Add a range option for kip3

Author: rjfarmer

mesaPlot/plot.py

@@ -5328,6 +5328,7 @@ def plotKip3(
         cbar_ax=None,
         cpad=0.0,
         cbar_extend="neither",
+        zrng=None,
     ):
 
         if fig == None:
@@ -5563,6 +5564,9 @@ def plotKip3(
             if cmax is not None:
                 vmax = cmax
 
+            if zrng is not None:
+                vmin = vmax - zrng
+
             if not zaxis_contour:
                 im1 = ax.imshow(
                     data_z.T,