Click in the image window to raise it to the foreground.
- Position the cursor at Raleigh-Durham, North Carolina and
start the DIST command. Press Alt-G to enter Raleigh-Durham as the starting
point for measuring the distances.
Type: PC L KRDU;DIST
Press: Alt G
- Position the cursor at Bangor, Maine. Then press the middle mouse
button or Alt-G to measure the distance from Raleigh-Durham to Bangor.
Type: PC L KBGR
Press: Alt G
A distance of 1300.1 kilometers is marked on the frame and also listed in the
text window with the latitude and longitude measurements.
- Position the cursor at New York City. Then press Alt-G to
measure the distance from New York City to the starting point (Raleigh-Durham, 688.2 km) and to the previous point (Bangor, 612.2 km). Until you
reset the starting point, all of the starting point measurements will be made from Raleigh-Durham.
Type: PC L KNYC
Press: Alt G
- Press the
right mouse button to clear the starting point. Then position the cursor at New York City and press the middle mouse
button or Alt-G to set New York City as the new starting point.
Press: < right mouse button >
Type: PC L KNYC
Press: Alt G
- Position the cursor at Cleveland, Ohio, and press the middle
mouse button or Alt-G to measure the distance from New York City to Cleveland.
Type: PC L KCLE
Press: Alt G
The distance from New York City to Cleveland (666.9 km) is calculated.
- End the DIST command by pressing the middle
and right mouse buttons, or:
Press: Alt Q
- Position the cursor at Raleigh-Durham and draw a circle
encompassing the area within 100 km of the point.
Type: PC L KRDU;DIST CIR X X 100
This is useful for quickly determining the approximate distance between a
weather system and a particular location, as shown below.
- Exit McIDAS.
Type: EXIT