[Geoserver-users] How to increase the Performance of image rendering

Hi Guys,

           I am using Geoserver 1.3 wcs version and mapbuilder to show
the images . I have a tiff image which is around 50mb and i have
created a coverage for that image and i am using wms to render the
image in the mapbuilder i am able to show the image in the mapbuilder
but it is very slow ..how can i increase the performance . Is there
any other way ...please help.

regards,
Vijay Akkineni.

Making the image smaller will speed things up.

Alex

On 3/3/06, Akkineni Vijay <akkineniv@...84...> wrote:

Hi Guys,

           I am using Geoserver 1.3 wcs version and mapbuilder to show
the images . I have a tiff image which is around 50mb and i have
created a coverage for that image and i am using wms to render the
image in the mapbuilder i am able to show the image in the mapbuilder
but it is very slow ..how can i increase the performance . Is there
any other way ...please help.

regards,
Vijay Akkineni.

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Well, you can resize it, and then write a world file for it that has
the upper left coordinates in it and then you can calculate the step
sizes in each direction with respect to the new width and height and
write them in the world file too. Then you just configure the image as
a "Worl Image" coverage. Anyway, that is how I have done it in the
past.

Alex

On 3/3/06, Akkineni Vijay <akkineniv@...84...> wrote:

How can i make the image smaller ..can u explain in detail ..

Thanks
Vijay.

On 3/3/06, Alexander Petkov <greenkov@...84...> wrote:
> Making the image smaller will speed things up.
>
> Alex
>
> On 3/3/06, Akkineni Vijay <akkineniv@...84...> wrote:
> > Hi Guys,
> >
> > I am using Geoserver 1.3 wcs version and mapbuilder to show
> > the images . I have a tiff image which is around 50mb and i have
> > created a coverage for that image and i am using wms to render the
> > image in the mapbuilder i am able to show the image in the mapbuilder
> > but it is very slow ..how can i increase the performance . Is there
> > any other way ...please help.
> >
> > regards,
> > Vijay Akkineni.
> >
> >
> > -------------------------------------------------------
> > This SF.Net email is sponsored by xPML, a groundbreaking scripting language
> > that extends applications into web and mobile media. Attend the live webcast
> > and join the prime developer group breaking into this new coding territory!
> > http://sel.as-us.falkag.net/sel?cmdlnk&kid0944&bid$1720&dat1642
> > _______________________________________________
> > Geoserver-users mailing list
> > Geoserver-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/geoserver-users
> >
>

Did you download the 1.3 rc 2 release, or are you working off of the subversion repository? There have been a lot of performance improvements I believe since the last release, so you could benefit just by working off of subversion, or waiting a few weeks till the next release.

best regards,

Chris

Akkineni Vijay wrote:

Hi Guys,

           I am using Geoserver 1.3 wcs version and mapbuilder to show
the images . I have a tiff image which is around 50mb and i have
created a coverage for that image and i am using wms to render the
image in the mapbuilder i am able to show the image in the mapbuilder
but it is very slow ..how can i increase the performance . Is there
any other way ...please help.

regards,
Vijay Akkineni.

-------------------------------------------------------
This SF.Net email is sponsored by xPML, a groundbreaking scripting language
that extends applications into web and mobile media. Attend the live webcast
and join the prime developer group breaking into this new coding territory!
http://sel.as-us.falkag.net/sel?cmd=lnk&kid0944&bid$1720&dat1642
_______________________________________________
Geoserver-users mailing list
Geoserver-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geoserver-users

--
Chris Holmes
The Open Planning Project
thoughts at: http://cholmes.wordpress.com

Hi Vijay, Hi all,
I have a couple of advices.
The version of the WCS you are using (0.2) was largely UNoptimized for
large data set, hence the only way you can improved speed is reduce
the size of the data set you want to show. However this is a real bad
solution, I know.

