248 lines
9.6 KiB
Python
248 lines
9.6 KiB
Python
import numpy as np
|
|
import unittest
|
|
from unittest.mock import MagicMock
|
|
import sys
|
|
from pathlib import Path
|
|
|
|
# Add workspace directory to sys.path to resolve root package name (NodeSlicer)
|
|
PROJECT_ROOT = Path(__file__).resolve().parent.parent
|
|
sys.path.append(str(PROJECT_ROOT.parent))
|
|
|
|
# Define dummy classes to avoid metaclass conflicts
|
|
class DummyNodeSocket: pass
|
|
class DummyNode: pass
|
|
class DummyObject: pass
|
|
class DummyMesh: pass
|
|
class DummyNodeSocketShader: pass
|
|
class DummyNodeCustomGroup: pass
|
|
class DummyNodeTree: pass
|
|
class DummyOperator: pass
|
|
class DummyMenu: pass
|
|
class DummyPanel: pass
|
|
class DummyPropertyGroup: pass
|
|
|
|
mock_types = MagicMock()
|
|
mock_types.NodeSocket = DummyNodeSocket
|
|
mock_types.Node = DummyNode
|
|
mock_types.Object = DummyObject
|
|
mock_types.Mesh = DummyMesh
|
|
mock_types.NodeSocketShader = DummyNodeSocketShader
|
|
mock_types.NodeCustomGroup = DummyNodeCustomGroup
|
|
mock_types.NodeTree = DummyNodeTree
|
|
mock_types.Operator = DummyOperator
|
|
mock_types.Menu = DummyMenu
|
|
mock_types.Panel = DummyPanel
|
|
mock_types.PropertyGroup = DummyPropertyGroup
|
|
|
|
mock_bpy = MagicMock()
|
|
mock_bpy.context.scene = MagicMock()
|
|
mock_bpy.context.scene.unit_settings.scale_length = 0.001
|
|
mock_bpy.types = mock_types
|
|
|
|
sys.modules['bpy'] = mock_bpy
|
|
sys.modules['bpy.types'] = mock_types
|
|
sys.modules['bpy.props'] = MagicMock()
|
|
sys.modules['bpy.utils'] = MagicMock()
|
|
sys.modules['bpy.utils.previews'] = MagicMock()
|
|
sys.modules['bpy.app'] = MagicMock()
|
|
sys.modules['bpy.app.handlers'] = MagicMock()
|
|
|
|
# Import the actual functions to test
|
|
from NodeSlicer.core.slice import segments_to_slice, link_segments
|
|
|
|
class TestSlice(unittest.TestCase):
|
|
def test_link_segments_closed(self):
|
|
# Closed triangle: A(0,0,10) -> B(10,0,10) -> C(0,10,10) -> A(0,0,10)
|
|
segments = np.array([
|
|
[[0.0, 0.0, 10.0], [10.0, 0.0, 10.0]],
|
|
[[10.0, 0.0, 10.0], [0.0, 10.0, 10.0]],
|
|
[[0.0, 10.0, 10.0], [0.0, 0.0, 10.0]]
|
|
])
|
|
linked = link_segments(segments)
|
|
self.assertEqual(len(linked), 1)
|
|
path = linked[0]
|
|
# Should start and end at the same point (A)
|
|
self.assertTrue(np.allclose(path[0], path[-1]))
|
|
|
|
# Verify segments_to_slice closes it
|
|
sliced = segments_to_slice(segments)
|
|
self.assertEqual(len(sliced), 1)
|
|
sliced_path = sliced[0]
|
|
self.assertTrue(np.allclose(sliced_path[0], sliced_path[-1]))
|
|
|
|
def test_link_segments_open(self):
|
|
# Open path: A(0,0,10) -> B(10,0,10) -> C(0,10,10) (no C->A segment)
|
|
segments = np.array([
|
|
[[0.0, 0.0, 10.0], [10.0, 0.0, 10.0]],
|
|
[[10.0, 0.0, 10.0], [0.0, 10.0, 10.0]]
|
|
])
|
|
linked = link_segments(segments)
|
|
self.assertEqual(len(linked), 1)
|
|
path = linked[0]
|
|
# Should NOT start and end at the same point
|
|
self.assertFalse(np.allclose(path[0], path[-1]))
|
|
|
|
# Verify segments_to_slice does NOT close it
|
|
sliced = segments_to_slice(segments)
|
|
