diff --git a/src/graph.rs b/src/graph.rs
index 9f0b4a3..783d953 100644
--- a/src/graph.rs
+++ b/src/graph.rs
@@ -19,19 +19,19 @@ pub enum TaggedWeight {
 
 #[derive(Debug, Clone, Copy, PartialEq)]
 pub struct DotWeight {
-    pub net: i32,
+    pub net: i64,
     pub circle: Circle,
 }
 
 #[derive(Debug, Clone, Copy, PartialEq)]
 pub struct BendWeight {
-    pub net: i32,
+    pub net: i64,
     pub cw: bool,
 }
 
 #[derive(Debug, Clone, Copy, PartialEq)]
 pub struct SegWeight {
-    pub net: i32,
+    pub net: i64,
     pub width: f64,
 }
 
diff --git a/src/main.rs b/src/main.rs
index 0ca8152..4ceb0af 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -105,7 +105,7 @@ fn main() {
 
     let dot1_1 = layout
         .add_dot(DotWeight {
-            net: 0,
+            net: 1,
             circle: Circle {
                 pos: (100.5, 400.5).into(),
                 r: 8.0,
@@ -114,7 +114,7 @@ fn main() {
         .unwrap();
     let dot2_1 = layout
         .add_dot(DotWeight {
-            net: 0,
+            net: 2,
             circle: Circle {
                 pos: (130.5, 430.5).into(),
                 r: 8.0,
@@ -123,7 +123,7 @@ fn main() {
         .unwrap();
     let dot3_1 = layout
         .add_dot(DotWeight {
-            net: 0,
+            net: 3,
             circle: Circle {
                 pos: (160.5, 460.5).into(),
                 r: 8.0,
@@ -132,7 +132,7 @@ fn main() {
         .unwrap();
     let dot4_1 = layout
         .add_dot(DotWeight {
-            net: 0,
+            net: 4,
             circle: Circle {
                 pos: (190.5, 490.5).into(),
                 r: 8.0,
@@ -142,7 +142,7 @@ fn main() {
 
     let dot1_2 = layout
         .add_dot(DotWeight {
-            net: 0,
+            net: 1,
             circle: Circle {
                 pos: (700.5, 400.5).into(),
                 r: 8.0,
@@ -151,7 +151,7 @@ fn main() {
         .unwrap();
     let dot2_2 = layout
         .add_dot(DotWeight {
-            net: 0,
+            net: 2,
             circle: Circle {
                 pos: (670.5, 430.5).into(),
                 r: 8.0,
@@ -160,7 +160,7 @@ fn main() {
         .unwrap();
     let dot3_2 = layout
         .add_dot(DotWeight {
-            net: 0,
+            net: 3,
             circle: Circle {
                 pos: (640.5, 460.5).into(),
                 r: 8.0,
@@ -169,7 +169,7 @@ fn main() {
         .unwrap();
     let dot4_2 = layout
         .add_dot(DotWeight {
-            net: 0,
+            net: 4,
             circle: Circle {
                 pos: (610.5, 490.5).into(),
                 r: 8.0,
@@ -179,7 +179,7 @@ fn main() {
 
     let dot5 = layout
         .add_dot(DotWeight {
-            net: 0,
+            net: 5,
             circle: Circle {
                 pos: (150.5, 100.5).into(),
                 r: 8.0,
@@ -189,7 +189,7 @@ fn main() {
 
     let dot6 = layout
         .add_dot(DotWeight {
-            net: 0,
+            net: 6,
             circle: Circle {
                 pos: (190.5, 200.5).into(),
                 r: 8.0,
@@ -199,7 +199,7 @@ fn main() {
 
     let dot7 = layout
         .add_dot(DotWeight {
-            net: 0,
+            net: 5,
             circle: Circle {
                 pos: (230.5, 70.5).into(),
                 r: 8.0,
@@ -209,7 +209,7 @@ fn main() {
 
     let barrier1_dot1 = layout
         .add_dot(DotWeight {
-            net: 0,
+            net: 10,
             circle: Circle {
                 pos: (250.5, 250.5).into(),
                 r: 8.0,
@@ -218,7 +218,7 @@ fn main() {
         .unwrap();
     let barrier1_dot2 = layout
         .add_dot(DotWeight {
-            net: 0,
+            net: 10,
             circle: Circle {
                 pos: (250.5, 700.5).into(),
                 r: 8.0,
@@ -229,7 +229,7 @@ fn main() {
 
     let barrier2_dot1 = layout
         .add_dot(DotWeight {
-            net: 0,
+            net: 20,
             circle: Circle {
                 pos: (420.5, 200.5).into(),
                 r: 8.0,
@@ -238,7 +238,7 @@ fn main() {
         .unwrap();
     let barrier2_dot2 = layout
         .add_dot(DotWeight {
-            net: 0,
+            net: 20,
             circle: Circle {
                 pos: (480.5, 700.5).into(),
                 r: 8.0,
diff --git a/src/mesh.rs b/src/mesh.rs
index 99ab0e1..a234cea 100644
--- a/src/mesh.rs
+++ b/src/mesh.rs
@@ -52,12 +52,10 @@ impl Mesh {
 
     pub fn add_dot(&mut self, weight: DotWeight) -> Result<DotIndex, ()> {
         let dot = DotIndex::new(self.graph.add_node(TaggedWeight::Dot(weight)));
-        //self.fail_and_remove_if_collides_except(dot, &[])?;
 
