{bigtext=20,85,"2D View"} {4}The program defaults to a view of the entire world. The easiest way to zoom in is press and hold the left mouse button at the center point of where you want to zoom, and drag out the zoom rectangle. When you let go, the program will zoom into the selected region. To zoom back out one level, simply click the right mouse button. There are other options for zooming in and out described below. There are different data types that can be shown in 2D mode. The default one which you see when you first run the program is a 1-km resolution image made up of many satellite photos tiled together. 1-km resolution means that each pixel is spaced 1 kilometer apart on the ground. This allows you to zoom in a great deal on the imagery in order to see features like individual lakes, mountains and other features. The program allows you to zoom in on the 2D image up to a scale of 1:220,000. {2}Menu Options:{4} {3}Display Type:{4} As mentioned above, the default data type shown is the satellite imagery. There is also shaded gray relief, and color-coded elevation data. To choose different data types, click on the 'Display Type' menu option on the right hand side, select one of the choices, and then press the 'close panel' arrow to accept or press ESC to cancel. {3}Details:{4} This allows you to turn on or off different vector data types which draw on top of the raster image. You can choose between different types of roads, rivers, railroads, borders, and city boundaries. Data types which are turned on show in green, and those which are turned off show in red. As with the 'Display Type' (or any other window), hit ESC to cancel, or 'close panel' to accept. {3}Search:{4} Allows you to search for different types of data. The program contains a searchable database of over 1.6 million populated place names, or 'localities'. Click on the 'search' button, and you will see a window with a text field where you can type in the name you want. The number in brackets after each word is the number of occurrences found in the database of that particular name. If You choose a name (for example, 'Fairview', which occurs many times in many countries, you can click on the 'Choose Locations' button to select one or more specific names to show from those found. Each name will be listed along with what country it is located in. You can highlight multiple items in the list using the standard Microsoft Windows method by holding down the control key as you click items in the list. You can then choose to draw only those you have selected, or all of them in the list. The names you found will be shown in red on top of the 2D map. In order to turn them off later when you don't want to show them anymore, simply choose 'search' again and then choose 'cancel'. If the name you searched for does not appear on the map after you choose 'draw', you may be zoomed in too far. Zoom back out farther on the 2D map and you should be able to see it. There is also a checkbox that, if turned on, causes the program to automatically zoom to the locations in the list, nicely centered on the map. {3}Measure:{4} Allows you the measure the distance between two points on the map. The distance units used are those currently shown on the scalebar at the bottom center of the map. {3}Names:{4} Toggle off or on the display of names on the map. Currently, country names show based on how far in you are zoomed on the map. If you are zoomed in past as scale of 1:1,500,000 then city names also show up. {3}Options:{4} Allows you to pick what color scale will be used when showing the shaded elevation data. Also, you can choose whether to apply the color scale to the global elevation range, or use the entire color scale for the area currently zoomed into (so that the color scale is stretched from the minimum to the maximum elevation value currently showing on screen). {3}Legend:{4} Shows the map legend window which gives the color for the different vector layers, and the different symbols used for different types of cities. If the cursor comes to within 15 pixels of any edge of the map (and you are not at the top zoom level), it changes into an arrow. If you click the left mouse button, the map will pan 80% of the width of the screen in the direction indicated. If you like, you can also use the arrow keys on the keyboard at any time to do the same thing. The 'tools' control panel at bottom right contains several tools for advanced zooming and other functions: - The arrow allows you to search for information about data showing on the map. If you click the arrow, it turns highlighted. You can then click on cities, countries, or major rivers on the map to get information about them. If city boundaries are turned on under 'Details', then if you zoomed in sufficiently far enough to see the city borders and you click on one of them, you can get the name of that city or town. As you click on multiple names, they appear in white on top of the current map. You can toggle them on or off by clicking on them again. If country names are turned on under 'names', then clicking on a country will take you to the information for that particular country. If major rivers (dark blue) are turned on under 'details', then you can toggle names off or on the same as city names. If you are zoomed in far enough, and localities and/or ocean place names are turned on, you will also see small dots. These are additional populated