Help! what is it with this landmass?

[lordofwings]

I am trying to redesign part of an archipelago. My first step was to create a rectangular area that enclosed 6 islands. I made this polygon as "Exclude All Terrain"

Then I copied the same polygon (same coordinates) and placed it second as "Hydro Ocean Perennial".

Then I made polygon holes for each island.

I am seeing some progress (finally) but at the moment I am worried about this HUGE landmass that appeared OUTSIDE the bounds of the biggest Exclude All polygon. How is that? I have not created any object outside my exclude polygon.

Attached is an image with a top down view showing my islands (some of which are not quite showing yet), the bounding "exclude" polygon and the horrible landmass that appeared out of the nothing.

1. How do I get rid of that landmass? And...
2. how do I edit a polygon to adjust the points? can't seem to find any such option in FSX_KML or GE
3. Why are islands 2 and 7 showing water inside even though that polygon (last in the polygon list) was marked as Tropical Forest?

 

[lordofwings]

Very strange things are happening after this post:

1. I defined a GRASS landclass poly which is just a small polygon within the island but when I view the GRASS polygons in FSX_KML their shape is not as shown in GE but totally exploded to nearly cover the whole island. I believe this is a bug.

2. I reorganized my KML in a different folder structure, the first for the excludes and then a series of folders, each one for a single island. I changed the island fill poly from dry tropical wood to a different type of tropical forest but now all islands that appeared in the snapshot of the previous post are GONE. I can only see their contours (shorelines?) but what was there is gone even though they are defined in the proper order.

3. There is a road path I defined in the "Saboga Island". It still shows in GE but the actual entry does not appear anywhere anymore. Very puzzling.

I have defined everything in the right order but I find the behaviour rather erratical.

Anybody with knowledge out there that can take a look at my KML and verify this?

 

[MatthewS]

1. How do I get rid of that landmass? And...
2. how do I edit a polygon to adjust the points? can't seem to find any such option in FSX_KML or GE
3. Why are islands 2 and 7 showing water inside even though that polygon (last in the polygon list) was marked as Tropical Forest?

1. FSX will exclude the QMID 11 cells that are touched by your exclusion polygon. So when you put your water back in you need to cover any QMID 11 cell that was touched by your exclusion polygon.

http://www.fsdeveloper.com/forum/showthread.php?t=3749&highlight=qmid

2. Click the vertices tab (bottom of screen) and then edit button

 

[lordofwings]

OK, Thanks to the great help and explanations of Carlos Maida and Matthew S I am beginning to comprehend how I should work in order to avoid the land walls.

Thanks for the link to the other thread, I also found this other one useful in that it mentions that the polygon holes must be in the same folder as the water (and I must add exclusion) polygons. That explains another one of my problems.

With this I hope to improve on the scenery of my home country which is just plain horrible in FSX and FS9.

And Matthew, thank you for this fantastic tool, one of the best I have found out there! and believe me I tried a LOT of them. It has some shortcomings (mentioned in the bug and suggestions) but it has not let me down. It is intuitive in its use and gets things DONE.