Parameter

Activity

Appearance

Name

Type the description or name of the layer.

This text appears in the Project Tree as the name of the layer.

Activation Action

Select the action to perform when selecting the layer from the Project Tree.

Line Color

Select the outline color for the layer.

Click the Edit button to open the Color dialog, or type the color code in hexadecimal BBGGRR format (B = Blue channel 00-ff, G = Green channel 00-ff, R = Red channel 00-ff).

Line Opacity

Enter the opacity for the layer’s outline.

The opacity is defined as a percentage, where 100% is opaque and 0% is transparent.

Fill Opacity

Enter the opacity for the layer data.

The opacity is defined as a percentage, where 100% is opaque and 0% is transparent.

Line Style

Line Width

Enter the layer's line width.

The width is measured in meters.

Line Back Color

Sets the layer's line back color. This field is only available when Altitude Method is set to On Terrain.

The layer's line back color is visible when the line pattern is set to non-solid patterns such as a dotted pattern.

Click the Edit button to open the Color dialog, or type the color code in hexadecimal BBGGRR format (B = Blue channel 00-ff, G = Green channel 00-ff, R = Red channel 00-ff).

Line Back Opacity

Enter the layer's line back opacity. This field is only available when Altitude Method is set to On Terrain.

The opacity is defined as a percentage, where 100% is opaque and 0% is transparent.

Line Pattern

Select the layer's line pattern. You can choose between different line patterns, e.g., solid, dashed, dotted or a combination thereof.

Timespan

Start Time

Click Edit and select the date and time when the layer should first become visible.

End Time

Click Edit and select the date and time when the layer should stop being visible. 

Points Position

The parameters in this group are enabled only when Edit Nodes , on the top bar of the property sheet, is selected.

Selected Point

Select the point to edit.

The selected point is highlighted in the 3D Window.

When you edit this point, the corresponding point on the base or the top of the polygon changes accordingly.

Point X

Enter the X-coordinate for the selected point.

Point Y

Enter the Y-coordinate for the selected point.

Point MGRS

The coordinates of the selected point in Military Grid Reference System (MGRS) coordinates. This field is only available if Show MGRS Coordinates was selected in the Options dialog. See “View” in the “Using TerraExplorer Options” chapter for more information.

Imagery/Elevation

Imagery/Elevation File

Type the full path of the file, or use the Edit button to browse to a supported imagery/elevation file or to open the Web map server browser dialog if loading a layer from a Web Map Server (WMS).

Upper Left X

Enter the X-coordinate of the layer top-left corner.

Upper Left Y

Enter the Y-coordinate of the layer top-left corner.

Upper Left MGRS

The coordinates of the layer top-left corner in Military Grid Reference System (MGRS) coordinates. This field is only available if Show MGRS Coordinates was selected in the Options dialog. See “View” in the “Using TerraExplorer Options” chapter for more information.

Lower Right X

Enter the X-coordinate of the layer bottom-right corner.

Lower Right Y

Enter the Y-coordinate of the layer bottom-right corner.

Lower Right MGRS

The coordinates of the layer bottom-right corner in Military Grid Reference System (MGRS) coordinates. This field is only available if Show MGRS Coordinates was selected in the Options dialog. See “View” in the “Using TerraExplorer Options” chapter for more information.

Auto Refresh Interval

The time interval, in seconds, for auto-refreshing the layer. The minimum interval is 10 seconds.

Elevation Scale

Change the elevation data to a new value.

This feature enables you to adjust several elevation sources that are defined with reference to different baselines, such as different sea levels. The elevation data in the source file is changed to a new value where: New Value = Old Value * Scale Factor + Offset Value

Elevation Offset

Change the elevation data to a new value.

This feature enables you to adjust several elevation sources that are defined with reference to different baselines, such as different sea levels. The elevation data in the source file is changed to a new value where: New Value = Old Value * Scale Factor + Offset Value

Remove Null Value

Select Yes to display the color or elevation data whose value is nullified. Select No to keep the selected value nullified.

Null Value

Nullify a color value in an imagery layer or an elevation value in an elevation layer:

§  Imagery Layer - Nullify a color value to make the underlying terrain visible in places that are colored with the nullified color value.

§  Elevation Layer - Nullify an elevation value to cancel the value's elevation effect.

Null Tolerance

Enter the permissible deviation from the specified Null value when the color value is irregular.

Draw Polygon

Click the Draw button to clip a subsection of the raster.

Place the polygon points in the 3D Window by clicking in the desired location. You must place at least three points. Finish the polygon creation by right-clicking.

Note:    When creating a filled polygon, the lines of the polygon should not overlap each other. This may result in an irregular fill pattern.

Reset Polygon

Click to restore the original raster.

Import Polygon

Click to import a shapefile which contains the clip polygon you want to use.

Projection

Reproject Source

If you want to reproject the source’s geographic information from the source coordinate system to the terrain coordinate system, select Yes.

Reproject Elevation

Select the check box to reproject the layer’s elevation values to the terrain’s coordinate system. This option only applies when Altitude Method is set to Absolute. Geocentric layers are always reprojected.

Description

Free text describing the coordinate system.

Coordinate System

Click Set to open the Coordinate System dialog, and set the required coordinate system. See “Coordinate System Dialog” in the “Basic Concepts” chapter for information.

Visibility

Default Viewing Distance

Determines the viewing distance of the camera from the layer.

This distance is used as a stop mark for any “Fly-to” or “View Object” operation. It is also used when selecting to edit the layer from the Project Tree.

When this value is set to the default of -1, TerraExplorer calculates and sets the ideal viewing distance for the layer based on its size.

Max. Visibility Distance

Sets the distance from the camera at which the layer disappears.

Min. Visibility Distance

Sets the minimal distance from the camera below which the layer disappears.

General

Show in Viewer

Determines if the layer appears in the Project Tree when the file is viewed with the TerraExplorer Basic viewer.

Message

The message associated with the object. The number displayed is the number of the message.

To create a new message, or update an existing message, open the Create Message dialog by clicking in this field and selecting Edit. See “Using the Create Message Dialog” in the “Working with Objects” chapter for more information.

Tooltip

Type a Tooltip text to appear when the mouse cursor is placed over the layer in the 3D Window.

Order

Determines the order of objects with On Terrain altitude method, from back to front.

Objects with higher values are displayed on top of objects with lower values.