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Interpolate Contours Wizard

Interpolates contours from a TIN   (polygonZ)

Inputs:

• A  TIN (polygonZ) feature layer
• Base value - the contour from which to begin generation of contours
• Contour interval - Z value difference between adjacent contours in map units.

Outputs:

• New polyline feature class. Several fields are added to the attribute table, depending on the options selected
  • [ET_Height] - the contour value

Notes:

• If flat triangles (see TIN Notes ) are present, some small problems might occur in the contours. These problems are easy to identify using Export Nodes Wizard. Since the contour lines never intersect each other, there should not be Regular Nodes in the contour layer. A regular node in this case will indicate an error ( most probably caused by a flat triangle ). The excess polyline can be deleted.
• The Smooth Polylines Wizard can be used to smooth the shape of interpolated contour
• The Generalize Polylines Wizard can be used to remove the excess vertices