Added GUI

utils/util.py

@@ -0,0 +1,31 @@
+import numpy as np
+
+
+def sperical2equirec(theta, phi, img_w, img_h):
+    u = np.deg2rad(theta) / (2 * np.pi)
+    v = np.deg2rad(phi) / np.pi
+
+    x = u * img_w
+    y = v * img_h
+    return x, y
+
+
+def equirec2spherical(x, y, img_w, img_h):
+    # Normalize coordinates
+    u = x / img_w
+    v = y / img_h
+
+    # Calculate spherical coordinates from normalized coordinates
+    # theta is horizontal angle, phi is polar angle
+    theta = u * 2 * np.pi
+    phi = v * np.pi
+
+    return np.rad2deg(theta), np.rad2deg(phi)
+
+
+def get_circle(radius):
+    """ helper function returns circle to x, y coordinates"""
+    theta = np.linspace(0, 2 * np.pi, 100)
+    x = radius * np.cos(theta)
+    y = radius * np.sin(theta)
+    return np.array(x), np.array(y)