The View menu is used to select a standard viewpoint from which the
globe is seen, change movement settings, or to enter or select a custom
viewpoint. It lists the following choices:
- Set viewpoint...
- Opens the Viewpoint dialog which lets you
select a particular point on the globe's surface.
- Find viewpoint
- Places the custom viewpoint at the center of view.
- Movement settings...
- Opens the Movement settings dialog which
lets you change settings that affect movement of the view of the globe.
- Europe & Africa (0°)
- Places the Intersection of the Equator and the Greenwich Meridian
(0°N, 0°E) at the center of view.
- Americas (90°W)
- Places 0°N, 90°W at the center of view.
- India & Asia (90°E)
- Places 0°N, 90°E at the center of view.
- Pacific (180°)
- Places the Pacific ocean (0°N, 180°E) at the center of view.
- North Pole
- Places 90°N, 0°E at the center of view.
- South Pole
- Places 90°S, 0°E at the center of view.
- Snap to equator
- Centers the view at latitude 0°N and leaves the longitude at the
center of view unchanged.
- Snap to Greenwich
- Centers the view at longitude 0°E and leaves the latitude at the
center of view unchanged.
All menu choices may be selected by the Graffiti short cut shown next
to the choice.
The Viewpoint dialog lets you enter the coordinates (latitude and
longitude) of a point on the surface of the globe. If a valid point is
entered, the Done and Tap buttons will be visible and you
can then save the point (by tapping Done) or both save and
select the point by tapping Tap. The latter has the same
effect as tapping the globe directly with the stylus, with the
advantages that:
- the entry can be more precise than when using the stylus
- you can 'tap' on points that cannot be seen (for example, in
darkness, or on the other side of the globe).
A coordinate may be specified in degree°minutes'seconds"
format, or in degree.decimal format, as described in detail in
Formats for specifying degrees.
The Paste button is used for directly pasting coordinates into
the dialog. For instance, if you had a list of cities and their
coordinates in a Memo Pad document you could use the Palm Find
button (at the bottom right of the screen) to find the line:
37°48N 122°24W San Francisco
The two coordinates (or the whole line) can then be selected by
dragging the stylus across the line, and then copied to the clipboard
using the Copy function from the Edit menu (command /C).
On returning to Palm Globe and the Viewpoint dialog, the coordinates can
simply be entered by tapping the Paste button. This special
paste button takes the first two candidate words (words that start with
a sign or a digit) and puts the first into the latitude field and the
second (if any) into the longitude field.
At any time, the Undo button may be used to revert the fields
to the values they had when the dialog was entered.
Like all the Palm Globe dialogs, tapping on the 'i' icon on
the title bar of the dialog gives tips on using the dialog.
The Movement settings dialog lets you change settings that affect
movement of the view of the globe.
Any changes take effect when the Done button is tapped.
The settings are:
- Move globe to tapped point
-
When this setting is checked, tapping on the globe (whether by using the
stylus directly, or using the Tap button of the Viewpoint
dialog) will cause the view to be changed so the tapped point becomes
the center of the view. It is useful to uncheck this setting when
measuring distances.
- Rotate with sun
-
When this setting is checked, the view of the globe will rotate in
synchronization with the sun. That is, when the globe is refreshed
automatically the longitude of the current viewpoint is adjusted by the
amount that the longitude of the sun has moved. The latitude of the
current viewpoint is not changed.
At any time, the Undo button may be used to revert the
settings to the values they had when the dialog was entered.
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Copyright (c) IBM Corporation, 1998. All rights reserved. ©
Author:
Mike Cowlishaw,
mfc@speleotrove.com