-        self.rtree.insert(RTreeWrapper::new(
-            self.primitive(dot).shape(),
-            TaggedIndex::Dot(dot),
-        ));
+        self.fail_and_remove_if_collides_except(dot, &[])?;
+        self.insert_into_rtree(dot.tag());
+
         Ok(dot)
     }
 
@@ -72,8 +70,22 @@ impl Mesh {
         self.graph.add_edge(from.index, seg.index, Label::End);
         self.graph.add_edge(seg.index, to.index, Label::End);
 
-        //self.fail_and_remove_if_collides_except(seg, &[from.tag(), to.tag()])?;
+        self.fail_and_remove_if_collides_except(seg, &[from.tag(), to.tag()])?;
         self.insert_into_rtree(seg.tag());
+
+        self.graph
+            .node_weight_mut(from.index)
+            .unwrap()
+            .as_dot_mut()
+            .unwrap()
+            .net = weight.net;
+        self.graph
+            .node_weight_mut(to.index)
+            .unwrap()
+            .as_dot_mut()
+            .unwrap()
+            .net = weight.net;
+
         Ok(seg)
     }
 
@@ -99,12 +111,12 @@ impl Mesh {
         weight: BendWeight,
     ) -> Result<BendIndex, ()> {
         let bend = BendIndex::new(self.graph.add_node(TaggedWeight::Bend(weight)));
-        //self.fail_and_remove_if_collides_except(bend, &[from.tag(), to.tag(), core.tag()])?;
 
         self.graph.add_edge(from.index, bend.index, Label::End);
         self.graph.add_edge(bend.index, to.index, Label::End);
         self.graph.add_edge(bend.index, core.index, Label::Core);
 
+        self.fail_and_remove_if_collides_except(bend, &[from.tag(), to.tag(), core.tag()])?;
         self.insert_into_rtree(bend.tag());
         Ok(bend)
     }
@@ -232,9 +244,8 @@ impl Mesh {
         self.rtree
             .locate_in_envelope_intersecting(&shape.envelope())
             .filter(|wrapper| {
-                !primitive
-                    .neighbors()
-                    .any(|neighbor| neighbor == wrapper.data)
+                let index = wrapper.data;
+                !untag!(index, primitive.connectable(index))
             })
             .filter(|wrapper| !except.contains(&wrapper.data))
             .filter(|wrapper| shape.intersects(wrapper.geom()))
diff --git a/src/primitive.rs b/src/primitive.rs
index c8eae18..d38f8f6 100644
--- a/src/primitive.rs
+++ b/src/primitive.rs
@@ -148,6 +148,27 @@ impl<'a, Weight> Primitive<'a, Weight> {
             .next()
     }
 
+    pub fn connectable<W>(&self, index: Index<W>) -> bool {
+        let this = self.net(&self.index);
+        let other = self.net(&index);
+
+        if this == -1 || other == -1 {
+            true
+        } else if this == -2 || other == -2 {
+            false
+        } else {
+            this == other
+        }
+    }
+
+    fn net<W>(&self, index: &Index<W>) -> i64 {
+        match self.graph.node_weight(index.index).unwrap() {
+            TaggedWeight::Dot(dot) => dot.net,
+            TaggedWeight::Seg(seg) => seg.net,
+            TaggedWeight::Bend(bend) => bend.net,
+        }
+    }
+
     pub fn tagged_index(&self) -> TaggedIndex {
         self.index
             .retag(self.graph.node_weight(self.index.index).unwrap())
diff --git a/src/rules.rs b/src/rules.rs
index f33634c..ccec0ec 100644
--- a/src/rules.rs
+++ b/src/rules.rs
@@ -2,19 +2,19 @@ use std::collections::HashMap;
 
 #[derive(Debug, Clone, Copy, Hash, PartialEq, Eq)]
 pub struct Conditions {
-    pub lower_net: Option<i32>,
-    pub higher_net: Option<i32>,
-    pub layer: Option<i32>,
-    pub zone: Option<i32>,
+    pub lower_net: Option<i64>,
+    pub higher_net: Option<i64>,
+    pub layer: Option<i64>,
+    pub zone: Option<i64>,
 }
 
 impl Conditions {
-    pub fn priority(&self) -> i32 {
+    pub fn priority(&self) -> i64 {
         let mut priority = 0;
-        priority += (self.lower_net.is_some() as i32) * 1;
-        priority += (self.higher_net.is_some() as i32) * 2;
-        priority += (self.layer.is_some() as i32) * 4;
-        priority += (self.zone.is_some() as i32) * 8;
+        priority += (self.lower_net.is_some() as i64) * 1;
+        priority += (self.higher_net.is_some() as i64) * 2;
+        priority += (self.layer.is_some() as i64) * 4;
+        priority += (self.zone.is_some() as i64) * 8;
         priority
     }
 }