place names and ocean feature names which you can click to get the name for. You must click within 5 pixels of a named feature in order for the program to find it. You can continue to find names and display them on the map, or press ESC or right mouse button to quit. When done, you can print out the result using the print function at the bottom of the screen, and specifying 'copy raster image from screen'. Note that if country names are turned on under details, if you click somewhere on the map and it doesnt find a name because you did not click close enough to a named feature (city, locality, ocean feature, or major river), but you did click somewhere on land, you will get the screen for the country that you clicked on. - The magnifying glass allows more advanced control of the zooming in and out on the 2D map. There are many ways to zoom: - The standard method is to click and drag a zoom window centered at the initial mouse location on the map. The resulting map scale is shown as you drag the rectangle on the map. When you release the mouse, the map will be re-generated providing you did not choose too small an area. - To zoom back out to the previous zoom level, simply right click the mouse. - To make the zoom rectangle anchored from a corner rather expanding from the center point, hold down the shift key as you drag out the rectangle - Clicking the mouse rather than dragging out a zoom rectangle zooms in to 30% of the size of the current zoom window, centered at where the user clicks the mouse. - Conversely, the user can hit the control key to toggle the zooming mode. You will notice that when the cursor is over top of the map, the cursor changes into a magnifying glass with a '+' sign, signifying that if the user clicks the program will zoom in 30%. The control key toggles the magnifying glass between '+' and '-'. When the magnifying glass has a '-' sign, clicking the mouse on the map will zoom OUT 30% rather than IN 30%. - clicking on the '+' button on the tools control panel beside the picture of the magnifying glass lets the user then move the cursor over top of the map, and click to zoom in 30% centered at where they clicked. - clicking on the '-' button on the tools control panel beside the picture of the magnifying glass zooms out 30% from the current zoom window at the same center location if possible, regardless of whether the previous zoom level was 30% larger than the current zoom level or not. - The crosshair tool lets the user change the center point of the current zoom level to a new location. Click on the crosshair button, then click on the map where you want to shift the center point to. This function is available if you are not at the top zoom level. - The small picture of the world lets you jump all the way back up to the top zoom level regardless of how many levels you are zoomed in. This function is available if you are not at the top zoom level. The user can change the distance units of the scale bar at bottom center of the map by clicking on the scale bar. The units will cycle between kilometers, miles, nautical miles, meters, and many other more archaic units such as Roman miles and Furlongs. The value chosen is the one that will also be used in the point-to-point distance measurement function mentioned above. You will also notice that as the cursor moves over the map, the elevation of the land directly under the cursor is shown beside the elevation scale bar on the right hand side. The current latitude/longitude of the cursor location is also shown, along with the value of the geomagnetic declination (difference between true and magnetic north) at the cursor location. The map scale value shown at lower right is the map scale measured horizontally across the center of the map, taking into account the physical size of the monitor (14",15",17", or 21") specified by the user in the Options window or during installation. The user also can change the area units of the surface area measurement of the current map by clicking on the text at bottom left which displays the surface area. The units will cycle between acres, hectares, square miles, and square kilometers. If you click on the word 'elevation' at the top of the elevation scale bar at the center right side of the screen, you can change the elevation values shown throughout the program from meters to feet. This also works in the Globe and 3D View display modes. If you click on the panel showing the current latitude/longitude location of the mouse, you get a window which allows you to specify an exact center point to zoom in to on the world map. This function is available at the top zoom level. This would be useful if you wanted to center the map exactly at a point such as 0 degrees east/west and 0 degrees north/south. To zoom to a specific map scale (centered at the current center location of the 2D map, as opposed to dragging out a zoom rectangle with the mouse), left click on the map scale text at bottom right. The program stops you from zooming in any farther than a scale of 1:220,000. Also, as you zoom in to a very high level, the program starts to gouraud-shade the raster data in order to improve display quality. Regardless of whether the video card installed on your machine supports advanced graphics capabilities such as gouraud-shading, the software can still provide the smooth shading functionality in software so as to provide the best graphics quality.