TerraPhoto Create Thumbnails

Create thumbnails command starts the creation of thumbnails for defined resolution ratios. The tool creates GeoTiffs which are stored in the /TEMP directory of the mission. The default file name is thumb<ratio>_<image name>.tif. Thumbnails can speed up the image display for different TerraPhoto processes: •Define color corrections display •Active full view in tie point mode…

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Tips for Classifying Cliffs and Similar Vertical Features

TerraScan’s ground classification algorithm will always restrict how close point classifications can get to the end of a vertical face based upon the Terrain Angle. One could make this angle near vertical, i.e. 88°, in order to minimize the distance between the ground classified points and the edge of the feature. See TerraScan Ground Parameters. The newer…

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Error Writing Global Parameter Sets File (14761)

Symptom: Receive an error message, “Error Writing Global Parameter Sets File (14761): Apply Rail Extractor Parameter Set Error(14759)” while trying to save the advanced Rail Parameters Point Cloud Task. Probable Resolution: This error message generally occurs when one of the specified parameters is not valid. Verify the entered values to continue.  

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Tips on using Draw Sign Visibility

The TerraScan Road toolset includes the ability to Draw Sign Visibility. The Draw Sign Visibility tool determines from what points a target object, such as a traffic sign, traffic light, advertisement plate, etc., are visible. In other words, the tool also finds points on objects that may obstruct the sight to a target object. The…

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Memory Usage Setting in TerraPhoto

In TerraPhoto Settings, the Memory usage category defines how much memory the application can use for the image cache. Image caching is done since the combined size of reference images is often much larger than the amount of available memory. TerraPhoto keeps recently used raster images in memory to be able to display those images…

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