Boundaries: These six toggle switches indicate which items are to be included in the maps, namely: coastlines, country boundaries, U.S. state boundaries, islands, lakes and rivers. A checkmark by an item indicates that the item is to be included. Boundary Colors: These items allow the user to select the color in which each boundary item will be drawn. Each boundary item (e.g., coastlines, lakes, etc.) may be drawn in a different color. Box: This item generates a "flat" map of any portion of the Earth's surface that lies inside a user-selectable rectangular region on a flat or Mercator map. If a flat map is not currently being displayed, then a flat map is first displayed. The user selects the rectangular region by first pressing the left mouse button to select one vertex of the rectangle, dragging the mouse to define the box, then releasing the left mouse button when the desired area has been selected. The user may also cancel this entire selection by pressing the right mouse button before initially pressing the left mouse button. Box Zoom In: This item may only be used after the user has previously selected either the Box, Box Zoom In or Box Zoom Out items. This item allows the user to select a rectangular box within the currently-displayed box for closer inspection, thereby further expanding the view of that smaller box. The smaller box is selected as described in the Help entry for the Box item. The user may cancel this selection by pressing the right mouse button before initially pressing the left mouse button. Box Zoom Out: This item may only be used after the user has previously selected either the Box, Box Zoom In, or Box Zoom Out items. Selecting this item causes the limits (both latitude and longitude) of the currently-displayed box to be increased by a factor of 2, and all regions within that larger box are then displayed. Clear Screen: This item causes the entire screen to be cleared to the default background color (blue). Detail Level: This item indicates how much detail the maps are to include (e.g., high, low, etc.). The more detail, the more time required to draw the maps. Draw Line: This item allows the user to draw a connected line by first pressing and holding down the left mouse button, and then moving the mouse while continuing to hold down the left mouse button. Releasing the left mouse button terminates the line drawing function. The user may cancel this selection by first pressing the right mouse button before pressing the left mouse button. Flat: This item generates a simple, "flat" map of the entire Earth's surface. Unlike the Mercator map, there are no special properties of this sort of plot. Flood Color: This item allows the user to select the color to be used in color-filling regions. The color is selected by releasing the right mouse button over the desired color. The currently-selected color is indicated by a check mark. Flood Fill: This item causes a contiguous area to be color filled. Pressing the left mouse button results in the area underneath the mouse being color-filled with the color selected for color-filling (see the Help entry for the Flood Color item). The color of all contiguous points of the same color as the point under the mouse is changed to the flood- fill color. The user may cancel this item by pressing the right mouse button. Globe: This item generates a plot of an entire hemisphere of the Earth's surface, i.e., that part of the globe that would be visible if seen from infinitely far away, but with a very powerful telescope. If the user selects this item when either a "flat" or Mercator map is already displayed, then the user may immediately select the point on the Earth's surface which is to be in the center of the globe view. If a flat or Mercator map is not currently displayed, then a flat map is "blittered" onto the screen and the user may select the center point. The user may either select the center point by pressing the left mouse button, or cancel the selection by pressing the right mouse button. Grid: This item generates grid lines on the type of map currently being displayed. The only valid maps on which to plot the grid lines are the "flat", Mercator, globe, and orbital maps. Help: Selecting this item results in a window appearing, with a gadget labelled for each menu item. Pressing the left mouse button on a particular gadget results in a display of the Help entry for that particular menu item. Pressing the left mouse button on the OK gadget terminates the display of the Help entry for that menu item. Pressing the left mouse button on the Exit Help gadget terminates the Help function. Line Color: This item allows the user to select the color to be used for drawing lines. The color is selected by releasing the right mouse button over the desired color. The currently-selected color is indicated by a check mark. Mercator: This item generates a standard Mercator projection of the entire Earth's surface. Orbital: This item generates a plot of the Earth's surface as seen from a user-selectable altitude. As in the Globe item, the user may either select the center point of the view (by pressing the left mouse button over the desired spot on the Earth's surface) or cancel the item by pressing the right mouse button. If the user presses the left mouse button, then a requester is presented which prompts the user to enter an altitude from which to view. Note that the entire visible portion of the Earth's surface is plotted, no attempt being made to clip the visible portion to a user's hypothetical window as seen from an orbiting spacecraft. This results in a sort of "fish-eye" effect, but it does show the entire portion of the globe visible from that altitude. Palette: This item gives the user full control over the entire palette. A window is opened showing the current palette, slider bars and RGB values which can be directly modified. Any or all colors may be modified, the resulting color changes being immediately reflected on the screen. Print Map: This item causes the currently-displayed map to be printed on the printer specified in the user's standard Amiga Preferences file. Quit: This item causes the program to clean up after itself and terminate. Redraw: This item causes the last map drawn to be redrawn. This is useful, for example, when one changes the detail level and wants to see the same map drawn at the new detail level. Reset Colors: This item causes the default palette (and NOT the user's personal palette in the "drawmap.config" file) to be loaded. The colors on the displayed screen are immediately modified. Save Config: This item causes the user's palette to be saved into a file named "drawmap.config". When the program is next executed, it looks for this file and, if found, loads the palette contained therein. Save Map: This item allows the user to save to disk the currently-displayed map. A file requester is first displayed as a prompt to the user to select a file name, after which the map is saved as a standard IFF file. It may then be displayed by any well-behaved IFF display program or loaded into any normal paint program. Shadow: This item causes drop-shadows to be generated on the currently-displayed map. The only colors for which shadows are not generated are "black" and the background "blue". Text: This item allows the user to enter text and place it anywhere on the screen. A text requester is displayed, into which any desired text may be entered. Pressing the "return" or "enter" key terminates the requester, and a box (of size equal to the size of the specified text) is displayed at the mouse position. The user then positions the text by moving the mouse. Pressing the left mouse button stamps down the specified text onto the currently- displayed map. Pressing the right mouse button cancels the selection (i.e., no text will be stamped down). Text Color: This item allows the user to select the color to be used for user-specified text. The color is selected by releasing the right mouse button over the desired color. The currently-selected color is indicated by a check mark. Toggle Title: This item causes the screen title bar to be alternately turned on or off. Zoom In: This item generates an Orbital view as seen from one-half the previous orbital altitude. If no previous Orbital view had been generated, then the altitude is one- half the initial, default altitude of 300 kilometers. Also in that case, a "flat" map is first presented from which to select the point on the Earth's surface to be directly underneath the viewpoint. The user may cancel this item by pressing the right mouse button. Zoom Out: This item generates an Orbital view as seen from twice the previous orbital altitude. If no previous Orbital view had been generated, then the altitude is twice the initial, default altitude of 300 kilometers. Also in that case, a "flat" map is first presented from which to select the point on the Earth's surface to be directly underneath the viewpoint. The user may cancel this item by pressing the right mouse button. Exit Help: This selection terminates the Help function.