [0, 0, 0] (black).

Version History

ENVI 5.4

Introduced

ENVI 5.5

Replaced INPUT_POINTCLOUD_URI with INPUT_POINTCLOUD

Removed SPATIALREF Property

API Version

4.2