forked from 1b-agent/opencadstudio-upstream
Hakan SevenandClaude Opus 4.7
ef1f9a08d6
Joining the OpenAEC Foundation (open-aec.com). Crate/struct become OpenCADStudio, user-facing strings use the spaced "Open CAD Studio" form, repo URLs point to HakanSeven12/open-cad-studio. Logo (window icon + assets/logo.svg) redrawn with OCS initials. Drop examples/ binaries — unused. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
1105 lines
34 KiB
Rust
1105 lines
34 KiB
Rust
// Arc tool — ribbon dropdown + all OpenCADStudio arc creation methods.
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//
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// Methods:
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// ARC — Center, Start, End (CSE — default)
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// ARC_3P — 3-Point
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// ARC_SCE — Start, Center, End
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// ARC_SCA — Start, Center, Angle
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// ARC_SCL — Start, Center, Length of chord
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// ARC_SEA — Start, End, Angle (sagitta-based pick)
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// ARC_SER — Start, End, Radius (radius defined by dist cursor→start)
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// ARC_SED — Start, End, Direction (tangent at start)
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// ARC_CSA — Center, Start, Angle
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// ARC_CSL — Center, Start, Length of chord
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use acadrust::types::Vector3;
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use acadrust::{Arc as CadArc, EntityType};
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use crate::command::{CadCommand, CmdResult};
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use crate::modules::IconKind;
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use crate::scene::wire_model::WireModel;
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use glam::Vec3;
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const TAU: f32 = std::f32::consts::TAU;
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// ── Per-method SVG icons ───────────────────────────────────────────────────
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const ICON_CSE: IconKind =
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IconKind::Svg(include_bytes!("../../../../assets/icons/arc/arc_cse.svg"));
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const ICON_3P: IconKind = IconKind::Svg(include_bytes!("../../../../assets/icons/arc/arc_3p.svg"));
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const ICON_SCE: IconKind =
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IconKind::Svg(include_bytes!("../../../../assets/icons/arc/arc_sce.svg"));
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const ICON_SCA: IconKind =
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IconKind::Svg(include_bytes!("../../../../assets/icons/arc/arc_sca.svg"));
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const ICON_SCL: IconKind =
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IconKind::Svg(include_bytes!("../../../../assets/icons/arc/arc_scl.svg"));
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const ICON_SEA: IconKind =
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IconKind::Svg(include_bytes!("../../../../assets/icons/arc/arc_sea.svg"));
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const ICON_SER: IconKind =
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IconKind::Svg(include_bytes!("../../../../assets/icons/arc/arc_ser.svg"));
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const ICON_SED: IconKind =
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IconKind::Svg(include_bytes!("../../../../assets/icons/arc/arc_sed.svg"));
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const ICON_CSA: IconKind =
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IconKind::Svg(include_bytes!("../../../../assets/icons/arc/arc_csa.svg"));
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const ICON_CSL: IconKind =
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IconKind::Svg(include_bytes!("../../../../assets/icons/arc/arc_csl.svg"));
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// ── Dropdown metadata ──────────────────────────────────────────────────────
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pub const DROPDOWN_ID: &str = "ARC";
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pub const DROPDOWN_ITEMS: &[(&str, &str, IconKind)] = &[
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("ARC", "Center, Start, End", ICON_CSE),
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("ARC_3P", "3-Point", ICON_3P),
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("ARC_SCE", "Start, Center, End", ICON_SCE),
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("ARC_SCA", "Start, Center, Angle", ICON_SCA),
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("ARC_SCL", "Start, Center, Length", ICON_SCL),
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("ARC_SEA", "Start, End, Angle", ICON_SEA),
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("ARC_SER", "Start, End, Radius", ICON_SER),
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("ARC_SED", "Start, End, Direction", ICON_SED),
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("ARC_CSA", "Center, Start, Angle", ICON_CSA),
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("ARC_CSL", "Center, Start, Length", ICON_CSL),
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];
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/// Default icon — falls back to CSE before first use.
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pub const ICON: IconKind = ICON_CSE;
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// ── Shared math helpers ────────────────────────────────────────────────────
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/// Angle in radians from `center` to `pt`.
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fn angle_xy(center: Vec3, pt: Vec3) -> f32 {
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(pt.y - center.y).atan2(pt.x - center.x)
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}
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/// Build a CCW arc polyline from `start_angle` to `end_angle` (radians).
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fn arc_preview(center: Vec3, radius: f32, start_angle: f32, end_angle: f32) -> WireModel {
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let mut ea = end_angle;
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while ea < start_angle {
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ea += TAU;
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}
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let span = (ea - start_angle).min(TAU);
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let segs = ((span / TAU) * 64.0).ceil().max(4.0) as u32;
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let pts: Vec<[f32; 3]> = (0..=segs)
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.map(|i| {
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let a = start_angle + span * (i as f32 / segs as f32);
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[
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center.x + radius * a.cos(),
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center.y + radius * a.sin(),
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center.z,
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]
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})
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.collect();
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WireModel::solid("rubber_band".into(), pts, WireModel::CYAN, false)
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}
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fn make_arc(center: Vec3, radius: f32, start_angle: f32, end_angle: f32) -> EntityType {
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EntityType::Arc(CadArc {
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center: Vector3::new(center.x as f64, center.y as f64, center.z as f64),
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radius: radius as f64,
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start_angle: start_angle as f64,
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end_angle: end_angle as f64,
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..Default::default()
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})
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}
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/// Signed rotation from `prev` to `curr` around `center`.
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/// Positive = CCW, negative = CW.
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fn rot_sign(center: Vec3, prev: Vec3, curr: Vec3) -> f32 {
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let p = prev - center;
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let c = curr - center;
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p.x * c.y - p.y * c.x
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}
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fn line_wire(a: Vec3, b: Vec3) -> WireModel {
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WireModel::solid(
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"rubber_band".into(),
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vec![[a.x, a.y, a.z], [b.x, b.y, b.z]],
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WireModel::CYAN,
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false,
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)
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}
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/// Circumscribed circle through three points.
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fn circumcircle(a: Vec3, b: Vec3, c: Vec3) -> Option<(Vec3, f32)> {
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let d = 2.0 * (a.x * (b.y - c.y) + b.x * (c.y - a.y) + c.x * (a.y - b.y));
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if d.abs() < 1e-9 {
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return None;
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}
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let ux = ((a.x * a.x + a.y * a.y) * (b.y - c.y)
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+ (b.x * b.x + b.y * b.y) * (c.y - a.y)
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+ (c.x * c.x + c.y * c.y) * (a.y - b.y))
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/ d;
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let uy = ((a.x * a.x + a.y * a.y) * (c.x - b.x)
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+ (b.x * b.x + b.y * b.y) * (a.x - c.x)
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+ (c.x * c.x + c.y * c.y) * (b.x - a.x))
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/ d;
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let center = Vec3::new(ux, uy, a.z);
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Some((center, center.distance(a)))
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}
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/// True if `angle` lies inside the CCW arc [start..end] (radians).
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fn ccw_contains(angle: f32, start: f32, end: f32) -> bool {
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let a = angle.rem_euclid(TAU);
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let s = start.rem_euclid(TAU);
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let e = end.rem_euclid(TAU);
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if s <= e {
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a >= s && a <= e
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} else {
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a >= s || a <= e
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}
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}
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/// Arc center+radius from two endpoints and a cursor (sagitta / bow-toward-cursor).
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fn arc_from_sagitta(s: Vec3, e: Vec3, cursor: Vec3) -> Option<(Vec3, f32)> {
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let chord_vec = e - s;
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let chord_len = (chord_vec.x * chord_vec.x + chord_vec.y * chord_vec.y).sqrt();
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if chord_len < 1e-6 {
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return None;
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}
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let unit_chord = Vec3::new(chord_vec.x / chord_len, chord_vec.y / chord_len, 0.0);
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let perp = Vec3::new(-unit_chord.y, unit_chord.x, 0.0);
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let mid = (s + e) * 0.5;
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let h = (cursor - mid).dot(perp); // signed sagitta
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if h.abs() < 1e-3 {
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return None;
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}
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let r = (chord_len * chord_len + 4.0 * h * h) / (8.0 * h.abs());
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let d = (r * r - (chord_len * 0.5) * (chord_len * 0.5))
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.max(0.0)
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.sqrt();
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Some((mid - perp * h.signum() * d, r))
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}
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/// Arc center+radius from start, end, and a radius-magnitude point (dist = dist(pt, start)).
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fn arc_from_se_radius(s: Vec3, e: Vec3, radius_pt: Vec3) -> Option<(Vec3, f32)> {
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let r = s.distance(radius_pt).max(1e-3);
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let chord_len = s.distance(e);
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if r < chord_len * 0.5 {
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return None;
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}
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let unit_chord = (e - s) / chord_len;
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let perp = Vec3::new(-unit_chord.y, 0.0, unit_chord.x);
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let mid = (s + e) * 0.5;
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let h_sign = (radius_pt - mid).dot(perp).signum();
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let d = (r * r - (chord_len * 0.5) * (chord_len * 0.5))
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.max(0.0)
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.sqrt();
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Some((mid - perp * h_sign * d, r))
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}
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/// Arc center+radius from start, end, and a tangent-direction point at start.
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fn arc_from_direction(s: Vec3, e: Vec3, dir_pt: Vec3) -> Option<(Vec3, f32)> {
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let t = (dir_pt - s).normalize_or_zero();
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if t.length_squared() < 1e-12 {
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return None;
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}
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let perp_t = Vec3::new(-t.y, t.x, 0.0); // rotate tangent 90° CCW
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let chord = e - s;
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let denom = perp_t.x * chord.x + perp_t.y * chord.y;
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if denom.abs() < 1e-9 {
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return None;
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}
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let lambda = chord.length_squared() * 0.5 / denom;
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let center = s + perp_t * lambda;
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Some((center, center.distance(s)))
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}
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/// Compute end_angle from a chord-length pick (SCL / CSL semantics).
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/// `chord_len` is clamped to [0, 2r].
