Files
OneCAD-Draft/src/entities/polyline.rs
T
Hakan SevenandClaude Opus 4.7 5e36e85e07 refactor(common): unify bulge → arc math into BulgeArc
The same DXF/DWG bulge → (center, radius, sweep) formula was inlined
in six places (hatch outline, polyline tess + truck path, lwpolyline
×4, scene hatch fill, explode bulge_to_arc) — each with subtly
different sweep-direction handling for the bulge sign.

Add `entities::common::BulgeArc { center, radius, start_angle,
end_angle, sweep }` with one `from_bulge(p0, p1, bulge)` constructor
and a `sample(t)` helper. Callsites collapse to a few lines.

Net: -121 lines, one canonical sweep-direction convention shared by
all consumers.

array.rs (the path-along-curve f32 helper) keeps its inline math —
its sign convention is inverted relative to the others and changing
it without exercising the array-path command risks regressing the
output.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-23 23:42:26 +03:00

590 lines
20 KiB
Rust

use acadrust::entities::{Polyline, Polyline2D, Polyline3D};
use glam::Vec3;
use truck_modeling::{builder, Edge, Point3, Wire};
use crate::command::EntityTransform;
use crate::entities::common::{edit_prop as edit, ro_prop as ro, square_grip};
use crate::entities::traits::{Grippable, PropertyEditable, Transformable, TruckConvertible};
use crate::scene::acad_to_truck::{TruckEntity, TruckObject};
use crate::scene::object::{GripApply, GripDef, PropSection, PropValue, Property};
use crate::scene::wire_model::TangentGeom;
// ── Polyline (old-style 3D heavy polyline) ────────────────────────────────────
fn tessellate_polyline(pl: &Polyline) -> TruckEntity {
let pts: Vec<[f64; 3]> = pl
.vertices
.iter()
.map(|v| [v.location.x, v.location.y, v.location.z])
.collect();
let mut points = pts.clone();
if pl.flags.is_closed() && pts.len() >= 2 {
points.push(pts[0]);
}
let key_verts = pts.clone();
TruckEntity {
object: TruckObject::Lines(points),
snap_pts: vec![],
tangent_geoms: vec![],
key_vertices: key_verts,
fill_tris: vec![],
}
}
impl TruckConvertible for Polyline {
fn to_truck(&self, _document: &acadrust::CadDocument) -> Option<TruckEntity> {
Some(tessellate_polyline(self))
}
}
impl Grippable for Polyline {
fn grips(&self) -> Vec<GripDef> {
self.vertices
.iter()
.enumerate()
.map(|(i, v)| {
square_grip(
i,
Vec3::new(
v.location.x as f32,
v.location.y as f32,
v.location.z as f32,
),
)
})
.collect()
}
fn apply_grip(&mut self, grip_id: usize, apply: GripApply) {
if let Some(v) = self.vertices.get_mut(grip_id) {
match apply {
GripApply::Translate(d) => {
v.location.x += d.x as f64;
v.location.y += d.y as f64;
v.location.z += d.z as f64;
}
GripApply::Absolute(p) => {
v.location.x = p.x as f64;
v.location.y = p.y as f64;
v.location.z = p.z as f64;
}
}
}
}
}
impl PropertyEditable for Polyline {
fn geometry_properties(&self, _text_style_names: &[String]) -> PropSection {
PropSection {
title: "Geometry".into(),
props: vec![
ro("Vertices", "vertices", self.vertices.len().to_string()),
Property {
