Contour tick options

Contour tick options define the position of ticks in relation to the contour lines, as well as the format of the ticks. To define contour tick options: Select “Ticks” in the Display contours dialog. Select Contour ticks command from the Options pulldown menu in the Display contours dialog. The Contour tick options dialog opens. Define…

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Thin points has two new methods: Grid 2D and Grid 3D

TerraScan version 016.021 introduced two new methods for the Thin points menu command and macro routine: Grid 2D and Grid 3D. This performs thinning by looking at a group of points inside one grid cell. If you choose ‘Grid 2D’ in ‘Method’, the thinning will keep one point in the source classes inside each grid…

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Geiger-Mode LIDAR Workflow Review

Geiger-mode lidar data is getting a lot of press lately as the “next big thing” in airborne data collection.  Unlike traditional lidar sensors, which we will call “linear-mode lidar” for convenience, Geiger-mode sensors use a different detection method in the receiver – the “Geiger-Mode” part – to enable much higher data collection altitudes and higher…

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The AirGon Sensor Package, Revision 3

When using imagery as a source of metric measurement, an up-front task that must be accomplished is determining the exact position (X, Y, Z) and orientation (Pitch, Yaw and Roll) of the camera at the precise time of each image exposure.  This seven tuple of data is termed the dynamic exterior orientation (DEO or often…

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Analyzing Swath Coverage in LP360

Quality control and assurance checks should be applicable for various acquisition scenarios so as to not limit the methods that a data provider may use to obtain usable data. In that regard, some providers use collection methods that require multiple overlapping swaths in order to adhere to the project requirements. In other cases, simple side…

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