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fn end_angle_from_chord_len(start_angle: f32, chord: f32, r: f32) -> f32 {
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let half = (chord.min(2.0 * r) / (2.0 * r)).asin();
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start_angle + 2.0 * half
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}
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// ── Command 1: Center, Start, End (ARC = CSE) ────────────────────────────
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pub struct ArcCommand {
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step: u8,
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c: Vec3,
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r: f32,
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sa: f32,
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prev_pt: Option<Vec3>,
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cw: bool,
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}
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impl ArcCommand {
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pub fn new() -> Self {
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Self {
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step: 0,
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c: Vec3::ZERO,
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r: 0.0,
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sa: 0.0,
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prev_pt: None,
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cw: false,
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}
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}
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}
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impl CadCommand for ArcCommand {
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fn name(&self) -> &'static str {
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"ARC"
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}
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fn prompt(&self) -> String {
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match self.step {
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0 => "ARC Specify center:".into(),
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1 => "ARC Specify start point:".into(),
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_ => format!(
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"ARC Specify end point [c=({:.2},{:.2}) r={:.3}]:",
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self.c.x, self.c.y, self.r
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),
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}
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}
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fn on_point(&mut self, pt: Vec3) -> CmdResult {
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match self.step {
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0 => {
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self.c = pt;
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self.step = 1;
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CmdResult::NeedPoint
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}
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1 => {
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self.r = self.c.distance(pt);
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self.sa = angle_xy(self.c, pt);
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self.step = 2;
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CmdResult::NeedPoint
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}
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_ => {
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let ea = angle_xy(self.c, pt);
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let e = if self.cw {
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make_arc(self.c, self.r, ea, self.sa)
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} else {
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make_arc(self.c, self.r, self.sa, ea)
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};
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CmdResult::CommitAndExit(e)
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}
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}
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}
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fn on_enter(&mut self) -> CmdResult {
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CmdResult::Cancel
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}
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fn on_escape(&mut self) -> CmdResult {
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CmdResult::Cancel
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}
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fn on_mouse_move(&mut self, pt: Vec3) -> Option<WireModel> {
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match self.step {
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1 => Some(line_wire(self.c, pt)),
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2 => {
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if let Some(prev) = self.prev_pt {
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if rot_sign(self.c, prev, pt).abs() > 1e-6 {
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self.cw = rot_sign(self.c, prev, pt) < 0.0;
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}
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}
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self.prev_pt = Some(pt);
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let ea = angle_xy(self.c, pt);
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Some(if self.cw {
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arc_preview(self.c, self.r, ea, self.sa)
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} else {
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arc_preview(self.c, self.r, self.sa, ea)
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})
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}
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_ => None,
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}
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}
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}
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// ── Command 2: 3-Point (ARC_3P) ──────────────────────────────────────────
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pub struct Arc3PCommand {
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pts: Vec<Vec3>,
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}
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impl Arc3PCommand {
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pub fn new() -> Self {
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Self { pts: Vec::new() }
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}
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}
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impl CadCommand for Arc3PCommand {
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fn name(&self) -> &'static str {
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"ARC_3P"
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}
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fn prompt(&self) -> String {
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match self.pts.len() {
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0 => "ARC 3P Specify start point:".into(),
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1 => "ARC 3P Specify second point on arc:".into(),
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_ => "ARC 3P Specify end point:".into(),
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}
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}
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fn on_point(&mut self, pt: Vec3) -> CmdResult {
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self.pts.push(pt);
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if self.pts.len() < 3 {
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return CmdResult::NeedPoint;
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}
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let (p1, p2, p3) = (self.pts[0], self.pts[1], self.pts[2]);
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match circumcircle(p1, p2, p3) {
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None => {
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self.pts.pop();
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CmdResult::NeedPoint
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} // collinear — retry
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Some((center, radius)) => {
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let a1 = angle_xy(center, p1);
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let a2 = angle_xy(center, p2);
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let a3 = angle_xy(center, p3);
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// Choose arc direction so that p2 lies on the arc from p1 to p3.
