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Viewer

The Blue Marble Calculator contains a built-in viewer for displaying both vector and raster file formats. You can access this window by selecting the View button or selecting Window>Viewer from the drop-down menu. Some options for the Viewer can be set in the Viewer tab of the Preferences dialog.

Add a layer to the window by selecting the Import Data Into New Map button on the Left of the Viewer toolbar.  You will recognize most of the common control icons from typical windows viewing programs and can be reminded of their function by mousing-over the icon for a pop-up description.  If detected, the coordinate system of the data will be displayed in the upper left corner.

To change the background color to a more contrasting value, right click on the map and select Change Background Color.  This will launch a color picker allowing you to select a color of your choice.

To change the appearance of particular layers in the viewer, right click on the layer name in the Vector Layers list on the right and select Appearance.  A menu will pop-up allowing you to select from various point, line, or polygon styles.

There are a number of different tool buttons available in the viewer:

Zoom In

This tool allows the user to zoom in on a map.

Zoom Out

This tool allows the user to zoom out on a map.

Zoom to Rectangle

This tool allows the user to zoom into a specified area of a map.

Pan

This tool allows the user to pan around a map.

Recenter

This tool allows the user to recenter a map.

Zoom to Map Extents

This tool allows the user to zoom so that the map is fully visible.

Go to Previous View

This tool allows the user to go back to a previous view (i.e. if the user just zoomed out, clicking this button will go back to the view prior to the zoom).

Go to Next View

This tool allows the user to return to the current view (i.e. if the user just zoomed out, then clicked Previous View, clicking this button will go back to the current "zoomed out" view).

Create a New Map

This tool allows the user to create a new map.

Add Layer(s) to the Current Map

This tool allows the user to add one or more layers to the current map.

Remove All Layers from All Maps

This tool allows the user to remove all layers from all maps.

Export to Geospatial PDF

This tool allows the user to export the current data that is loaded into the viewer out to a Geospatial PDF.

Add an Area of Use polygon from GeoCalc

This tool allows the user to define an Area of Use by importing a GeoCalc polygon

Select

This tool allows the user to select a particular item from the map.

Select with Rectangle

This tool allows the user to select all items that overlap the rectangular selection field.

Select with Circle

This tool allows the user to select all items that overlap the circular selection field.