label: "Closed".into(),
field: "pl_closed",
value: PropValue::BoolToggle {
field: "pl_closed",
value: self.flags.is_closed(),
},
},
],
}
}
fn apply_geom_prop(&mut self, field: &str, value: &str) {
if field == "pl_closed" {
let closed = if value == "toggle" {
!self.flags.is_closed()
} else {
value == "true"
};
self.flags.set_closed(closed);
}
}
}
impl Transformable for Polyline {
fn apply_transform(&mut self, t: &EntityTransform) {
crate::scene::transform::apply_standard_entity_transform(self, t, |entity, p1, p2| {
for v in &mut entity.vertices {
crate::scene::transform::reflect_xy_point(
&mut v.location.x,
&mut v.location.y,
p1,
p2,
);
}
});
}
}
// ── Polyline2D (heavy 2D polyline with bulge) ─────────────────────────────────
fn tessellate_polyline2d(pl: &Polyline2D) -> TruckEntity {
let verts = &pl.vertices;
if verts.is_empty() {
return TruckEntity {
object: TruckObject::Lines(vec![]),
snap_pts: vec![],
tangent_geoms: vec![],
key_vertices: vec![],
fill_tris: vec![],
};
}
let elev = pl.elevation;
let normal = (pl.normal.x, pl.normal.y, pl.normal.z);
let count = verts.len();
let seg_count = if pl.is_closed() { count } else { count - 1 };
let mut edges: Vec<Edge> = Vec::new();
let mut tangents: Vec<TangentGeom> = Vec::new();
let mut key_verts: Vec<[f64; 3]> = Vec::new();
let to_wcs = |x: f64, y: f64| -> (f64, f64, f64) {
crate::scene::transform::ocs_point_to_wcs((x, y, elev), normal)
};
let to_pt = |v: &acadrust::entities::Vertex2D| -> Point3 {
let (wx, wy, wz) = to_wcs(v.location.x, v.location.y);
Point3::new(wx, wy, wz)
};
if pl.thickness.abs() > 1e-10 {
let (nx, ny, nz) = normal;
let t = pl.thickness;
let off = |p: [f64; 3]| -> [f64; 3] {
[p[0] + t * nx, p[1] + t * ny, p[2] + t * nz]
};
let to_f32 = |p: [f64; 3]| -> [f32; 3] {
[p[0] as f32, p[1] as f32, p[2] as f32]
};
let mut path: Vec<[f64; 3]> = Vec::new();
let mut kv: Vec<[f64; 3]> = Vec::new();
let mut tgs: Vec<TangentGeom> = Vec::new();
let (w0x, w0y, w0z) = to_wcs(verts[0].location.x, verts[0].location.y);
path.push([w0x, w0y, w0z]);
kv.push([w0x, w0y, w0z]);
for i in 0..seg_count {
let va = &verts[i];
let vb = &verts[(i + 1) % count];
let (ox0, oy0) = (va.location.x, va.location.y);
let (ox1, oy1) = (vb.location.x, vb.location.y);
let bulge = va.bulge;
if bulge.abs() < 1e-9 {
let (wx, wy, wz) = to_wcs(ox1, oy1);
path.push([wx, wy, wz]);
let p1_pt = path[path.len() - 2];
let p2_pt = *path.last().unwrap();
tgs.push(TangentGeom::Line {
p1: to_f32(p1_pt),
p2: to_f32(p2_pt),
});
} else if let Some(arc) =
crate::entities::common::BulgeArc::from_bulge([ox0, oy0], [ox1, oy1], bulge)
{
let (wcx, wcy, wcz) = to_wcs(arc.center[0], arc.center[1]);
tgs.push(TangentGeom::Circle {
center: [wcx as f32, wcy as f32, wcz as f32],
radius: arc.radius as f32,
});
for j in 1..=16usize {
let s = arc.sample(j as f64 / 16.0);
let (wx, wy, wz) = to_wcs(s[0], s[1]);
path.push([wx, wy, wz]);
}
}
let (wbx, wby, wbz) = to_wcs(ox1, oy1);
kv.push([wbx, wby, wbz]);
}
