Struct GeoTransform 

pub struct GeoTransform {
    pub origin_x: f64,
    pub pixel_width: f64,
    pub skew_x: f64,
    pub origin_y: f64,
    pub skew_y: f64,
    pub pixel_height: f64,
}

An affine geo-transform mapping pixel (col, row) to map (x, y).

Follows the GDAL convention:

x = origin_x + col * pixel_width + row * skew_x
y = origin_y + col * skew_y     + row * pixel_height

For north-up images, skew_x and skew_y are 0 and pixel_height is negative.

Fields

origin_x: f64

pixel_width: f64

skew_x: f64

origin_y: f64

skew_y: f64

pixel_height: f64

Implementations

impl GeoTransform

pub fn from_tiepoint_and_scale( tiepoint: &[f64; 6], pixel_scale: &[f64; 3], ) -> Self

Build from ModelTiepoint (tag 33922) and ModelPixelScale (tag 33550).

pub fn from_tiepoint_and_scale_with_raster_type( tiepoint: &[f64; 6], pixel_scale: &[f64; 3], raster_type: RasterType, ) -> Self

Build from ModelTiepoint and ModelPixelScale using the GeoTIFF raster type.

The returned transform is normalized to a corner-based affine transform so bounds and pixel-space math stay consistent for both PixelIsArea and PixelIsPoint rasters.

pub fn from_transformation_matrix(matrix: &[f64; 16]) -> Self

Build from a 4x4 ModelTransformation matrix (tag 34264), row-major.

pub fn from_origin_and_pixel_size( origin_x: f64, origin_y: f64, pixel_width: f64, pixel_height: f64, ) -> Self

Create from origin + pixel size (north-up, no skew).

pub fn pixel_to_geo(&self, col: f64, row: f64) -> (f64, f64)

Convert pixel coordinates (col, row) to map coordinates (x, y).

pub fn geo_to_pixel(&self, x: f64, y: f64) -> Option<(f64, f64)>

Convert map coordinates (x, y) to pixel coordinates (col, row).

Returns None if the transform is degenerate (zero determinant).

pub fn bounds(&self, width: u32, height: u32) -> [f64; 4]

Returns the geographic bounds (min_x, min_y, max_x, max_y) for an image of the given width and height.

pub fn to_tiepoint_and_scale(&self) -> Option<([f64; 6], [f64; 3])>

Serialize to a tiepoint + pixel_scale pair (for north-up, no-skew images). Returns None if there is skew (use to_transformation_matrix instead).

pub fn to_transformation_matrix(&self) -> [f64; 16]

Serialize to a 4x4 transformation matrix (row-major).

Trait Implementations

impl Clone for GeoTransform

fn clone(&self) -> GeoTransform

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GeoTransform

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

Formats the value using the given formatter.

impl Copy for GeoTransform