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Can water polygons and shorelines span across 'tiles'

jgarnold

jgarnold

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I want to change the coastline and add islands to an area which 'covers' two FSX 'tiles' - not sure if that is the correct terminology.

Is it ok to have a single water polygon and shoreline extending across the two 'tiles' OR should I created two separate water polygons and two separate shorelines.
Which works best and causes the least problems?

I am using SBX
 
Hello:

If the "tiles" you refer to are FS terrain grid QMID-11 sized "quads" as visualized when you turn on the LOD / QMID Grid feature in SBuilderX, then because FS "clips" CVX vector polygons for water at QMID-11 quad borders, you should make separate shore poly-line and hydro polygon objects, so that you will have (1) of each such object type ...for each of the adjacent QMID-11 Quads.

Hope this helps! :-)

GaryGB
 
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Thanks Gary

I really do not know what the association between LOD, QWID and the 'tile' size is and at present trying to work it out reading the Microsoft EDS SDK Terrain and Scenery document.

I created scenery file (bgl) using SBX and when I select LOD 9 in SBX it appears to show the boundary of the hydro poly I had to create after adding an exclude hydro poly. Originally I didn't create it large enough and so my water did not cover the area until I extended it to the bound of where the LOD 9 squares display in SBX.
I have attached a thumbnail from SBX and the red lines indicate LOD9 and I want to create a new coastline to the right of the existing one and so it 'outside' LOD9


lod9.jpg
 
Hi John:

LOD-9 is the same as QMID-11 (QMID=LOD+2).

[EDITED]

http://www.fsdeveloper.com/forum/threads/flattens.425495/page-2



The FS SDK Docs and threads here at FSDeveloper tend to make use of the term QMID more often when discussing the fact that the FS scenery rendering engine "clips" most CVX vector scenery content (such as shore lines and hydro polys) at QMID-11 sized "quad" borders.

And "quad" is more likely to be the term used in the context of such discussions rather than 'tile' or 'cell'.

[END_EDIT]


You may wish to review the info I previously posted to help identify the FS terrain scenery quad structure and file names of the default terrain BGL files in FS SDK TMFViewer for your current scenery project at Sechelt Water Aerodrome ...in this thread: :pushpin:

http://www.fsdeveloper.com/forum/th...rial-on-creating-airports.438455/#post-756081

...And this thread:

http://www.fsdeveloper.com/forum/th...y-setting-cause-problems-with-terrain.438458/


FYI: When you de-compile the default CVX vector BGLs cited in the thread linked above, then export them as ESRI SHP files using CVXExtractor, you can "Append" those SHP files into SBuilderX to make precise and specific excludes for the default CVX vector objects, then replace them with your custom CVX vector shorelines and hydro polys. ;)

[EDITED]

PS: To "Exclude and Replace" ALL CVX vector scenery content within entire QMID-11 sized quads is the most commonly utilized approach to customizing shorelines and water bodies due to the the greater likelihood of successful display in place of default or other 3rd party scenery content; however that approach does sometimes require a greater amount of work.

http://www.fsdeveloper.com/forum/threads/sbuilderx-exclusion-question.432328/

http://www.fsdeveloper.com/forum/threads/adjusting-only-part-of-island-coastline.434472/


Alternatively, one can use specific excludes in the form of small triangles that intersect CVX vector scenery objects, and replace default CVX vector scenery objects with ex: copies of that original (excluded) scenery content derived from 'Appended' SHP files exported from CVXExtractor (but in a substantially-modified form) ...to create ones custom scenery that is aligned to the real world aerial imagery.


However, one may be compelled to still utilize the "Exclude and Replace" ALL CVX vector scenery content within entire QMID-11 sized quads approach, because there may be GPS Hydro Polygons that cannot otherwise be excluded by local specific excludes in the form of small triangles that intersect CVX vector scenery objects due to that option not having been included in the FSX SDK SHP2VEC compiler GUID processing feature set by MS Game Studios / ACES.

http://www.fsdeveloper.com/forum/threads/how-to-find-out-and-exclude-default-polygons-used.277450/

http://www.fsdeveloper.com/forum/threads/replacing-an-island.16237/


Thus, one may have to use a QMID-11 quad-sized "Park Polygon" method to perform a successful "Exclude and Replace" of ALL CVX vector scenery content within your project area where GPS polygon vector GUID attributes are seen in FS SDK TMFViewer as described above in the linked thread.


BTW: To more directly reply to your query in the OP of this thread about how to implement replacement of default CVX vector objects with ones custom CVX vector content:

If one already has a large 1-piece shoreline poly-line and hydro polygon, one can use the tools in SBuilderX to 'slice' and modify it so that it can still be used, but as 2 separate pairs of objects: (1) shoreline and (1) hydro polygon each ...with each pair in 2 adjacent QMID-11 quads:

http://www.ptsim.com/forum/viewtopic.php?p=5785&sid=1f45de417f712cfa137705b2ca803464

http://www.ptsim.com/sbuilderx/videos/normans.swf


NOTE: The above linked "ShockWave Flash" video, when double-clicked, should play automatically via the Adobe Flash plugin for most modern web browsers; if it does not, it can be played by Windows' own default 'Media Player'.

MS Edge and Chrome reportedly can play .SWF ShockWave Flash files, but this may be disabled by security apps.

How to play a SWF ('Adobe ShockWave Flash') file in Windows Media Player

Change the default program for opening a .SWF file to Windows Media Player by:

1.) Right-click the .SWF file > Properties > General > Change > Windows Media Player.

2.) After this 'Windows file association' is done, Double-click .SWF files to play them in Windows Media Player.

[END_EDIT]


I'm traveling right now, and I'm limited to use of an I-Pad to post, but I hope this helps a bit more for this particular inquiry.:)

GaryGB
 
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