pub fn terrain_risk_from_elevation_map(
elevation: &[Vec<f64>],
config: &ElevationRiskConfig,
) -> RoboticsResult<Vec<Vec<TerrainRiskCell>>>Expand description
Build traversal-risk cells from an elevation grid.
The traversability channel receives local slope risk. The stability channel
receives local roughness risk from the largest neighboring height step.
Cells whose local step exceeds blocking_step_height, when configured, are
marked blocked.