Input File
Click Select Files to open the Select Input File panel. Click Add Files to browse and select one or more input data files. You can also use the Add Folder option to add all files in a directory.
Interpolation Method
This option allows you to choose between the Surface Analysis tool and another LiDAR gridding and analysis tool called the Tree Canopy Analysis.
Method Options
The Method Options vary according to the selected Interpolation Method. For the Surface Analysis tool, the following method options are available:
Select Standard Surface
- Ground - Filter for ground surface returns.
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Building - Filter for building surface returns.
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Roads - Filter for road surface returns.
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Water - Filter for water surface returns.
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Vegetation - Filter for vegetation surface returns.
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Low Vegetation - Filter for low vegetation surface returns.
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Medium Vegetation - Filter for medium vegetation surface returns.
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High Vegetation - Filter for high vegetation surface returns.
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Built Environment - Filter for built environment surface returns.
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Hard Surface - Filter for hard surface returns.
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Top Surface - Filter for the first return representing the top surface.
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Bottom surface - Filter for the last return representing the bottom surface.
LiDAR Filter settings are chosen to select the last return, representing the deepest penetration of the laser at all points.
Last return.
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Not Ground - Filter for all first returns, excluding ground classified returns.
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Not Vegetation - Filter for all last returns, excluding those classified as vegetation.
More Options
The More Options button appears depending on the interpolation method selected. Expand More Options to set the advanced parameters for the selected interpolation method.
Maximum Triangle Size
The maximum side length of a triangle. Use this to limit the size of the triangles created.
Clipping
Clipping options to constrain interpolation distance around source data points.
Cell Size
Specify the cell size for the output raster in the Cell Size box. The cell size defines the width and height of a raster cell in distance units. If the raster cells are square, both width and height are specified with the same value.
Output
Output File
Specify a name, location, and format for the output raster that you are creating. In the Output File box, enter the name you want to specify for your output file.