let mut pts: Vec<[f64; 3]> = Vec::with_capacity(path.len() * 2 + kv.len() * 3 + 4);
pts.extend_from_slice(&path);
pts.push([f64::NAN; 3]);
for &p in &path {
pts.push(off(p));
}
if !kv.is_empty() {
pts.push([f64::NAN; 3]);
for (i, &pb) in kv.iter().enumerate() {
pts.push(pb);
pts.push(off(pb));
if i + 1 < kv.len() {
pts.push([f64::NAN; 3]);
}
}
}
return TruckEntity {
object: TruckObject::Lines(pts),
snap_pts: vec![],
tangent_geoms: tgs,
key_vertices: kv,
fill_tris: vec![],
};
}
for i in 0..seg_count {
let v0 = &verts[i];
let v1 = &verts[(i + 1) % count];
let p0 = to_pt(v0);
let p1 = to_pt(v1);
let bulge = v0.bulge;
if bulge.abs() < 1e-9 {
let tv0 = builder::vertex(p0);
let tv1 = builder::vertex(p1);
edges.push(builder::line(&tv0, &tv1));
tangents.push(TangentGeom::Line {
p1: [p0.x as f32, p0.y as f32, p0.z as f32],
p2: [p1.x as f32, p1.y as f32, p1.z as f32],
});
} else if let Some(arc) = crate::entities::common::BulgeArc::from_bulge(
[v0.location.x, v0.location.y],
[v1.location.x, v1.location.y],
bulge,
) {
let mid_s = arc.sample(0.5);
let (mid_wx, mid_wy, mid_wz) = to_wcs(mid_s[0], mid_s[1]);
let p_mid = Point3::new(mid_wx, mid_wy, mid_wz);
let tv0 = builder::vertex(p0);
let tv1 = builder::vertex(p1);
edges.push(builder::circle_arc(&tv0, &tv1, p_mid));
let (wcx, wcy, wcz) = to_wcs(arc.center[0], arc.center[1]);
tangents.push(TangentGeom::Circle {
center: [wcx as f32, wcy as f32, wcz as f32],
radius: arc.radius as f32,
});
}
if i == 0 {
key_verts.push([p0.x, p0.y, p0.z]);
}
key_verts.push([p1.x, p1.y, p1.z]);
}
TruckEntity {
object: TruckObject::Contour(edges.into_iter().collect::<Wire>()),
snap_pts: vec![],
tangent_geoms: tangents,
key_vertices: key_verts,
fill_tris: vec![],
}
}
impl TruckConvertible for Polyline2D {
fn to_truck(&self, _document: &acadrust::CadDocument) -> Option<TruckEntity> {
Some(tessellate_polyline2d(self))
}
}
impl Grippable for Polyline2D {
fn grips(&self) -> Vec<GripDef> {
let elev = self.elevation as f32;
self.vertices
.iter()
.enumerate()
.map(|(i, v)| square_grip(i, Vec3::new(v.location.x as f32, v.location.y as f32, elev)))
.collect()
}
fn apply_grip(&mut self, grip_id: usize, apply: GripApply) {
if let Some(v) = self.vertices.get_mut(grip_id) {
match apply {
GripApply::Translate(d) => {
v.location.x += d.x as f64;
v.location.y += d.y as f64;
}
GripApply::Absolute(p) => {
v.location.x = p.x as f64;
v.location.y = p.y as f64;
}
}
}
}
}
impl PropertyEditable for Polyline2D {
fn geometry_properties(&self, _text_style_names: &[String]) -> PropSection {
let smooth = match self.smooth_surface {
acadrust::entities::SmoothSurfaceType::None => "None",
acadrust::entities::SmoothSurfaceType::QuadraticBSpline => "Quadratic",
acadrust::entities::SmoothSurfaceType::CubicBSpline => "Cubic",
acadrust::entities::SmoothSurfaceType::Bezier => "Bezier",
};
PropSection {
title: "Geometry".into(),
props: vec![
ro("Vertices", "vertices", self.vertices.len().to_string()),
edit("Elevation", "pl2_elevation", self.elevation),
edit("Default Start W", "pl2_start_w", self.start_width),
edit("Default End W", "pl2_end_w", self.end_width),
edit("Thickness", "pl2_thickness", self.thickness),
ro("Smooth Surface", "pl2_smooth", smooth),
ro(
"Normal",
"pl2_normal",
format!(
"{:.3}, {:.3}, {:.3}",
self.normal.x, self.normal.y, self.normal.z
),
),
Property {
label: "Closed".into(),
field: "pl2_closed",
value: PropValue::BoolToggle {
field: "pl2_closed",
value: self.is_closed(),
},
},
],
}
}
fn apply_geom_prop(&mut self, field: &str, value: &str) {
match field {
"pl2_closed" => {
let closed = if value == "toggle" {
!self.is_closed()
} else {
value == "true"
};
if closed {
self.close();
} else {
self.flags.set_closed(false);
}
}
"pl2_elevation" => {
if let Ok(v) = value.trim().parse::<f64>() {
self.elevation = v;
}
}
"pl2_start_w" => {
if let Ok(v) = value.trim().parse::<f64>() {
if v >= 0.0 {
self.start_width = v;
}
}
}
"pl2_end_w" => {
if let Ok(v) = value.trim().parse::<f64>() {
if v >= 0.0 {
self.end_width = v;
}
}
}
"pl2_thickness" => {
if let Ok(v) = value.trim().parse::<f64>() {
self.thickness = v;
}
}
_ => {}
}
}
}
impl Transformable for Polyline2D {
fn apply_transform(&mut self, t: &EntityTransform) {
crate::scene::transform::apply_standard_entity_transform(self, t, |entity, p1, p2| {
for v in &mut entity.vertices {
crate::scene::transform::reflect_xy_point(
&mut v.location.x,
&mut v.location.y,
p1,
p2,
);
}
});
}
}
// ── Polyline3D ────────────────────────────────────────────────────────────────
fn tessellate_polyline3d(pl: &Polyline3D) -> TruckEntity {
let to_pt = |v: &acadrust::entities::Vertex3DPolyline| -> [f64; 3] {
[v.position.x, v.position.y, v.position.z]
};
// DXF vertex flags: 8 = spline-fit curve point, 16 = spline frame control point.
// When spline-fit vertices are present use them for the wire and control points for snap;
// otherwise treat all vertices uniformly.
let spline_curve: Vec<_> = pl.vertices.iter().filter(|v| v.flags & 8 != 0).collect();
let ctrl_pts: Vec<_> = pl.vertices.iter().filter(|v| v.flags & 16 != 0).collect();
let (wire_pts, key_verts) = if !spline_curve.is_empty() {
let wire: Vec<[f64; 3]> = spline_curve.iter().map(|v| to_pt(v)).collect();
let ctrl: Vec<[f64; 3]> = ctrl_pts.iter().map(|v| to_pt(v)).collect();
(wire, ctrl)
} else {
let pts: Vec<[f64; 3]> = pl.vertices.iter().map(to_pt).collect();
(pts.clone(), pts)
};
let mut points = wire_pts.clone();
if pl.is_closed() && wire_pts.len() >= 2 {
points.push(wire_pts[0]);
}
TruckEntity {
object: TruckObject::Lines(points),
snap_pts: vec![],
tangent_geoms: vec![],
key_vertices: key_verts,
fill_tris: vec![],
}
}
impl TruckConvertible for Polyline3D {
fn to_truck(&self, _document: &acadrust::CadDocument) -> Option<TruckEntity> {
Some(tessellate_polyline3d(self))
}
}
impl Grippable for Polyline3D {
fn grips(&self) -> Vec<GripDef> {
self.vertices
.iter()
.enumerate()
.map(|(i, v)| {
square_grip(
i,
Vec3::new(
v.position.x as f32,
v.position.y as f32,
v.position.z as f32,
),
)
})
.collect()
}
fn apply_grip(&mut self, grip_id: usize, apply: GripApply) {
if let Some(v) = self.vertices.get_mut(grip_id) {
match apply {
GripApply::Translate(d) => {
v.position.x += d.x as f64;
v.position.y += d.y as f64;
v.position.z += d.z as f64;
}
GripApply::Absolute(p) => {
v.position.x = p.x as f64;
v.position.y = p.y as f64;
v.position.z = p.z as f64;
}
}
}
}
}
impl PropertyEditable for Polyline3D {
fn geometry_properties(&self, _text_style_names: &[String]) -> PropSection {
use acadrust::entities::polyline3d::SmoothSurfaceType as SST;
let smooth = match self.smooth_type {
SST::None => "None",
SST::QuadraticBSpline => "Quadratic",
SST::CubicBSpline => "Cubic",
SST::Bezier => "Bezier",
};
PropSection {
title: "Geometry".into(),
props: vec![
ro("Vertices", "vertices", self.vertices.len().to_string()),
edit("Default Start W", "pl3_start_w", self.default_start_width),
edit("Default End W", "pl3_end_w", self.default_end_width),
ro("Smooth", "pl3_smooth", smooth),
ro("Mesh M", "pl3_mesh_m", self.mesh_m_count.to_string()),
ro("Mesh N", "pl3_mesh_n", self.mesh_n_count.to_string()),
ro(
"Smooth M Density",
"pl3_smooth_m",
self.smooth_m_density.to_string(),
),
ro(
"Smooth N Density",
"pl3_smooth_n",
self.smooth_n_density.to_string(),
),
Property {
label: "Closed".into(),
field: "pl3_closed",
value: PropValue::BoolToggle {
field: "pl3_closed",
value: self.is_closed(),
},
},
],
}
}
fn apply_geom_prop(&mut self, field: &str, value: &str) {
if field == "pl3_closed" {
let closed = if value == "toggle" {
!self.is_closed()
} else {
value == "true"
};
if closed {
self.close();
} else {
self.open();
}
return;
}
if let Ok(v) = value.trim().parse::<f64>() {
match field {
"pl3_start_w" if v >= 0.0 => self.default_start_width = v,
"pl3_end_w" if v >= 0.0 => self.default_end_width = v,
_ => {}
}
}
}
}
impl Transformable for Polyline3D {
fn apply_transform(&mut self, t: &EntityTransform) {
crate::scene::transform::apply_standard_entity_transform(self, t, |entity, p1, p2| {
for v in &mut entity.vertices {
crate::scene::transform::reflect_xy_point(
&mut v.position.x,
&mut v.position.y,
p1,
p2,
);
}
});
}
}
/// Generate solid-fill boundary polygons for each wide segment of a Polyline2D.
pub(crate) fn wide_fills(pl: &acadrust::entities::Polyline2D) -> Vec<Vec<[f32; 2]>> {
let hw_default = (pl.start_width.max(pl.end_width) / 2.0) as f32;
let verts = &pl.vertices;
let n = verts.len();
if n < 2 {
return vec![];
}
let seg_count = if pl.is_closed() { n } else { n - 1 };
let mut out = Vec::new();
for i in 0..seg_count {
let v0 = &verts[i];
let v1 = &verts[(i + 1) % n];
let hw0 = if v0.start_width > 1e-9 {
v0.start_width as f32 / 2.0
} else {
hw_default
};
let hw1 = if v0.end_width > 1e-9 {
v0.end_width as f32 / 2.0
} else {
hw_default
};
if hw0 < 1e-6 && hw1 < 1e-6 {
continue;
}
let p0 = [v0.location.x as f32, v0.location.y as f32];
let p1 = [v1.location.x as f32, v1.location.y as f32];
if let Some(poly) = crate::entities::common::polyline_segment_fill(p0, p1, hw0, hw1, v0.bulge as f32) {
out.push(poly);
}
}
out
}