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let (sa, ea) = if ccw_contains(a2, a1, a3) {
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(a1, a3)
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} else {
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(a3, a1)
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};
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CmdResult::CommitAndExit(make_arc(center, radius, sa, ea))
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}
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}
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}
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fn on_enter(&mut self) -> CmdResult {
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CmdResult::Cancel
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}
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fn on_escape(&mut self) -> CmdResult {
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CmdResult::Cancel
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}
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fn on_mouse_move(&mut self, pt: Vec3) -> Option<WireModel> {
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match self.pts.len() {
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0 => None,
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1 => Some(line_wire(self.pts[0], pt)),
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_ => {
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let (p1, p2) = (self.pts[0], self.pts[1]);
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if let Some((center, radius)) = circumcircle(p1, p2, pt) {
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let a1 = angle_xy(center, p1);
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let a2 = angle_xy(center, p2);
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let a3 = angle_xy(center, pt);
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let (sa, ea) = if ccw_contains(a2, a1, a3) {
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(a1, a3)
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} else {
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(a3, a1)
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};
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Some(arc_preview(center, radius, sa, ea))
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} else {
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Some(WireModel::solid(
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"rubber_band".into(),
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vec![[p1.x, p1.y, p1.z], [p2.x, p2.y, p2.z], [pt.x, pt.y, pt.z]],
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WireModel::CYAN,
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false,
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))
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}
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}
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}
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}
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}
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// ── Command 3: Start, Center, End (ARC_SCE) ──────────────────────────────
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pub struct ArcSCECommand {
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step: u8,
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s: Vec3,
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c: Vec3,
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r: f32,
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sa: f32,
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prev_pt: Option<Vec3>,
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cw: bool,
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}
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impl ArcSCECommand {
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pub fn new() -> Self {
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Self {
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step: 0,
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s: Vec3::ZERO,
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c: Vec3::ZERO,
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r: 0.0,
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sa: 0.0,
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prev_pt: None,
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cw: false,
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}
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}
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}
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impl CadCommand for ArcSCECommand {
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fn name(&self) -> &'static str {
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"ARC_SCE"
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}
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fn prompt(&self) -> String {
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match self.step {
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0 => "ARC SCE Specify start point:".into(),
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1 => "ARC SCE Specify center:".into(),
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_ => format!("ARC SCE Specify end point [r={:.3}]:", self.r),
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}
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}
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fn on_point(&mut self, pt: Vec3) -> CmdResult {
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match self.step {
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0 => {
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self.s = pt;
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self.step = 1;
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CmdResult::NeedPoint
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}
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1 => {
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self.c = pt;
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self.r = pt.distance(self.s);
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self.sa = angle_xy(pt, self.s);
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self.step = 2;
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CmdResult::NeedPoint
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}
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_ => {
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let ea = angle_xy(self.c, pt);
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let e = if self.cw {
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make_arc(self.c, self.r, ea, self.sa)
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} else {
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make_arc(self.c, self.r, self.sa, ea)
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};
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CmdResult::CommitAndExit(e)
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}
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}
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}
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fn on_enter(&mut self) -> CmdResult {
|
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CmdResult::Cancel
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}
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fn on_escape(&mut self) -> CmdResult {
|
||
CmdResult::Cancel
|
||
}
|
||
fn on_mouse_move(&mut self, pt: Vec3) -> Option<WireModel> {
|
||
match self.step {
|
||
1 => Some(line_wire(self.s, pt)),
|
||
2 => {
|
||
if let Some(prev) = self.prev_pt {
|
||
if rot_sign(self.c, prev, pt).abs() > 1e-6 {
|
||
self.cw = rot_sign(self.c, prev, pt) < 0.0;
|
||
}
|
||
}
|
||
self.prev_pt = Some(pt);
|
||
let ea = angle_xy(self.c, pt);
|
||
Some(if self.cw {
|
||
arc_preview(self.c, self.r, ea, self.sa)
|
||
} else {
|
||
arc_preview(self.c, self.r, self.sa, ea)
|
||
})
|
||
}
|
||
_ => None,
|
||
}
|
||
}
|
||
}
|
||
|
||
// ── Command 4: Start, Center, Angle (ARC_SCA) ────────────────────────────
|
||
// Interactive: cursor direction from center defines span. Typing: degrees of span.
|
||
|
||
pub struct ArcSCACommand {
|
||
step: u8,
|
||
s: Vec3,
|
||
c: Vec3,
|
||
r: f32,
|
||
sa: f32,
|
||
prev_pt: Option<Vec3>,
|
||
cw: bool,
|
||
}
|
||
|
||
impl ArcSCACommand {
|
||
pub fn new() -> Self {
|
||
Self {
|
||
step: 0,
|
||
s: Vec3::ZERO,
|
||
c: Vec3::ZERO,
|
||
r: 0.0,
|
||
sa: 0.0,
|
||
prev_pt: None,
|
||
cw: false,
|
||
}
|
||
}
|
||
}
|
||
|
||
impl CadCommand for ArcSCACommand {
|
||
fn name(&self) -> &'static str {
|
||
"ARC_SCA"
|
||
}
|
||
fn prompt(&self) -> String {
|
||
match self.step {
|
||
0 => "ARC SCA Specify start point:".into(),
|
||
1 => "ARC SCA Specify center:".into(),
|
||
_ => format!(
|
||
"ARC SCA Click end direction or type arc span in degrees [start={:.1}°]:",
|
||
self.sa.to_degrees()
|
||
),
|
||
}
|
||
}
|
||
fn on_point(&mut self, pt: Vec3) -> CmdResult {
|
||
match self.step {
|
||
0 => {
|
||
self.s = pt;
|
||
self.step = 1;
|
||
CmdResult::NeedPoint
|
||
}
|
||
1 => {
|
||
self.c = pt;
|
||
self.r = pt.distance(self.s);
|
||
self.sa = angle_xy(pt, self.s);
|
||
self.step = 2;
|
||
CmdResult::NeedPoint
|
||
}
|
||
_ => {
|
||
let ea = angle_xy(self.c, pt);
|
||
let e = if self.cw {
|
||
make_arc(self.c, self.r, ea, self.sa)
|
||
} else {
|
||
make_arc(self.c, self.r, self.sa, ea)
|
||
};
|
||
CmdResult::CommitAndExit(e)
|
||
}
|
||
}
|
||
}
|
||
fn on_enter(&mut self) -> CmdResult {
|
||
CmdResult::Cancel
|
||
}
|
||
fn on_escape(&mut self) -> CmdResult {
|
||
CmdResult::Cancel
|
||
}
|
||
fn on_text_input(&mut self, text: &str) -> Option<CmdResult> {
|
||
if self.step == 2 {
|
||
let span: f32 = text.trim().replace(',', ".").parse().ok()?;
|
||
// Negative span = CW; positive = CCW.
