approx2

approx2 performs interpolation on data along the first and second dimensions. More...

Functions
AFAPI array	approx2 (const array &in, const array &pos0, const array &pos1, const interpType method=AF_INTERP_LINEAR, const float offGrid=0.0f)
	C++ Interface for data interpolation on two dimensional signals. More...
AFAPI af_err	af_approx2 (af_array *out, const af_array in, const af_array pos0, const af_array pos1, const af_interp_type method, const float offGrid)
	C Interface for signals interpolation on two dimensional signals. More...

Detailed Description

approx2 performs interpolation on data along the first and second dimensions.

It has three options for the type of interpolation to perform:

• Nearest neighbor - AF_INTERP_NEAREST
• Linear interpolation - AF_INTERP_LINEAR
• Bilinear interpolation - AF_INTERP_BILINEAR
• Cubic interpolation - AF_INTERP_CUBIC

Function Documentation

AFAPI af_err af_approx2	(	af_array *	out,
		const af_array	in,
		const af_array	pos0,
		const af_array	pos1,
		const af_interp_type	method,
		const float	offGrid
	)

C Interface for signals interpolation on two dimensional signals.

Parameters

[out]	out	is the array with interpolated values
[in]	in	is the input array
[in]	pos0	array contains the interpolation locations for first dimension
[in]	pos1	array contains the interpolation locations for second dimension
[in]	method	is the interpolation type, it can take one of the values defined by the enum af_interp_type
[in]	offGrid	is the value that will set in the output array when certain index is out of bounds

Returns

AF_SUCCESS if the interpolation operation is successful, otherwise an appropriate error code is returned.

AFAPI array af::approx2	(	const array &	in,
		const array &	pos0,
		const array &	pos1,
		const interpType	method = AF_INTERP_LINEAR,
		const float	offGrid = 0.0f
	)

C++ Interface for data interpolation on two dimensional signals.

Parameters

[in]	in	is the input array
[in]	pos0	array contains the interpolation locations for first dimension
[in]	pos1	array contains the interpolation locations for second dimension
[in]	method	is the interpolation type, it can take one of the values defined by the enum af_interp_type
[in]	offGrid	is the value that will set in the output array when certain index is out of bounds

Returns

the array with interpolated values