refactor: get rid of unnecessary bounds on struct generics

crates/specctra-core/src/read.rs

@@ -117,7 +117,7 @@ pub struct ListTokenizer<R> {
     column: usize,
 }
 
-impl<R: std::io::BufRead> ListTokenizer<R> {
+impl<R> ListTokenizer<R> {
     pub fn new(reader: R) -> Self {
         Self {
             reader,
@@ -140,7 +140,9 @@ impl<R: std::io::BufRead> ListTokenizer<R> {
             context: (self.line, self.column),
         }
     }
+}
 
+impl<R: std::io::BufRead> ListTokenizer<R> {
     fn next_char(&mut self) -> Result<char, ParseErrorContext> {
         let return_chr = self.peek_char()?;
         self.reset_char();

crates/specctra-core/src/write.rs

@@ -66,14 +66,14 @@ impl<W: io::Write> WriteSes<W> for f64 {
     }
 }
 
-pub struct ListWriter<W: io::Write> {
+pub struct ListWriter<W> {
     writable: W,
     indent_level: usize,
     multiline_level: usize,
     pub line_len: usize,
 }
 
-impl<W: io::Write> ListWriter<W> {
+impl<W> ListWriter<W> {
     pub fn new(writable: W) -> Self {
         Self {
             writable,
@@ -82,7 +82,9 @@ impl<W: io::Write> ListWriter<W> {
             line_len: 0,
         }
     }
+}
 
+impl<W: io::Write> ListWriter<W> {
     pub fn write_token(&mut self, token: ListToken) -> Result<(), io::Error> {
         let len = token.len();
 

src/autorouter/autorouter.rs

@@ -47,7 +47,7 @@ pub enum AutorouterError {
 }
 
 #[derive(Getters)]
-pub struct Autorouter<M: AccessMesadata> {
+pub struct Autorouter<M> {
     pub(super) board: Board<M>,
     pub(super) ratsnest: Ratsnest,
 }

src/autorouter/invoker.rs

@@ -80,7 +80,7 @@ pub enum InvokerError {
 
 #[derive(Getters, Dissolve)]
 /// Structure that manages the execution and history of commands within the autorouting system
-pub struct Invoker<M: AccessMesadata> {
+pub struct Invoker<M> {
     /// Instance for executing desired autorouting commands
     pub(super) autorouter: Autorouter<M>,
     /// History of executed commands

src/board/mod.rs

@@ -52,7 +52,7 @@ impl BandName {
 /// The struct manages the relationships between board's layout,
 /// and its compounds, as well as provides methods to manipulate them.
 #[derive(Debug, Getters)]
-pub struct Board<M: AccessMesadata> {
+pub struct Board<M> {
     layout: Layout<M>,
     // TODO: Simplify access logic to these members so that `#[getter(skip)]`s can be removed.
     #[getter(skip)]
@@ -61,7 +61,7 @@ pub struct Board<M: AccessMesadata> {
     band_bandname: BiHashMap<BandUid, BandName>,
 }
 
-impl<M: AccessMesadata> Board<M> {
+impl<M> Board<M> {
     /// Initializes the board with given [`Layout`]
     pub fn new(layout: Layout<M>) -> Self {
         Self {
@@ -71,6 +71,13 @@ impl<M: AccessMesadata> Board<M> {
         }
     }
 
+    /// Returns a mutable reference to the layout, allowing modifications.
+    pub fn layout_mut(&mut self) -> &mut Layout<M> {
+        &mut self.layout
+    }
+}
+
+impl<M: AccessMesadata> Board<M> {
     /// Adds a new fixed dot with an optional pin name.
     ///
     /// Inserts the dot into the layout and, if a pin name is provided, maps it to the created dot's node.
@@ -249,11 +256,6 @@ impl<M: AccessMesadata> Board<M> {
     pub fn mesadata(&self) -> &M {
         self.layout.drawing().rules()
     }
-
-    /// Returns a mutable reference to the layout, allowing modifications.
-    pub fn layout_mut(&mut self) -> &mut Layout<M> {
-        &mut self.layout
-    }
 }
 
