Simviation Forum - AFCAD Question

Aug 13^th, 2007 at 6:06am

ivormills Offline
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South West England

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I have used afcad for some time with great results, and have recently been working on 'new' airports. After positioning runways and taxiways, I have laid a 'grass' polygon to enclose the whole area and then drawn apron polygons on top of this.
I now find that the apron polygons do not show up. Is this because afcad does not support layers or is it something else I have missed?
If it is the former, can I flatten my airport area and add a standard fs ground texture over the area and then in afcad just add my apron polygons and if so, what is the best way to do this?

Many thanks

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Reply #1 - Aug 13^th, 2007 at 9:47am

dave3cu Offline
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I've messed with that question for some time with varying results. Think I may have stumbled onto the key...

You must pick the surface for your 'apron' apron from lower (farther down) on the surface list than the one your using for the 'airport poly' apron surface.........for example, you can have asphalt on grass but not concrete on grass......at least that's my conclusion.. Wink

Dave

At that time [1909] the chief engineer was almost always the chief test pilot as well. That had the fortunate result of eliminating poor engineering early in aviation. Igor Sikorsky

I intend to live forever....so far, so good. Steven Wright

You know....you can just rip up a to-do list.

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Reply #2 - Aug 13^th, 2007 at 10:07am

ivormills Offline
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South West England

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dave3cu wrote on Aug 13^th, 2007 at 9:47am:

I've messed with that question for some time with varying results. Think I finally found the key...

You must pick the texture for your 'apron' apron from lower (farther down) on the texture list than the one your using for the 'airport poly' apron texture.........in other words, aprons are 'layered' in reverse order of their position in the texture selection list......at least that's my conclusion.. Wink

Dave

Very interesting answer Dave.

I have been using texture 'Turf' for my polygon and 'asphalt' for my aprons, asphalt is higher in the texture list than turf.
So, accordingly then if I pick 'grass' for my background polygon which is second in the texture list and asphalt for my apron polygon which is fifth in the texture list, have I got that the right way round? Roll Eyes

Many thanks

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Reply #3 - Aug 13^th, 2007 at 10:14am

dave3cu Offline
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Procrastinate now, don't
put it off.
3CU, Northern Wisconsin, USA

Gender:
Posts: 3077

Yes, Ivormiils, that should work.

Dave

I've modified my 1st reply to make it a little clearer........I think...

At that time [1909] the chief engineer was almost always the chief test pilot as well. That had the fortunate result of eliminating poor engineering early in aviation. Igor Sikorsky

I intend to live forever....so far, so good. Steven Wright

You know....you can just rip up a to-do list.

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Reply #4 - Aug 13^th, 2007 at 10:24am