What I suggest is as follows:
instead of using version 0.2 of WCS do a fresh export from the svn
repository of the latest development version and build it. This
version contains many improvemenets as far as it concerns with
rendering large data sets, since it DOES support tiling and deferred
loading (which means I load only what you need when you really need
it) as well as minscale, max scale, which allows you to decide whether
your layer pops in depending on the level of zoom. In addition, and
this is true for EVERY map server I know you need to tile your tiff
image in order to speed things up. A simple way to do this is using
one of the gdal utilities you can freely download from the internet. I
have some utilites I wrote in Java but until next wednesday I won't be
able to share them.

I know I am being a bit fuzzy, but I have a live demostration next
wednesday, therefore I am a bit busy. After wednesday, if I don't get
fired (hopefully not) I will guide you through the process of setting
up the new WCS since I am intersting in having someone else testing
it. I can assure that performances, if the server is well tuned, are
very very good. I have been testing it myself with a 2GB geotiff for
the new marble next generation.

Hope this sounds good for you.

Simone.

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
Simone Giannecchini
Software Engineer
Freelance Consultant

http://simboss.wordpress.com/

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
On 3/3/06, Chris Holmes <cholmes@anonymised.com> wrote:

Did you download the 1.3 rc 2 release, or are you working off of the
subversion repository? There have been a lot of performance
improvements I believe since the last release, so you could benefit just
by working off of subversion, or waiting a few weeks till the next release.

best regards,

Chris

Akkineni Vijay wrote:
> Hi Guys,
>
> I am using Geoserver 1.3 wcs version and mapbuilder to show
> the images . I have a tiff image which is around 50mb and i have
> created a coverage for that image and i am using wms to render the
> image in the mapbuilder i am able to show the image in the mapbuilder
> but it is very slow ..how can i increase the performance . Is there
> any other way ...please help.
>
> regards,
> Vijay Akkineni.
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by xPML, a groundbreaking scripting language
> that extends applications into web and mobile media. Attend the live webcast
> and join the prime developer group breaking into this new coding territory!
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid0944&bid$1720&dat1642
> _______________________________________________
> Geoserver-users mailing list
> Geoserver-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/geoserver-users

--
Chris Holmes
The Open Planning Project
thoughts at: http://cholmes.wordpress.com

--

Hmm Simone your latest post makes me want to update my installation too.

I have been updating my SVN copy frequently, sounds like its time to
drop in a new geoserver.war

Alex

On 3/4/06, Simone Giannecchini <simboss1@...84...> wrote:

Hi Vijay, Hi all,
I have a couple of advices.
The version of the WCS you are using (0.2) was largely UNoptimized for
large data set, hence the only way you can improved speed is reduce
the size of the data set you want to show. However this is a real bad
solution, I know.

What I suggest is as follows:
instead of using version 0.2 of WCS do a fresh export from the svn
repository of the latest development version and build it. This
version contains many improvemenets as far as it concerns with
rendering large data sets, since it DOES support tiling and deferred
loading (which means I load only what you need when you really need
it) as well as minscale, max scale, which allows you to decide whether
your layer pops in depending on the level of zoom. In addition, and
this is true for EVERY map server I know you need to tile your tiff
image in order to speed things up. A simple way to do this is using
one of the gdal utilities you can freely download from the internet. I
have some utilites I wrote in Java but until next wednesday I won't be
able to share them.

I know I am being a bit fuzzy, but I have a live demostration next
wednesday, therefore I am a bit busy. After wednesday, if I don't get
fired (hopefully not) I will guide you through the process of setting
up the new WCS since I am intersting in having someone else testing
it. I can assure that performances, if the server is well tuned, are
very very good. I have been testing it myself with a 2GB geotiff for
the new marble next generation.

Hope this sounds good for you.

Simone.

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
Simone Giannecchini
Software Engineer
Freelance Consultant

