feat(model): 3D solid modelling tab — primitives + boolean ops

Rename the Home tab to "Draw" and add a Model tab beside it with two
groups:

- Model: BOX / CYLINDER / CONE / SPHERE / WEDGE / TORUS, placed with a
  footprint + height. Each is built as a real ACIS Solid3D (acadrust
  primitive builders) plus a truck B-rep, tessellated into the shaded
  mesh pipeline, with edge wires for picking + wireframe.
- Design: UNION / SUBTRACT / INTERSECT via truck-shapeops.

A session-only Scene.model_solids cache holds each solid's truck B-rep
so the boolean tools can combine and chain them. Supersedes the old
command-line BOX/SPHERE/CYLINDER (insert::solid3d_cmds keeps EXTRUDE/
REVOLVE/SWEEP/LOFT).

Known limitations: booleans need solids created this session; curved
ACIS primitives render in-session but not after reload (the SAT
tessellator handles only planar caps); geometry assumes world_offset 0.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Hakan Seven 2026-05-31 19:27:06 +03:00
commit 7bf9ce31ae
17 changed files with 1095 additions and 397 deletions

337
Cargo.lock generated
View file

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"syn 2.0.117",

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@ -20,6 +20,7 @@ image = { version = "0.25", default-features = false, features = ["png", "jpeg",
rayon = "1"
ureq = { version = "3", default-features = false, features = ["rustls"] }
inventory = "0.3"
truck-shapeops = "0.4"
[target.'cfg(target_os = "windows")'.dependencies]
windows-sys = { version = "0.61", features = ["Win32_UI_Shell", "Win32_UI_WindowsAndMessaging"] }

View file

@ -22,7 +22,7 @@ use std::fs;
use std::path::Path;
// Display order for known modules; unknown modules follow alphabetically.
const PRIORITY: &[&str] = &["home", "insert", "annotate", "view", "manage"];
const PRIORITY: &[&str] = &["home", "model", "insert", "annotate", "view", "manage"];
fn main() {
let mods_dir = Path::new("src/modules");

View file

@ -125,6 +125,16 @@ impl OpenCADStudio {
self.tabs[i].snap_result = None;
self.restore_pre_cmd_tangent();
}
CmdResult::CommitSolid { entity, solid } => {
let label = self.history_label_from_active_cmd(i, "SOLID");
self.push_undo_snapshot(i, label);
self.add_model_solid(entity, *solid);
self.tabs[i].dirty = true;
self.tabs[i].scene.clear_preview_wire();
self.tabs[i].active_cmd = None;
self.tabs[i].snap_result = None;
self.restore_pre_cmd_tangent();
}
CmdResult::CommitAndEditText(entity) => {
let label = self.history_label_from_active_cmd(i, "ENTITY");
self.push_undo_snapshot(i, label);

View file

@ -1190,6 +1190,22 @@ impl OpenCADStudio {
}
}
// ── Model commands (3D primitives) ─────────────────────────────
"BOX" | "WEDGE" | "CYLINDER" | "CONE" | "SPHERE" | "TORUS" => {
use crate::modules::model::primitive_cmd::PrimitiveCommand;
let new_cmd = PrimitiveCommand::new(cmd);
self.command_line.push_info(&new_cmd.prompt());
self.tabs[i].active_cmd = Some(Box::new(new_cmd));
}
// ── Design commands (solid booleans) ───────────────────────────
"UNION" | "SUBTRACT" | "INTERSECT" => {
use crate::modules::model::boolean_cmd::BoolOp;
if let Some(op) = BoolOp::from_id(cmd) {
return self.solid_boolean(op);
}
}
// ── Annotate commands ──────────────────────────────────────────
"TEXT" | "T" | "DT" => {
use crate::modules::annotate::text::TextCommand;
@ -5038,32 +5054,8 @@ impl OpenCADStudio {
}
}
// ── 3D Primitive — BOX ────────────────────────────────────────
"BOX" => {
use crate::modules::insert::solid3d_cmds::BoxCommand;
let color = self.tabs[i].scene.layer_color(&self.tabs[i].active_layer);
let cmd = BoxCommand::new(color);
self.command_line.push_info(&cmd.prompt());
self.tabs[i].active_cmd = Some(Box::new(cmd));
}
// ── 3D Primitive — SPHERE ─────────────────────────────────────
"SPHERE" => {
use crate::modules::insert::solid3d_cmds::SphereCommand;
let color = self.tabs[i].scene.layer_color(&self.tabs[i].active_layer);
let cmd = SphereCommand::new(color);
self.command_line.push_info(&cmd.prompt());
self.tabs[i].active_cmd = Some(Box::new(cmd));
}
// ── 3D Primitive — CYLINDER ───────────────────────────────────
"CYLINDER" => {
use crate::modules::insert::solid3d_cmds::CylinderCommand;
let color = self.tabs[i].scene.layer_color(&self.tabs[i].active_layer);
let cmd = CylinderCommand::new(color);
self.command_line.push_info(&cmd.prompt());
self.tabs[i].active_cmd = Some(Box::new(cmd));
}
// BOX / SPHERE / CYLINDER / CONE / WEDGE / TORUS are handled by the
// Model-tab primitive command above (with truck boolean caching).
// ── EXTRUDE ────────────────────────────────────────────────────
"EXTRUDE" | "EXT" => {

View file

@ -5,6 +5,7 @@ mod helpers;
mod history;
mod layers;
mod mtext_editor;
mod model_ops;
mod properties;
mod text_inline;
mod update;

75
src/app/model_ops.rs Normal file
View file

@ -0,0 +1,75 @@
// 3D solid modelling support on the App: committing Model-tab primitives,
// and the Design-group boolean operations (truck-shapeops) over the scene's
// session-cached truck B-reps.
use acadrust::entities::Solid3D;
use acadrust::{EntityType, Handle};
use iced::Task;
use truck_modeling::Solid;
use super::Message;
use crate::modules::model::boolean_cmd::BoolOp;
use crate::scene::model_solid::{self, Bool};
impl super::OpenCADStudio {
/// Commit a Model-tab solid: add its acadrust entity to the document, then
/// register the truck B-rep (caches it for booleans + tessellates it into
/// the shaded mesh pipeline). Returns the new entity handle.
pub(super) fn add_model_solid(&mut self, entity: EntityType, solid: Solid) -> Handle {
let i = self.active_tab;
let Some(handle) = self.commit_entity_handle(entity) else {
return Handle::NULL;
};
self.tabs[i].scene.register_model_solid(handle, solid);
handle
}
/// Run a boolean (`union` / `subtract` / `intersect`) on exactly two
/// selected solids whose truck B-reps are in the session cache.
pub(super) fn solid_boolean(&mut self, op: BoolOp) -> Task<Message> {
let i = self.active_tab;
// Selected entities that have a cached truck B-rep.
let handles: Vec<Handle> = self.tabs[i]
.scene
.selected
.iter()
.copied()
.filter(|h| self.tabs[i].scene.model_solids.contains_key(h))
.collect();
if handles.len() != 2 {
self.command_line.push_error(
"Boolean: select exactly two solids created this session.",
);
return Task::none();
}
let a = self.tabs[i].scene.model_solids[&handles[0]].clone();
let b = self.tabs[i].scene.model_solids[&handles[1]].clone();
let kind = match op {
BoolOp::Union => Bool::Union,
BoolOp::Subtract => Bool::Subtract,
BoolOp::Intersect => Bool::Intersect,
};
let Some(result) = model_solid::boolean(kind, &a, &b) else {
self.command_line
.push_error("Boolean failed — the solids may not overlap.");
return Task::none();
};
self.push_undo_snapshot(i, "BOOLEAN");
// Remove the two operands (entity + mesh + cached B-rep).
self.tabs[i].scene.erase_entities(&handles);
// The result is freshly combined geometry with no ACIS parametrisation,
// so it lives as a Solid3D whose render/boolean data is the injected
// truck mesh + cached B-rep; its edge wires make it pickable.
let mut s3d = Solid3D::new();
s3d.wires = model_solid::edge_wires(&result);
let handle = self.add_model_solid(EntityType::Solid3D(s3d), result);
self.tabs[i].scene.deselect_all();
if !handle.is_null() {
self.tabs[i].scene.select_entity(handle, false);
}
self.tabs[i].dirty = true;
self.refresh_properties();
Task::none()
}
}

View file

@ -51,6 +51,13 @@ pub enum CmdResult {
CommitEntity(EntityType),
/// Commit an acadrust entity to the document and end the command.
CommitAndExit(EntityType),
/// Commit a Model-tab 3D solid: the acadrust entity (for selection /
/// persistence) plus its truck B-rep (cached for boolean ops + shaded
/// rendering). Ends the command.
CommitSolid {
entity: EntityType,
solid: Box<truck_modeling::Solid>,
},
/// Commit an acadrust entity, end the command, and open the in-place text
/// editor on it (used by MLEADER to type the annotation after placement).
CommitAndEditText(EntityType),

View file

@ -23,7 +23,7 @@ impl CadModule for HomeModule {
"home"
}
fn title(&self) -> &'static str {
"Home"
"Draw"
}
fn ribbon_groups(&self) -> Vec<RibbonGroup> {

View file

@ -1,352 +1,20 @@
// 3D solid primitive commands — BOX, SPHERE, CYLINDER
// and 2D→3D extrusion commands — EXTRUDE, REVOLVE.
// 2D→3D modelling commands — EXTRUDE, REVOLVE, SWEEP, LOFT.
//
// All create a minimal Solid3D entity (empty ACIS, just as a document
// placeholder to hold the handle) and a MeshModel built with truck.
// The mesh is manually inserted into scene.meshes so it renders immediately.
//
// Round-trip limitation: saving and reopening the file will not restore
// the mesh because the ACIS data is empty. Full ACIS generation requires
// a separate step (out of scope here).
//
// Coordinate convention in OpenCADStudio: the viewport is Y-up (OpenGL style),
// so screen X→DXF X, screen Z→DXF Y, screen Y→DXF Z (height).
// truck works in standard math coordinates; we map accordingly.
// Each picks profile/path entities and emits a `CmdResult` whose handler
// builds a truck solid and inserts its MeshModel into scene.meshes under a
// minimal placeholder Solid3D entity (empty ACIS — saving will not restore
// the mesh). The standalone primitives (BOX/CYLINDER/CONE/SPHERE/WEDGE/TORUS)
// live in the Model tab (`modules::model::primitive_cmd`).
use acadrust::{entities::Solid3D, EntityType};
use glam::Vec3;
use truck_modeling::builder;
use truck_modeling::{Point3, Rad, Vector3 as TruckVec3};
use crate::command::{CadCommand, CmdResult};
use crate::scene::mesh_model::MeshModel;
use crate::scene::truck_tess;
// ── Tessellation helper ────────────────────────────────────────────────────
fn solid_to_mesh(solid: &truck_modeling::Solid, color: [f32; 4], name: &str) -> Option<MeshModel> {
match truck_tess::tessellate_solid(solid, [0.0; 3]) {
truck_tess::TruckTessResult::Mesh {
verts,
normals,
indices,
} => Some(MeshModel {
name: name.to_string(),
verts,
normals,
indices,
color,
selected: false,
}),
_ => None,
}
}
fn shell_to_mesh(shell: &truck_modeling::Shell, color: [f32; 4], name: &str) -> Option<MeshModel> {
match truck_tess::tessellate_shell(shell, [0.0; 3]) {
truck_tess::TruckTessResult::Mesh {
verts,
normals,
indices,
} => Some(MeshModel {
name: name.to_string(),
verts,
normals,
indices,
color,
selected: false,
}),
_ => None,
}
}
// ── BOX command ────────────────────────────────────────────────────────────
pub struct BoxCommand {
step: BoxStep,
p1: Vec3,
p2: Vec3,
color: [f32; 4],
}
#[derive(PartialEq)]
enum BoxStep {
Corner1,
Corner2,
Height,
}
impl BoxCommand {
pub fn new(color: [f32; 4]) -> Self {
Self {
step: BoxStep::Corner1,
p1: Vec3::ZERO,
p2: Vec3::ZERO,
color,
}
}
}
impl CadCommand for BoxCommand {
fn name(&self) -> &'static str {
"BOX"
}
fn prompt(&self) -> String {
match self.step {
BoxStep::Corner1 => "BOX First corner:".into(),
BoxStep::Corner2 => "BOX Opposite corner (XY):".into(),
BoxStep::Height => "BOX Height:".into(),
}
}
fn on_point(&mut self, pt: Vec3) -> CmdResult {
match self.step {
BoxStep::Corner1 => {
self.p1 = pt;
self.step = BoxStep::Corner2;
CmdResult::NeedPoint
}
BoxStep::Corner2 => {
self.p2 = pt;
self.step = BoxStep::Height;
CmdResult::NeedPoint
}
BoxStep::Height => commit_box(
self.p1,
self.p2,
(pt.y - self.p1.y).abs().max(1e-4),
self.color,
),
}
}
fn wants_text_input(&self) -> bool {
self.step == BoxStep::Height
}
fn on_text_input(&mut self, text: &str) -> Option<CmdResult> {
text.trim()
.parse::<f32>()
.ok()
.filter(|&h| h.abs() > 1e-6)
.map(|h| commit_box(self.p1, self.p2, h.abs(), self.color))
}
fn on_enter(&mut self) -> CmdResult {
CmdResult::Cancel
}
}
fn commit_box(p1: Vec3, p2: Vec3, height: f32, color: [f32; 4]) -> CmdResult {
// Map OpenCADStudio coords to truck: x→x, z→y, y→z
let x0 = p1.x.min(p2.x) as f64;
let y0 = p1.z.min(p2.z) as f64;
let x1 = p1.x.max(p2.x) as f64;
let y1 = p1.z.max(p2.z) as f64;
let z0 = p1.y as f64;
let h = height as f64;
// Build face at z=z0, then sweep to z0+h.
let v00 = builder::vertex(Point3::new(x0, y0, z0));
let v10 = builder::vertex(Point3::new(x1, y0, z0));
let v11 = builder::vertex(Point3::new(x1, y1, z0));
let v01 = builder::vertex(Point3::new(x0, y1, z0));
let e0 = builder::line(&v00, &v10);
let e1 = builder::line(&v10, &v11);
let e2 = builder::line(&v11, &v01);
let e3 = builder::line(&v01, &v00);
let wire: truck_modeling::Wire = [e0, e1, e2, e3].into_iter().collect();
let face = match builder::try_attach_plane(&[wire]) {
Ok(f) => f,
Err(_) => return CmdResult::Cancel,
};
// tsweep on Face → Solid
let solid = builder::tsweep(&face, TruckVec3::new(0.0, 0.0, h));
CmdResult::CommitSolid3D {
mesh_fn: Box::new(move |name| solid_to_mesh(&solid, color, &name)),
}
}
// ── SPHERE command ─────────────────────────────────────────────────────────
pub struct SphereCommand {
step: SphereStep,
center: Vec3,
color: [f32; 4],
}
#[derive(PartialEq)]
enum SphereStep {
Center,
Radius,
}
impl SphereCommand {
pub fn new(color: [f32; 4]) -> Self {
Self {
step: SphereStep::Center,
center: Vec3::ZERO,
color,
}
}
}
impl CadCommand for SphereCommand {
fn name(&self) -> &'static str {
"SPHERE"
}
fn prompt(&self) -> String {
match self.step {
SphereStep::Center => "SPHERE Center:".into(),
SphereStep::Radius => "SPHERE Radius:".into(),
}
}
fn on_point(&mut self, pt: Vec3) -> CmdResult {
match self.step {
SphereStep::Center => {
self.center = pt;
self.step = SphereStep::Radius;
CmdResult::NeedPoint
}
SphereStep::Radius => {
commit_sphere(self.center, (pt - self.center).length(), self.color)
}
}
}
fn wants_text_input(&self) -> bool {
self.step == SphereStep::Radius
}
fn on_text_input(&mut self, text: &str) -> Option<CmdResult> {
text.trim()
.parse::<f32>()
.ok()
.filter(|&r| r > 1e-6)
.map(|r| commit_sphere(self.center, r, self.color))
}
fn on_enter(&mut self) -> CmdResult {
CmdResult::Cancel
}
}
fn commit_sphere(center: Vec3, radius: f32, color: [f32; 4]) -> CmdResult {
let cx = center.x as f64;
let cy = center.z as f64;
let cz = center.y as f64;
let r = radius as f64;
// Build a half-circle arc wire from north pole to south pole (XZ plane).
let north = builder::vertex(Point3::new(cx, cy, cz + r));
let south = builder::vertex(Point3::new(cx, cy, cz - r));
let east = Point3::new(cx + r, cy, cz);
let arc = builder::circle_arc(&north, &south, east);
// rsweep the wire around the Z axis for a full revolution → Shell.
let wire: truck_modeling::Wire = std::iter::once(arc).collect();
let axis_pt = Point3::new(cx, cy, cz);
let axis = TruckVec3::new(0.0, 0.0, 1.0);
let shell = builder::rsweep(&wire, axis_pt, axis, Rad(std::f64::consts::TAU));
CmdResult::CommitSolid3D {
mesh_fn: Box::new(move |name| shell_to_mesh(&shell, color, &name)),
}
}
// ── CYLINDER command ───────────────────────────────────────────────────────
pub struct CylinderCommand {
step: CylStep,
center: Vec3,
radius: f32,
color: [f32; 4],
}
#[derive(PartialEq)]
enum CylStep {
Center,
Radius,
Height,
}
impl CylinderCommand {
pub fn new(color: [f32; 4]) -> Self {
Self {
step: CylStep::Center,
center: Vec3::ZERO,
radius: 1.0,
color,
}
}
}
impl CadCommand for CylinderCommand {
fn name(&self) -> &'static str {
"CYLINDER"
}
fn prompt(&self) -> String {
match self.step {
CylStep::Center => "CYLINDER Center of base:".into(),
CylStep::Radius => "CYLINDER Radius:".into(),
CylStep::Height => "CYLINDER Height:".into(),
}
}
fn on_point(&mut self, pt: Vec3) -> CmdResult {
match self.step {
CylStep::Center => {
self.center = pt;
self.step = CylStep::Radius;
CmdResult::NeedPoint
}
CylStep::Radius => {
self.radius = (pt - self.center).length().max(1e-4);
self.step = CylStep::Height;
CmdResult::NeedPoint
}
CylStep::Height => commit_cylinder(
self.center,
self.radius,
(pt.y - self.center.y).abs().max(1e-4),
self.color,
),
}
}
fn wants_text_input(&self) -> bool {
matches!(self.step, CylStep::Radius | CylStep::Height)
}
fn on_text_input(&mut self, text: &str) -> Option<CmdResult> {
let v = text.trim().parse::<f32>().ok().filter(|&v| v > 1e-6)?;
match self.step {
CylStep::Radius => {
self.radius = v;
self.step = CylStep::Height;
Some(CmdResult::NeedPoint)
}
CylStep::Height => Some(commit_cylinder(self.center, self.radius, v, self.color)),
_ => None,
}
}
fn on_enter(&mut self) -> CmdResult {
CmdResult::Cancel
}
}
fn commit_cylinder(center: Vec3, radius: f32, height: f32, color: [f32; 4]) -> CmdResult {
let cx = center.x as f64;
let cy = center.z as f64;
let cz = center.y as f64;
let r = radius as f64;
let h = height as f64;
// Build circle face at z=cz, sweep upward.
let right = builder::vertex(Point3::new(cx + r, cy, cz));
let left = builder::vertex(Point3::new(cx - r, cy, cz));
let top_t = Point3::new(cx, cy + r, cz);
let bot_t = Point3::new(cx, cy - r, cz);
let upper = builder::circle_arc(&right, &left, top_t);
let lower = builder::circle_arc(&left, &right, bot_t);
let wire: truck_modeling::Wire = [upper, lower].into_iter().collect();
let face = match builder::try_attach_plane(&[wire]) {
Ok(f) => f,
Err(_) => return CmdResult::Cancel,
};
let solid = builder::tsweep(&face, TruckVec3::new(0.0, 0.0, h));
CmdResult::CommitSolid3D {
mesh_fn: Box::new(move |name| solid_to_mesh(&solid, color, &name)),
}
}
// BOX / SPHERE / CYLINDER (and CONE / WEDGE / TORUS) now live in the Model tab
// (`modules::model::primitive_cmd`), which builds them as truck B-reps cached
// for the Design-group boolean tools. EXTRUDE / REVOLVE / SWEEP / LOFT remain
// here as 2D→3D operations.
// ── EXTRUDE command ────────────────────────────────────────────────────────
@ -661,10 +329,7 @@ pub fn empty_solid3d() -> EntityType {
// ── Autocomplete registry ─────────────────────────────────
inventory::submit!(crate::command::CommandRegistration { names: &["BOX"] }); // BoxCommand
inventory::submit!(crate::command::CommandRegistration { names: &["CYLINDER"] }); // CylinderCommand
inventory::submit!(crate::command::CommandRegistration { names: &["EXT", "EXTRUDE"] }); // ExtrudeCommand
inventory::submit!(crate::command::CommandRegistration { names: &["LOFT"] }); // LoftCommand
inventory::submit!(crate::command::CommandRegistration { names: &["REV", "REVOLVE"] }); // RevolveCommand
inventory::submit!(crate::command::CommandRegistration { names: &["SPHERE"] }); // SphereCommand
inventory::submit!(crate::command::CommandRegistration { names: &["SWEEP"] }); // SweepCommand

View file

@ -134,6 +134,7 @@ pub trait CadModule: Send + Sync {
pub mod annotate;
pub mod home;
pub mod insert;
pub mod model;
pub mod layout;
pub mod manage;
pub mod view;

View file

@ -0,0 +1,27 @@
// Boolean operations on 3D solids (Design group). The actual CSG runs in
// `App::solid_boolean` (src/app/model_ops.rs) using truck-shapeops on the
// session-cached truck B-reps; this module just names the operations.
/// Which boolean a Design-group tool performs on the two selected solids.
#[derive(Clone, Copy, PartialEq, Eq, Debug)]
pub enum BoolOp {
Union,
Subtract,
Intersect,
}
impl BoolOp {
pub fn from_id(id: &str) -> Option<BoolOp> {
Some(match id {
"UNION" => BoolOp::Union,
"SUBTRACT" => BoolOp::Subtract,
"INTERSECT" => BoolOp::Intersect,
_ => return None,
})
}
}
// ── Autocomplete registry ─────────────────────────────────
inventory::submit!(crate::command::CommandRegistration {
names: &["UNION", "SUBTRACT", "INTERSECT"]
});

63
src/modules/model/mod.rs Normal file
View file

@ -0,0 +1,63 @@
// Model module — 3D solid modelling.
//
// Model group : create primitive solids (box, cylinder, cone, sphere, …)
// as ACIS Solid3D entities via acadrust's primitive builders.
// Design group : combine solids with truck boolean operations
// (union / subtract / intersect).
pub mod boolean_cmd;
pub mod primitive_cmd;
use crate::modules::{CadModule, IconKind, ModuleEvent, RibbonGroup, RibbonItem, ToolDef};
pub struct ModelModule;
/// Helper to declare a ribbon tool that fires a named command.
fn tool(id: &'static str, label: &'static str, glyph: &'static str) -> ToolDef {
ToolDef {
id,
label,
icon: IconKind::Glyph(glyph),
event: ModuleEvent::Command(id.to_string()),
}
}
impl CadModule for ModelModule {
fn id(&self) -> &'static str {
"model"
}
fn title(&self) -> &'static str {
"Model"
}
fn ribbon_groups(&self) -> Vec<RibbonGroup> {
vec![
RibbonGroup {
title: "Model",
tools: vec![
RibbonItem::LargeTool(tool("BOX", "Box", "")),
RibbonItem::LargeTool(tool("CYLINDER", "Cylinder", "")),
RibbonItem::LargeTool(tool("CONE", "Cone", "")),
RibbonItem::LargeTool(tool("SPHERE", "Sphere", "")),
RibbonItem::Dropdown {
id: "MODEL_MORE",
icon: IconKind::Glyph(""),
items: vec![
("WEDGE", "Wedge", IconKind::Glyph("")),
("TORUS", "Torus", IconKind::Glyph("")),
],
default: "WEDGE",
},
],
},
RibbonGroup {
title: "Design",
tools: vec![
RibbonItem::LargeTool(tool("UNION", "Union", "")),
RibbonItem::LargeTool(tool("SUBTRACT", "Subtract", "")),
RibbonItem::LargeTool(tool("INTERSECT", "Intersect", "")),
],
},
]
}
}

View file

@ -0,0 +1,324 @@
// 3D primitive creation — BOX / CYLINDER / CONE / SPHERE / WEDGE / PYRAMID /
// TORUS. Each is placed CAD-style with a few clicks (planar footprint first,
// then a height value), then built as a real ACIS `Solid3D` via acadrust's
// `acis::primitives` builders. `Scene::add_entity` tessellates the SAT B-rep
// into the 3D mesh pipeline, so the solid renders, selects, and saves to DXF.
//
// A matching truck `Solid` is cached on the scene (see model/mod.rs) when the
// entity is committed, so the Design-group boolean tools can combine it.
use acadrust::entities::Solid3D;
use acadrust::{primitives, EntityType};
use glam::Vec3;
use truck_modeling::Solid;
use crate::command::{CadCommand, CmdResult};
use crate::scene::model_solid;
use crate::scene::wire_model::WireModel;
/// Which primitive a `PrimitiveCommand` builds.
#[derive(Clone, Copy, PartialEq, Eq)]
pub enum Shape {
Box,
Wedge,
Cylinder,
Cone,
Sphere,
Torus,
}
impl Shape {
fn from_id(id: &str) -> Option<Shape> {
Some(match id {
"BOX" => Shape::Box,
"WEDGE" => Shape::Wedge,
"CYLINDER" => Shape::Cylinder,
"CONE" => Shape::Cone,
"SPHERE" => Shape::Sphere,
"TORUS" => Shape::Torus,
_ => return None,
})
}
fn name(self) -> &'static str {
match self {
Shape::Box => "BOX",
Shape::Wedge => "WEDGE",
Shape::Cylinder => "CYLINDER",
Shape::Cone => "CONE",
Shape::Sphere => "SPHERE",
Shape::Torus => "TORUS",
}
}
/// True for footprints picked as a centre + radius (round shapes); false
/// for corner-to-corner footprints (box/wedge).
fn radial(self) -> bool {
!matches!(self, Shape::Box | Shape::Wedge)
}
/// Whether a height value is collected after the footprint.
fn needs_height(self) -> bool {
!matches!(self, Shape::Sphere | Shape::Torus)
}
}
pub struct PrimitiveCommand {
shape: Shape,
/// Footprint points collected so far (local/world XY, z = 0).
pts: Vec<Vec3>,
/// True once the footprint is set and we are collecting the height.
height_step: bool,
}
impl PrimitiveCommand {
pub fn new(id: &str) -> Self {
Self {
shape: Shape::from_id(id).unwrap_or(Shape::Box),
pts: Vec::new(),
height_step: false,
}
}
/// Number of footprint points the shape needs before the height step.
fn footprint_pts(&self) -> usize {
match self.shape {
Shape::Torus => 3, // centre, major-radius, minor-radius
_ => 2, // corner/corner or centre/radius
}
}
/// A reasonable default height when the user just presses Enter.
fn default_height(&self) -> f64 {
match self.shape {
Shape::Box | Shape::Wedge => {
let d = self.pts[1] - self.pts[0];
(d.x.abs().max(d.y.abs())) as f64
}
_ => (self.pts[1] - self.pts[0]).length() as f64,
}
.max(1.0)
}
/// Build both the acadrust `Solid3D` (ACIS, for persistence) and the truck
/// `Solid` B-rep (rendering + booleans) from the footprint + `height`.
fn build(&self, height: f64) -> Option<(EntityType, Solid)> {
let (doc, solid) = match self.shape {
Shape::Box | Shape::Wedge => {
let (a, b) = (self.pts[0], self.pts[1]);
let length = (b.x - a.x).abs() as f64;
let width = (b.y - a.y).abs() as f64;
if length < 1e-6 || width < 1e-6 || height < 1e-6 {
return None;
}
if self.shape == Shape::Box {
let center = [
(a.x + b.x) as f64 / 2.0,
(a.y + b.y) as f64 / 2.0,
height / 2.0,
];
(
primitives::build_box(center, length, width, height),
model_solid::box_solid(center, length, width, height),
)
} else {
let origin = [a.x.min(b.x) as f64, a.y.min(b.y) as f64, 0.0];
(
primitives::build_wedge(origin, length, width, height),
model_solid::wedge_solid(origin, length, width, height),
)
}
}
Shape::Cylinder | Shape::Cone => {
let c = self.pts[0];
let r = (self.pts[1] - c).length() as f64;
if r < 1e-6 || height < 1e-6 {
return None;
}
let center = [c.x as f64, c.y as f64, 0.0];
if self.shape == Shape::Cylinder {
(
primitives::build_cylinder(center, r, height),
model_solid::cylinder_solid(center, r, height),
)
} else {
(
primitives::build_cone(center, r, height),
model_solid::cone_solid(center, r, height),
)
}
}
Shape::Sphere => {
let c = self.pts[0];
let r = (self.pts[1] - c).length() as f64;
if r < 1e-6 {
return None;
}
let center = [c.x as f64, c.y as f64, 0.0];
(
primitives::build_sphere(center, r),
model_solid::sphere_solid(center, r),
)
}
Shape::Torus => {
let c = self.pts[0];
let major = (self.pts[1] - c).length() as f64;
let minor = (self.pts[2] - self.pts[1]).length() as f64;
if major < 1e-6 || minor < 1e-6 {
return None;
}
let center = [c.x as f64, c.y as f64, 0.0];
(
primitives::build_torus(center, major, minor),
model_solid::torus_solid(center, major, minor),
)
}
};
let mut s3d = Solid3D::new();
s3d.set_sat_document(&doc);
// Edge wires make the solid click-pickable and draw a wireframe over
// the shaded mesh.
s3d.wires = model_solid::edge_wires(&solid);
Some((EntityType::Solid3D(s3d), solid))
}
fn commit(&self, height: f64) -> CmdResult {
match self.build(height) {
Some((entity, solid)) => CmdResult::CommitSolid {
entity,
solid: Box::new(solid),
},
None => CmdResult::Cancel,
}
}
}
impl CadCommand for PrimitiveCommand {
fn name(&self) -> &'static str {
self.shape.name()
}
fn prompt(&self) -> String {
let n = self.shape.name();
if self.height_step {
return format!("{n} Specify height <Enter for default>:");
}
match (self.shape.radial(), self.pts.len()) {
(false, 0) => format!("{n} Specify first corner:"),
(false, _) => format!("{n} Specify opposite corner:"),
(true, 0) => format!("{n} Specify center point:"),
(true, 1) => format!("{n} Specify radius:"),
(true, _) => format!("{n} Specify tube radius:"),
}
}
fn on_point(&mut self, pt: Vec3) -> CmdResult {
if self.height_step {
// A click in the ground plane has no Z; use its distance from the
// footprint centre as the height magnitude.
let h = (pt - self.pts[0]).length() as f64;
return self.commit(h.max(1e-6));
}
self.pts.push(pt);
if self.pts.len() < self.footprint_pts() {
return CmdResult::NeedPoint;
}
// Footprint complete.
if self.shape.needs_height() {
self.height_step = true;
CmdResult::NeedPoint
} else {
self.commit(0.0)
}
}
fn on_enter(&mut self) -> CmdResult {
if self.height_step {
let h = self.default_height();
return self.commit(h);
}
CmdResult::Cancel
}
fn on_escape(&mut self) -> CmdResult {
CmdResult::Cancel
}
fn wants_text_input(&self) -> bool {
self.height_step
}
fn on_text_input(&mut self, raw: &str) -> Option<CmdResult> {
if !self.height_step {
return None;
}
let h: f64 = raw.trim().parse().ok().filter(|v| *v > 0.0)?;
Some(self.commit(h))
}
fn on_mouse_move(&mut self, pt: Vec3) -> Option<WireModel> {
if self.height_step || self.pts.is_empty() {
return None;
}
let mut foot = self.pts.clone();
foot.push(pt);
Some(footprint_wire(self.shape, &foot))
}
}
// ── Footprint preview ───────────────────────────────────────────────────────
fn footprint_wire(shape: Shape, pts: &[Vec3]) -> WireModel {
let mut points: Vec<[f32; 3]> = Vec::new();
if shape.radial() {
let c = pts[0];
let r = (pts[1] - c).length();
circle_points(&mut points, c, r);
if shape == Shape::Torus && pts.len() >= 3 {
// outer ring at major + minor for a quick torus hint
let minor = (pts[2] - pts[1]).length();
points.push([f32::NAN; 3]);
circle_points(&mut points, c, r + minor);
}
} else {
let (a, b) = (pts[0], pts[1]);
points.extend_from_slice(&[
[a.x, a.y, 0.0],
[b.x, a.y, 0.0],
[b.x, b.y, 0.0],
[a.x, b.y, 0.0],
[a.x, a.y, 0.0],
]);
}
wire("primitive_preview", points)
}
fn circle_points(out: &mut Vec<[f32; 3]>, c: Vec3, r: f32) {
const SEG: usize = 48;
for i in 0..=SEG {
let t = i as f32 / SEG as f32 * std::f32::consts::TAU;
out.push([c.x + r * t.cos(), c.y + r * t.sin(), 0.0]);
}
}
// ── Autocomplete registry ─────────────────────────────────
inventory::submit!(crate::command::CommandRegistration {
names: &["BOX", "WEDGE", "CYLINDER", "CONE", "SPHERE", "TORUS"]
});
fn wire(name: &str, points: Vec<[f32; 3]>) -> WireModel {
WireModel {
name: name.into(),
points,
color: WireModel::CYAN,
selected: false,
pattern_length: 0.0,
pattern: [0.0; 8],
line_weight_px: 1.0,
snap_pts: vec![],
tangent_geoms: vec![],
aci: 0,
key_vertices: vec![],
aabb: WireModel::UNBOUNDED_AABB,
plinegen: true,
vp_scissor: None,
fill_tris: vec![],
}
}

View file

@ -8,6 +8,7 @@ use crate::modules::CadModule;
pub fn all_modules() -> Vec<Box<dyn CadModule>> {
vec![
Box::new(super::home::HomeModule),
Box::new(super::model::ModelModule),
Box::new(super::insert::InsertModule),
Box::new(super::annotate::AnnotateModule),
Box::new(super::view::ViewModule),

View file

@ -10,6 +10,7 @@ pub mod hatch_patterns;
pub mod hit_test;
pub mod image_model;
pub mod mesh_model;
pub mod model_solid;
pub mod object;
pub mod paper_canvas;
pub mod pipeline;
@ -614,6 +615,11 @@ pub struct Scene {
pub hatches: HashMap<Handle, HatchModel>,
/// GPU render data for solid meshes (truck Shell/Solid tessellation).
pub meshes: HashMap<Handle, MeshLodSet>,
/// Live truck B-reps for solids created this session by the Model tab,
/// keyed by entity handle. Backs the Design-group boolean tools (a solid
/// must be here to be combined). Not persisted — rebuilt only by creating
/// or combining primitives in-session.
pub model_solids: HashMap<Handle, truck_modeling::Solid>,
/// GPU render data for raster images (RasterImage entities), keyed by handle.
pub images: HashMap<Handle, ImageModel>,
/// The viewport that is currently "entered" (MSPACE mode).
@ -703,6 +709,7 @@ impl Scene {
current_layout: "Model".to_string(),
hatches: HashMap::new(),
meshes: HashMap::new(),
model_solids: HashMap::new(),
images: HashMap::new(),
active_viewport: None,
bg_color: [0.11, 0.11, 0.11, 1.0],
@ -833,6 +840,23 @@ impl Scene {
}
/// Re-evaluate every cached mesh's color through `render_style` so a
/// Register a Model-tab solid: cache its truck B-rep (for boolean ops) and
/// tessellate it into the shaded mesh pipeline under `handle`. The solid is
/// in the same offset-relative frame the mesh pipeline uses, so the mesh is
/// stored as-is (Model-tab geometry is authored at world_offset 0).
pub fn register_model_solid(&mut self, handle: Handle, solid: truck_modeling::Solid) {
let color = self
.document
.get_entity(handle)
.map(|e| self.render_style(e).0)
.unwrap_or([0.8, 0.8, 0.85, 1.0]);
if let Some(set) = crate::scene::model_solid::mesh_from_solid(&solid, color) {
self.meshes.insert(handle, set);
}
self.model_solids.insert(handle, solid);
self.bump_geometry();
}
/// `BACKGROUND` change picks up the new `adapt_to_bg` result without
/// re-tessellating ACIS geometry. Caller must bump `geometry_epoch`
/// afterwards so the GPU re-uploads the now-updated colour data.
@ -2711,6 +2735,7 @@ impl Scene {
for h in &to_remove {
self.hatches.remove(h);
self.meshes.remove(h);
self.model_solids.remove(h);
self.document.remove_entity(*h);
}
@ -4070,6 +4095,7 @@ impl Scene {
self.selected.remove(&h);
self.hatches.remove(&h);
self.meshes.remove(&h);
self.model_solids.remove(&h);
}
// Remove erased handles from all groups; delete groups that become empty.
let group_dict_handle = self.document.header.acad_group_dict_handle;

216
src/scene/model_solid.rs Normal file
View file

@ -0,0 +1,216 @@
// truck B-rep construction for the Model tab's primitives, plus tessellation
// into the renderer's `MeshLodSet`. Each builder follows truck's own example
// recipes (tsweep / rsweep / cone / try_attach_plane), oriented Z-up with the
// footprint on the z = `base_z` plane to match acadrust's `acis::primitives`.
//
// The resulting truck `Solid` is cached per entity handle on the Scene so the
// Design-group boolean tools can run truck-shapeops on it.
use truck_modeling::{builder, Point3, Rad, Solid, Vector3, Wire};
use crate::scene::mesh_model::{MeshLodSet, MeshModel};
const FULL: f64 = 7.0; // > 2π → builder closes the revolution
/// Axis-aligned box from its center and full extents.
pub fn box_solid(center: [f64; 3], length: f64, width: f64, height: f64) -> Solid {
let min = Point3::new(
center[0] - length / 2.0,
center[1] - width / 2.0,
center[2] - height / 2.0,
);
let v = builder::vertex(min);
let e = builder::tsweep(&v, Vector3::new(length, 0.0, 0.0));
let f = builder::tsweep(&e, Vector3::new(0.0, width, 0.0));
builder::tsweep(&f, Vector3::new(0.0, 0.0, height))
}
/// Right triangular prism (wedge): right-triangle cross-section in XZ,
/// extruded along Y. `origin` is the min corner, ramp rising in +X/+Z.
pub fn wedge_solid(origin: [f64; 3], length: f64, width: f64, height: f64) -> Solid {
let o = Point3::new(origin[0], origin[1], origin[2]);
let a = builder::vertex(o);
let b = builder::vertex(Point3::new(o.x + length, o.y, o.z));
let c = builder::vertex(Point3::new(o.x, o.y, o.z + height));
let wire: Wire = vec![
builder::line(&a, &b),
builder::line(&b, &c),
builder::line(&c, &a),
]
.into();
let face = builder::try_attach_plane(&[wire]).expect("wedge profile");
builder::tsweep(&face, Vector3::new(0.0, width, 0.0))
}
/// Solid cylinder: disk on the z = base plane, extruded up by `height`.
pub fn cylinder_solid(center: [f64; 3], radius: f64, height: f64) -> Solid {
let v = builder::vertex(Point3::new(center[0] + radius, center[1], center[2]));
let circle = builder::rsweep(
&v,
Point3::new(center[0], center[1], center[2]),
Vector3::unit_z(),
Rad(FULL),
);
let disk = builder::try_attach_plane(&[circle]).expect("cylinder cap");
builder::tsweep(&disk, Vector3::new(0.0, 0.0, height))
}
/// Solid cone: profile (apex → rim → base-center) revolved about the axis.
pub fn cone_solid(center: [f64; 3], radius: f64, height: f64) -> Solid {
let cx = center[0];
let cy = center[1];
let cz = center[2];
let apex = builder::vertex(Point3::new(cx, cy, cz + height));
let rim = builder::vertex(Point3::new(cx + radius, cy, cz));
let base = builder::vertex(Point3::new(cx, cy, cz));
let wire: Wire = vec![builder::line(&apex, &rim), builder::line(&rim, &base)].into();
let shell = builder::cone(&wire, Vector3::unit_z(), Rad(FULL));
Solid::new(vec![shell])
}
/// Solid sphere: meridian semicircle revolved about the polar (Z) axis.
pub fn sphere_solid(center: [f64; 3], radius: f64) -> Solid {
let c = Point3::new(center[0], center[1], center[2]);
let top = builder::vertex(Point3::new(c.x, c.y, c.z + radius));
// Rotate the top point about the X axis by π → meridian from +Z to Z.
let meridian: Wire = builder::rsweep(&top, c, Vector3::unit_x(), Rad(std::f64::consts::PI));
let shell = builder::cone(&meridian, Vector3::unit_z(), Rad(FULL));
Solid::new(vec![shell])
}
/// Solid torus in the z = base plane (tube revolved about the Z axis).
pub fn torus_solid(center: [f64; 3], major: f64, minor: f64) -> Solid {
let c = Point3::new(center[0], center[1], center[2]);
let v = builder::vertex(Point3::new(c.x + major, c.y, c.z + minor));
let tube = builder::rsweep(
&v,
Point3::new(c.x + major, c.y, c.z),
Vector3::unit_y(),
Rad(FULL),
);
let shell = builder::rsweep(&tube, c, Vector3::unit_z(), Rad(FULL));
Solid::new(vec![shell])
}
// ── Edge extraction (pick geometry + wireframe overlay) ─────────────────────
/// Tessellate the solid's B-rep edges into acadrust `Wire`s. Stored on the
/// `Solid3D`/result entity so it is click-pickable (the renderer's wire
/// fallback draws these as a wireframe over the shaded mesh, and hit-testing
/// uses their points).
pub fn edge_wires(solid: &Solid) -> Vec<acadrust::entities::Wire> {
use crate::scene::truck_tess::{tessellate_edge, TruckTessResult};
use acadrust::types::Vector3;
let mut wires = Vec::new();
for shell in solid.boundaries() {
for edge in shell.edge_iter() {
if let TruckTessResult::Lines(pts) = tessellate_edge(&edge, [0.0; 3]) {
if pts.len() < 2 {
continue;
}
let pts3: Vec<Vector3> = pts
.iter()
.map(|p| Vector3::new(p[0] as f64, p[1] as f64, p[2] as f64))
.collect();
wires.push(acadrust::entities::Wire::from_points(pts3));
}
}
}
wires
}
// ── Boolean operations (truck-shapeops) ─────────────────────────────────────
/// Which CSG to apply. Mirrors `model::boolean_cmd::BoolOp` but kept local so
/// this scene module has no dependency on the UI module.
#[derive(Clone, Copy)]
pub enum Bool {
Union,
Subtract,
Intersect,
}
const BOOL_TOL: f64 = 0.05;
/// Combine two solids. `Subtract` removes `b` from `a`. Returns `None` when the
/// operation fails (e.g. the solids don't actually overlap).
pub fn boolean(op: Bool, a: &Solid, b: &Solid) -> Option<Solid> {
match op {
Bool::Union => truck_shapeops::or(a, b, BOOL_TOL),
Bool::Intersect => truck_shapeops::and(a, b, BOOL_TOL),
Bool::Subtract => {
let mut bn = b.clone();
bn.not();
truck_shapeops::and(a, &bn, BOOL_TOL)
}
}
}
// ── Tessellation ────────────────────────────────────────────────────────────
/// Tessellate a truck `Solid` into a single-LOD `MeshLodSet` (world-space,
/// before world_offset is applied by the caller).
pub fn mesh_from_solid(solid: &Solid, color: [f32; 4]) -> Option<MeshLodSet> {
use crate::scene::truck_tess::{tessellate_solid, TruckTessResult};
match tessellate_solid(solid, [0.0; 3]) {
TruckTessResult::Mesh {
verts,
normals,
indices,
} if !indices.is_empty() => {
let mesh = MeshModel {
name: String::new(),
verts,
normals,
indices,
color,
selected: false,
};
Some(MeshLodSet::from_single(mesh))
}
_ => None,
}
}
#[cfg(test)]
mod tests {
use super::*;
fn tri_count(s: &Solid) -> usize {
mesh_from_solid(s, [0.7, 0.7, 0.7, 1.0])
.map(|m| m.lods[0].indices.len() / 3)
.unwrap_or(0)
}
#[test]
fn all_primitives_triangulate() {
let c = [0.0, 0.0, 0.0];
assert!(tri_count(&box_solid(c, 10.0, 10.0, 10.0)) >= 12, "box");
assert!(tri_count(&wedge_solid(c, 10.0, 10.0, 10.0)) >= 6, "wedge");
assert!(tri_count(&cylinder_solid(c, 5.0, 12.0)) > 20, "cylinder");
assert!(tri_count(&cone_solid(c, 5.0, 12.0)) > 10, "cone");
assert!(tri_count(&sphere_solid(c, 5.0)) > 50, "sphere");
assert!(tri_count(&torus_solid(c, 8.0, 2.0)) > 50, "torus");
}
#[test]
fn booleans_produce_solids() {
let a = box_solid([0.0, 0.0, 0.0], 10.0, 10.0, 10.0);
let b = box_solid([5.0, 5.0, 5.0], 10.0, 10.0, 10.0);
for (op, label) in [
(Bool::Union, "union"),
(Bool::Subtract, "subtract"),
(Bool::Intersect, "intersect"),
] {
let r = boolean(op, &a, &b);
let n = r.as_ref().map(tri_count).unwrap_or(0);
eprintln!("{label}: tris={n}");
assert!(r.is_some() && n > 0, "{label} produced nothing");
}
}
#[test]
fn box_exposes_edges() {
assert!(edge_wires(&box_solid([0.0, 0.0, 0.0], 10.0, 10.0, 10.0)).len() >= 12);
}
}