 impl<M: AccessMesadata>

src/drawing/band.rs

@@ -56,20 +56,18 @@ impl From<BandTermsegIndex> for LooseIndex {
     }
 }
 
-impl<'a, CW: Copy, R: AccessRules> MakeRef<'a, BandRef<'a, CW, R>, Drawing<CW, R>>
-    for BandTermsegIndex
-{
+impl<'a, CW, R> MakeRef<'a, BandRef<'a, CW, R>, Drawing<CW, R>> for BandTermsegIndex {
     fn ref_(&self, drawing: &'a Drawing<CW, R>) -> BandRef<'a, CW, R> {
         BandRef::new(*self, drawing)
     }
 }
 
-pub struct BandRef<'a, CW: Copy, R: AccessRules> {
+pub struct BandRef<'a, CW, R> {
     first_seg: BandTermsegIndex,
     drawing: &'a Drawing<CW, R>,
 }
 
-impl<'a, CW: Copy, R: AccessRules> BandRef<'a, CW, R> {
+impl<'a, CW, R> BandRef<'a, CW, R> {
     pub fn new(first_seg: BandTermsegIndex, drawing: &'a Drawing<CW, R>) -> BandRef<'a, CW, R> {
         Self { first_seg, drawing }
     }

src/drawing/collect.rs

@@ -12,15 +12,17 @@ use super::{
 };
 
 #[derive(Debug)]
-pub struct Collect<'a, CW: Copy, R: AccessRules> {
+pub struct Collect<'a, CW, R> {
     drawing: &'a Drawing<CW, R>,
 }
 
-impl<'a, CW: Copy, R: AccessRules> Collect<'a, CW, R> {
+impl<'a, CW, R> Collect<'a, CW, R> {
     pub fn new(drawing: &'a Drawing<CW, R>) -> Self {
         Self { drawing }
     }
+}
 
+impl<'a, CW: Copy, R: AccessRules> Collect<'a, CW, R> {
     pub fn loose_band_uid(&self, start_loose: LooseIndex) -> BandUid {
         BandUid::new(
             self.loose_band_first_seg(start_loose),

src/drawing/drawing.rs

@@ -66,7 +66,7 @@ pub struct Collision(pub PrimitiveShape, pub PrimitiveIndex);
 #[error("{1:?} is already connected to net {0}")]
 pub struct AlreadyConnected(pub usize, pub PrimitiveIndex);
 
-pub type DrawingEdit<CW: Copy> = GeometryEdit<
+pub type DrawingEdit<CW> = GeometryEdit<
     PrimitiveWeight,
     DotWeight,
     SegWeight,
@@ -79,7 +79,7 @@ pub type DrawingEdit<CW: Copy> = GeometryEdit<
 >;
 
 #[derive(Debug, Getters)]
-pub struct Drawing<CW: Copy, R: AccessRules> {
+pub struct Drawing<CW, R> {
     recording_geometry_with_rtree: RecordingGeometryWithRtree<
         PrimitiveWeight,
         DotWeight,

src/drawing/guide.rs

@@ -18,15 +18,17 @@ use super::{
     Drawing,
 };
 
-pub struct Guide<'a, CW: Copy, R: AccessRules> {
+pub struct Guide<'a, CW, R> {
     drawing: &'a Drawing<CW, R>,
 }
 
-impl<'a, CW: Copy, R: AccessRules> Guide<'a, CW, R> {
+impl<'a, CW, R> Guide<'a, CW, R> {
     pub fn new(drawing: &'a Drawing<CW, R>) -> Self {
         Self { drawing }
     }
+}
 