http://simboss.wordpress.com/

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
On 3/3/06, Chris Holmes <cholmes@...1...> wrote:
> Did you download the 1.3 rc 2 release, or are you working off of the
> subversion repository? There have been a lot of performance
> improvements I believe since the last release, so you could benefit just
> by working off of subversion, or waiting a few weeks till the next release.
>
> best regards,
>
> Chris
>
> Akkineni Vijay wrote:
> > Hi Guys,
> >
> > I am using Geoserver 1.3 wcs version and mapbuilder to show
> > the images . I have a tiff image which is around 50mb and i have
> > created a coverage for that image and i am using wms to render the
> > image in the mapbuilder i am able to show the image in the mapbuilder
> > but it is very slow ..how can i increase the performance . Is there
> > any other way ...please help.
> >
> > regards,
> > Vijay Akkineni.
> >
> >
> > -------------------------------------------------------
> > This SF.Net email is sponsored by xPML, a groundbreaking scripting language
> > that extends applications into web and mobile media. Attend the live webcast
> > and join the prime developer group breaking into this new coding territory!
> > http://sel.as-us.falkag.net/sel?cmd=lnk&kid0944&bid$1720&dat1642
> > _______________________________________________
> > Geoserver-users mailing list
> > Geoserver-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/geoserver-users
>
> --
> Chris Holmes
> The Open Planning Project
> thoughts at: http://cholmes.wordpress.com
>
>
>

--

-------------------------------------------------------
This SF.Net email is sponsored by xPML, a groundbreaking scripting language
that extends applications into web and mobile media. Attend the live webcast
and join the prime developer group breaking into this new coding territory!
http://sel.as-us.falkag.net/sel?cmdlnk&kid0944&bid$1720&dat1642
_______________________________________________
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https://lists.sourceforge.net/lists/listinfo/geoserver-users

Hi All,

           Thanks for the reply .. i would get the latest wcs version
and try to test it .

Regards,
Vijay Akkineni.

On 3/4/06, Simone Giannecchini <simboss1@anonymised.com> wrote:

Hi Vijay, Hi all,
I have a couple of advices.
The version of the WCS you are using (0.2) was largely UNoptimized for
large data set, hence the only way you can improved speed is reduce
the size of the data set you want to show. However this is a real bad
solution, I know.

What I suggest is as follows:
instead of using version 0.2 of WCS do a fresh export from the svn
repository of the latest development version and build it. This
version contains many improvemenets as far as it concerns with
rendering large data sets, since it DOES support tiling and deferred
loading (which means I load only what you need when you really need
it) as well as minscale, max scale, which allows you to decide whether
your layer pops in depending on the level of zoom. In addition, and
this is true for EVERY map server I know you need to tile your tiff
image in order to speed things up. A simple way to do this is using
one of the gdal utilities you can freely download from the internet. I
have some utilites I wrote in Java but until next wednesday I won't be
able to share them.

I know I am being a bit fuzzy, but I have a live demostration next
wednesday, therefore I am a bit busy. After wednesday, if I don't get
fired (hopefully not) I will guide you through the process of setting
up the new WCS since I am intersting in having someone else testing
it. I can assure that performances, if the server is well tuned, are
very very good. I have been testing it myself with a 2GB geotiff for
the new marble next generation.

Hope this sounds good for you.

Simone.

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
Simone Giannecchini
Software Engineer
Freelance Consultant

http://simboss.wordpress.com/

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
On 3/3/06, Chris Holmes <cholmes@anonymised.com> wrote:
> Did you download the 1.3 rc 2 release, or are you working off of the
> subversion repository? There have been a lot of performance
> improvements I believe since the last release, so you could benefit just
> by working off of subversion, or waiting a few weeks till the next release.
>
> best regards,
>
> Chris
>
> Akkineni Vijay wrote:
> > Hi Guys,
> >
> > I am using Geoserver 1.3 wcs version and mapbuilder to show
> > the images . I have a tiff image which is around 50mb and i have
> > created a coverage for that image and i am using wms to render the
> > image in the mapbuilder i am able to show the image in the mapbuilder
> > but it is very slow ..how can i increase the performance . Is there
> > any other way ...please help.
> >
> > regards,
> > Vijay Akkineni.
> >
> >
> > -------------------------------------------------------
> > This SF.Net email is sponsored by xPML, a groundbreaking scripting language
> > that extends applications into web and mobile media. Attend the live webcast
> > and join the prime developer group breaking into this new coding territory!
> > http://sel.as-us.falkag.net/sel?cmd=lnk&kid0944&bid$1720&dat1642
> > _______________________________________________
> > Geoserver-users mailing list
> > Geoserver-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/geoserver-users
>
> --
> Chris Holmes
> The Open Planning Project
> thoughts at: http://cholmes.wordpress.com
>
>
>

--

Following the lists advice I have gotten the WCS branch from SVN,
configured and is working fine out of the box, all the default data
stores are displaying with the internal Mapbender.

