added example

Author: medha-14

docs/examples/viz_sliders.py

@@ -4,11 +4,12 @@
 ==========
 """
 
-from fury.ui import LineSlider2D
+from fury.ui import LineSlider2D, RingSlider2D
 from fury.window import Scene, ShowManager
 
 scene = Scene()
 
+# Horizontal Line Slider
 line_slider_h = LineSlider2D(
     position=(50, 200),
     initial_value=70,
@@ -20,6 +21,7 @@
     text_template="Horizontal: {value:.1f}",
 )
 
+# Vertical Line Slider
 line_slider_v = LineSlider2D(
     position=(500, 100),
     initial_value=30,
@@ -31,8 +33,21 @@
     text_template="Vertical: {value:.1f}",
 )
 
+# Ring Slider
+ring_slider = RingSlider2D(
+    center=(200, 400),
+    initial_value=180,
+    min_value=0,
+    max_value=360,
+    slider_inner_radius=50,
+    slider_outer_radius=60,
+    handle_outer_radius=12,
+    text_template="Angle: {angle:.0f}°",
+)
+
 scene.add(line_slider_h)
 scene.add(line_slider_v)
+scene.add(ring_slider)
 
 if __name__ == "__main__":
     current_size = (800, 700)