axiolid-construct 0.2.0

Solid generation: profiles, lofts, sweeps, revolutions and half-space clipping
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
132
133
134
135
136
137
138
139
140
141
142
143
144
145

use axiolid_contracts::GeomResult;
use axiolid_core::Interval;
use axiolid_nurbs::TransverseSurfaceSurfaceTrace3;
use axiolid_surface::{BSplineSurface, Surface};

use crate::trimmed_intersection_builder::ArrangementBuilder;
use crate::trimmed_intersection_classify::{DualClassification, SplitClassification};
use crate::trimmed_intersection_clone_surface::clone_surface;
use crate::trimmed_intersection_rectangle::{add_split_faces, add_unsplit_face};
use crate::trimmed_intersection_types::{
    CertifiedDualTrimmedSurfacePair3, CertifiedTrimmedSurfacePair3, EmbeddedFaceCurve,
    SurfacePairMember,
};

pub(super) fn assemble(
    first: &BSplineSurface,
    second: &BSplineSurface,
    trace: TransverseSurfaceSurfaceTrace3,
    classification: SplitClassification,
    residual_upper_bound: f64,
    visited_patch_pairs: u32,
    boundary_queries: u8,
) -> GeomResult<CertifiedTrimmedSurfacePair3> {
    let mut builder = ArrangementBuilder::new()?;
    let first_support = builder.add_surface(Surface::BSpline(clone_surface(first)?));
    let second_support = builder.add_surface(Surface::BSpline(clone_surface(second)?));

    let start_vertex = builder.add_vertex(trace.start.point);
    let end_vertex = builder.add_vertex(trace.end.point);
    let intersection_edge =
        builder.add_line_edge(start_vertex, end_vertex, trace.start.point, trace.end.point)?;

    let (owner_surface, owner_support, embedded_surface, embedded_support) =
        match classification.member {
            SurfacePairMember::First => (first, first_support, second, second_support),
            SurfacePairMember::Second => (second, second_support, first, first_support),
        };

    let split = add_split_faces(
        &mut builder,
        owner_surface,
        owner_support,
        classification.owner_domain,
        classification.owner_start,
        classification.owner_end,
        trace.start.point,
        trace.end.point,
        start_vertex,
        end_vertex,
        intersection_edge,
    )?;
    let embedded_face = add_unsplit_face(
        &mut builder,
        embedded_surface,
        embedded_support,
        classification.embedded_domain,
    )?;
    let embedded_pcurve = builder.add_pcurve(
        classification.embedded_start.uv,
        classification.embedded_end.uv,
    )?;
    let embedded_curve = EmbeddedFaceCurve {
        face: embedded_face,
        edge: intersection_edge,
        pcurve: embedded_pcurve,
        interval: Interval::UNIT,
    };
    let brep = builder.finish()?;

    Ok(CertifiedTrimmedSurfacePair3 {
        brep,
        trace,
        intersection_edge,
        split_surface: classification.member,
        split_faces: split.faces,
        unsplit_face: embedded_face,
        embedded_curve,
        max_surface_residual_upper_bound: residual_upper_bound,
        visited_patch_pairs,
        boundary_queries: u32::from(boundary_queries),
    })
}

/// Assemble four closed faces for a chord that partitions both patches.
///
/// The same model-space edge and its two vertices are shared by all four
/// loops: creating them once is what makes the result a single connected
/// arrangement rather than two arrangements that merely coincide.
pub(super) fn assemble_dual(
    first: &BSplineSurface,
    second: &BSplineSurface,
    trace: TransverseSurfaceSurfaceTrace3,
    classification: DualClassification,
    residual_upper_bound: f64,
    visited_patch_pairs: u32,
    boundary_queries: u8,
) -> GeomResult<CertifiedDualTrimmedSurfacePair3> {
    let mut builder = ArrangementBuilder::new()?;
    let first_support = builder.add_surface(Surface::BSpline(clone_surface(first)?));
    let second_support = builder.add_surface(Surface::BSpline(clone_surface(second)?));

    let start_vertex = builder.add_vertex(trace.start.point);
    let end_vertex = builder.add_vertex(trace.end.point);
    let intersection_edge =
        builder.add_line_edge(start_vertex, end_vertex, trace.start.point, trace.end.point)?;

    let first_split = add_split_faces(
        &mut builder,
        first,
        first_support,
        classification.first_domain,
        classification.first_start,
        classification.first_end,
        trace.start.point,
        trace.end.point,
        start_vertex,
        end_vertex,
        intersection_edge,
    )?;
    let second_split = add_split_faces(
        &mut builder,
        second,
        second_support,
        classification.second_domain,
        classification.second_start,
        classification.second_end,
        trace.start.point,
        trace.end.point,
        start_vertex,
        end_vertex,
        intersection_edge,
    )?;
    let brep = builder.finish()?;

    Ok(CertifiedDualTrimmedSurfacePair3 {
        brep,
        intersection_edge,
        first_faces: first_split.faces,
        second_faces: second_split.faces,
        trace,
        max_surface_residual_upper_bound: residual_upper_bound,
        visited_patch_pairs,
        boundary_queries: u32::from(boundary_queries),
    })
}