bundle: update (2026-01-16)

extensions/km-living-hinge/shapes.py

@@ -0,0 +1,190 @@
+# Functions that return segments to draw each shape based on height/width
+# Configs that are highly opinionated to calculate some parameters
+
+def line_shape(height, width):
+    return [
+        [(0, 0), (0, height)]
+    ]
+
+
+def fishbone_shape(height, width):
+    mid_x = width / 2
+    return [
+        [(0, 0), (mid_x, height), (width, 0)]
+    ]
+
+
+def cross_shape(height, width):
+    dx = width * 0.1
+    mid_y = height / 2
+    left_inner = width * 0.25 + dx
+    right_inner = width * 0.75 - dx
+
+    return [
+        [(0, 0), (left_inner, mid_y), (0, height)],
+        [(left_inner, mid_y), (right_inner, mid_y)],
+        [(width, 0), (right_inner, mid_y), (width, height)],
+    ]
+
+
+def bezier_shape(height, width, anchor_tip=0.2, anchor_center=0.3):
+    return [
+        ('C', [
+            (0, 0),
+            (width * anchor_tip, 0),
+            (width * (0.5 - anchor_center), height),
+            (width * 0.5, height)
+        ]),
+        ('C', [
+            (width * 0.5, height),
+            (width * (0.5 + anchor_center), height),
+            (width * (1 - anchor_tip), 0),
+            (width, 0)
+        ]),
+    ]
+
+
+def wave_shape(height, width, param_a=0.0, param_b=0.0):
+    mid_y = height / 2
+
+    return [
+        ('L', [(0, 0), (width * 0.25, 0)]),
+        ('Q', [(width * 0.25, 0), (width * (0.5 + param_a), height * param_b), (width * 0.5, mid_y)]),
+        ('Q', [(width * 0.5, mid_y), (width * (0.5 - param_a), height * (1 - param_b)), (width * 0.75, height)]),
+        ('L', [(width * 0.75, height), (width, height)]),
+    ]
+
+
+def fabric_shape(height, width):
+    line1 = [
+        (width * 0.25, height * 0.25),
+        (width * 0.0, height * 0.25),
+        (width * 0.0, height * 0.0),
+        (width * 0.5, height * 0.0),
+        (width * 0.5, height * 1.0),
+        (width * 1.0, height * 1.0),
+        (width * 1.0, height * 0.75),
+        (width * 0.75, height * 0.75),
+    ]
+
+    line2 = [
+        (width * 0.75, height * 0.25),
+        (width * 0.75, height * 0.0),
+        (width * 1.0, height * 0.0),
+        (width * 1.0, height * 0.5),
+        (width * 0.0, height * 0.5),
+        (width * 0.0, height * 1.0),
+        (width * 0.25, height * 1.0),
+        (width * 0.25, height * 0.75),
+    ]
+
+    return [line1, line2]
+
+
+def circle_shape(height, width):
+    kappa = 0.5522847498
+    rx = width / 2
+    ry = height / 2
+    cx = rx
+    cy = ry
+    kx = rx * kappa
+    ky = ry * kappa
+
+    return [
+        ('C', [
+            (cx + rx, cy),
+            (cx + rx, cy + ky),
+            (cx + kx, cy + ry),
+            (cx, cy + ry)
+        ]),
+        ('C', [
+            (cx, cy + ry),
+            (cx - kx, cy + ry),
+            (cx - rx, cy + ky),
+            (cx - rx, cy)
+        ]),
+        ('C', [
+            (cx - rx, cy),
+            (cx - rx, cy - ky),
+            (cx - kx, cy - ry),
+            (cx, cy - ry)
+        ]),
+        ('C', [
+            (cx, cy - ry),
+            (cx + kx, cy - ry),
+            (cx + rx, cy - ky),
+            (cx + rx, cy)
+        ]),
+    ]
+
+
+def line_config(height, width, x_spacing, y_spacing, bbox):
+    _, _, _, bbox_height = bbox
+    height = height * bbox_height
+    y_offset = (height + y_spacing) / 2
+    return (height, 0, x_spacing, y_spacing, y_offset)
+
+
+def fishbone_config(height, width, x_spacing, y_spacing, bbox):
+    y_offset = (height + y_spacing) / 2
+    return (height, width, x_spacing, y_spacing, y_offset)
+
+
+def cross_config(height, width, x_spacing, y_spacing, bbox):
+    x_spacing = -0.4 * width
+    y_spacing = height
+    y_offset = height
+    return (height, width, x_spacing, y_spacing, y_offset)
+
+
+def bezier_config(height, width, x_spacing, y_spacing, bbox):
+    y_offset = (height + y_spacing) / 2
+    return (height, width, x_spacing, y_spacing, y_offset)
+
+
+def wave_config(height, width, x_spacing, y_spacing, bbox):
+    x_spacing = -0.2 * width
+    y_spacing = 0
+    y_offset = 0.5 * height
+    return (height, width, x_spacing, y_spacing, y_offset)
+
+
+def fabric_config(height, width, x_spacing, y_spacing, bbox):
+    x_spacing = -0.375 * width
+    y_spacing = 0.25 * height
+    y_offset = 0.625 * height
+    return (height, width, x_spacing, y_spacing, y_offset)
+
+
+def circle_config(height, width, x_spacing, y_spacing, bbox):
+    y_offset = (height + y_spacing) / 2
+    return (height, width, x_spacing, y_spacing, y_offset)
+
+
+SHAPES = {
+    'line': line_shape,
+    'fishbone': fishbone_shape,
+    'cross': cross_shape,
+    'bezier': bezier_shape,
+    'wave': wave_shape,
+    'fabric': fabric_shape,
+    'circle': circle_shape,
+}
+
+CONFIGS = {
+    'line': line_config,
+    'fishbone': fishbone_config,
+    'cross': cross_config,
+    'bezier': bezier_config,
+    'wave': wave_config,
+    'fabric': fabric_config,
+    'circle': circle_config,
+}
+
+
+def get_shape(shape_type):
+    return SHAPES.get(shape_type, line_shape)
+
+
+def get_config(shape_type):
+    return CONFIGS.get(shape_type, line_config)