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Interpolate Contours
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Implementation
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 function can be used to smooth the shape of
interpolated contour
- The Generalize Polylines function can be used to remove the
excess vertices
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implementation
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Command line syntax
ET_GPInterpolateContours <input_dataset>
<out_feature_class> <Base_Contour><Contour_Interval>
Parameters
| Expression |
Explanation |
| <input_dataset> |
A
PolygonZ feature class or feature layer. |
| <out_feature class> |
A String
- the full name of the output feature class (A feature class with the same full
name should not exist) |
| <Base_Contour> |
A Double representing the the contour from which to begin generation of contours. |
| <Contour_Interval> |
A Double representing the Z value difference between adjacent contours in
the units of the TIN. |
Scripting syntax
ET_GPInterpolateContours (input_dataset out_feature_class
Base_Contour Contour_Interval)
See the explanations above:
<> - required parameter
{} - optional parameter