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...terpolated from the background elevation map for TIN vertices created from feature arcs vertices. ...other words, it is possible to read in portions of the DEM and interpolate to TIN multiple times. Elevations for TIN vertices that are not within the ext

...iew® program and it has become the defacto standard for sharing GIS vector data (points, lines, and polygons). ...r polygons. Shapefiles are opened through ''File'' | '''Open'''. Only map data can be saved out from SMS as a shapefile.

;4.2.a. Basin Data Equations :[[WMS:Overview of Basin Data Equations|Overview of Basin Data Equations]]

* '''Delete''' – Removes all DEM data ** '''Polygon''' – Uses selected polygons to trim the DEM.

...active module is changed, the tools in the'' Dynamic Tool Palette'' change to the set of tools associated with the selected module. Each module has a sep ...ta module, the '''Select Triangles''' tool is chosen, the set of triangles to be deleted are selected and the Delete command is selected from the Edit me

#Identify the watershed outlet and covert DEM streams to arcs. #Convert DEM basins to polygons.

==Drainage Basin Area== ...f having delineated a watershed from feature objects, a DEM, or a TIN, the drainage area can be computed and will automatically be updated in this field.

[[File:TR20basindata.png|thumb|400 px|Example of the ''TR-20 Basin Data'' dialog.]] ...de. If selecting and assigning data to these fields, this data is assigned to all the selected sub-basins.

When the active module is changed, the menus change to a set of menus associated with the selected module. The first three menus ( ...ed until the proper conditions exist. Typically this means the appropriate data has not yet been created or selected.

...hen adding icons to documents, please click on the icon on this page to go to were the icon file is stored. Do not copy the images on this page. ...o icons used on the [[WMS:Macros|Macro]] toolbar, Modules toolbar, and Get Data toolbar.

...ot dimmed) and follow the rules of multi-selection. For example if wanting to set the value of ''i'' (rainfall intensity) for all basins then select all ...mmand in the ''TIN'' or ''DEM'' Drainage module menus, or in the ''Feature Objects'' Map module menu.

The ''Feature Objects'' menu has the following commands: The '''Delete''' command will delete all feature objects and any unsaved data.

...not fit as part of any module such as the background color, the color used to contrast selections (XOR), as well as a few others. ...Colors|polygon]] in the currently selected color depending on the type of feature. [[#Changing Color|Colors can be changed quickly]] by selecting the drop-do

## '''Convert to:''' State Plane NAD 83, Arizona Central Zone, horizontal and vertical units # Read into WMS any image data to be used.

...lt is that each DEM point gets assigned the ID of the sub-basin it belongs to. ...is possible to create a stream arc along the highway alignment and leading to a culvert or bridge crossing. The resulting basin delineation will then "ca

...data for and entering data for HMS models. These models can then be saved to HMS format and the model can be run in HMS. The results from these models c ...ting DSS files, allowing for reading and writing time series data from and to HMS.

The ''TIN'' menu in the Terrain Data module has the following commands: ...il for a part of the project (such as a roadway profile) and it is desired to combine that with a TIN derived from a DEM of the surrounding area.

...ormatted files]]. This GIS data is overlaid with drainage basin boundaries to compute area-weighted composite model parameters for each sub-basin. In summary the following data are used for computing composite model parameters:

The Time Computation coverage type allows users to define equations along arcs for computing flow path travel times within a b ...ld always define them from “downstream” to “upstream” in the same way that drainage arcs are defined.

...coverage can be generated so that regions can automatically be mapped to a drainage coverage when performing hydrologic analysis using the NSS regression equat If wanting to digitize the state: