Hey there Michael, fantastic job on the new GIS Manager. Looks great so far. I have a question about the functionality of the d.rast button. In the menu options there is a button that says 'Raster to drape over 1st map'. This seems like an approximate d.his utility. However I don't quite understand how it works. Say if I have map1 (air photo) under 'Raster name' and map2 (DEM) under the second button, then when I display the image I get what I think is my colored DEM with shading from my black and white air photo. This then gets covered up by map1 (the monitor displays two images overlain on top of each other).
Does my explanation make sense? Is that second raster not supposed to display? How does this button differ from d.his?
Cheers,
Ian
PS using mac 10.3.9
>
What happens if a big asteroid hits Earth? Judging from realistic simulations involving a sledge hammer and a common laboratory frog, we can assume it will be pretty bad.
- Dave Barry
-------------------------------------------------------------
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Ian,
You are correct that a version of d.his is called when you drape or fuse
maps.
I just checked this with the version of Lorenzo's binaries I downloaded
today, with the new GIS Manager installed.
It seemed to work exactly as you'd expect it to work. I added a dem to the
1st raster map entry field and an ASTER image to the second. I got the ASTER
shaded by topography. I reversed them and got an image that looked pretty
similar. Do you have another layer in the GIS Manager that is overwriting
the first one?
I have the overlay checkbox selected by default in all raster layers. But if
you turn it off, a layer will overwrite all preceeding layers.
Michael
__________________________________________
Michael Barton, Professor of Anthropology
School of Human Evolution and Social Change
Arizona State University
Tempe, AZ 85287-2402
phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton
From: Ian MacMillan <ian_macmillan@umail.ucsb.edu>
Date: Tue, 20 Sep 2005 17:06:10 -0700
To: GRASS Users List <grasslist@baylor.edu>
Subject: [GRASSLIST:8365] Re: New GIS Manager version
Hey there Michael, fantastic job on the new GIS Manager. Looks great
so far. I have a question about the functionality of the d.rast
button. In the menu options there is a button that says 'Raster to
drape over 1st map'. This seems like an approximate d.his utility.
However I don't quite understand how it works. Say if I have map1 (air
photo) under 'Raster name' and map2 (DEM) under the second button, then
when I display the image I get what I think is my colored DEM with
shading from my black and white air photo. This then gets covered up
by map1 (the monitor displays two images overlain on top of each
other).
Does my explanation make sense? Is that second raster not supposed to
display? How does this button differ from d.his?
Cheers,
Ian
PS using mac 10.3.9
What happens if a big asteroid hits Earth? Judging from realistic
simulations involving a sledge hammer and a common laboratory frog, we
can assume it will be pretty bad.
- Dave Barry
-------------------------------------------------------------
This message has been scanned by Postini anti-virus software.
Michael, I have only one raster in the GIS manager when I do this. If I put a grayscale shaded relief map in the first, and an air photo in the second, then I get an 'his' display that is later covered by just the first map. I have attached a small jpg that shows what I am talking about. This screen shot shows my 'his' image getting covered up by the shaded relief map (the shaded relief map does not extend all the way to the outer bottom right edge). For some reason it looks like I am getting something like
d.his h_map=air_photo i_map=shaded_relief
d.rast shaded_relief -o
rather than just the d.his command when I hit the display button.
I am also using the binaries from Lorenzo (Sept. 17 - source, Sept. 19 - osx). That is weird that you can't reproduce this.
-Ian
(attachments)
Ian,
Looking at your jpg, I think it is actually working OK. Have you tried doing
the same thing with d.his to compare?
I'm looking especially at the crater in the upper center of the aerial
photo. It has the grey shades of the aerial, but seems to have the relief of
the underlying map. The problem is that it is very difficult to see with
grey on grey. Try it with a color image draped on a relief map.
