WIP #576: Spare a bit of memory by converting things to arrays

printrun/gl/libtatlin/actors.py

@@ -18,6 +18,7 @@
 
 import time
 import numpy
+import array
 import math
 import logging
 import threading
@@ -638,6 +639,11 @@ class GcodeModel(Model):
             self.normals.resize(normal_k, refcheck = False)
             self.indices.resize(index_k, refcheck = False)
 
+            self.layer_stops = array.array('L', self.layer_stops)
+            self.count_travel_indices = array.array('L', count_travel_indices)
+            self.count_print_indices = array.array('L', count_print_indices)
+            self.count_print_vertices = array.array('L', count_print_vertices)
+
             self.max_layers = len(self.layer_stops) - 1
             self.num_layers_to_draw = self.max_layers + 1
             self.loaded = True