|
||
let ea = self.sa + span.to_radians();
|
||
return Some(CmdResult::CommitAndExit(make_arc(
|
||
self.c, self.r, self.sa, ea,
|
||
)));
|
||
}
|
||
None
|
||
}
|
||
fn on_mouse_move(&mut self, pt: Vec3) -> Option<WireModel> {
|
||
match self.step {
|
||
1 => Some(line_wire(self.s, pt)),
|
||
2 => {
|
||
if let Some(prev) = self.prev_pt {
|
||
if rot_sign(self.c, prev, pt).abs() > 1e-6 {
|
||
self.cw = rot_sign(self.c, prev, pt) < 0.0;
|
||
}
|
||
}
|
||
self.prev_pt = Some(pt);
|
||
let ea = angle_xy(self.c, pt);
|
||
Some(if self.cw {
|
||
arc_preview(self.c, self.r, ea, self.sa)
|
||
} else {
|
||
arc_preview(self.c, self.r, self.sa, ea)
|
||
})
|
||
}
|
||
_ => None,
|
||
}
|
||
}
|
||
}
|
||
|
||
// ── Command 5: Start, Center, Length (ARC_SCL) ───────────────────────────
|
||
// "Length" = chord length from start to end of arc.
|
||
// Interactive: cursor distance from start_pt drives the chord length.
|
||
|
||
pub struct ArcSCLCommand {
|
||
step: u8,
|
||
s: Vec3,
|
||
c: Vec3,
|
||
r: f32,
|
||
sa: f32,
|
||
}
|
||
|
||
impl ArcSCLCommand {
|
||
pub fn new() -> Self {
|
||
Self {
|
||
step: 0,
|
||
s: Vec3::ZERO,
|
||
c: Vec3::ZERO,
|
||
r: 0.0,
|
||
sa: 0.0,
|
||
}
|
||
}
|
||
}
|
||
|
||
impl CadCommand for ArcSCLCommand {
|
||
fn name(&self) -> &'static str {
|
||
"ARC_SCL"
|
||
}
|
||
fn prompt(&self) -> String {
|
||
match self.step {
|
||
0 => "ARC SCL Specify start point:".into(),
|
||
1 => "ARC SCL Specify center:".into(),
|
||
_ => format!(
|
||
"ARC SCL Click chord end or type chord length [r={:.3}]:",
|
||
self.r
|
||
),
|
||
}
|
||
}
|
||
fn on_point(&mut self, pt: Vec3) -> CmdResult {
|
||
match self.step {
|
||
0 => {
|
||
self.s = pt;
|
||
self.step = 1;
|
||
CmdResult::NeedPoint
|
||
}
|
||
1 => {
|
||
self.c = pt;
|
||
self.r = pt.distance(self.s);
|
||
self.sa = angle_xy(pt, self.s);
|
||
self.step = 2;
|
||
CmdResult::NeedPoint
|
||
}
|
||
_ => {
|
||
let chord = self.s.distance(pt);
|
||
let ea = end_angle_from_chord_len(self.sa, chord, self.r);
|
||
CmdResult::CommitAndExit(make_arc(self.c, self.r, self.sa, ea))
|
||
}
|
||
}
|
||
}
|
||
fn on_enter(&mut self) -> CmdResult {
|
||
CmdResult::Cancel
|
||
}
|
||
fn on_escape(&mut self) -> CmdResult {
|
||
CmdResult::Cancel
|
||
}
|
||
fn on_text_input(&mut self, text: &str) -> Option<CmdResult> {
|
||
if self.step == 2 {
|
||
let chord: f32 = text.trim().replace(',', ".").parse().ok()?;
|
||
if chord > 0.0 {
|
||
let ea = end_angle_from_chord_len(self.sa, chord, self.r);
|
||
return Some(CmdResult::CommitAndExit(make_arc(
|
||
self.c, self.r, self.sa, ea,
|
||
)));
|
||
}
|
||
}
|
||
None
|
||
}
|
||
fn on_mouse_move(&mut self, pt: Vec3) -> Option<WireModel> {
|
||
match self.step {
|
||
1 => Some(line_wire(self.s, pt)),
|
||
2 => {
|
||
let chord = self.s.distance(pt);
|
||
let ea = end_angle_from_chord_len(self.sa, chord, self.r);
|
||
Some(arc_preview(self.c, self.r, self.sa, ea))
|
||
}
|
||
_ => None,
|
||
}
|
||
}
|
||
}
|
||
|
||
// ── Command 6: Start, End, Angle (ARC_SEA) ───────────────────────────────
|
||
// Interactive: cursor distance from chord defines sagitta → arc shape.
