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TmfViewer and resample

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Messages
113
What does mean the items in View menu of TmfViewer?
"Show Missing data mask" and "Show water mask"

I have never used this option but now I did.

I used this option with a scenery for one town, which inf configuration was LOD5,15 and had two sources. Tiff and Bmp:

http://i50.tinypic.com/vzuhbp.jpg

Now I tried the same file with changed configuration of the inf file. I replaced LOD = 5,15 for LOD = 14,15 and this is the result.

http://i47.tinypic.com/27zw9ja.jpg
 
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Hi,

Are these multiple BGL files you are loading? It seems they overlap a bit and some BGL files have some areas with no data for a certain LOD. So these are coloured (in the other BGL that area is filled it seems).

The lower your LOD value, the bigger the LOD squares are. So you are more likely to have missing data, since your photo does not fill the entire square.
 
Thanks. Yes they are multiple bgls. When I opened the lower resolution scenery in TMF Viewer (LOd 5,15) I have seen a border with big squares which looks like pixels. It looks like lower LOD. Strange that I did not noticed this border before, because I worked some time with this scenery. Probably when I compiled this scenery by maps2bgl, there was low resolution border included. I see no sense of it. The second scenery in high resolution has no border. But I used LOD 14,15. When I was in scenery, I see no spaces. I did flied the scenery and never saw any missing data.
 
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Missing just means the entire lod square is not filled. The lower your lowest lod, the bigger the area you need to cover to fill out completely.

Send from my phone using Tapatalk, so excuse the short sentences and possible typos
 
One more question to the mask.

I used 70% quality compression during building the bgl files. Then I decided to correct contrast of the source images (I applied Black: 0 , Gama: 0,87 , White: 212). I again did the same 70% quality compression. In the resulting bgl files, there were white places that the resample converter deleted and (I think) it placed some mask there. I am not 100% sure. But I think there is mask or something.

So this is detail of building with a white roof:
http://i46.tinypic.com/334ndax.jpg

I thought it is some bug, but is it some mask or what? It looks that now the file has significantly bigger size :-( While when I had 70% quality with the original imagery, the size declined significantly.
 
Hi,

Do you have the no data set to white in your INF file? The no data value is used to remove pixels with that colour. It is often used to remove black or white edges from imagery.
 
Hi,

Bigger. Since the white pixels will be included in your imagery. No they are removed (so you get gaps there).
 
I flied it but there are dark or colored dots just in the place of gaps - there is default terrain under scenery. Should I create white foundation under the scenery? And how? I am not sure if this has some solution because I have many of the tiles.
 
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Why not change your no data value? It seems you don't want white to be no data.

Send from my phone using Tapatalk, so excuse the short sentences and possible typos
 
I removed it completely and it seems that the scenery is less size. Also the compilation time is shorter.

75% quality. Size before: 195MB for LODs 13-15. Size after: 176MB.
 
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