Struct GeoTransform

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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,
}

Expand description

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.

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§origin_x: f64§pixel_width: f64§skew_x: f64§origin_y: f64§skew_y: f64§pixel_height: f64

Implementations§

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impl GeoTransform

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

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

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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.

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

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

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

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

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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).

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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.

Trait Implementations§

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impl Clone for GeoTransform

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fn clone(&self) -> GeoTransform

Returns a duplicate of the value. Read more

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

Performs copy-assignment from source. Read more

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impl Debug for GeoTransform

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

Formats the value using the given formatter. Read more

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impl Copy for GeoTransform

Auto Trait Implementations§

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impl UnwindSafe for GeoTransform

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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