Latest Contributions by DarrenWiens2

Put this in the code block: def my_function(numerator, denominator):      if denominator == 0:        return -99    else:      return numerator/denominator ...and this in the expression below the code block: my_function(!CHSCH04!,!TOSCH04!) Make sure you've changed to the Python parser. ... View more

Here's a Python implementation that should be mostly portable to JavaScript: >>> h = 1000 # x coord of ellipse centre ... k = 100 # y coord of ellipse centre ... a = 5 # unrotated x axis ... b = 10 # unrotated y axis ... ang = math.radians(45) # rotation, counter-clockwise, from north ... points = [] ... for i in range(360): # one point per degree, change if you wish ...     t = math.radians(i) # ellipse math ...     x = a*math.cos(t) # ellipse math ...     y = b*math.sin(t) # ellipse math ...     rot_x = h+(x*math.cos(ang))-(y*math.sin(ang)) # rotate/transpose ellipse ...     rot_y = k+(y*math.cos(ang))+(x*math.sin(ang)) # rotate/transpose ellipse ...     points.append(arcpy.PointGeometry(arcpy.Point(rot_x,rot_y))) # save points to list   ... arcpy.CopyFeatures_management(points,r'in_memory\points') # save points to disk Helpful links: The Most Marvelous Theorem in Mathematics Parametric Equation of an Ellipse - Math Open Reference ... View more