bherbruckandClaude Opus 5.5
296683229d
* WIP deep rename (not for push) * WIP2 * WIP3 * WIP4 wxs fix * rustfmt * Rename the remaining identifiers in merged crash-report code Co-Authored-By: Claude Opus 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01RjGw4gA5ZvKrU8MQP6sBgT --------- Co-authored-by: Claude Opus 5.5 <[email protected]>
53 lines
1.7 KiB
Rust
53 lines
1.7 KiB
Rust
//! What surface a face lies on (plane, cylinder, cone, sphere, torus), for construction
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//! geometry: axes through round faces, centres of spheres and tori.
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use solidcraft_geom::Vec3;
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use crate::Body;
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use crate::offset::{Surf, surf_of};
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/// A face's analytic surface. Axes are unit vectors.
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#[derive(Clone, Copy, Debug, PartialEq)]
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pub enum FaceSurface {
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/// Outward unit normal and a point on the plane.
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Plane {
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normal: Vec3,
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point: Vec3,
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},
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Cylinder {
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origin: Vec3,
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axis: Vec3,
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radius: f64,
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},
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/// Apex, axis pointing into the cone, half-angle (radians).
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Cone {
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apex: Vec3,
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axis: Vec3,
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half_angle: f64,
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},
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Sphere {
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center: Vec3,
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radius: f64,
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},
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/// Centre of the ring, its axis, the ring (major) and tube (minor) radii.
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Torus {
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center: Vec3,
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axis: Vec3,
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major: f64,
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minor: f64,
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},
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}
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/// The surface of face `face` (in face order), if it is one of the analytic kinds.
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pub fn face_surface(b: &Body, face: usize) -> Option<FaceSurface> {
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let f = b.solid.face_iter().nth(face)?;
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let tol = (b.size() * 1e-7).max(1e-9) * 100.0;
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Some(match surf_of(f, tol)? {
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Surf::Plane { n, d } => FaceSurface::Plane { normal: n, point: n * d },
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Surf::Cylinder { o, a, r, .. } => FaceSurface::Cylinder { origin: o, axis: a, radius: r },
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Surf::Cone { v, a, half, .. } => FaceSurface::Cone { apex: v, axis: a, half_angle: half },
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Surf::Sphere { c, r, .. } => FaceSurface::Sphere { center: c, radius: r },
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Surf::Torus { o, a, big, h, r, .. } => FaceSurface::Torus { center: o + a * h, axis: a, major: big, minor: r },
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})
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}
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