Apple Newton Programmer’s Newton 2.0 (for Newton 2.0) - Manual (Page 704)

C H A P T E R 1 9
Built-in Applications and System Data
19-30 Notes
areaCode: "503",
region:"OR",
airport:"PDX"}
Using Longitude and Latitude Values 19
To calculate the latitude or longitude of a location, create and use the
following function:
CalcLngLat := func(dgrs, min, secs, westOrSouth) begin
local loc;
loc := dgrs / 180 + min / (180 * 60) + secs
/ (180 * 60 * 60);
loc := rinttol(loc * 0x10000000);
if westOrSouth then
loc := 0x20000000 - loc;
loc;
end;
The built-in utility functions LatitudeToString and LongitudeToString
return a string representation of an encoded integer latitude or longitude value. For
information on these functions see Newton Programmer’s Reference.
Setting the Home City 19
The SetLocation method sets the home city. It takes a single parameter
whichCity which is the same as the newCityFrame parameter of the NewCity
method; see “Adding a City to a Newton Device” beginning on page 19-29. The
following code makes Los Angeles the home city:
GetRoot().worldClock:SetLocation( GetCityEntry
("Los Angeles") [0] );
Notes 19
This section describes the Notes API. The Notes application uses three types of
stationery: regular notes, checklists, and outlines. Figure 19-6 shows a note and a
checklist; an outline (not shown) is like the checklist without the checkboxes.