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ISurface Interface (ArcObjects .NET 10.5 SDK)
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ArcObjects Library Reference (GeoDatabase)  

ISurface Interface

Provides access to members that control surfaces.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Members

Description
Method AsPolygons Converts the surface to a polygon feature class representing slope or aspect.
Method Contour Output contours based on the specified root value and interval.
Method ContourList Output a list of contours corresponding to the specified eleveation values.
Read-only property Domain The interpolation domain of the surface.
Method GetAspectDegrees Returns the aspect at the specified location in degrees.
Method GetAspectRadians Returns the aspect at the specified location in radians.
Method GetContour Returns a countour passing through the queried point.
Method GetElevation Returns the z value of the specified location.
Method GetLineOfSight Computes the visibility of a line-of-sight from the observer to the target.
Method GetProfile Returns a polyline with z values interpolated from the surface.
Method GetProjectedArea Returns the projected area of the surface above or below an input z value.
Method GetSlopeDegrees Returns the slope at the specified location in degrees.
Method GetSlopePercent Returns the slope at the specified location in percent.
Method GetSlopeRadians Returns the slope at the specified location in radians.
Method GetSteepestPath Returns the steepest path downhill from the specified point.
Method GetSurfaceArea Returns the area measured on its surface above or below an input z value.
Method GetVolume Returns the volume above or below an input z value.
Method InterpolateShape Interpolates z values for a defined geometric shape.
Method InterpolateShapeVertices Interpolates z values for a defined geometric shape at its vertices only.
Method IsVoidZ Returns TRUE if the passed value is equal to the surface's void value.
Method Locate Returns the intersection of the query ray and the surface.
Method LocateAll Returns the distances of intersections of the query ray and the surface.
Method QueryNormal Returns the vector normal to the specified triangle.
Method QueryPixelBlock Derives slope, aspect, hillshade, or elevation from the input surface and writes the result to the provided PixelBlock.
Method QuerySurfaceLength Returns the length of an input polyline measured on the surface.
Read-only property Z The surface Z=f(x,y).
Read/write property ZFactor Multiplication factor applied to all z values to provide unit-congruency between coordinate components.

Inherited Interfaces

Interfaces Description
IFunctionalSurface Provides access to information about the functional surface, generating heights given x,y locations. Also see IFunctionalSurface2.

CoClasses that implement ISurface

CoClasses and Classes Description
RasterSurface (esri3DAnalyst) The Esri raster surface component.
Tin The Esri TIN component.