interpolate2d.hpp File Reference

Header file for 2D interpolation methods. More...

Go to the source code of this file.

Classes
class	hmap::NaturalNeighborInterpolator

Namespaces
namespace	hmap
namespace	hmap::gpu

Enumerations
enum	hmap::InterpolationMethod2D : int {   hmap::ITP2D_DELAUNAY , hmap::ITP2D_NEAREST , hmap::ITP2D_IDW , hmap::ITP2D_GAUSSIAN ,   hmap::ITP2D_NNI }
	Enumeration of 2D interpolation methods. More...

Functions
float	hmap::bilinear_interp (float f00, float f10, float f01, float f11, float u, float v)
	Compute the bilinear interpolated value from four input values.
float	hmap::cubic_interpolate (float p[4], float x)
Array	hmap::harmonic_interpolation (const Array &array, const Array &mask_fixed_values, int iterations_max=500, float tolerance=1e-5f, float omega=1.8f)
	Perform harmonic interpolation on a 2D array using the Successive Over-Relaxation (SOR) method.
Array	hmap::interpolate2d (glm::ivec2 shape, const std::vector< float > &x, const std::vector< float > &y, const std::vector< float > &values, InterpolationMethod2D interpolation_method, const Array *p_noise_x=nullptr, const Array *p_noise_y=nullptr, glm::vec4 bbox={0.f, 1.f, 0.f, 1.f})
	Generic 2D interpolation function.
Array	hmap::interpolate2d_delaunay (glm::ivec2 shape, const std::vector< float > &x, const std::vector< float > &y, const std::vector< float > &values, const Array *p_noise_x=nullptr, const Array *p_noise_y=nullptr, glm::vec4 bbox={0.f, 1.f, 0.f, 1.f})
	2D interpolation using the Delaunay triangulation method.
Array	hmap::interpolate2d_gaussian (glm::ivec2 shape, const std::vector< float > &x, const std::vector< float > &y, const std::vector< float > &values, const Array *p_noise_x=nullptr, const Array *p_noise_y=nullptr, glm::vec4 bbox={0.f, 1.f, 0.f, 1.f}, float sigma=0.1f)
	2D interpolation using the Gaussian kernel method.
Array	hmap::interpolate2d_idw (glm::ivec2 shape, const std::vector< float > &x, const std::vector< float > &y, const std::vector< float > &values, const Array *p_noise_x=nullptr, const Array *p_noise_y=nullptr, glm::vec4 bbox={0.f, 1.f, 0.f, 1.f}, float distance_exp=2.f)
	2D interpolation using the IDW method.
Array	hmap::interpolate2d_nearest (glm::ivec2 shape, const std::vector< float > &x, const std::vector< float > &y, const std::vector< float > &values, const Array *p_noise_x=nullptr, const Array *p_noise_y=nullptr, glm::vec4 bbox={0.f, 1.f, 0.f, 1.f})
	2D interpolation using the nearest neighbor method.
Array	hmap::interpolate2d_nni (glm::ivec2 shape, const std::vector< float > &x, const std::vector< float > &y, const std::vector< float > &values, const Array *p_noise_x=nullptr, const Array *p_noise_y=nullptr, glm::vec4 bbox={0.f, 1.f, 0.f, 1.f})
	2D interpolation using the Natural Neighbor Interpolation method.

Detailed Description

Header file for 2D interpolation methods.

Author

Otto Link (otto..nosp@m.link.nosp@m..bv@g.nosp@m.mail.nosp@m..com)

This file provides declarations for functions and enumerations related to 2D interpolation. It supports different interpolation methods, including Delaunay triangulation and nearest point interpolation. These functions allow for the interpolation of values on a 2D grid using various techniques.

Copyright

Copyright (c) 2023 Otto Link