Transform coefficients for transforming from (pixel, line) coordinates in raster space to (x, y) coordinates in projection space. More...

Public Member Functions
	GeoTransform ()=default
	Default constructor (identity transform)

	GeoTransform (double x0, double y0, double dx, double dy)
	Constructor. More...

	GeoTransform (const std::array< double, 6 > &coeffs)
	Construct from GDAL affine transform coefficients. More...

std::array< double, 6 >	getCoeffs () const
	Get equivalent GDAL affine transform coefficients. More...

double	transformX (int pixel) const

double	transformY (int line) const

bool	isIdentity () const
	True if the transform is identity. More...

Detailed Description

Transform coefficients for transforming from (pixel, line) coordinates in raster space to (x, y) coordinates in projection space.

Only separable, axis-aligned transforms are supported. That is, the transform must be able to be decomposed into

f(pixel) -> x

and

g(line) -> y

Constructor & Destructor Documentation

isce3::io::gdal::GeoTransform::GeoTransform	(	double	x0,
		double	y0,
		double	dx,
		double	dy
	)

inline

Constructor.

Parameters

[in]	x0	Left edge of the left-most pixel in the raster
[in]	y0	Upper edge of the upper-most line in the raster
[in]	dx	Pixel width
[in]	dy	Line height

isce3::io::gdal::GeoTransform::GeoTransform ( const std::array< double, 6 > & coeffs )

Construct from GDAL affine transform coefficients.

Only separable, axis-aligned transforms are supported, (

coeffs[2] == 0.

and

coeffs[4] == 0.

)

Exceptions

isce3::except::InvalidArgument if the supplied transform is unsupported

Parameters

[in] coeffs Affine transform coefficients such as those produced by GDALGetGeoTransform()

std::array< double, 6 > isce3::io::gdal::GeoTransform::getCoeffs ( ) const

Get equivalent GDAL affine transform coefficients.

bool isce3::io::gdal::GeoTransform::isIdentity ( ) const

inline

True if the transform is identity.

The documentation for this struct was generated from the following files: