Requires an LP360 Geospatial Advanced, or a BIT (Business Intelligence Tools) add-on license.
For each of the selected Surface Precision Maps (Global, Interswath, and Intraswath) in the Surface Precision Estimator tool, the Surface Precision Estimator Advanced Settings dialog can be used to adjust the parameters for colorization of the Colorized by Accuracy Class rasters, and the filtering of cells based on their geometric or shape descriptors.
Colorization
Designate color for ranges of surface precision values using intervals. It is best to divide the range of surface precision values into meaningful intervals. For example:
| Interval (mm) | Description |
|---|---|
| 0.00–0.05 | Very smooth |
| 0.05–0.10 | Smooth |
| 0.10–0.20 | Moderate variation |
| 0.20–0.50 | Rough |
| > 0.50 | Very rough |
Use a color gradient that intuitively reflects increasing variation. A common scheme:
| Interval | Color | Meaning |
|---|---|---|
| 0.00–0.05 | Dark Blue | Very smooth |
| 0.05–0.10 | Light Blue | Smooth |
| 0.10–0.20 | Green | Moderate |
| 0.20–0.50 | Yellow | Rough |
| > 0.50 | Red | Very rough |
This color ramp helps users quickly identify areas of concern or interest.
| Note - To change the color associated with a particular range, double click the color box in the Color column and select a different color in the color selection dialog. |
Modulate source differences by intensity
This option is used to specify the intensity of the LAS point with the highest elevation to use in the cell. It helps in visualizing features in the LIDAR data.
-
Range: The range for this option is 0-100%.
- 0%: Will not show any features.
- 100%: Shows all features with the highest level of color.
- Effect: As the color is applied, the actual features in the area might be lost. This option helps to correct this issue by modulating the intensity of the source differences.
For example, if you set the modulation to 75%, it will show features with a high level of color but not as intense as 100%, thus balancing the visibility of features in the overlapping region.
Cells Filtering
- Linearity (0-1): Measures how closely a set of points aligns along a straight line.
- Planarity (0-1): Indicates how well the points fit a plane.
- Sphericity (0-1): Reflects how closely the shape resembles a sphere.
- Surface variation (0-1): Captures the degree of roughness or deviation in surface geometry.
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