LL method of entry of angles
>
> I notice most of your examples had "0" as the second character (when value < 100).
> Was that just for clarity, or is it a requirement of the LL/Frame method?
It's a requirement due to the default behavior of the software, which assumes the last angle code to be in effect unless changed by the current entry. For example, if your first entry was N82°13'47"E -- which you entered as 1082.1347 -- and your next bearing is N31°44'06"E, you'd enter the latter as 31.4406 -- no angle code necessary. But if you've just entered a north azimuth of 347°02'14" and your next course is S18°33'36"W, you'd have to enter it as 3018.3336, because if you enter 318.3336 (the HP convention), the software will interpret that as a north azimuth (the implied angle code).
It might sound sort of complicated, but it's very fast in use.
The system also handles negatives well. For example, if you have a bunch of NE bearings in a row followed by a NW bearing and then a bunch more NE bearings, you'd enter the code on the first one, then no code for the rest, simply putting a minus sign in front of the NW bearing to keep running with the implied code.
Works for me!
LL method of entry of angles
So new chars replace existing chars from the right --a bit like bank machines or microwave ovens-- but replacing existing chars they land on?
Fast entry of quadrant bearings
Hi Jim,
Thanks from one old, defunct guy that had the fun of translating ideas and formulas into code for LLCOGO. Using number codes kept the operator on the numeric keypad. There are a number of exceptions however....such as:
Appending an "R[number] to the angle entry repeats the last entry the specified number of times. This was added for POTs and POCs or any other place repeating a measurement might be handy. example: 6045r8,100 traverses a closed octagon.
You may have noticed that the quadrant entries are not limited to 90 degrees.
Can you think of a reason to allow that?
Fast entry of quadrant bearings
> You may have noticed that the quadrant entries are not limited to 90 degrees.
> Can you think of a reason to allow that?
No practical reason comes to mind. What am I overlooking?
Fast entry of quadrant bearings
South Azimuths, CW or CCW
Fast entry of quadrant bearings
> South Azimuths, CW or CCW
Or perhaps, East Azimuths (as in math or CAD)?
Fast entry of quadrant bearings
Azimuth of the Sun is usually South based. Bearings are either from North or South.
While possible in the old LLCOGO program using other angle input forms, I fail to see an application for east based.
Example 1*2+90.3020
Recall direction from point 1 to 2 and add 90d30m20s