+impl<'a, CW: Copy, R: AccessRules> Guide<'a, CW, R> {
     pub fn head_into_dot_segment(
         &self,
         head: &Head,

src/drawing/head.rs

@@ -25,7 +25,7 @@ pub enum Head {
     Cane(CaneHead),
 }
 
-impl<'a, CW: Copy, R: AccessRules> MakeRef<'a, HeadRef<'a, CW, R>, Drawing<CW, R>> for Head {
+impl<'a, CW, R> MakeRef<'a, HeadRef<'a, CW, R>, Drawing<CW, R>> for Head {
     fn ref_(&self, drawing: &'a Drawing<CW, R>) -> HeadRef<'a, CW, R> {
         HeadRef::new(*self, drawing)
     }
@@ -67,18 +67,18 @@ impl GetFace for CaneHead {
     }
 }
 
-pub struct HeadRef<'a, CW: Copy, R: AccessRules> {
+pub struct HeadRef<'a, CW, R> {
     head: Head,
     drawing: &'a Drawing<CW, R>,
 }
 
-impl<'a, CW: Copy, R: AccessRules> HeadRef<'a, CW, R> {
+impl<'a, CW, R> HeadRef<'a, CW, R> {
     pub fn new(head: Head, drawing: &'a Drawing<CW, R>) -> Self {
         Self { drawing, head }
     }
 }
 
-impl<'a, CW: Copy, R: AccessRules> GetFace for HeadRef<'a, CW, R> {
+impl<'a, CW, R> GetFace for HeadRef<'a, CW, R> {
     fn face(&self) -> DotIndex {
         self.head.face()
     }

src/geometry/edit.rs

@@ -23,17 +23,7 @@ pub trait ApplyGeometryEdit<
 }
 
 #[derive(Debug, Clone)]
-pub struct GeometryEdit<
-    PW: GetWidth + GetLayer + TryInto<DW> + TryInto<SW> + TryInto<BW> + Retag<PI> + Copy,
-    DW: AccessDotWeight<PW> + GetLayer,
-    SW: AccessSegWeight<PW> + GetLayer,
-    BW: AccessBendWeight<PW> + GetLayer,
-    CW: Copy,
-    PI: GetPetgraphIndex + TryInto<DI> + TryInto<SI> + TryInto<BI> + Eq + Hash + Copy,
-    DI: GetPetgraphIndex + Into<PI> + Eq + Hash + Copy,
-    SI: GetPetgraphIndex + Into<PI> + Eq + Hash + Copy,
-    BI: GetPetgraphIndex + Into<PI> + Eq + Hash + Copy,
-> {
+pub struct GeometryEdit<PW, DW, SW, BW, CW, PI, DI, SI, BI> {
     pub(super) dots: HashMap<DI, (Option<DW>, Option<DW>)>,
     pub(super) segs: HashMap<SI, (Option<((DI, DI), SW)>, Option<((DI, DI), SW)>)>,
     pub(super) bends: HashMap<BI, (Option<((DI, DI, DI), BW)>, Option<((DI, DI, DI), BW)>)>,

src/geometry/geometry.rs

@@ -70,17 +70,7 @@ pub trait AccessSegWeight<PW>: GetWidth + Into<PW> + Copy {}
 pub trait AccessBendWeight<PW>: GetOffset + SetOffset + GetWidth + Into<PW> + Copy {}
 
 #[derive(Debug, Getters)]
-pub struct Geometry<
-    PW: GetWidth + TryInto<DW> + TryInto<SW> + TryInto<BW> + Retag<PI> + Copy,
-    DW: AccessDotWeight<PW>,
-    SW: AccessSegWeight<PW>,
-    BW: AccessBendWeight<PW>,
-    CW: Copy,
-    PI: GetPetgraphIndex + TryInto<DI> + TryInto<SI> + TryInto<BI> + Copy,
-    DI: GetPetgraphIndex + Into<PI> + Copy,
-    SI: GetPetgraphIndex + Into<PI> + Copy,
-    BI: GetPetgraphIndex + Into<PI> + Copy,
-> {
+pub struct Geometry<PW, DW, SW, BW, CW, PI, DI, SI, BI> {
     graph: StableDiGraph<GenericNode<PW, CW>, GeometryLabel, usize>,
     primitive_weight_marker: PhantomData<PW>,
     dot_weight_marker: PhantomData<DW>,

src/geometry/recording_with_rtree.rs

@@ -19,17 +19,7 @@ use super::{
 };
 
