Struct DemRaster 

pub struct DemRaster {
    pub bbox: BoundingBox,
    pub cols: usize,
    pub rows: usize,
    pub data: Vec<f32>,
    pub nodata: f32,
}

A raster grid of elevation values covering a bounding box.

Fields

bbox: BoundingBox

Geographic extent of the raster.

cols: usize

Number of columns.

rows: usize

Number of rows.

data: Vec<f32>

Row-major elevation samples [m]. Length = rows × cols.

nodata: f32

No-data sentinel value.

Implementations

impl DemRaster

pub fn zeros(bbox: BoundingBox, cols: usize, rows: usize) -> Self

Construct a zero-filled DEM raster.

pub fn cell_width_deg(&self) -> f64

Cell width in degrees.

pub fn cell_height_deg(&self) -> f64

Cell height in degrees.

pub fn sample(&self, pt: LonLat) -> Option<f32>

Sample elevation at a geographic position using bilinear interpolation.

Returns None if pt is outside the raster extent or resolves to a no-data cell.

pub fn min_elevation(&self) -> Option<f32>

Return the minimum elevation, ignoring no-data values.

pub fn max_elevation(&self) -> Option<f32>

Return the maximum elevation, ignoring no-data values.

pub fn to_ascii_grid(&self) -> String

Export to an ASCII Grid string (ESRI format).

Trait Implementations

impl Clone for DemRaster

fn clone(&self) -> DemRaster

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DemRaster

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.