simplify

core/nodeslicer/nodes/path.py

@@ -369,3 +369,50 @@ class SLICENODE_JoinPaths(SliceNodeJoiner):
             return merged
 
         return SlicePaths()
+
+
+@register_class
+class SLICENODE_SimplifyPaths(SliceNode):
+    bl_label = "Simplify Paths"
+
+    preserve_topology: NfBoolProperty(  # pyright: ignore[reportInvalidTypeForm]
+        name="Preserve Topology",
+        description="Prevents swapping of contained/containing geometry during simplification",
+        default=True
+    )
+
+    def init(self, context):
+        self.add_input("SLICESOCK_Paths")
+        self.add_input("SLICESOCK_Float", "Tolerance").value = 0.1
+        self.add_output("SLICESOCK_Paths")
+
+    def draw_buttons(self, context, layout):
+        assert layout
+        layout.prop(self, "preserve_topology")
+
+    def evaluate_output(self, socket_name: str, **_kwargs) -> SlicePaths:
+        if socket_name != "Paths":
+            return SlicePaths()
+
+        paths: SlicePaths = self.resolve("Paths")
+        tolerance: float = self.resolve("Tolerance") or 0.0
+
+        if not paths or tolerance <= 0:
+            return paths
+
+        from shapely.geometry import LineString
+        import numpy as np
+
+        simplified = []
+        for p in paths:
+            if len(p) < 3:
+                simplified.append(p)
+                continue
+            line = LineString(p)
+            simplified_line = line.simplify(tolerance, preserve_topology=self.preserve_topology)
+            if simplified_line.geom_type == 'LineString' and len(simplified_line.coords) >= 2:
+                simplified.append(np.array(simplified_line.coords, dtype=p.dtype))
+            else:
+                simplified.append(p)
+
+        return paths.copy_with(simplified)

core/nodeslicer/tree.py

@@ -506,6 +506,7 @@ class SLICENODE_MT_Geometry(Menu):
         layout.operator("node.add_node", text="Buffer Shells Multiple").type = "SLICENODE_BufferShellsMultiple"
         layout.operator("node.add_node", text="Path Offset").type = "SLICENODE_PathOffset"
         layout.operator("node.add_node", text="Rotate Path").type = "SLICENODE_RotatePath"
+        layout.operator("node.add_node", text="Simplify Paths").type = "SLICENODE_SimplifyPaths"
         layout.operator("node.add_node", text="Infill").type = "SLICENODE_Infill"
         layout.operator("node.add_node", text="Boolean Paths").type = "SLICENODE_JoinSlices"
         layout.separator()