Michael
__________________________________________
Michael Barton, Professor of Anthropology
School of Human Evolution and Social Change
Arizona State University
Tempe, AZ 85287-2402
phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton
From: Ian MacMillan <ian_macmillan@umail.ucsb.edu>
Date: Wed, 21 Sep 2005 07:09:06 -0700
To: Michael Barton <michael.barton@asu.edu>
Cc: GRASS Users List <grasslist@baylor.edu>
Subject: Re: [GRASSLIST:8365] Re: New GIS Manager version
Michael, I have only one raster in the GIS manager when I do this. If
I put a grayscale shaded relief map in the first, and an air photo in
the second, then I get an 'his' display that is later covered by just
the first map. I have attached a small jpg that shows what I am
talking about. This screen shot shows my 'his' image getting covered
up by the shaded relief map (the shaded relief map does not extend all
the way to the outer bottom right edge). For some reason it looks like
I am getting something like
d.his h_map=air_photo i_map=shaded_relief
d.rast shaded_relief -o
rather than just the d.his command when I hit the display button.
I am also using the binaries from Lorenzo (Sept. 17 - source, Sept. 19
- osx). That is weird that you can't reproduce this.
-Ian
On Sep 20, 2005, at 11:40 PM, Michael Barton wrote:
Ian,
You are correct that a version of d.his is called when you drape or
fuse
maps.
I just checked this with the version of Lorenzo's binaries I downloaded
today, with the new GIS Manager installed.
It seemed to work exactly as you'd expect it to work. I added a dem to
the
1st raster map entry field and an ASTER image to the second. I got the
ASTER
shaded by topography. I reversed them and got an image that looked
pretty
similar. Do you have another layer in the GIS Manager that is
overwriting
the first one?
I have the overlay checkbox selected by default in all raster layers.
But if
you turn it off, a layer will overwrite all preceeding layers.
Michael
__________________________________________
Michael Barton, Professor of Anthropology
School of Human Evolution and Social Change
Arizona State University
Tempe, AZ 85287-2402
phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton
From: Ian MacMillan <ian_macmillan@umail.ucsb.edu>
Date: Tue, 20 Sep 2005 17:06:10 -0700
To: GRASS Users List <grasslist@baylor.edu>
Subject: [GRASSLIST:8365] Re: New GIS Manager version
Hey there Michael, fantastic job on the new GIS Manager. Looks great
so far. I have a question about the functionality of the d.rast
button. In the menu options there is a button that says 'Raster to
drape over 1st map'. This seems like an approximate d.his utility.
However I don't quite understand how it works. Say if I have map1
(air
photo) under 'Raster name' and map2 (DEM) under the second button,
then
when I display the image I get what I think is my colored DEM with
shading from my black and white air photo. This then gets covered up
by map1 (the monitor displays two images overlain on top of each
other).
Does my explanation make sense? Is that second raster not supposed to
display? How does this button differ from d.his?
Cheers,
Ian
PS using mac 10.3.9
What happens if a big asteroid hits Earth? Judging from realistic
simulations involving a sledge hammer and a common laboratory frog, we
can assume it will be pretty bad.
- Dave Barry
-------------------------------------------------------------
This message has been scanned by Postini anti-virus software.
What happens if a big asteroid hits Earth? Judging from realistic
simulations involving a sledge hammer and a common laboratory frog, we
can assume it will be pretty bad.
- Dave Barry
-------------------------------------------------------------
This message has been scanned by Postini anti-virus software.
Michael, I just looked at this again to confirm (including with some color images), but it turns out my description seems to be right on (at least on my machine). The jpeg I sent is showing the airphoto draped on the shaded image being covered up by the shaded image. It is a screenshot taken as the display is in the middle of drawing the second image (sorry if this was confusing).
So the upper light gray image is the shaded relief map, the middle two thirds is the air photo draped on top of the shaded relief map (but getting covered up by the light grey image), and the outer right bottom edge is the air photo in an area beyond the extent of the shaded relief map. The middle two thirds I think is the intended result, but it gets covered up as the monitor draws over it. You can't reproduce this on your end? I am using 6.1cvs from Sept. 17 on OSX 10.3.9.
-Ian
On Oct 3, 2005, at 11:15 PM, Michael Barton wrote:
Ian,
Looking at your jpg, I think it is actually working OK. Have you tried doing
the same thing with d.his to compare?
