Add grid

Adding a 3D grid to the example

examples/example_ocean.py

@@ -42,7 +42,7 @@ def transformTopo(src=GetActiveSource(),moveXFunction=''):
 dataDims = ['xt_ocean','yt_ocean','st_ocean']
 # the values we will be interested in
 dataName = 'o2'
-dataContours = [1e-4]
+dataContours = [8e-5]
 
 ## how would you like the transformation to work ##
 logCoord = [] #no logarithmic coordinates
@@ -121,5 +121,8 @@ def transformTopo(src=GetActiveSource(),moveXFunction=''):
 except:
     pass
 
+#### finally, add a grid  ####
+AddGrid(xlevels=[-270,-225,-180,-135,-90,-45,0,45], ylevels=[-60,-30,0,30,60], zlevels=range(-5000,1000,1000), bounds=[-280,80,-90,90,-5500,0], ratios=aspRat, logCoord=logCoord, AxisNames=["longitude","latitude","depth [m]"], AxisColor=[0,0,0], AxisWidth=1.0,LabelSize=5.0)
+
 
 Render()