 #[derive(Debug)]
-pub struct RecordingGeometryWithRtree<
-    PW: GetWidth + GetLayer + TryInto<DW> + TryInto<SW> + TryInto<BW> + Retag<PI> + Copy,
-    DW: AccessDotWeight<PW> + GetLayer,
-    SW: AccessSegWeight<PW> + GetLayer,
-    BW: AccessBendWeight<PW> + GetLayer,
-    CW: Copy,
-    PI: GetPetgraphIndex + TryInto<DI> + TryInto<SI> + TryInto<BI> + Eq + Hash + Copy,
-    DI: GetPetgraphIndex + Into<PI> + Eq + Hash + Copy,
-    SI: GetPetgraphIndex + Into<PI> + Eq + Hash + Copy,
-    BI: GetPetgraphIndex + Into<PI> + Eq + Hash + Copy,
-> {
+pub struct RecordingGeometryWithRtree<PW, DW, SW, BW, CW, PI, DI, SI, BI> {
     geometry_with_rtree: GeometryWithRtree<PW, DW, SW, BW, CW, PI, DI, SI, BI>,
 }
 

src/geometry/with_rtree.rs

@@ -36,17 +36,7 @@ impl RTreeObject for Bbox {
 pub type BboxedIndex<I> = GeomWithData<Bbox, I>;
 
 #[derive(Debug, Getters)]
-pub struct GeometryWithRtree<
-    PW: GetWidth + GetLayer + TryInto<DW> + TryInto<SW> + TryInto<BW> + Retag<PI> + Copy,
-    DW: AccessDotWeight<PW> + GetLayer,
-    SW: AccessSegWeight<PW> + GetLayer,
-    BW: AccessBendWeight<PW> + GetLayer,
-    CW: Copy,
-    PI: GetPetgraphIndex + TryInto<DI> + TryInto<SI> + TryInto<BI> + Copy,
-    DI: GetPetgraphIndex + Into<PI> + Copy,
-    SI: GetPetgraphIndex + Into<PI> + Copy,
-    BI: GetPetgraphIndex + Into<PI> + Copy,
-> {
+pub struct GeometryWithRtree<PW, DW, SW, BW, CW, PI, DI, SI, BI> {
     geometry: Geometry<PW, DW, SW, BW, CW, PI, DI, SI, BI>,
     rtree: RTree<BboxedIndex<GenericNode<PI, GenericIndex<CW>>>>,
     layer_count: usize,

src/interactor/activity.rs

@@ -25,7 +25,7 @@ pub struct InteractiveInput {
 }
 
 /// This is the execution context passed to the stepper on each step
-pub struct ActivityContext<'a, M: AccessMesadata> {
+pub struct ActivityContext<'a, M> {
     pub interactive_input: &'a InteractiveInput,
     pub invoker: &'a mut Invoker<M>,
 }

src/interactor/interactor.rs

@@ -17,7 +17,7 @@ use crate::{
 };
 
 /// Structure that manages the invoker and activities
-pub struct Interactor<M: AccessMesadata> {
+pub struct Interactor<M> {
     invoker: Invoker<M>,
     activity: Option<ActivityStepperWithStatus>,
 }

src/layout/layout.rs

@@ -43,15 +43,17 @@ pub type LayoutEdit = DrawingEdit<CompoundWeight>;
 
 #[derive(Debug, Getters)]
 /// Structure for managing the Layout design
-pub struct Layout<R: AccessRules> {
+pub struct Layout<R> {
     drawing: Drawing<CompoundWeight, R>,
 }
 
-impl<R: AccessRules> Layout<R> {
+impl<R> Layout<R> {
     pub fn new(drawing: Drawing<CompoundWeight, R>) -> Self {
         Self { drawing }
     }
+}
 
+impl<R: AccessRules> Layout<R> {
     /// Insert [`Cane`] object into the [`Layout`]
     pub fn insert_cane(
         &mut self,

src/layout/poly.rs

@@ -28,7 +28,7 @@ pub trait GetMaybeApex {
 }
 
 #[derive(Debug)]
-pub struct Poly<'a, R: AccessRules> {
+pub struct Poly<'a, R> {
     pub index: GenericIndex<PolyWeight>,
     layout: &'a Layout<R>,
 }

src/layout/via.rs

@@ -11,12 +11,12 @@ use crate::{
 };
 
 #[derive(Debug)]
-pub struct Via<'a, R: AccessRules> {
+pub struct Via<'a, R> {
     pub index: GenericIndex<ViaWeight>,
     layout: &'a Layout<R>,
 }
 
-impl<'a, R: AccessRules> Via<'a, R> {
+impl<'a, R> Via<'a, R> {
     pub fn new(index: GenericIndex<ViaWeight>, layout: &'a Layout<R>) -> Self {
         Self { index, layout }
     }

src/router/draw.rs

@@ -34,7 +34,7 @@ pub enum DrawException {
 /// This struct is a simple wrapper whose sole purpose is to have a separate
 /// file for the router module's routines for drawing and erasing the primitives
 /// to pull out or contract the currently routed band.
-pub struct Draw<'a, R: AccessRules> {
+pub struct Draw<'a, R> {
     layout: &'a mut Layout<R>,
 }
 

src/router/navcord.rs

@@ -120,7 +120,7 @@ impl NavcordStepper {
     }
 }
 
-pub struct NavcordStepContext<'a: 'b, 'b, R: AccessRules> {
+pub struct NavcordStepContext<'a: 'b, 'b, R> {
     pub navcorder: &'b mut Navcorder<'a, R>,
     pub navmesh: &'b Navmesh,
     pub to: NavvertexIndex,

src/router/navcorder.rs

@@ -21,15 +21,17 @@ pub enum NavcorderException {
 }
 
 #[derive(Debug)]
-pub struct Navcorder<'a, R: AccessRules> {
+pub struct Navcorder<'a, R> {
     pub layout: &'a mut Layout<R>,
 }
 
-impl<'a, R: AccessRules> Navcorder<'a, R> {
+impl<'a, R> Navcorder<'a, R> {
     pub fn new(layout: &mut Layout<R>) -> Navcorder<R> {
         Navcorder { layout }
     }
+}
 
+impl<'a, R: AccessRules> Navcorder<'a, R> {
     pub fn start(
         &mut self,
         recorder: LayoutEdit,

src/router/router.rs

@@ -38,7 +38,7 @@ pub struct RouterOptions {
 }
 
 #[derive(Debug)]
-pub struct RouterAstarStrategy<'a, R: AccessRules> {
+pub struct RouterAstarStrategy<'a, R> {
     pub navcorder: Navcorder<'a, R>,
     pub navcord: &'a mut NavcordStepper,
     pub target: FixedDotIndex,
@@ -46,7 +46,7 @@ pub struct RouterAstarStrategy<'a, R: AccessRules> {
     pub probe_obstacles: Vec<PrimitiveIndex>,
 }
 
-impl<'a, R: AccessRules> RouterAstarStrategy<'a, R> {
+impl<'a, R> RouterAstarStrategy<'a, R> {
     pub fn new(
         navcorder: Navcorder<'a, R>,
         navcord: &'a mut NavcordStepper,
@@ -60,7 +60,9 @@ impl<'a, R: AccessRules> RouterAstarStrategy<'a, R> {
             probe_obstacles: vec![],
         }
     }
+}
 
