path.hpp File Reference

Path class for manipulating and analyzing paths in 2D space. More...

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Classes
class	hmap::Path
	Represents an ordered set of points in 2D, forming a polyline (open or closed). More...

Namespaces
namespace	hmap

Functions
Path	hmap::bezier (const Path &path, float curvature_ratio=0.3f, int edge_divisions=10, Path::EdgeDivisionMode edm=Path::EdgeDivisionMode::EDM_PER_EDGE)
	Smooth the path using Bezier curves.
Path	hmap::bezier_round (const Path &path, float curvature_ratio=0.3f, int edge_divisions=10, Path::EdgeDivisionMode edm=Path::EdgeDivisionMode::EDM_PER_EDGE)
	Smooth the path using Bezier curves (alternative method).
Path	hmap::bspline (const Path &path, int edge_divisions=10, Path::EdgeDivisionMode edm=Path::EdgeDivisionMode::EDM_PER_EDGE)
	Smooth the path using B-Spline curves.
Path	hmap::catmullrom (const Path &path, int edge_divisions=10, Path::EdgeDivisionMode edm=Path::EdgeDivisionMode::EDM_PER_EDGE)
	Smooth the path using Catmull-Rom curves.
Path	hmap::decasteljau (const Path &path, int edge_divisions=10, Path::EdgeDivisionMode edm=Path::EdgeDivisionMode::EDM_PER_EDGE)
	Smooth the path using De Casteljau curves.
Path	hmap::decimate_vw (const Path &path, int n_points_target=3)
	Simplifies the current path using the Visvalingam-Whyatt algorithm.
Path	hmap::fractalize (const Path &path, int iterations, uint seed, float sigma=0.2f, int orientation=0, float persistence=1.f, Array *p_control_field=nullptr, glm::vec4 bbox={0.f, 1.f, 0.f, 1.f})
	Applies fractalization to the path by adding points and randomly displacing their positions.
Path	hmap::inflate (const Path &path, float strength, bool resample=true)
	Inflate (offset) a path along its normals using curvature.
Path	hmap::meanderize (const Path &path, float ratio, float noise_ratio=0.1f, uint seed=1, int iterations=1, int edge_divisions=10, Path::EdgeDivisionMode edm=Path::EdgeDivisionMode::EDM_PER_EDGE)
	Add "meanders" to the path.
Array	hmap::path_sdf_to_array (const Path &path, glm::ivec2 shape, glm::vec4 bbox_array={0.f, 1.f, 0.f, 1.f}, const Array *p_noise_x=nullptr, const Array *p_noise_y=nullptr)
	Compute a distance field from a point path.
Path	hmap::remove_geometric_loops (const Path &path)
	Removes geometric loops in a 2D path caused by self-intersections.
Path	hmap::smooth (const Path &path, int navg=1, float averaging_intensity=1.f, float inertia=0.f)
	Applies a smoothing operation to the path points using a moving average filter.
bool	hmap::assert_start_end_points (const Path &path1, const Path &path2, float tol=1e-6f, bool verbose=false)
	Asserts that the start and end points of two paths are within a specified tolerance.
float	hmap::chamfer_distance (const Path &a, const Path &b)
	Calculate the chamfer distance between two paths.
bool	hmap::has_duplicates (const Path &path, float tol=1e-6f)
	Check if a path contains duplicate points within a given tolerance.

Detailed Description

Path class for manipulating and analyzing paths in 2D space.

Author

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

This file defines the Path class, which extends the Cloud class to provide functionalities specific to paths. The Path class includes methods for creating, manipulating, and analyzing paths, including smoothing the path with various curves, resampling, and performing operations like meandering and fractalizing.

Version

0.1

Date

2023-06-18

Copyright

Copyright (c) 2023 Otto Link

This software is distributed under the terms of the GNU General Public License. The full license is in the file LICENSE, distributed with this software.