Two questions

[Taxus]

Hello!
Been using WW for a couple of weeks now and its great.

Whats the difference between
JPL Global Landsat Mosaic (Visible Bands - Panshapened)
&
JPL Global Landsat Mosaic (Visible Bands)

It would be great if we could save our own "hotspots" in WW. Adding a small flag or a commentary. Is this possible?

Tkx

[Llynix]

Originally posted by Taxus@Dec 15 2004, 09:09 AM
It would be great if we could save our own "hotspots" in WW. Adding a small flag or a commentary. Is this possible?



Have you taken a stop by http://www.worldwindcentral.com yet?

[Lucian]

The Pansharpened layer(s) use the Landsat7 pachromatic band (15m per pixel) to
enhance the spatial detail of the normal (30m per pixel) bands. It does this by
mixing color info (hue and saturation) extracted from a color band combo and
brighness (value) from the Panchromatic band.
You will notice a slight change in color, and an improvement (one more level) in
resolution.
For WorldWind, the "normal" views do not make much sense. The server trafic
shows that the visual pansharpened is requested 15 times more often than
either "non-pan sharpened" data. Of course, WW starts with the pan visual,
one would expect more requests there. Yet the pan-pseudo layer is also 10
times more popular than the non pan layers.

Lucian

Originally posted by Taxus@Dec 15 2004, 07:09 AM
Hello!
Been using WW for a couple of weeks now and its great.

Whats the difference between
JPL Global Landsat Mosaic (Visible Bands - Panshapened)
&
JPL Global Landsat Mosaic (Visible Bands)

It would be great if we could save our own "hotspots" in WW. Adding a small flag or a commentary. Is this possible?

Tkx
Quoted post

[Thomas Risan]

Originally posted by Lucian@Dec 15 2004, 09:40 PM
The Pansharpened layer(s) use the Landsat7 pachromatic band (15m per pixel) to
enhance the spatial detail of the normal (30m per pixel) bands. It does this by
mixing color info (hue and saturation) extracted from a color band combo and
brighness (value) from the Panchromatic band.
You will notice a slight change in color, and an improvement (one more level) in
resolution.
For WorldWind, the "normal" views do not make much sense. The server trafic
shows that the visual pansharpened is requested 15 times more often than
either "non-pan sharpened" data. Of course, WW starts with the pan visual,
one would expect more requests there. Yet the pan-pseudo layer is also 10
times more popular than the non pan layers.

Lucian
Quoted post


Lucian, I would like to suggest to substitute the "normal" views with more scientific useful views. I'm thinking of infrared and panchromatic, which could be used to identify cultural heritage sites and similar.

My real dream would be to get access to all bands (by opening the cached tiles in other SW), but that is not possible due to the .dds format (I believe?). So access to some of the bands in WW would have been capital.

Kind regards,
Thomas Risan