|
||
|
||
pub struct ArcSEACommand {
|
||
step: u8,
|
||
s: Vec3,
|
||
e: Vec3,
|
||
}
|
||
|
||
impl ArcSEACommand {
|
||
pub fn new() -> Self {
|
||
Self {
|
||
step: 0,
|
||
s: Vec3::ZERO,
|
||
e: Vec3::ZERO,
|
||
}
|
||
}
|
||
}
|
||
|
||
impl CadCommand for ArcSEACommand {
|
||
fn name(&self) -> &'static str {
|
||
"ARC_SEA"
|
||
}
|
||
fn prompt(&self) -> String {
|
||
match self.step {
|
||
0 => "ARC SEA Specify start point:".into(),
|
||
1 => "ARC SEA Specify end point:".into(),
|
||
_ => "ARC SEA Specify angle (move cursor perpendicular to chord):".into(),
|
||
}
|
||
}
|
||
fn on_point(&mut self, pt: Vec3) -> CmdResult {
|
||
match self.step {
|
||
0 => {
|
||
self.s = pt;
|
||
self.step = 1;
|
||
CmdResult::NeedPoint
|
||
}
|
||
1 => {
|
||
self.e = pt;
|
||
self.step = 2;
|
||
CmdResult::NeedPoint
|
||
}
|
||
_ => match arc_from_sagitta(self.s, self.e, pt) {
|
||
Some((center, radius)) => {
|
||
let sa = angle_xy(center, self.s);
|
||
let ea = angle_xy(center, self.e);
|
||
CmdResult::CommitAndExit(make_arc(center, radius, sa, ea))
|
||
}
|
||
None => CmdResult::Cancel,
|
||
},
|
||
}
|
||
}
|
||
fn on_enter(&mut self) -> CmdResult {
|
||
CmdResult::Cancel
|
||
}
|
||
fn on_escape(&mut self) -> CmdResult {
|
||
CmdResult::Cancel
|
||
}
|
||
fn on_mouse_move(&mut self, pt: Vec3) -> Option<WireModel> {
|
||
match self.step {
|
||
1 => Some(line_wire(self.s, pt)),
|
||
2 => {
|
||
if let Some((center, radius)) = arc_from_sagitta(self.s, self.e, pt) {
|
||
let sa = angle_xy(center, self.s);
|
||
let ea = angle_xy(center, self.e);
|
||
Some(arc_preview(center, radius, sa, ea))
|
||
} else {
|
||
Some(line_wire(self.s, self.e))
|
||
}
|
||
}
|
||
_ => None,
|
||
}
|
||
}
|
||
}
|
||
|
||
// ── Command 7: Start, End, Radius (ARC_SER) ──────────────────────────────
|
||
// Interactive: radius = distance(cursor, start_point).
|
||
|
||
pub struct ArcSERCommand {
|
||
step: u8,
|
||
s: Vec3,
|
||
e: Vec3,
|
||
}
|
||
|
||
impl ArcSERCommand {
|
||
pub fn new() -> Self {
|
||
Self {
|
||
step: 0,
|
||
s: Vec3::ZERO,
|
||
e: Vec3::ZERO,
|
||
}
|
||
}
|
||
}
|
||
|
||
impl CadCommand for ArcSERCommand {
|
||
fn name(&self) -> &'static str {
|
||
"ARC_SER"
|
||
}
|
||
fn prompt(&self) -> String {
|
||
match self.step {
|
||
0 => "ARC SER Specify start point:".into(),
|
||
1 => "ARC SER Specify end point:".into(),
|
||
_ => "ARC SER Click radius point or type radius value:".into(),
|
||
}
|
||
}
|
||
fn on_point(&mut self, pt: Vec3) -> CmdResult {
|
||
match self.step {
|
||
0 => {
|
||
self.s = pt;
|
||
self.step = 1;
|
||
CmdResult::NeedPoint
|
||
}
|
||
1 => {
|
||
self.e = pt;
|
||
self.step = 2;
|
||
CmdResult::NeedPoint
|
||
}
|
||
_ => match arc_from_se_radius(self.s, self.e, pt) {
|
||
Some((center, radius)) => {
|
||
let sa = angle_xy(center, self.s);
|
||
let ea = angle_xy(center, self.e);
|
||
CmdResult::CommitAndExit(make_arc(center, radius, sa, ea))
|
||
}
|
||
None => CmdResult::Cancel,
|
||
},
|
||
}
|
||
}
|
||
fn on_enter(&mut self) -> CmdResult {
|
||
CmdResult::Cancel
|
||
}
|
||
fn on_escape(&mut self) -> CmdResult {
|
||
CmdResult::Cancel
|
||
}
|
||
fn on_text_input(&mut self, text: &str) -> Option<CmdResult> {
|
||
if self.step == 2 {
|
||
let r: f32 = text.trim().replace(',', ".").parse().ok()?;
|
||
let chord = self.s.distance(self.e);
|
||
if r > 0.0 && r >= chord / 2.0 {
|
||
let mid = (self.s + self.e) * 0.5;
|
||
let perp = {
|
||
let cv = (self.e - self.s) / chord;
|
||
Vec3::new(-cv.y, cv.x, 0.0)
|
||
};
|
||
let d = (r * r - (chord / 2.0) * (chord / 2.0)).max(0.0).sqrt();
|
||
let center = mid - perp * d;
|
||
let sa = angle_xy(center, self.s);
|
||
let ea = angle_xy(center, self.e);
|
||
return Some(CmdResult::CommitAndExit(make_arc(center, r, sa, ea)));
|
||
}
|
||
}
|
||
None
|
||
}
|
||
fn on_mouse_move(&mut self, pt: Vec3) -> Option<WireModel> {
|
||
match self.step {
|
||
1 => Some(line_wire(self.s, pt)),
|
||
2 => {
|
||
if let Some((center, radius)) = arc_from_se_radius(self.s, self.e, pt) {
|
||
let sa = angle_xy(center, self.s);
|
||
let ea = angle_xy(center, self.e);
|
||
Some(arc_preview(center, radius, sa, ea))
|
||
} else {
|
||
Some(line_wire(self.s, self.e))
|
||
}
|
||
}
|
||
_ => None,
|
||
}
|
||
}
|
||
}
|
||
|
||
// ── Command 8: Start, End, Direction (ARC_SED) ───────────────────────────
|
||
// Interactive: cursor position defines tangent direction at start (cursor − start).
