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PolyCAD

54. Set up the contours (Tools -> Contours...) with an X Spacing of 2m, Y Spacing of 0.5m and Z Spacing of 0.5m. Press 'Generate' and then the OK button.

54. Turn of the surface parameters because the distortion of the surface definition cause these lines to give a misleading impression of shape, (Right-Click -> IntelliHull -> Show Parameters).

55. Turn on the surface contours, (Right-Click ->IntelliHull -> Show Contours).

The surface should now look like the image shown below.

Basic Parametric Modifications >>>