[Martin-dev] Add data generation script

data_gen.py

@@ -0,0 +1,82 @@
+import matplotlib.pyplot as plt
+import matplotlib.patches as patches
+import numpy as np
+
+def data_generation(rounding_size=0.00, gray_value=0.5, rotation_angle=0, shape_size=0.2):
+    """
+    Draws two symmetric upright squares on a square canvas, positioned symmetrically and rotated around center.
+
+    Parameters:
+    - rounding_size: float (0 to ~0.5), roundness of the soft-corner square
+    - gray_value: float (0 to 1), grayscale color of the squares (1=white, 0=black)
+    - rotation_angle: float, rotation angle in degrees (affects position only, not shape orientation)
+    - shape_size: float, size of the squares (0 to 1)
+    """
+    fig, ax = plt.subplots(figsize=(6, 6))
+
+    # Colors
+    # color_sharp = (0.5, 0.5, 0.5)
+    color_sharp = (0.75, 0.75, 0.75)
+    color_rounded = (gray_value, gray_value, gray_value)
+
+    # Center point
+    cx, cy = 0.5, 0.5
+    # offset = 0.3
+    offset = 0.25
+
+    # Rotation matrix
+    theta = np.radians(rotation_angle)
+    cos_t, sin_t = np.cos(theta), np.sin(theta)
+
+    def rotate_point(x, y, cx, cy):
+        """Rotate a point (x, y) around center (cx, cy) by theta radians."""
+        x_shifted = x - cx
+        y_shifted = y - cy
+        x_new = cos_t * x_shifted - sin_t * y_shifted + cx
+        y_new = sin_t * x_shifted + cos_t * y_shifted + cy
+        return x_new, y_new
+
+    # Left (sharp) square position
+    shape_size_sharp = 0.2
+    left_center = rotate_point(cx - offset, cy, cx, cy)
+    square_sharp = patches.Rectangle(
+        (left_center[0] - shape_size_sharp/2, left_center[1] - shape_size_sharp/2),
+        shape_size_sharp, shape_size_sharp,
+        linewidth=1, edgecolor=color_sharp, facecolor=color_sharp
+    )
+    ax.add_patch(square_sharp)
+
+    # Right (rounded) square position
+    right_center = rotate_point(cx + offset, cy, cx, cy)
+    square_rounded = patches.FancyBboxPatch(
+        (right_center[0] - shape_size/2, right_center[1] - shape_size/2),
+        shape_size, shape_size,
+        boxstyle=f"round,pad=0.00, rounding_size={rounding_size}",
+        linewidth=1, edgecolor=color_rounded, facecolor=color_rounded
+    )
+    ax.add_patch(square_rounded)
+
+    # Set limits and aspect
+    ax.set_xlim(0, 1)
+    ax.set_ylim(0, 1)
+    ax.set_aspect('equal')
+    ax.axis('off')
+
+    # Save and show
+    plt.savefig(
+        f"test_{rounding_size:.3f}_{gray_value:.2f}_{rotation_angle:.1f}_{shape_size:.2f}.png",
+        dpi=300, bbox_inches='tight'
+    )
+    plt.show()
+
+
+for r in [0.00, 0.03, 0.06, 0.09, 0.12]:
+  for g in [0.75, 0.65, 0.55, 0.45, 0.35]:
+    for a in [-45, -22.5, 0, 22.5, 45]:
+      for s in [0.2, 0.25, 0.30, 0.35, 0.40]:
+        data_generation(
+            rounding_size=r,
+            gray_value=g,
+            rotation_angle=a,
+            shape_size=s
+        )