|
||
|
||
pub struct ArcSEDCommand {
|
||
step: u8,
|
||
s: Vec3,
|
||
e: Vec3,
|
||
}
|
||
|
||
impl ArcSEDCommand {
|
||
pub fn new() -> Self {
|
||
Self {
|
||
step: 0,
|
||
s: Vec3::ZERO,
|
||
e: Vec3::ZERO,
|
||
}
|
||
}
|
||
}
|
||
|
||
impl CadCommand for ArcSEDCommand {
|
||
fn name(&self) -> &'static str {
|
||
"ARC_SED"
|
||
}
|
||
fn prompt(&self) -> String {
|
||
match self.step {
|
||
0 => "ARC SED Specify start point:".into(),
|
||
1 => "ARC SED Specify end point:".into(),
|
||
_ => "ARC SED Specify tangent direction at start:".into(),
|
||
}
|
||
}
|
||
fn on_point(&mut self, pt: Vec3) -> CmdResult {
|
||
match self.step {
|
||
0 => {
|
||
self.s = pt;
|
||
self.step = 1;
|
||
CmdResult::NeedPoint
|
||
}
|
||
1 => {
|
||
self.e = pt;
|
||
self.step = 2;
|
||
CmdResult::NeedPoint
|
||
}
|
||
_ => match arc_from_direction(self.s, self.e, pt) {
|
||
Some((center, radius)) => {
|
||
let sa = angle_xy(center, self.s);
|
||
let ea = angle_xy(center, self.e);
|
||
CmdResult::CommitAndExit(make_arc(center, radius, sa, ea))
|
||
}
|
||
None => CmdResult::Cancel,
|
||
},
|
||
}
|
||
}
|
||
fn on_enter(&mut self) -> CmdResult {
|
||
CmdResult::Cancel
|
||
}
|
||
fn on_escape(&mut self) -> CmdResult {
|
||
CmdResult::Cancel
|
||
}
|
||
fn on_mouse_move(&mut self, pt: Vec3) -> Option<WireModel> {
|
||
match self.step {
|
||
1 => Some(line_wire(self.s, pt)),
|
||
2 => {
|
||
if let Some((center, radius)) = arc_from_direction(self.s, self.e, pt) {
|
||
let sa = angle_xy(center, self.s);
|
||
let ea = angle_xy(center, self.e);
|
||
Some(arc_preview(center, radius, sa, ea))
|
||
} else {
|
||
Some(line_wire(self.s, self.e))
|
||
}
|
||
}
|
||
_ => None,
|
||
}
|
||
}
|
||
}
|
||
|
||
// ── Command 9: Center, Start, Angle (ARC_CSA) ────────────────────────────
|
||
// Interactive: angle direction indicated by cursor position relative to center.
|
||
|
||
pub struct ArcCSACommand {
|
||
step: u8,
|
||
c: Vec3,
|
||
r: f32,
|
||
sa: f32,
|
||
prev_pt: Option<Vec3>,
|
||
cw: bool,
|
||
}
|
||
|
||
impl ArcCSACommand {
|
||
pub fn new() -> Self {
|
||
Self {
|
||
step: 0,
|
||
c: Vec3::ZERO,
|
||
r: 0.0,
|
||
sa: 0.0,
|
||
prev_pt: None,
|
||
cw: false,
|
||
}
|
||
}
|
||
}
|
||
|
||
impl CadCommand for ArcCSACommand {
|
||
fn name(&self) -> &'static str {
|
||
"ARC_CSA"
|
||
}
|
||
fn prompt(&self) -> String {
|
||
match self.step {
|
||
0 => "ARC CSA Specify center:".into(),
|
||
1 => "ARC CSA Specify start point:".into(),
|
||
_ => format!(
|
||
"ARC CSA Click end direction or type arc span in degrees [start={:.1}°]:",
|
||
self.sa.to_degrees()
|
||
),
|
||
}
|
||
}
|
||
fn on_point(&mut self, pt: Vec3) -> CmdResult {
|
||
match self.step {
|
||
0 => {
|
||
self.c = pt;
|
||
self.step = 1;
|
||
CmdResult::NeedPoint
|
||
}
|
||
1 => {
|
||
self.r = self.c.distance(pt);
|
||
self.sa = angle_xy(self.c, pt);
|
||
self.step = 2;
|
||
CmdResult::NeedPoint
|
||
}
|
||
_ => {
|
||
let ea = angle_xy(self.c, pt);
|
||
let e = if self.cw {
|
||
make_arc(self.c, self.r, ea, self.sa)
|
||
} else {
|
||
make_arc(self.c, self.r, self.sa, ea)
|
||
};
|
||
CmdResult::CommitAndExit(e)
|
||
}
|
||
}
|
||
}
|
||
fn on_enter(&mut self) -> CmdResult {
