i_triangle 0.42.0

Polygon Triangulation Library: Efficient Delaunay Triangulation for Complex Shapes.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131

use crate::float::triangulation::RawTriangulation;
use crate::int::custom::IntCustomTriangulatable;
use crate::int::triangulation::RawIntTriangulation;
use crate::int::validation::Validation;
use i_overlay::i_float::adapter::FloatPointAdapter;
use i_overlay::i_float::float::compatible::FloatPointCompatible;
use i_overlay::i_float::float::number::FloatNumber;
use i_overlay::i_float::float::rect::FloatRect;
use i_overlay::i_shape::base::data::{Contour, Shape};
use i_overlay::i_shape::float::adapter::{PathToInt, ShapeToInt, ShapesToInt};
use i_overlay::i_shape::float::rect::RectInit;

/// A trait for triangulating float geometry with user-defined validation rules.
///
/// Accepts a custom [`Validation`] object for tuning fill rule, min area, etc.
pub trait CustomTriangulatable<P: FloatPointCompatible<T>, T: FloatNumber> {
    /// Performs triangulation using the specified [`Validation`] settings.
    fn custom_triangulate(&self, validation: Validation) -> RawTriangulation<P, T>;

    /// Performs triangulation with Steiner points and a custom [`Validation`] config.
    fn custom_triangulate_with_steiner_points(
        &self,
        points: &[P],
        validation: Validation,
    ) -> RawTriangulation<P, T>;
}

impl<P: FloatPointCompatible<T>, T: FloatNumber> CustomTriangulatable<P, T> for Contour<P> {
    fn custom_triangulate(&self, validation: Validation) -> RawTriangulation<P, T> {
        if let Some(rect) = FloatRect::with_path(self) {
            let adapter = FloatPointAdapter::<P, T>::new(rect);
            let raw = self.to_int(&adapter).custom_triangulate(validation);
            RawTriangulation { raw, adapter }
        } else {
            RawTriangulation {
                raw: RawIntTriangulation::default(),
                adapter: FloatPointAdapter::<P, T>::new(FloatRect::zero()),
            }
        }
    }

    fn custom_triangulate_with_steiner_points(
        &self,
        points: &[P],
        validation: Validation,
    ) -> RawTriangulation<P, T> {
        if let Some(rect) = FloatRect::with_path(self) {
            let adapter = FloatPointAdapter::<P, T>::new(rect);
            let float_points = points.to_int(&adapter);
            let raw = self
                .to_int(&adapter)
                .custom_triangulate_with_steiner_points(&float_points, validation);
            RawTriangulation { raw, adapter }
        } else {
            RawTriangulation {
                raw: RawIntTriangulation::default(),
                adapter: FloatPointAdapter::<P, T>::new(FloatRect::zero()),
            }
        }
    }
}

impl<P: FloatPointCompatible<T>, T: FloatNumber> CustomTriangulatable<P, T> for [Contour<P>] {
    fn custom_triangulate(&self, validation: Validation) -> RawTriangulation<P, T> {
        if let Some(rect) = FloatRect::with_paths(self) {
            let adapter = FloatPointAdapter::<P, T>::new(rect);
            let raw = self.to_int(&adapter).custom_triangulate(validation);
            RawTriangulation { raw, adapter }
        } else {
            RawTriangulation {
                raw: RawIntTriangulation::default(),
                adapter: FloatPointAdapter::<P, T>::new(FloatRect::zero()),
            }
        }
    }

    fn custom_triangulate_with_steiner_points(
        &self,
        points: &[P],
        validation: Validation,
    ) -> RawTriangulation<P, T> {
        if let Some(rect) = FloatRect::with_paths(self) {
            let adapter = FloatPointAdapter::<P, T>::new(rect);
            let float_points = points.to_int(&adapter);
            let raw = self
                .to_int(&adapter)
                .custom_triangulate_with_steiner_points(&float_points, validation);
            RawTriangulation { raw, adapter }
        } else {
            RawTriangulation {
                raw: RawIntTriangulation::default(),
                adapter: FloatPointAdapter::<P, T>::new(FloatRect::zero()),
            }
        }
    }
}

impl<P: FloatPointCompatible<T>, T: FloatNumber> CustomTriangulatable<P, T> for [Shape<P>] {
    fn custom_triangulate(&self, validation: Validation) -> RawTriangulation<P, T> {
        if let Some(rect) = FloatRect::with_list_of_paths(self) {
            let adapter = FloatPointAdapter::<P, T>::new(rect);
            let raw = self.to_int(&adapter).custom_triangulate(validation);
            RawTriangulation { raw, adapter }
        } else {
            RawTriangulation {
                raw: RawIntTriangulation::default(),
                adapter: FloatPointAdapter::<P, T>::new(FloatRect::zero()),
            }
        }
    }

    fn custom_triangulate_with_steiner_points(
        &self,
        points: &[P],
        validation: Validation,
    ) -> RawTriangulation<P, T> {
        if let Some(rect) = FloatRect::with_list_of_paths(self) {
            let adapter = FloatPointAdapter::<P, T>::new(rect);
            let float_points = points.to_int(&adapter);
            let raw = self
                .to_int(&adapter)
                .custom_triangulate_with_steiner_points(&float_points, validation);
            RawTriangulation { raw, adapter }
        } else {
            RawTriangulation {
                raw: RawIntTriangulation::default(),
                adapter: FloatPointAdapter::<P, T>::new(FloatRect::zero()),
            }
        }
    }
}