Surface models
In order to display layers draped over surfaces, the first requirement is the existence of a surface model. A surface model is a data layer that represents a continuous surface.
Surface Modeling
Surface modeling involves the translation of discrete point data into a continuous surface that represents the geographic distribution of data.
Surface Modeling
Profile Generator
Easy profile creation across multiple surfaces
Display and annotation of profiles and associated data such as vertical curves, superelevation diagrams, and digital terrain modeling (DTM) features ...
Surface Model Digital abstraction or approximation of a surface. Because a surface contains an infinite number of points, some subset of points must be used to represent the surface.
surface model
A representation of a geographic feature or phenomenon that can be measured continuously across some part of the earth's surface (for example, elevation). A surface model is an approximation of a surface, generalized from sample data.
A surface model was generated from elevation contour lines digitized from topographic maps at 50 m intervals by creating a triangulated irregular network (TIN), ...
Once we have a surface model, we can apply several analytical procedures that provide important information such as the volume of the surface, and the degree and orientation of the slopes.
Freeform surface modelling
Automated design of assemblies, which are collections of parts and/or other assemblies
create Engineering drawings from the solid models
Reuse of design components ...
See also surface model. surface model Digital abstraction or approximation of a surface. Because a surface contains an infinite number of points, some subset of points must be used to represent the surface.
In practice, surveyors first sample heights in an area, then use these to produce a Digital Surface Model (also known as a digital elevation model).
To learn more about interpolation methods, press F1 (the help menu) and navigate to "3D Analyst/Creating Surface Models/Interpolation Methods" in the table of contents.
Some people also use the term Digital Surface Model (DSM). DSM appears to be a synomym for DEM, but with the added possibility of being a component of a stack of surface models, for example modelling atmospheric or subsurface layers.
Attribute data
Geographic features
Satellite and aerial images (raster data)
CAD data
Surface modeling or 3D data
Utility and transportation systems
GPS coordinates
Survey measurements ...
Many sophisticated methods can estimate the characteristics of surfaces from a limited number of point measurements. A two-dimensional contour map created from the surface modeling of rainfall point measurements may be overlain and analyzed with any ...
Interpolation is commonly a raster operation, but it can also be done in a vector environment using a TIN surface model. There are several well-known interpolation techniques, including spline and kriging.
Directorate of Surveys and Mapping (South Africa); Dept. of Surveys and Mapping (Botswana); Digital stereo model; Digital surface model
DSN
Deep Space Network; Dataset Name; Data source name ...
3-D Visualization of Geologic Data -- Examples of Digital Elevation Models (Dave Miller) Environmental Modeling and Visualization with GRASS (US Military) -- Interacting fields; surface modeling; multidimensional modeling; ...
Logan enthusiastically described one of the latest innovations, Digital Surface Models (DSMs) developed directly from digital aerial camera images.
 See also: Surface, Model, Information, Analysis, Modeling
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