Should be set to the general elevation or intensity range covered in the laser data to ensure that all values are represented by the complete color scheme.ĭefines the unit for Slope coloring: Degree or Percentage. This requires TerraPhoto to run.ĭefines the value range that is covered by the color scheme for Elevation and Intensity coloring. If on, the output image is attached as a raster reference. If on, gaps up to the given number of pixels are filled in places where there are no laser points inside a pixel area. RGB values for pixels that do not have an attribute value. Ĭolor depth of the output file for elevation or intensity coloring: Road intensity - distance along the road alignment element(s).įormat of the output file: Windows BMP, GeoTIFF or GeoTIFF + TFW.Ĭomputation of raster values based on directional sampling: This is only active if Color by is set to Elevation, Elevation difference, or Intensity hits. Highest - highest value of points inside the pixel area.Average - average value of points inside the pixel area.Lowest - smallest value of points inside the pixel area.This is only active if Color by is set to Road intensity. Level on which the road alignment vectors are located. This file can be stored from the Distance Coloring Scheme dialog. Pixels outside the polygons get black as a background value.Ĭolor scheme file for Distance values. You can select multiple source classes from the list that are then used in the Class field.ĭefines the area filled with values in the output raster files. Opens the Select classes dialog which contains the list of active classes in TerraScan. If Color by is set to Elevation difference, two classes have to be selected. Point class(es) to use for creating the raster file. The software creates a raster file for each selected rectangle.Ĭoloring attribute. Define a location and name for the raster file and click Save. If File naming is set to Enter name for each, the Export raster image dialog opens, a standard dialog for saving files.ĥ. You may define your own coloring scheme by using the Define button. This opens the Export Raster Images dialog:ģ. Select Export raster images command from the Tools pulldown menu. Select rectangles as raster file boundaries and (optional) text strings inside the boundaries.Ģ. Text strings placed inside the rectangles can be used as file names for the output files.ġ. The boundary of each raster file must be defined as a rectangle drawn into the CAD file. Slope - slope gradient based on normal vector computation.Road intensity - intensity of laser points computed by directional sampling along road alignment vectors.Point color - color values stored for laser points.Normal - direction of the normal vector relative to horizontal plane.Intensity footprint - average intensity of laser points within a footprint area overlapping the pixel.Intensity hits - laser point intensity.Elevation difference - elevation difference between laser points of two different classes.Distance - distance value based on the distance computation.The color of a pixel is determined using laser points whose coordinate values fall inside the pixel. The raster image can be created as Windows bitmap (.BMP) or GeoTIFF (.TIF). The source data is points referenced by a TerraScan project. Export raster image command generates raster images where pixel values are derived from laser point attributes.
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