ADD: Add corner reflector example (#1637)

examples/plotting/plot_corner_reflector.py

@@ -0,0 +1,28 @@
+"""
+=======================
+Plot a Corner Reflector
+=======================
+
+This is an example of how to plot a corner reflector.
+
+"""
+
+print(__doc__)
+
+# Author: Max Grover ([email protected])
+# License: BSD 3 clause
+
+from open_radar_data import DATASETS
+
+import pyart
+
+filename = DATASETS.fetch("sgpkasacrcrrasterC1.a1.20130419.012153.nc")
+
+# Read the data
+radar = pyart.io.read(filename)
+
+# Set up the display object
+display = pyart.graph.RadarDisplay(radar)
+
+# Set the corner reflector to be 478 m away, with elevations between -0.5 to 2.5 deg
+display.plot_cr_raster(target_range=478.0, el_limits=[-0.5, 2.5], cmap="HomeyerRainbow")