But.... I cannot add a custom GeoTIFF. i add a new GeoTIFF type to
the Coverage Store, fill out the file name "file:data/coverages/mytif"
and click on 'Submit' it displays "null" on the left hand side and
stays on the page.

I have tried placing the TIF in both /cite...data/coverages and in the
/server.../data/coverages directories to no avail. (which one does the
IDE debug use?) All the normal tools I use can display the TIF
normally (Mapserver, OpenEv) and gdalinfo reports a CRS and it looks
fine.

Any ideas? I am also looking for the source code to the SDE Plugin and
did not see it in SVN, is it closed source

But.... I cannot add a custom GeoTIFF. i add a new GeoTIFF type to
the Coverage Store, fill out the file name "file:data/coverages/mytif"
and click on 'Submit' it displays "null" on the left hand side and
stays on the page.

I have tried placing the TIF in both /cite...data/coverages and in the
/server.../data/coverages directories to no avail. (which one does the
IDE debug use?)

You have a few options here:
1. Look at the console output for an indication of what is wrong
2. Configure the Geotiff as a "World Image" coverage (write a world
file for it first).

I am also looking for the source code to the SDE Plugin and
did not see it in SVN, is it closed source

That is probably in the Geotools SVN, you will need to look there.

Alex

Adam Hill wrote:

Following the lists advice I have gotten the WCS branch from SVN,
configured and is working fine out of the box, all the default data
stores are displaying with the internal Mapbender.

But.... I cannot add a custom GeoTIFF. i add a new GeoTIFF type to
the Coverage Store, fill out the file name "file:data/coverages/mytif"
and click on 'Submit' it displays "null" on the left hand side and
stays on the page.

I have tried placing the TIF in both /cite...data/coverages and in the
/server.../data/coverages directories to no avail. (which one does the
IDE debug use?) All the normal tools I use can display the TIF
normally (Mapserver, OpenEv) and gdalinfo reports a CRS and it looks
fine.

Try putting it in data_dirs/userBasic/data. I think that's where the default src building loads from. Apologies about the source tree, it's in a bit of flux, as we're transitioning from having to build your directory as part of the compile process (cite/ into server) to one where you just set an env variable (and point it at a data_dir). See: http://docs.codehaus.org/display/GEOSDOC/GeoServer+Data+Directory

Any ideas? I am also looking for the source code to the SDE Plugin and
did not see it in SVN, is it closed source

No, nothing we do is closed source - promise :slight_smile: But we do put all our data plug-ins in to GeoTools, so they live on the SVN there. Indeed a bulk of GeoServer's code lives in GeoTools, where we can share with uDig and others, and gain more eyes on our bugs. GeoTools is also LGPL, so it allows sharing with those who could not make use of GeoServer with the GPL. The arcsde svn is at: http://svn.geotools.org/geotools/trunk/gt/plugin/arcsde/
The WCS branch is currently tracking GeoTools 2.2 I think, and GeoServer 1.3 trackes GeoTools 2.1

best regards,

Chris

-------------------------------------------------------
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that extends applications into web and mobile media. Attend the live webcast
and join the prime developer group breaking into this new coding territory!
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--
Chris Holmes
The Open Planning Project
thoughts at: http://cholmes.wordpress.com

https://svn.codehaus.org/geoserver/branches/wcs-branch/trunk/geoserver/ is where the code lives. Notes about setting up subversion are here: http://docs.codehaus.org/display/GEOSDOC/Subversion
and here: http://docs.codehaus.org/display/GEOSDOC/Source+Code
Use the url I gave above instead of the one's in the examples, to get the wcs branch instead of geoserver trunk.

Chris

Akkineni Vijay wrote:

Hi Guys,

                Sorry for asking such silly question . can u sugest
how can i get the latest version from subversion .

Regards,
Vijay Akkineni.

