GM_LidarQueryFilter_t Class

Default Constructor

Maximum color "distance" to search when using mColorsToKeep

Optional list of colors to keep (NULL to not filter by color)

Max density to keep in points / m^2

Min density to keep in points / m^2

Should we filter by density range?

Maximum elevation to keep (meters). Use GM_INVALID_ELEV_VALUE for none.

Minimum elevation to keep (meters). Use GM_INVALID_ELEV_VALUE for none.

Mask of filter flags to check. Default of 0 doesn't check any flags.

Maximum height above ground to keep (meters). Use GM_INVALID_ELEV_VALUE for none.

Minimum height above ground to keep (meters). Use GM_INVALID_ELEV_VALUE for none.

Maximum intensity to keep

Minimum intensity to keep

Keep first returns if the return height delta is 0 (use for files with missing last returns - Bug 15754)

Minimum valid NDVI value (Range: [-1,+1])

Maximum valid NDVI value (Range: [-1,+1])

Should we check the NDVI (requires NIR channel)?

Minimum valid NDWI value (Range: [-1,+1])

Maximum valid NDWI value (Range: [-1,+1])

Should we check the NDWI (requires NIR channel)?

List of point source IDs to keep (NULL to not filter by point source ID)

Maximum gradient angle in degrees between first and last point to filter out if return height outside of allowed range.

Maximum return height delta to keep (meters)

If filtering to a return height range, minimum number of returns to have to keep and ignore the max angle

Minimum return height delta to keep (meters)

List of return masks to keep

Maximum scan angle (degrees) to keep

Minimum scan angle (degrees) to keep

Is the scan angle range filter valid?

Returns true if the given class is enabled in a Lidar class filter

Sets a class enabled or disabled in a Lidar class filter

Classification filter (zero'd out means all enabled)