curvature.hpp

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/* Copyright (c) 2023 Otto Link. Distributed under the terms of the GNU General
   Public License. The full license is in the file LICENSE, distributed with
   this software. */
 
#pragma once
 
#include "highmap/array.hpp"
 
namespace hmap
{
 
Array level_set_curvature(const Array &array, int prefilter_ir);
 
} // namespace hmap
 
namespace hmap::gpu
{
 
Array level_set_curvature(const Array &array, int prefilter_ir);
 
} // namespace hmap::gpu
 
// ==========================================================================
//  Wrapper
// ==========================================================================
 
namespace hmap
{
 
// clang-format off
enum CurvatureType : int
{
    CT_MIN,          
    CT_MAX,          
    CT_MEAN,         
    CT_GAUSSIAN,     
    CT_PROFILE,      
    CT_CONTOUR,      
    CT_TANGENTIAL,   
    CT_ACCUMULATION, 
    CT_SHAPE_INDEX,  
    CT_UNSPHERICITY, 
    CT_RING,         
    CT_ROTOR,        
};
// clang-format on
 
Array curvature_quadric(const Array &z, int ir, CurvatureType curvature_type);
 
} // namespace hmap
 
namespace hmap::gpu
{
 
Array curvature_quadric(const Array  &z,
                        int           ir,
                        CurvatureType curvature_type,
                        bool          approx_algo = false);
 
} // namespace hmap::gpu