On 3/4/06, Simone Giannecchini <simboss1@anonymised.com> wrote:

Hi Vijay, Hi all,
I have a couple of advices.
The version of the WCS you are using (0.2) was largely UNoptimized for
large data set, hence the only way you can improved speed is reduce
the size of the data set you want to show. However this is a real bad
solution, I know.

What I suggest is as follows:
instead of using version 0.2 of WCS do a fresh export from the svn
repository of the latest development version and build it. This
version contains many improvemenets as far as it concerns with
rendering large data sets, since it DOES support tiling and deferred
loading (which means I load only what you need when you really need
it) as well as minscale, max scale, which allows you to decide whether
your layer pops in depending on the level of zoom. In addition, and
this is true for EVERY map server I know you need to tile your tiff
image in order to speed things up. A simple way to do this is using
one of the gdal utilities you can freely download from the internet. I
have some utilites I wrote in Java but until next wednesday I won't be
able to share them.

I know I am being a bit fuzzy, but I have a live demostration next
wednesday, therefore I am a bit busy. After wednesday, if I don't get
fired (hopefully not) I will guide you through the process of setting
up the new WCS since I am intersting in having someone else testing
it. I can assure that performances, if the server is well tuned, are
very very good. I have been testing it myself with a 2GB geotiff for
the new marble next generation.

Hope this sounds good for you.

Simone.

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
Simone Giannecchini
Software Engineer
Freelance Consultant

http://simboss.wordpress.com/

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
On 3/3/06, Chris Holmes <cholmes@anonymised.com> wrote:

Did you download the 1.3 rc 2 release, or are you working off of the
subversion repository? There have been a lot of performance
improvements I believe since the last release, so you could benefit just
by working off of subversion, or waiting a few weeks till the next release.

best regards,

Chris

Akkineni Vijay wrote:

Hi Guys,

          I am using Geoserver 1.3 wcs version and mapbuilder to show
the images . I have a tiff image which is around 50mb and i have
created a coverage for that image and i am using wms to render the
image in the mapbuilder i am able to show the image in the mapbuilder
but it is very slow ..how can i increase the performance . Is there
any other way ...please help.

regards,
Vijay Akkineni.

-------------------------------------------------------
This SF.Net email is sponsored by xPML, a groundbreaking scripting language
that extends applications into web and mobile media. Attend the live webcast
and join the prime developer group breaking into this new coding territory!
http://sel.as-us.falkag.net/sel?cmd=lnk&kid0944&bid$1720&dat1642
_______________________________________________
Geoserver-users mailing list
Geoserver-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/geoserver-users

--
Chris Holmes
The Open Planning Project
thoughts at: http://cholmes.wordpress.com

--

--
Chris Holmes
The Open Planning Project
thoughts at: http://cholmes.wordpress.com

---------- Forwarded message ----------
From: Simone Giannecchini <simboss1@anonymised.com>
Date: Mar 10, 2006 9:18 PM
Subject: Re: [Geoserver-users] How to increase the Performance of
image rendering
To: Chris Holmes <cholmes@anonymised.com>
Cc: Akkineni Vijay <akkineniv@anonymised.com>,
"geoserver-users@lists.sourceforge.net"
<geoserver-users@lists.sourceforge.net>

Hi akkineni (or vijai? :wink: ),
here attached you'll find a simple utility packed as an eclipse
project which will open up a world image or a geotiff and will rewrite
it tiled as a geotiff.
Libraries are in the lib folder, you simply have to feed the util
with the name of the file to read (as an instance c:/a.tiff) and the
absolute path of the final geotiff (c:/a_tiled.tiff). You need to have
JAI and ImageIO tools installed (look in geotolls guide if you don't
know what they are).

Once you have the tiled geotiff you have to move the geotiff under a
dir (let's call it my_dir) under data/coverages in geoserver.
At this point go to config->data->coveragestore click new and select
tagged image file format blah blah, it stands for geotiff ( I have to
change that I know). Select a unique name and submit. In the url
textbox insert the path to the file and submit. Everything should go
fine, if so apply and save.

Now go to config->data->coverage and select new. Select in the combo
the previous coverage store. and press new. Select the raster style
and leave everything else as it is, wcs won't work but wms will.
Submit, apply and save and you will be ready to go.

