WMS:Project Explorer Contents for Terrain Data Module

In the Terrain Data module, TINs and DEMs are listed in the Project Explorer. A toggle is next to each object; the toggle controls the visibility. The display is automatically updated when the toggle is checked or unchecked.

Right-clicking on the main Terrain Data folder allows creating a New folder or TIN. Because TINs can be created by digitizing in WMS, a new, blank TIN can be created. However, DEMs are only created by opening a DEM file type. If neither a TIN nor a DEM exists, then a Reprojection can be performed on any existing terrain data. There is also an option to open a digital elevation file. Opening a digital elevation file using this option will open an elevation grid as a WMS DEM.

TIN Object Right-Click Menu

Right-clicking on a TIN allows selecting any of the TIN processing or visualization options in WMS. The commands in this menu are as follows:

TIN object right-click menu

• Trim: Opens the Polygon Selection Options dialog.
• Merge: Opens the Merge TINs dialog.
• Filter: Brings up the Maximum filter angle dialog.
• Fill:
• Data: A submenu for adjusting datasets in the TIN. It contains the following commands:

• Calculator: Launches the Data Calculator dialog for modifying or creating datasets in the TIN.
• Smooth Dataset: Rounds the data values and creates a new dataset under the TIN with the smoothed values.
• Map Elevation
• Film Loop: Starts the Film Loop Setup dialog for creating a animation from the TIN.

• Vertices: A submenu for adjusting vertices in the TIN. It contains the following commands:

• Lock/Unlock
• Delete Duplicates
• Smooth Pits
• Transform

• Triangles: A submenu for triangulatin options in the TIN. It contains the following commands:

• Triangulate
• Insert Breaklines
• Optimization Triangulation
• Check Long/Thin Triangles
• Remove Flat Triangles

• Interpolate: A submenu for interpolating the TIN data to another module or TIN. It contains the following commands:

• To 2D Grid
• To TIN
• To Feature Objects

• Convert: A submenu for converting the TIN data to another module or DEM. It contains the following commands:

• TIN Contours→Feature
• TIN Boundary→Feature
• TIN→2D Scatter Points
• TIN→DEM

• Projection: A submenu for changing the coordinate system of the TIN. It contains the following commands:

• Projection
• Set as Display Projection
• Reproject
• Transform

• Options: Brings up the TIN Options dialog.
• Import Scalar Dataset: Imports a scalar dataset by first selecting the type of scalar dataset to import and then launching the Open dialog.
• Save As: Used to designate the path and prefix file name for saving a TIN.
• Properties: Brings up the Properties window for the TIN.
• Display Options: Brings up the Display Options dialog.
• Delete: Removes the TIN from the project.
• Duplicate: Creates a copy of the TIN.
• Rename: Lets the name of the TIN be changed in the Project Explorer.
• Zoom To Layer: Will resize the TIN data so it fills the Graphics Window.
• Metadata: Brings up a Metadata dialog.
• Generate Metadata XML From XMDF
• Compute Area Between Elevations

A TIN by default has a single elevation dataset, but additional datasets can be created, such as flood depth and water surface elevation datasets when delineating a flood plain. For more information on datasets see Datasets.

TIN Dataset Righ-Click Menu

TIN dataset right-click menu

Right-clicking on a dataset of a TIN allows the following options:

• Rename: Changes the name of the dataset in the Project Explorer.
• Export Dataset: Selects the file format and save the dataset.
• Delete: Removes the dataset from the TIN.
• Properties: Brings up the Properties window for the dataset.
• View Values: Opens the Edit Dataset Values dialog.
• Contour Options: Brings up the Contour Options dialog.
• Set as Elevations: Assigns the dataset as the elevation dataset for the TIN.

DEM Object Right-Click Menu

Right-clicking on a DEM allows selecting any of the DEM processing or visualization options in WMS. All DEMs are created by either reading a file or converting from another data object, such as a TIN or from raster GIS data. If multiple DEMs exist, these DEMs can be selected and merged together into a single DEM. There is only one active DEM. This active DEM is used for watershed delineation and for all other processes that require elevation data in WMS. A DEM raster can be cropped with a freehand polygon by selecting the Trim | Polygon option.

Related Topics

• Project Explorer Overview
• Coordinate Conversions