Exclusion polygons

[GHD]

I have successfully used BLN2SHP/SHP2VEC to create flattens but I am having no succes in creating excludes. The files compile correctly but the trees are still present in FSX.

The screenshot shows custom autogen trees (.agn files) which I am attempting to remove with an exclude polygon as shown.

The bln file is:

10,0
1.25235375859464,52.71066349760610,32.900000
1.25255209129871,52.71121642285200,32.900000
1.24621239629261,52.71289991515630,32.900000
1.24508672703970,52.71439345406010,32.900000
1.24284747898853,52.71336738565570,32.900000
1.24431108478640,52.71202210962100,32.900000
1.24643241171790,52.71172361710740,32.900000
1.24686489579382,52.71102957927090,32.900000
1.25116549105397,52.71071663510840,32.900000
1.25235375859464,52.71066349760610,32.900000


The generated xml is:

<?xml version="1.0"?>
<metadata xml:lang="en">
<FlightSim>
<Geometry clipLevel="11"></Geometry>
<AttributeSet>
<AttributeBlock name="Exclusion Polygons" guid="{AC39CDCB-DB78-4628-9A7C-051DA7AC864A}">
<Field name="Uuid" type="GUID" />
</AttributeBlock>
<AttributeBlock name="Texture" guid="{1B6A15BB-05FB-4401-A8D1-BB520E84904C}">
<Field name="Guid" type="GUID" />
</AttributeBlock>
</AttributeSet>
</FlightSim>
</metadata>

I can't find these GUIDs in the VectorShapePropertiesGuids.txt file.

I would be grateful for any advice.

George

 

[DougMatthews]

I have successfully used BLN2SHP/SHP2VEC to create flattens but I am having no succes in creating excludes. The files compile correctly but the trees are still present in FSX.

The Exclusions are for vector types. I don't believe they work for autogen.

Try using the appropriate GUID listed below in the GUID field of your FLATTEN (a somewhat misleading name) SHAPEFILE (not xml file).

{6c0c6528-5cf1-483a-a586-2c905cf2757e} ExcludeAG
{47d48287-3ade-4fc5-8bec-b6b36901e612} Flatten
{5a7f944c-3d79-4e0c-82f5-04844e5dc653} Flatten + MaskClassMap
{1f2baab1-4132-416e-8f6f-28abe79cd60b} MaskClassMap
{46bfb3bd-ce68-418e-8112-feba17428ace} Flatten + MaskClassMap + ExcludeAG
{18580a63-fc8f-4a02-a622-8a1e073e627b} Flatten + ExcludeAG
{594e70c8-06a5-4e3f-be6e-4dbf50b49d11} MaskClassMap + ExcludeAG

-Doug

 

[Jose_Maia]

Or try a .xml style exclusion, compiled with BGLComp, using

excludeAllObjects = "TRUE"

José Maia

 

[DougMatthews]

Or try a .xml style exclusion, compiled with BGLComp, using

excludeAllObjects = "TRUE"

José Maia

That would work, assuming he is not trying to surgically replace parts of an airport. He is already creating the flatten. It would seem, in this case, the best thing to do would be to "turn on" the exclusion-ness of the polygon he is already creating.

-Doug

 

[GHD]

No, the xml exclude doesn't exclude autogen, only airport facilities. This is not a default airport, all I wish to do is erase some autogen trees.

Unfortunately BLN2SHP doesn't have a flatten/exclude construct so I will need to write a program to create an shp file. Will the dbf file be ok as it is?

George

 

[Jose_Maia]

No, the xml exclude doesn't exclude autogen, only airport facilities.

Are you sure about that?

I know that my english is very poor, but it´s not what i understand here:

Note that if excludeAllObjects is set to true all scenery objects will be excluded, whether specifically placed or created by Autogen.
(in the bgl compiler.html/FSX SDK)

José Maia

 

[GHD]

Hi José,

Your English is excellent

This is what I tried before using BLN2SHL/SHP2VEC:

<ExclusionRectangle
latitudeMinimum="52.7106820"
latitudeMaximum=" 52.7116362"
longitudeMinimum="1.2503477"
longitudeMaximum="1.2526781"
excludeAllObjects = "TRUE"
/>

and this is what I see in FSX.



You can see that the user aircraft and the trees are inside the rectangle, but the trees are still visible.

George

 

[DougMatthews]

No, the xml exclude doesn't exclude autogen, only airport facilities. This is not a default airport, all I wish to do is erase some autogen trees.

Unfortunately BLN2SHP doesn't have a flatten/exclude construct so I will need to write a program to create an shp file. Will the dbf file be ok as it is?

George

Use BLN2SHP to create a flatten. Then edit the .dbf file and change the value in the GUID field to be

{18580a63-fc8f-4a02-a622-8a1e073e627b}

Compile the updated Shapefile using Shp2Vec and you're done.

-Doug

 

[GHD]

Thanks Doug.I don't have Access so I created the flatten and edited the dbf using Notepad, the exclude still didn't work. Obviously I had the agn file so I edited this and moved the offending vegetation rectangle. The results are shown below.

I would like to know why neither the xml exclude nor the flatten exclude worked.

George

agn before edit:



agn after edit:



Top-down



Spot:

 

[PakMac]

I don't have Access so I created the flatten and edited the dbf using Notepad.

There is a free DB editor available here http://www.pablosoftwaresolutions.com

 

[GHD]

Thanks PakMac, that will be extremely useful.



José

Note that if excludeAllObjects is set to true all scenery objects will be excluded, whether specifically placed or created by Autogen.
(in the bgl compiler.html/FSX SDK)

I think they lied

George

 

[jack_h]

Excludes & Flattens

Hello George, I have been reading your posts on Flattens and Excludes.
I too have created them both with BTNM and Shp2Vec and have the bgls but no matter where I put them EGNT still shows 82.2mtrs. and the is no exclusion. Where did you put your Flatten bgl to get it to work?. I think you might be right with your last post!

Any help appreciated,

Jack

 

[GHD]

Hi Jack,

I have had no problems with flattens only excludes (perhaps it is just custom autogen which is not excluded?). I am modifying the afcads for the UK2000 airports and the main problem is with ground textures. Here is my EGNT, I set the height in the bln file to 81.0585938 and this is what shows in the screenshot as indicated by the ground height in Generate Helipad.

George

 

[jack_h]

Thanks for the info George.

I have some UK2000, including Part 8 and my problem looks the same as your's, aprons and taxyways not showing over the green base.
UK VFR is ok and with APX47120 removed, Part 8 EGNT, with or without AFCAD it's just the runway and buildings.
I notice that without UK VFR and APX47120 , the default base is showing and is 82.2 mtrs all over. Perhaps if the default base could be excluded or removed things might improve?

Good luck with your task.

Jack

 

[GHD]

Hi Jack,

I have found that you need to create a flatten at the height of the UK 2000 runway (probably best found in FS9) and place it below 0501/0601 base in the library priority list shown in Settings. You will probably find that the ground textures will continue to flicker due to way they have been programmed.

George

 

[GHD]

Use BLN2SHP to create a flatten. Then edit the .dbf file and change the value in the GUID field to be

{18580a63-fc8f-4a02-a622-8a1e073e627b}

Compile the updated Shapefile using Shp2Vec and you're done.

-Doug

Hi Doug,

A BLN2SHP flatten already uses:

{46BFB3BD-CE68-418E-8112-FEBA17428ACE}

as the GUID in the .dbf file.

The VectorShapePropertiesGuids.txt has:

Airport_Backgrounds_Flatten_MaskClassMap_ExcludeAutoGen = { 0x46BFB3BD, 0xCE68, 0x418E, { 0x81, 0x12, 0xFE, 0xBA, 0x17, 0x42, 0x8A, 0xCE, } };

Does this mean that it should exclude autogen? In my case it doesn't seem to.

George

 

[tgibson]

Hi,

You say this is custom autogen. I'm sure you're not, but is the .agn file in the same folder as the exclude rectangle? This won't work.

Hope this helps,

 

[GHD]

Hi Tom,

The agn files are in the texture folder together with photo-scenery bmp files. The cvx file is at a lower position in the Settings/Scenery library priority list.

George

 

[DougMatthews]

Hi Tom,

The agn files are in the texture folder together with photo-scenery bmp files. The cvx file is at a lower position in the Settings/Scenery library priority list.

George

I want to be sure I understand exactly what you are doing. It sounds like you have annotated some imagery AND you have created an airport background you expect to exclude your annotations (to the extent they overlap). Is this correct?

Will you please forward a simple example exhibiting the undesirable behavior?

[And yes... we lied. You cannot exclude autogen using ExclusionRectangles].

-Doug

 

[GHD]

Hi Doug,

The example is shown in the earlier screenshots. It is based upon photo scenery bmps with autogen added (the vegetation areas are shown in #9).

I created a simple xml airport to create a runway where you see the Trike sitting. I thought I could use an Exclusion or Flatten polygon to flatten the area and exclude the odd trees on the runway the flatten is fine but the exclusion didn't remove the trees. I finally moved the offending vegetation area and all is well.

And yes... we lied. You cannot exclude autogen using ExclusionRectangles.

And apparently nor with flattens, I did try your suggested GUID.

George


George