+impl<'a, R: AccessRules> RouterAstarStrategy<'a, R> {
     fn bihead_length(&self) -> f64 {
         self.navcord
             .head

src/triangulation.rs

@@ -12,21 +12,14 @@ pub trait GetTrianvertexNodeIndex<I> {
 }
 
 #[derive(Debug, Clone)]
-pub struct Triangulation<
-    I: Copy + PartialEq + GetPetgraphIndex,
-    VW: GetTrianvertexNodeIndex<I> + HasPosition,
-    EW: Copy + Default,
-> {
+pub struct Triangulation<I, VW: GetTrianvertexNodeIndex<I> + HasPosition, EW: Default> {
     triangulation: DelaunayTriangulation<VW, EW>,
     trianvertex_to_handle: Box<[Option<FixedVertexHandle>]>,
     index_marker: PhantomData<I>,
 }
 
-impl<
-        I: Copy + PartialEq + GetPetgraphIndex,
-        VW: GetTrianvertexNodeIndex<I> + HasPosition<Scalar = f64>,
-        EW: Copy + Default,
-    > Triangulation<I, VW, EW>
+impl<I: GetPetgraphIndex, VW: GetTrianvertexNodeIndex<I> + HasPosition, EW: Default>
+    Triangulation<I, VW, EW>
 {
     pub fn new(node_bound: usize) -> Self {
         Self {
@@ -57,12 +50,6 @@ impl<
         )
     }
 
-    pub fn position(&self, vertex: I) -> Point {
-        let position =
-            spade::Triangulation::vertex(&self.triangulation, self.handle(vertex)).position();
-        point! {x: position.x, y: position.y}
-    }
-
     fn vertex(&self, handle: FixedVertexHandle) -> I {
         spade::Triangulation::vertex(&self.triangulation, handle)
             .as_ref()
@@ -72,12 +59,21 @@ impl<
     fn handle(&self, vertex: I) -> FixedVertexHandle {
         self.trianvertex_to_handle[vertex.petgraph_index().index()].unwrap()
     }
+
+    pub fn position(&self, vertex: I) -> Point<<VW as HasPosition>::Scalar>
+    where
+        <VW as HasPosition>::Scalar: geo::CoordNum,
+    {
+        let position =
+            spade::Triangulation::vertex(&self.triangulation, self.handle(vertex)).position();
+        point! {x: position.x, y: position.y}
+    }
 }
 
 impl<
         I: Copy + PartialEq + GetPetgraphIndex,
-        VW: GetTrianvertexNodeIndex<I> + HasPosition<Scalar = f64>,
-        EW: Copy + Default,
+        VW: GetTrianvertexNodeIndex<I> + HasPosition,
+        EW: Default,
     > visit::GraphBase for Triangulation<I, VW, EW>
 {
     type NodeId = I;
@@ -85,18 +81,18 @@ impl<
 }
 
 #[derive(Debug, Clone, Copy)]
-pub struct TriangulationEdgeWeightWrapper<EW: Copy + Default> {
+pub struct TriangulationEdgeWeightWrapper<EW> {
     length: f64,
     pub weight: EW,
 }
 
-impl<EW: Copy + Default> PartialEq for TriangulationEdgeWeightWrapper<EW> {
+impl<EW> PartialEq for TriangulationEdgeWeightWrapper<EW> {
     fn eq(&self, other: &Self) -> bool {
         self.length.eq(&other.length)
     }
 }
 
-impl<EW: Copy + Default> PartialOrd for TriangulationEdgeWeightWrapper<EW> {
+impl<EW> PartialOrd for TriangulationEdgeWeightWrapper<EW> {
     fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
         self.length.partial_cmp(&other.length)
     }
@@ -104,7 +100,7 @@ impl<EW: Copy + Default> PartialOrd for TriangulationEdgeWeightWrapper<EW> {
 
 impl<
         I: Copy + PartialEq + GetPetgraphIndex,
-        VW: GetTrianvertexNodeIndex<I> + HasPosition<Scalar = f64>,
+        VW: GetTrianvertexNodeIndex<I> + HasPosition,
         EW: Copy + Default,
     > visit::Data for Triangulation<I, VW, EW>
 {
@@ -113,13 +109,13 @@ impl<
 }
 
