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 parameters (Set, Get): INPUT_POINTCLOUD, INPUT_RASTER, KEEP_NON_OVERLAPPING_POINTS, OUTPUT_POINTCLOUD_URI, POINT_COLOR_OUTSIDE_RASTER

Output parameters (Get only): OUTPUT_POINTCLOUD

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_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 parameter 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_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).