Segment density

Dialog box

The Segment Density operation rasterizes a segment map. For each output pixel, the total length of all segment parts within the boundaries of the pixel is summed: this is the output value for the pixel. By using a mask, you can specify the elements of the input map that are to be used in the calculation.

Dialog box options:

Input segment map:

Select an input segment map. Open the list box and select the desired input map, or drag a map directly from the Catalog into this box. No special input map requirements.

Mask:

Type (multiple) search strings to find the segments in the input map that you want to use in the calculation. If all segments should be taken into account, accept the default mask *. For more information on masks, see Mask segments : functionality or How to use masks.

Output raster map:

Type a name for the output raster map that will contain the summed lengths of segments found in each output pixel.

Georeference:

Select an existing georeference or create a new georeference corners.

Domain:

Accept the default domain Value, or select an existing value domain, or create a new value domain.

Value range:

Accept the default value range for the output map, or specify the value range yourself.

Precision:

Accept the default precision for the output map, or specify the precision yourself.

Description:

Optionally, type a description for the output map. The description will appear in the status bar of the Main window when moving the mouse pointer over the map in a Catalog, and in the title bar of a map window when the output map is displayed. If no description is supplied, the output map will use its own definition as description.

When you click the Show button, the dependent output map will be defined, calculated and shown. When you click the Define button, the dependent output map will only be defined; if necessary, the map will be calculated later, for instance when the map is opened to be displayed.

See also: