support adding lines to sketches

packages/cadmium/src/main.rs

@@ -52,7 +52,7 @@ fn stacked_cubes() {
     });
     el.append(Operation::SetSketchName {
         sketch_id: sketch_id.clone(),
-        name: "Sketch1".to_string(),
+        name: "Original Sketch".to_string(),
     });
     el.append(Operation::SetSketchPlane {
         sketch_id: sketch_id.clone(),

packages/cadmium/src/oplog/mod.rs

@@ -4,7 +4,7 @@ use std::collections::HashMap;
 use std::hash::{Hash, Hasher};
 use std::process::id;
 
-use crate::project::{Plane, Project, Workbench};
+use crate::project::{Plane, PlaneDescription, Project, StepData, Workbench};
 
 pub type Sha = String;
 
@@ -291,8 +291,8 @@ impl EvolutionLog {
                     let step_idx = wb.step_id_from_unique_id(step_id).unwrap();
                     let step = wb.history.get_mut(step_idx as usize).unwrap();
                     let new_plane = plane; // this is just to change the name to avoid a collision
-                    if let crate::project::StepData::Plane { plane, .. } = &mut step.data {
-                        let temp_plane = std::mem::replace(plane, new_plane.clone());
+                    if let StepData::Plane { plane, .. } = &mut step.data {
+                        *plane = new_plane.clone();
                     } else {
                         unreachable!()
                     };
@@ -306,6 +306,46 @@ impl EvolutionLog {
                     let sketch_id = wb.add_blank_sketch("Untitled-Sketch");
                     sketches.insert(commit.id.clone(), (*workbench_index, sketch_id));
                 }
+                Operation::SetSketchName { sketch_id, name } => {
+                    let (workbench_idx, step_id) = sketches.get(sketch_id).unwrap();
+                    let mut wb = project.workbenches.get_mut(*workbench_idx).unwrap();
+                    let step_idx = wb.step_id_from_unique_id(step_id).unwrap();
+                    wb.history.get_mut(step_idx as usize).unwrap().name = name.to_owned();
+                }
+                Operation::SetSketchPlane {
+                    sketch_id,
+                    plane_id,
+                } => {
+                    let (workbench_idx_sketch, sketch_id) = sketches.get(sketch_id).unwrap();
+                    let (workbench_idx_plane, plane_id) = planes.get(plane_id).unwrap();
+                    assert_eq!(workbench_idx_sketch, workbench_idx_plane);
+                    let mut wb = project.workbenches.get_mut(*workbench_idx_plane).unwrap();
+                    let step_idx = wb.step_id_from_unique_id(sketch_id).unwrap();
+                    let step = wb.history.get_mut(step_idx as usize).unwrap();
+                    if let StepData::Sketch {
+                        plane_description, ..
+                    } = &mut step.data
+                    {
+                        *plane_description = PlaneDescription::PlaneId(plane_id.clone());
+                    } else {
+                        unreachable!()
+                    };
+                }
+                Operation::AddSketchLine {
+                    sketch_id,
+                    start,
+                    end,
+                } => {
+                    let (workbench_idx, sketch_id) = sketches.get(sketch_id).unwrap();
+                    let mut wb = project.workbenches.get_mut(*workbench_idx).unwrap();
+                    let step_idx = wb.step_id_from_unique_id(sketch_id).unwrap();
+                    let step = wb.history.get_mut(step_idx as usize).unwrap();
+                    if let StepData::Sketch { sketch, .. } = &mut step.data {
+                        sketch.add_line_segment(start.0, start.1, end.0, end.1);
+                    } else {
+                        unreachable!()
+                    };
+                }
                 _ => {}
             }
         }

packages/cadmium/src/sketch/mod.rs

@@ -1,12 +1,12 @@
 #![allow(unused)]
-use serde::{Deserialize, Serialize};
-use tsify::Tsify;
-use serde_with::{serde_as, DisplayFromStr};
 use geo::line_intersection::{line_intersection, LineIntersection};
 use geo::Line;
 use geo::{point, Contains};
 use geo::{within, Intersects};
+use serde::{Deserialize, Serialize};
+use serde_with::{serde_as, DisplayFromStr};
 use truck_polymesh::stl::PolygonMeshSTLFaceIterator;
+use tsify::Tsify;
 
 use core::panic;
 use geo::LineString;
@@ -335,6 +335,15 @@ impl Sketch {
         id
     }
 
+    pub fn add_or_get_point(&mut self, x: f64, y: f64) -> u64 {
+        for (id, point) in self.points.iter() {
+            if (point.x - x).abs() < 1e-6 && (point.y - y).abs() < 1e-6 {
+                return *id;
+            }
+        }
+        self.add_point(x, y)
+    }
+
     pub fn add_hidden_point(&mut self, x: f64, y: f64) -> u64 {
         let id = self.highest_point_id + 1;
         self.points.insert(id, Point2::new_hidden(x, y));
@@ -457,8 +466,8 @@ impl Sketch {
     }
 
     pub fn add_line_segment(&mut self, x0: f64, y0: f64, x1: f64, y1: f64) -> u64 {
-        let id0 = self.add_point(x0, y0);
-        let id1 = self.add_point(x1, y1);
+        let id0 = self.add_or_get_point(x0, y0);
+        let id1 = self.add_or_get_point(x1, y1);
         let l = Line2 {
             start: id0,
             end: id1,