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Screen design units

Scott it uses meter offsets. These are calculated from the ARP using latitude and longitude values. I hope that makes sense
 
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Hi Folks

scruffyduck said:
Scott it uses meter offsets.
These are calculated from the ARP using latitude and longitude values.
Click to expand...

Jon -
Could you please expand on the above -
The ARP is stored as a lat lon value pair.

Are the other components stored as -
a) Lat Lon value pairs
b) Meter offsets from the ARP.

I'm hoping for option b) :)

Reason -
We've potentially got 5000 AFD's to place,
and would prefer to do it programatically.

Currently we intend generating these using Excel,
but would be interested in any alternative approach.

Many thanks
ATB
Paul
 
Could you please expand on the above -
The ARP is stored as a lat lon value pair.

Are the other components stored as -
a) Lat Lon value pairs
b) Meter offsets from the ARP.

I'm hoping for option b)
Click to expand...

Well as it happens they are interchangeable. ADE itself uses both. So to place an object in the display it will calculate the meter X,Y, offsets from the ARP. However, as you can probably figure out if you drag something you are actually changing those offsets so the reverse calculation is done since we have to tell the compiler the coordinates. Each object therefore holds it's coordinates as decimal lat/lon and it's x,y offsets in meters (+ve or -ve) from the ARP.

The formulae used are quite simple and seem pretty accurate over the sort of distances involved for a typical airport. There are also nav formuale to calculate the distance and bearing from one point to another.
 
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Jon thanks for the reply. I should have just opened NZWD and the answer would be obvious LOL!

scott s.
.
 
scott967 said:
Jon thanks for the reply. I should have just opened NZWD and the answer would be obvious LOL!

scott s.
.
Click to expand...


No worries - please ask :) sometimes answering questions is the only way to be sure that I understand how things actually work :D
 
Hi Folks

Cheers Jon.
Mat I get back to you at a later date
and pick your brains on this ?

Many thanks
ATB
Paul
 
BASys said:
Are the other components stored as -
a) Lat Lon value pairs
b) Meter offsets from the ARP.

I'm hoping for option b) :)

Reason -
We've potentially got 5000 AFD's to place,
and would prefer to do it programatically.
Click to expand...
Why should it matter what ADE does if you are going to create the AFD "programmatically"? All positions can be specified as lat/long, many as bias values.

George
 
Hi Folks

George -
Just exploring every avenue. :D

It'd be a case of generating template AFCADs for each of the model types,
(preferably with relative coords),
then porting these into Excel for the xml generation.

EDIT
Cheers Jon.
Have some other matters to address meantime.

HTH
ATB
Paul
 
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