ArcGIS Lesson: Transforming surface data into vector data

Although Tin (tin) and Terrain data collection is considered a carrier surface. But they actually include elements based on other information. And that information is in the image point, line, or polygon primitives which may be a more practical formula. In ArcGIS, you can easily surface data for the carrier function.

By applying this conversion operation during selection, overlay, and modeling, you will enhance your analytical capabilities.

You may want to convert three surfaces to vector data, such as points, lines, and polygons. The ability to convert raster, TIN, and Terrain dataset surfaces to vector data using three different methods.

　　Raster surface to Vector features

Raster surfaces that include elevations are typically extracted as polygon feature data that can be used for multivariate analysis, location suitability analysis, overlay analysis, or other analytical operations. The ability to use several geoprocessing tools to convert a raster surface to vector feature data.

The following demo example uses the raster to polygon tool to convert a DEM raster to a polygon to be analyzed. This analysis finally generates a classification polygon feature that can be used in conjunction with other feature layers.

　　

　TIN Surface to Vector features

Converting a TIN to a feature requires only a very small number of steps. The ability to extract slope and aspect polygon feature classes directly from the tin surface, as well as to extract the elevation values of nodes in a tin as Point feature classes.

This type of feature extracted from a TIN can be used like the slope and polygon features extracted from the raster. Ability to convert TIN features to vector features using a variety of geoprocessing tools. These tools can be found in the 3D Analyst Toolbox transformation >> from the TIN-to-go toolset.

The following shows a sample example of converting a TIN to a point feature layer.

　　

　　Terrain data set surface to vector features

Terrain datasets are unique, because vector feature classes must be involved in the creation of terrain datasets. This means that you are fully likely to be able to access point, line, or polygon feature data in a terrain that is the source data. But. When you create a terrain dataset, multipoint features may actually have been embedded in the dataset. You can use the Remove feature class from terrain tool to extract the Multipoint feature class embedded in the terrain dataset.

For other Terrain surface-vector transformations, this process is similar to tin-vector feature transformations. However, there is a very clear difference between the two transformations, that is, you need to first convert the terrain dataset to a TIN. The advantage of this is that you can select the dataset pyramid only if the terrain DataSet Pyramid agrees to generate a TIN at a non-full-resolution level of detail.

This approach can greatly improve performance because the conversion component does not select all nodes at full resolution.

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ArcGIS Lesson: Transforming surface data into vector data