 #[derive(Debug, Clone, Copy, PartialEq)]
-pub struct TriangulationEdgeReference<I, EW: Copy + Default> {
+pub struct TriangulationEdgeReference<I, EW> {
     from: I,
     to: I,
     weight: TriangulationEdgeWeightWrapper<EW>,
 }
 
-impl<I: Copy, EW: Copy + Default> visit::EdgeRef for TriangulationEdgeReference<I, EW> {
+impl<I: Copy, EW: Copy> visit::EdgeRef for TriangulationEdgeReference<I, EW> {
     type NodeId = I;
     type EdgeId = (I, I);
     type Weight = TriangulationEdgeWeightWrapper<EW>;
@@ -144,8 +140,8 @@ impl<I: Copy, EW: Copy + Default> visit::EdgeRef for TriangulationEdgeReference<
 impl<
         'a,
         I: Copy + PartialEq + GetPetgraphIndex,
-        VW: GetTrianvertexNodeIndex<I> + HasPosition<Scalar = f64>,
-        EW: Copy + Default,
+        VW: GetTrianvertexNodeIndex<I> + HasPosition,
+        EW: Default,
     > visit::IntoNeighbors for &'a Triangulation<I, VW, EW>
 {
     type Neighbors = Box<dyn Iterator<Item = I> + 'a>;
@@ -221,8 +217,8 @@ impl<
 impl<
         'a,
         I: Copy + PartialEq + GetPetgraphIndex,
-        VW: GetTrianvertexNodeIndex<I> + HasPosition<Scalar = f64>,
-        EW: Copy + Default,
+        VW: GetTrianvertexNodeIndex<I> + HasPosition,
+        EW: Default,
     > visit::IntoNodeIdentifiers for &'a Triangulation<I, VW, EW>
 {
     type NodeIdentifiers = Box<dyn Iterator<Item = I> + 'a>;
@@ -238,13 +234,24 @@ impl<
     }
 }
 
-#[derive(Debug, Clone, Copy, PartialEq)]
-pub struct TriangulationVertexReference<'a, I: Copy, VW> {
+#[derive(Debug, PartialEq)]
+pub struct TriangulationVertexReference<'a, I, VW> {
     index: I,
     weight: &'a VW,
 }
 
-impl<'a, I: Copy, VW: Copy> visit::NodeRef for TriangulationVertexReference<'a, I, VW> {
+impl<I: Clone, VW> Clone for TriangulationVertexReference<'_, I, VW> {
+    fn clone(&self) -> Self {
+        Self {
+            index: self.index.clone(),
+            weight: self.weight,
+        }
+    }
+}
+
+impl<I: Copy, VW> Copy for TriangulationVertexReference<'_, I, VW> {}
+
+impl<I: Copy, VW> visit::NodeRef for TriangulationVertexReference<'_, I, VW> {
     type NodeId = I;
     type Weight = VW;
 
@@ -260,7 +267,7 @@ impl<'a, I: Copy, VW: Copy> visit::NodeRef for TriangulationVertexReference<'a,
 impl<
         'a,
         I: Copy + PartialEq + GetPetgraphIndex,
-        VW: Copy + GetTrianvertexNodeIndex<I> + HasPosition<Scalar = f64>,
+        VW: GetTrianvertexNodeIndex<I> + HasPosition,
         EW: Copy + Default,
     > visit::IntoNodeReferences for &'a Triangulation<I, VW, EW>
 {
@@ -283,8 +290,8 @@ impl<
 impl<
         'a,
         I: Copy + PartialEq + GetPetgraphIndex + std::fmt::Debug,
-        VW: GetTrianvertexNodeIndex<I> + HasPosition<Scalar = f64>,
-        EW: Copy + Default,
+        VW: GetTrianvertexNodeIndex<I> + HasPosition,
+        EW: Default,
     > visit::NodeIndexable for &'a Triangulation<I, VW, EW>
 {
     fn node_bound(&self) -> usize {