An overview of the Triangulated Surface toolset

Available with 3D Analyst license.

The Triangulated Surface toolset offers a set of surface analysis tools that operate on terrain, TIN, and LAS datasets. They provide the ability to extract surface properties, such as slope, aspect, and contour isolines, identify outliers in the data points, make volumetric computations, and create 3D feature classes that model the surface.

• Learn more about measuring aspect
• Learn more about understanding slope
• Learn more about working with contours

The following list outlines the tools available in the Triangulated Surface toolset:

Geoprocessing Tool	Description
Decimate TIN Nodes	Creates a triangulated irregular network (TIN) dataset using a subset of nodes from a source TIN.
Extrude Between	Creates 3D features by extruding each input feature between two triangulated irregular network (TIN) datasets.
Interpolate Polygon To Multipatch	Creates surface-conforming multipatch features by draping polygon feature class over a surface.
Locate Outliers	Identifies anomalous elevation measurements from terrain, TIN, or LAS datasets that exceed a defined range of elevation values or have slope characteristics that are inconsistent with the surrounding surface.
Polygon Volume	Calculates the volume and surface area between a polygon and terrain or TIN surface.
Surface Aspect	Creates polygon features that represent aspect measurements derived from a TIN, terrain, or LAS dataset surface.
Surface Contour	Creates contour lines derived from a terrain, TIN, or LAS dataset surface.
Surface Difference	Calculate the displacement between two surfaces to determine where one is above, below or the same as the other surface.
Surface Slope	Creates polygon features that represent ranges of slope values for triangulated surfaces.

The following tools that were available in the 3D Analyst toolbox prior to version 10.0 have been deprecated and superceded by its counterpart listed in the Recommendation column:

Geoprocessing Tool	Recommendation
TIN Aspect	Use the Surface Aspect tool to extract aspect information from a TIN surface.
TIN Contour	Use the Surface Contour tool to extract contours from a TIN surface.
TIN Difference	Use the Surface Difference tool to calculate the volumetric difference between two TINs.
TIN Polygon Volume	Use the Polygon Volume to calculate the volumetric and surface area between polygons of an input feature class and a TIN.
TIN Slope	Use the Surface Slope to extract slope information from an input TIN.