One suggestion the raster style is just a simple dumb file which we
ignore for geotiff files. I suggest you play with the max scale in
order to decide when you high res image will jump in in order to avoid
wating resources for showing a 3x3 image out of a 4000x4000 geotiff.
An example which should be good for you would be as follows
<?xml version="1.0" encoding="UTF-8"?>
<StyledLayerDescriptor xmlns="http://www.opengis.net/sld&quot;
xmlns:ogc="http://www.opengis.net/ogc&quot;
xmlns:xlink="http://www.w3.org/1999/xlink&quot;
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance&quot;
xsi:schemaLocation="http://www.opengis.net/sld
http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd&quot; version="1.0.0">
<UserLayer>
       <Name>raster_layer</Name>
       <UserStyle>
               <Name>raster</Name>
               <Title>A boring default style</Title>
               <Abstract>A sample style for rasters</Abstract>
               <FeatureTypeStyle>
               <FeatureTypeName>Feature</FeatureTypeName>
                       <Rule>
<MaxScaleDenominator>100000</MaxScaleDenominator>
                               <RasterSymbolizer>
                                   <Opacity>1.0</Opacity>
                                   <ColorMap>
                                      <ColorMapEntry color="#000000"
quantity="-500"
label="nodata" opacity="0.0"/>
                                      <ColorMapEntry color="#00ff00"
quantity="-500" label="values"/>
                                      <ColorMapEntry color="#00fa00"
quantity="-417" label="values"/>
                                      <ColorMapEntry color="#14f500"
quantity="-333" label="values"/>
                                      <ColorMapEntry color="#28f502"
quantity="-250" label="values"/>
                                      <ColorMapEntry color="#3cf505"
quantity="-167" label="values"/>
                                      <ColorMapEntry color="#50f50a"
quantity="-83" label="values"/>
                                      <ColorMapEntry color="#64f014"
quantity="-1" label="values"/>
                                      <ColorMapEntry color="#7deb32"
quantity="0" label="values"/>
                                      <ColorMapEntry color="#78c818"
quantity="30" label="values"/>
                                      <ColorMapEntry color="#38840c"
quantity="105" label="values"/>
                                      <ColorMapEntry color="#2c4b04"
quantity="300" label="values"/>
                                      <ColorMapEntry color="#ffff00"
quantity="400" label="values"/>
                                      <ColorMapEntry color="#dcdc00"
quantity="700" label="values"/>
                                      <ColorMapEntry color="#b47800"
quantity="1200" label="values"/>
                                      <ColorMapEntry color="#c85000"
quantity="1400" label="values"/>
                                      <ColorMapEntry color="#be4100"
quantity="1600" label="values"/>
                                      <ColorMapEntry color="#963000"
quantity="2000" label="values"/>
                                      <ColorMapEntry color="#3c0200"
quantity="3000" label="values"/>
                                      <ColorMapEntry color="#ffffff"
quantity="5000" label="values"/>
                                      <ColorMapEntry color="#ffffff"
quantity="13000" label="values"/>
                                   </ColorMap>
                                   <OverlapBehavior>
                                      <AVERAGE/>
                                   </OverlapBehavior>
                                   <ShadedRelief/>
                               </RasterSymbolizer>
                       </Rule>
               </FeatureTypeStyle>
       </UserStyle>
</UserLayer>
</StyledLayerDescriptor>

I suggest you set up a style for the geotiff including max scale
tehrefore your geotiff will not appear unless you zoom in properly.
Just replace the original raster style with this one or import it as a
new one (check the list for doing that) and your geotiff won't appear
unless you zoom in properly.

As far as building from code the process is equal to the original
geoserver I would just download the code and proceed with ant
test-ext. As a preliminary step set the build.properties to point to
your directories (tomcat and such).

I hope I provided enough info, I wont' be around tomorrow, but I will
be on sunday, I am sure we will make it for this monday!

Ciao,
  Simone.

