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#redirect [[WMS:Project Explorer Contents for Terrain Data Module]] ...change the active module to the Drainage module by selecting the Drainage Module.

...ndaries from digital elevation sources such as TINs and DEMs. The Drainage module includes all of the commands necessary to perform the automated delineation ...thod is simpler and more repeatable because of the uniform nature of a DEM data structure. When inadequate elevation resolution is available (i.e. many urb

...One important thing to remember is that deleting in WMS does not cause the data to be permanently removed or erased from the hard drive, but rather elimina The methods that can be used to delete data from WMS include:

[[File:Hmswms1.PNG|thumb|400 px|Hyydrologic Modeling module using HEC-HMS]] ...nstruction of topologic watershed models in the absence of digital terrain data.

...leExample.png|thumb|250 px|Examples of arcs drawn over DEM data in the Map module]] ...y clicking the [[File:Map Module Icon.svg|16px]] icon on the [[WMS:Modules|Module toolbar]]. These feature objects are grouped onto [[WMS:Coverages|coverages

To use [[WMS:TIN Guidelines|TIN data]] in WMS, use the following steps: :# Switch to the [[WMS:Terrain Data Module|'''Terrain Data Module''']] [[File:WMS TerrainIcon.svg|16 px]].

...tte'' change to the set of tools associated with the selected module. Each module has a separate set of tools. ...the command. For example, to delete a set of triangles in the Terrain Data module, the '''Select Triangles''' tool is chosen, the set of triangles to be dele

...S:Help Menu|''Help'']]). The remaining menus are dependent on the selected module. ...ed until the proper conditions exist. Typically this means the appropriate data has not yet been created or selected.

...information on [[WMS:River Tools|River Tools]] in the [[WMS:Map Module|Map module]]. ...ne using the cross section editor from the ''River Tools'' menu in the Map module (when River Tools is the active model).

...e from groups of scattered data points to grids or TINs. The Scatter Point module can be used to interpolate from a set of scattered xy points representing s ...File:Create Points Tool.svg|14 px]] tool. The most common use of scattered data is for creating water surface elevations to compute a floodplain delineatio

...o icons used on the [[WMS:Macros|Macro]] toolbar, Modules toolbar, and Get Data toolbar. File:WMS TerrainIcon.svg|Terrain Data Module

...oolbar. The Project Explorer contains a hierarchical representation of the data associated with a modeling project. ...he data in multiple ways, including creation of new data objects, deleting data objects, and the control of display.

...age modules. For example even if you have a TIN loaded, but are in the map module the z value will not be displayed. ...the function value of the active data set. When there is only an elevation data set loaded, this should be the same value as the elevation.

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

...information on [[WMS:River Tools|River Tools]] in the [[WMS:Map Module|Map module]]. #Prepare a background [[WMS:TIN Guidelines|digital terrain model]] that represents the river channel bathymetry and surrounding floodp

[[File:WMS DynamicToolsQuick.png|thumb|right|The toolbar for the Terrain Data module.]] ...has a variety of tools useful for editing and creating objects within that module. The tools are described below.

...rmation on 1D Hyd Centerline and 1D Hyd Cross Section coverages in the Map module. # Import bathymetry data.

...itization on screen. The data is stored as sets or groups of 2D scattered data points with associated values. The most common value is bathymetry and is ...errain surface better. TINs are used for a source of bathymetric or other data in a numerical model. TINs can also be used to compute areas, volume, di

GIS data is especially useful in WMS for delineating watersheds and computing Orange ...automated when digitial terrain data (DEMs or TINs) exists within WMS. GIS data may be used to identify geometric features such as sub-area boundaries, str

...e Terrain Data module provides commands for converting TIN data into other data. ...r_Point_Module#Scatter_Point_Sets|2D scatter point set]] from the TIN. One data point is created for each of the vertices in the TIN. A dataset is made of