self.assertEqual(len(sliced), 1)
|
|
sliced_path = sliced[0]
|
|
self.assertFalse(np.allclose(sliced_path[0], sliced_path[-1]),
|
|
f"Path was incorrectly closed: {sliced_path}")
|
|
|
|
def test_buffer_curve_basic(self):
|
|
# Open path (line segment from (0,0,10) to (10,0,10))
|
|
path = np.array([[0.0, 0.0, 10.0], [10.0, 0.0, 10.0]])
|
|
from NodeSlicer.core.slice import SlicePaths
|
|
slice_paths = SlicePaths([path])
|
|
|
|
# Buffer curve with distance 1.0
|
|
buffered = slice_paths.buffer_curve(1.0, cap_style='flat')
|
|
|
|
# Output should be a SlicePaths instance
|
|
self.assertIsInstance(buffered, SlicePaths)
|
|
self.assertEqual(len(buffered), 1)
|
|
|
|
# Check that the path is now closed (buffered area boundary)
|
|
buffered_path = buffered[0]
|
|
self.assertTrue(np.allclose(buffered_path[0], buffered_path[-1]))
|
|
|
|
# Flat cap with distance 1.0 should result in a rectangle:
|
|
# width = 10 (from 0 to 10), height = 2 (from -1 to 1) -> area = 20
|
|
# Let's compute 2D polygon area of the resulting path
|
|
xs = buffered_path[:, 0]
|
|
ys = buffered_path[:, 1]
|
|
# Shoelace formula for area
|
|
area = 0.5 * np.abs(np.dot(xs, np.roll(ys, 1)) - np.dot(ys, np.roll(xs, 1)))
|
|
self.assertAlmostEqual(area, 20.0, places=3)
|
|
|
|
# Check Z coordinate is preserved
|
|
self.assertTrue(np.allclose(buffered_path[:, 2], 10.0))
|
|
|
|
def test_buffer_curve_cap_styles(self):
|
|
path = np.array([[0.0, 0.0, 5.0], [10.0, 0.0, 5.0]])
|
|
from NodeSlicer.core.slice import SlicePaths
|
|
slice_paths = SlicePaths([path])
|
|
|
|
# Round cap
|
|
buffered_round = slice_paths.buffer_curve(1.0, cap_style='round')
|
|
# Flat cap
|
|
buffered_flat = slice_paths.buffer_curve(1.0, cap_style='flat')
|
|
# Square cap
|
|
buffered_square = slice_paths.buffer_curve(1.0, cap_style='square')
|
|
|
|
# Area comparison: flat (20.0) < round (20.0 + pi) < square (24.0)
|
|
def get_area(p):
|
|
xs, ys = p[:, 0], p[:, 1]
|
|
return 0.5 * np.abs(np.dot(xs, np.roll(ys, 1)) - np.dot(ys, np.roll(xs, 1)))
|
|
|
|
area_flat = get_area(buffered_flat[0])
|
|
area_round = get_area(buffered_round[0])
|
|
area_square = get_area(buffered_square[0])
|
|
|
|
self.assertAlmostEqual(area_flat, 20.0, places=3)
|
|
self.assertAlmostEqual(area_square, 24.0, places=3)
|
|
self.assertGreater(area_round, area_flat)
|
|
self.assertLess(area_round, area_square)
|
|
|
|
def test_buffer_curve_single_sided(self):
|
|
path = np.array([[0.0, 0.0, 0.0], [10.0, 0.0, 0.0]])
|
|
from NodeSlicer.core.slice import SlicePaths
|
|
slice_paths = SlicePaths([path])
|
|
|
|
buffered = slice_paths.buffer_curve(1.0, cap_style='flat', single_sided=True)
|
|
# For a single sided flat cap buffer, the rectangle area is distance * length = 1.0 * 10.0 = 10.0
|
|
xs, ys = buffered[0][:, 0], buffered[0][:, 1]
|
|
area = 0.5 * np.abs(np.dot(xs, np.roll(ys, 1)) - np.dot(ys, np.roll(xs, 1)))
|
|
self.assertAlmostEqual(area, 10.0, places=3)
|
|
|
|
def test_offset_curve_basic(self):
|
|
# Open path (line segment from (0,0,10) to (10,0,10))
|
|
path = np.array([[0.0, 0.0, 10.0], [10.0, 0.0, 10.0]])
|
|
from NodeSlicer.core.slice import SlicePaths
|
|
slice_paths = SlicePaths([path])
|
|
|
|
# Offset curve by 1.0 (should shift it to (0, 1, 10) -> (10, 1, 10))
|
|
offset = slice_paths.offset_curve(1.0)
|
|
|
|
self.assertIsInstance(offset, SlicePaths)
|
|
self.assertEqual(len(offset), 1)
|
|
|
|
offset_path = offset[0]
|
|
# Should remain an open path (first and last coordinate not equal)
|
|
self.assertFalse(np.allclose(offset_path[0], offset_path[-1]))
|
|
|
|
# Verify the shifted coordinates
|
|
self.assertTrue(np.allclose(offset_path[:, 1], 1.0))
|
|
self.assertTrue(np.allclose(offset_path[:, 2], 10.0))
|
|
self.assertTrue(np.allclose(offset_path[0, 0], 0.0))
|
|
self.assertTrue(np.allclose(offset_path[1, 0], 10.0))
|
|
|
|
def test_offset_curve_closed_loop(self):
|
|
# Closed square path: (0,0) -> (0,10) -> (10,10) -> (10,0) -> (0,0) at Z=5.0
|
|
path = np.array([
|
|
[0.0, 0.0, 5.0],
|
|
[0.0, 10.0, 5.0],
|
|
[10.0, 10.0, 5.0],
|
|
[10.0, 0.0, 5.0],
|
|
[0.0, 0.0, 5.0]
|
|
])
|
|
from NodeSlicer.core.slice import SlicePaths
|
|
slice_paths = SlicePaths([path])
|
|
|
|
# Offset curve by +1.0
|
|
# Positive distance in a clockwise loop should shift it inward (to a square of size 8.0)
|
|
offset_in = slice_paths.offset_curve(1.0, join_style='mitre')
|
|
|
|
self.assertIsInstance(offset_in, SlicePaths)
|
|
self.assertEqual(len(offset_in), 1)
|
|
|
|
offset_path = offset_in[0]
|
|
# Should remain perfectly closed (first and last coordinate equal)
|
|
self.assertTrue(np.allclose(offset_path[0], offset_path[-1]), f"Offset path was not closed: {offset_path}")
|
|
|
|
# Calculate the area of the offset path
|
|
xs, ys = offset_path[:, 0], offset_path[:, 1]
|
|
area = 0.5 * np.abs(np.dot(xs, np.roll(ys, 1)) - np.dot(ys, np.roll(xs, 1)))
|
|
self.assertAlmostEqual(area, 64.0, places=3)
|
|
|
|
# Check Z coordinate is preserved
|
|
self.assertTrue(np.allclose(offset_path[:, 2], 5.0))
|
|
|
|
def test_get_infill_mask(self):
|
|
# Two overlapping closed squares on the same layer Z=3.0
|
|
# Square 1: (0,0) to (10,10)
|
|
sq1 = np.array([
|
|
[0.0, 0.0, 3.0],
|
|
[0.0, 10.0, 3.0],
|
|
[10.0, 10.0, 3.0],
|
|
[10.0, 0.0, 3.0],
|
|
[0.0, 0.0, 3.0]
|
|
])
|
|
# Square 2: (5,5) to (15,15) - overlaps from (5,5) to (10,10)
|
|
sq2 = np.array([
|
|
[5.0, 5.0, 3.0],
|
|
[5.0, 15.0, 3.0],
|
|
[15.0, 15.0, 3.0],
|
|
[15.0, 5.0, 3.0],
|
|
[5.0, 5.0, 3.0]
|
|
])
|
|
from NodeSlicer.core.slice import SlicePaths
|
|
# Both in group 0
|
|
slice_paths = SlicePaths([sq1, sq2], groups=[0, 0])
|
|
|
|
mask = slice_paths.get_infill_mask()
|
|
|
|
self.assertIsInstance(mask, SlicePaths)
|
|
self.assertEqual(len(mask), 1) # Intersection of two squares should be one square (5,5) to (10,10)
|
|
|
|
mask_path = mask[0]
|
|
self.assertTrue(np.allclose(mask_path[0], mask_path[-1]))
|
|
|
|
# Area of intersection should be 5 * 5 = 25
|
|
xs, ys = mask_path[:, 0], mask_path[:, 1]
|
|
area = 0.5 * np.abs(np.dot(xs, np.roll(ys, 1)) - np.dot(ys, np.roll(xs, 1)))
|
|
self.assertAlmostEqual(area, 25.0, places=3)
|
|
self.assertTrue(np.allclose(mask_path[:, 2], 3.0))
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|