removing seamlines along edges of air photos?
Mark Volz <[email protected]> Fri, 6 Dec 2019 16:21:31 +0000
| Newsgroups | gmane.comp.gis.mapserver.user |
|---|---|
| Message-ID | <[email protected]> |
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Hello,
I have a single mapfile that contains two layers. One layer includes count=
y wide aerial photography at medium resolution. The other layer contains h=
igh resolution aerial photography for select cities in my county. I would =
like to combine the two layers so that I can have a single "maximum resolut=
ion available" image service. Unfortunately, the high resolution air photo=
s have a ~30 foot seamline at the edge of the air photos. The seamline is =
not all the same exact color so I cannot set a transparency.
Question:
Would specifying an extent on the high resolution imagery allow me to cut o=
ff the edge of the imagery (thus removing the area where there is a seamlin=
e)? Also, I am referencing all of the high resolution images through a til=
e index so is there a way to also specify extents within the tile index, or=
would I need to separate each of the cities into different layers?
Thanks!
Mark Volz
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<p class=3D"MsoNormal">Hello,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">I have a single mapfile that contains two layers.&nb=
sp; One layer includes county wide aerial photography at medium resolution.=
The other layer contains high resolution aerial photography for sele=
ct cities in my county. I would like to combine
the two layers so that I can have a single “maximum resolution avail=
able” image service. Unfortunately, the high resolution air pho=
tos have a ~30 foot seamline at the edge of the air photos. The seaml=
ine is not all the same exact color so I cannot set a
transparency.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Question:<o:p></o:p></p>
<p class=3D"MsoNormal">Would specifying an extent on the high resolution im=
agery allow me to cut off the edge of the imagery (thus removing the area w=
here there is a seamline)? Also, I am referencing all of the high res=
olution images through a tile index so
is there a way to also specify extents within the tile index, or would I n=
eed to separate each of the cities into different layers?<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Thanks!<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Mark Volz<o:p></o:p></p>
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