scale normalization

pychunkedgraph/meshing/meshgen.py

@@ -1,4 +1,4 @@
-# pylint: disable=invalid-name, missing-docstring, no-member, too-many-lines, c-extension-no-member, bare-except
+# pylint: disable=invalid-name, missing-docstring, no-member, too-many-lines, c-extension-no-member, bare-except, not-callable
 
 from typing import Sequence
 import os
@@ -37,19 +37,22 @@ def simplify(cg, new_fragment, new_fragment_id: np.uint64 = None):
     Simplify with pyfqmr; input and output flat vertices and faces.
     """
 
-    v = new_fragment["vertices"].reshape(-1, 3)
-    f = new_fragment["faces"].reshape(-1, 3)
-
     l2factor = int(os.environ.get("l2factor", "2"))
     factor = int(os.environ.get("factor", "4"))
     aggressiveness = float(os.environ.get("aggr", "7.0"))
 
+    v = new_fragment["vertices"].reshape(-1, 3)
+    f = new_fragment["faces"].reshape(-1, 3)
+
     layer = cg.get_chunk_layer(new_fragment_id)
     if layer == 2:
         target_count = max(int(len(f) / l2factor), 4)
     else:
         target_count = max(int(len(f) / factor), 4)
 
+    scale = (2 ** (layer - 2)) * np.array(cg.meta.graph_config.CHUNK_SIZE, dtype=int)
+    v = v / scale
+
     simplifier = pyfqmr.Simplify()
     simplifier.setMesh(v, f)
     simplifier.simplify_mesh(
@@ -59,6 +62,7 @@ def simplify(cg, new_fragment, new_fragment_id: np.uint64 = None):
         verbose=False,
     )
     v, f, _ = simplifier.getMesh()
+    v = v * scale
     new_fragment["vertices"] = v.flatten()
     new_fragment["faces"] = f.flatten()
     return new_fragment