On 3/8/06, Chris Holmes <cholmes@anonymised.com> wrote:

https://svn.codehaus.org/geoserver/branches/wcs-branch/trunk/geoserver/
is where the code lives. Notes about setting up subversion are here:
http://docs.codehaus.org/display/GEOSDOC/Subversion
and here: http://docs.codehaus.org/display/GEOSDOC/Source+Code
Use the url I gave above instead of the one's in the examples, to get
the wcs branch instead of geoserver trunk.

Chris

Akkineni Vijay wrote:
> Hi Guys,
>
> Sorry for asking such silly question . can u sugest
> how can i get the latest version from subversion .
>
> Regards,
> Vijay Akkineni.
>
> On 3/4/06, Simone Giannecchini <simboss1@anonymised.com> wrote:
>
>>Hi Vijay, Hi all,
>>I have a couple of advices.
>>The version of the WCS you are using (0.2) was largely UNoptimized for
>>large data set, hence the only way you can improved speed is reduce
>>the size of the data set you want to show. However this is a real bad
>>solution, I know.
>>
>>What I suggest is as follows:
>>instead of using version 0.2 of WCS do a fresh export from the svn
>>repository of the latest development version and build it. This
>>version contains many improvemenets as far as it concerns with
>>rendering large data sets, since it DOES support tiling and deferred
>>loading (which means I load only what you need when you really need
>>it) as well as minscale, max scale, which allows you to decide whether
>>your layer pops in depending on the level of zoom. In addition, and
>>this is true for EVERY map server I know you need to tile your tiff
>>image in order to speed things up. A simple way to do this is using
>>one of the gdal utilities you can freely download from the internet. I
>>have some utilites I wrote in Java but until next wednesday I won't be
>>able to share them.
>>
>>I know I am being a bit fuzzy, but I have a live demostration next
>>wednesday, therefore I am a bit busy. After wednesday, if I don't get
>>fired (hopefully not) I will guide you through the process of setting
>>up the new WCS since I am intersting in having someone else testing
>>it. I can assure that performances, if the server is well tuned, are
>>very very good. I have been testing it myself with a 2GB geotiff for
>>the new marble next generation.
>>
>>Hope this sounds good for you.
>>
>>Simone.
>>
>>
>>°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
>>Simone Giannecchini
>>Software Engineer
>>Freelance Consultant
>>
>>http://simboss.wordpress.com/
>>
>>°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
>>On 3/3/06, Chris Holmes <cholmes@anonymised.com> wrote:
>>
>>>Did you download the 1.3 rc 2 release, or are you working off of the
>>>subversion repository? There have been a lot of performance
>>>improvements I believe since the last release, so you could benefit just
>>>by working off of subversion, or waiting a few weeks till the next release.
>>>
>>>best regards,
>>>
>>>Chris
>>>
>>>Akkineni Vijay wrote:
>>>
>>>>Hi Guys,
>>>>
>>>> I am using Geoserver 1.3 wcs version and mapbuilder to show
>>>>the images . I have a tiff image which is around 50mb and i have
>>>>created a coverage for that image and i am using wms to render the
>>>>image in the mapbuilder i am able to show the image in the mapbuilder
>>>>but it is very slow ..how can i increase the performance . Is there
>>>>any other way ...please help.
>>>>
>>>>regards,
>>>>Vijay Akkineni.
>>>>
>>>>
>>>>-------------------------------------------------------
>>>>This SF.Net email is sponsored by xPML, a groundbreaking scripting language
>>>>that extends applications into web and mobile media. Attend the live webcast
>>>>and join the prime developer group breaking into this new coding territory!
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>>>>_______________________________________________
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>>>>Geoserver-users@lists.sourceforge.net
>>>>https://lists.sourceforge.net/lists/listinfo/geoserver-users
>>>
>>>--
>>>Chris Holmes
>>>The Open Planning Project
>>>thoughts at: http://cholmes.wordpress.com
>>>
>>>
>>>
>>
>>
>>--
>>

--
Chris Holmes
The Open Planning Project
thoughts at: http://cholmes.wordpress.com

--
°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
Simone Giannecchini
Software Engineer
Freelance Consultant

http://simboss.wordpress.com/

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

--
°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°
Simone Giannecchini
Software Engineer
Freelance Consultant

http://simboss.wordpress.com/

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°