I'm looking especially at the crater in the upper center of the aerial
photo. It has the grey shades of the aerial, but seems to have the relief of
the underlying map. The problem is that it is very difficult to see with
grey on grey. Try it with a color image draped on a relief map.
Michael
__________________________________________
Michael Barton, Professor of Anthropology
School of Human Evolution and Social Change
Arizona State University
Tempe, AZ 85287-2402
phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton
From: Ian MacMillan <ian_macmillan@umail.ucsb.edu>
Date: Wed, 21 Sep 2005 07:09:06 -0700
To: Michael Barton <michael.barton@asu.edu>
Cc: GRASS Users List <grasslist@baylor.edu>
Subject: Re: [GRASSLIST:8365] Re: New GIS Manager version
Michael, I have only one raster in the GIS manager when I do this. If
I put a grayscale shaded relief map in the first, and an air photo in
the second, then I get an 'his' display that is later covered by just
the first map. I have attached a small jpg that shows what I am
talking about. This screen shot shows my 'his' image getting covered
up by the shaded relief map (the shaded relief map does not extend all
the way to the outer bottom right edge). For some reason it looks like
I am getting something like
d.his h_map=air_photo i_map=shaded_relief
d.rast shaded_relief -o
rather than just the d.his command when I hit the display button.
I am also using the binaries from Lorenzo (Sept. 17 - source, Sept. 19
- osx). That is weird that you can't reproduce this.
-Ian
On Sep 20, 2005, at 11:40 PM, Michael Barton wrote:
Ian,
You are correct that a version of d.his is called when you drape or
fuse
maps.
I just checked this with the version of Lorenzo's binaries I downloaded
today, with the new GIS Manager installed.
It seemed to work exactly as you'd expect it to work. I added a dem to
the
1st raster map entry field and an ASTER image to the second. I got the
ASTER
shaded by topography. I reversed them and got an image that looked
pretty
similar. Do you have another layer in the GIS Manager that is
overwriting
the first one?
I have the overlay checkbox selected by default in all raster layers.
But if
you turn it off, a layer will overwrite all preceeding layers.
Michael
__________________________________________
Michael Barton, Professor of Anthropology
School of Human Evolution and Social Change
Arizona State University
Tempe, AZ 85287-2402
phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton
From: Ian MacMillan <ian_macmillan@umail.ucsb.edu>
Date: Tue, 20 Sep 2005 17:06:10 -0700
To: GRASS Users List <grasslist@baylor.edu>
Subject: [GRASSLIST:8365] Re: New GIS Manager version
Hey there Michael, fantastic job on the new GIS Manager. Looks great
so far. I have a question about the functionality of the d.rast
button. In the menu options there is a button that says 'Raster to
drape over 1st map'. This seems like an approximate d.his utility.
However I don't quite understand how it works. Say if I have map1
(air
photo) under 'Raster name' and map2 (DEM) under the second button,
then
when I display the image I get what I think is my colored DEM with
shading from my black and white air photo. This then gets covered up
by map1 (the monitor displays two images overlain on top of each
other).
Does my explanation make sense? Is that second raster not supposed to
display? How does this button differ from d.his?
Cheers,
Ian
PS using mac 10.3.9
What happens if a big asteroid hits Earth? Judging from realistic
simulations involving a sledge hammer and a common laboratory frog, we
can assume it will be pretty bad.
- Dave Barry
-------------------------------------------------------------
This message has been scanned by Postini anti-virus software.
What happens if a big asteroid hits Earth? Judging from realistic
simulations involving a sledge hammer and a common laboratory frog, we
can assume it will be pretty bad.
- Dave Barry
-------------------------------------------------------------
This message has been scanned by Postini anti-virus software.
>
What happens if a big asteroid hits Earth? Judging from realistic simulations involving a sledge hammer and a common laboratory frog, we can assume it will be pretty bad.
- Dave Barry
-------------------------------------------------------------
This message has been scanned by Postini anti-virus software.