|
||
CmdResult::Cancel
|
||
}
|
||
fn on_escape(&mut self) -> CmdResult {
|
||
CmdResult::Cancel
|
||
}
|
||
fn on_text_input(&mut self, text: &str) -> Option<CmdResult> {
|
||
if self.step == 2 {
|
||
let span: f32 = text.trim().replace(',', ".").parse().ok()?;
|
||
let ea = self.sa + span.to_radians();
|
||
return Some(CmdResult::CommitAndExit(make_arc(
|
||
self.c, self.r, self.sa, ea,
|
||
)));
|
||
}
|
||
None
|
||
}
|
||
fn on_mouse_move(&mut self, pt: Vec3) -> Option<WireModel> {
|
||
match self.step {
|
||
1 => Some(line_wire(self.c, pt)),
|
||
2 => {
|
||
if let Some(prev) = self.prev_pt {
|
||
if rot_sign(self.c, prev, pt).abs() > 1e-6 {
|
||
self.cw = rot_sign(self.c, prev, pt) < 0.0;
|
||
}
|
||
}
|
||
self.prev_pt = Some(pt);
|
||
let ea = angle_xy(self.c, pt);
|
||
Some(if self.cw {
|
||
arc_preview(self.c, self.r, ea, self.sa)
|
||
} else {
|
||
arc_preview(self.c, self.r, self.sa, ea)
|
||
})
|
||
}
|
||
_ => None,
|
||
}
|
||
}
|
||
}
|
||
|
||
// ── Command 10: Center, Start, Length (ARC_CSL) ──────────────────────────
|
||
// "Length" = chord from start to end. Interactive: dist(cursor, start_pt) = chord.
|
||
|
||
pub struct ArcCSLCommand {
|
||
step: u8,
|
||
c: Vec3,
|
||
s: Vec3,
|
||
r: f32,
|
||
sa: f32,
|
||
}
|
||
|
||
impl ArcCSLCommand {
|
||
pub fn new() -> Self {
|
||
Self {
|
||
step: 0,
|
||
c: Vec3::ZERO,
|
||
s: Vec3::ZERO,
|
||
r: 0.0,
|
||
sa: 0.0,
|
||
}
|
||
}
|
||
}
|
||
|
||
impl CadCommand for ArcCSLCommand {
|
||
fn name(&self) -> &'static str {
|
||
"ARC_CSL"
|
||
}
|
||
fn prompt(&self) -> String {
|
||
match self.step {
|
||
0 => "ARC CSL Specify center:".into(),
|
||
1 => "ARC CSL Specify start point:".into(),
|
||
_ => format!(
|
||
"ARC CSL Click chord end or type chord length [r={:.3}]:",
|
||
self.r
|
||
),
|
||
}
|
||
}
|
||
fn on_point(&mut self, pt: Vec3) -> CmdResult {
|
||
match self.step {
|
||
0 => {
|
||
self.c = pt;
|
||
self.step = 1;
|
||
CmdResult::NeedPoint
|
||
}
|
||
1 => {
|
||
self.s = pt;
|
||
self.r = self.c.distance(pt);
|
||
self.sa = angle_xy(self.c, pt);
|
||
self.step = 2;
|
||
CmdResult::NeedPoint
|
||
}
|
||
_ => {
|
||
let chord = self.s.distance(pt);
|
||
let ea = end_angle_from_chord_len(self.sa, chord, self.r);
|
||
CmdResult::CommitAndExit(make_arc(self.c, self.r, self.sa, ea))
|
||
}
|
||
}
|
||
}
|
||
fn on_enter(&mut self) -> CmdResult {
|
||
CmdResult::Cancel
|
||
}
|
||
fn on_escape(&mut self) -> CmdResult {
|
||
CmdResult::Cancel
|
||
}
|
||
fn on_text_input(&mut self, text: &str) -> Option<CmdResult> {
|
||
if self.step == 2 {
|
||
let chord: f32 = text.trim().replace(',', ".").parse().ok()?;
|
||
if chord > 0.0 {
|
||
let ea = end_angle_from_chord_len(self.sa, chord, self.r);
|
||
return Some(CmdResult::CommitAndExit(make_arc(
|
||
self.c, self.r, self.sa, ea,
|
||
)));
|
||
}
|
||
}
|
||
None
|
||
}
|
||
fn on_mouse_move(&mut self, pt: Vec3) -> Option<WireModel> {
|
||
match self.step {
|
||
1 => Some(line_wire(self.c, pt)),
|
||
2 => {
|
||
let chord = self.s.distance(pt);
|
||
let ea = end_angle_from_chord_len(self.sa, chord, self.r);
|
||
Some(arc_preview(self.c, self.r, self.sa, ea))
|
||
}
|
||
_ => None,
|
||
}
|
||
}
|
||
}
|