| Interpolates contours from an
ESRI TIN or PolygonZ TIN. The contours can be created as PolylineZs with
constant Z values representing the elevation.
Inputs:
- An ESRI TIN or PolygonZ TIN
- Base value - the contour from which to
begin generation of contours.
- Contour interval - Z value difference
between adjacent contours in map units.
- Option for interpolating 3D contours.
Outputs:
- New polyline feature class.
- A new field ET_Height is added to the
attribute table. The values of this field contain the Z value for each
contour.
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.
ToolBox
implementation
Command line syntax
- two different toolbox tools available depending on the type of the input TIN.
Check the color coding for specifics.
| ETS_GPContoursFromEsriTIN <Input
TIN> <Out Feature Class> <Base Contour> <Contour Interval>
{3D Contours} |
| ETS_GPContoursFromPolygonZTIN <Input
TIN> <Out Feature Class> <Base Contour> <Contour Interval>
{3D Contours} |
Parameters
| Expression |
Explanation |
|
<Input TIN> |
An ESRI TIN
layer or dataset |
| <Input
TIN> |
A PolygonZ TIN (feature class) |
| <Out Feature Class> |
A String
- the full name of the output feature class. |
|
<Base Contour> |
A Double representing the Z
level of the contour from which to begin
generation of contours. |
| <Contour
Interval> |
A Double representing the
contour interval |
| {3D
Contours} |
A Boolean indicating whether
the output to be Polyline or PolylineZ feature class |
Scripting syntax
ETS_GPContoursFromEsriTIN (Input
TIN, Out Feature Class, Base Contour, Contour Interval, 3D Contours)
ETS_GPContoursFromPolygonZTIN (Input
TIN, Out Feature Class, Base Contour, Contour Interval, 3D Contours)
See the explanations above:
<> - required parameter
{} - optional parameter
All ESRI
products mentioned are trademarks of Environmental Systems Research
Institute, Inc.
Copyright: Ianko Tchoukanski |