All,
Thanks for your help with this issue. I was finally able to get IDV 2.7b2
running on a 32 bit CentOS server by specifying Java3D 1.3 (compatibility
mode) during install instead of the default Java3D 1.5, and using Xvfb when
running ISL scripts. The error below no longer occurs and all ISL scripts
run as they should.
I gave up trying to install 2.7b2 on a 64 bit RH5 server. There isn't an
option to specify Java3D 1.3 (compatibility mode) as with the 32bit version,
and I wasn't able to find Java3D 1.3 files searching the Internet.
Regards,
Evan
-----Original Message-----
From: idvusers-bounces@xxxxxxxxxxxxxxxx
[mailto:idvusers-bounces@xxxxxxxxxxxxxxxx] On Behalf Of Evan Lowery
Sent: Wednesday, June 03, 2009 3:43 PM
To: 'Jeff McWhirter'
Cc: idvusers@xxxxxxxxxxxxxxxx
Subject: Re: [idvusers] Creating ISL script / xidv bundle which
generatesimages in "full screen" view
Jeff,
One more quick frustrating question which has been addressed before, but
never seemed to be solved. I'm working on two servers with Redhat Linux
64/32 OS installed respectively and the same error occurs on both. From
what I gathered through IDV support archives, mailing list, and google
this
is an ATI graphics card issue, but there doesn't appear to be a clear
solution. I'm unable to have IDV automatically generate images until
this
problem is resolved. GEMPAK does have some programs which can almost do
what IDV does (IMG2GD, GD2IMG) and runs properly on our servers, but can
barely handle manipulating GINI satellite projections from their native
projection.
I installed the nightly build of IDV which includes the new viewpoint
settings, created a new custom projection (leaving projections.xml
untouched), and updated the ISL script using the changes you suggested.
ATTEMPT1: Installed nightly IDV build with OpenGL 1.5, the following
error
message came up when trying to run the ISL script
[evan@server1 idv]$ /usr/local/bin/IDV_2.7b2/runIDV
SUPER_NATIONAL_8km_VIS.isl
Call the bundle and set the display width and height
Wed Jun 03 08:51:56 EDT 2009: Loading bundle:
SUPER_NATIONAL_8km_VIS.xidv
Java 3D WARNING : reported GLX version = 1.2
GLX version 1.3 or higher is required
The reported version number may be incorrect. There is a known
ATI driver bug in glXQueryVersion that incorrectly reports the GLX
version as 1.2 when it really is 1.3, so Java 3D will attempt to
run anyway.
JAVA 3D: OpenGL 1.2 detected; will run with reduced functionality
Java 3D ERROR : FBConfig doesn't support pbuffer or pixmap returns None
DefaultRenderingErrorListener.errorOccurred:
OFF_SCREEN_BUFFER_ERROR: Renderer: Error creating Canvas3D off-screen
buffer
graphicsDevice = X11GraphicsDevice[screen=0]
canvas = visad.java3d.VisADCanvasJ3D[canvas0,0,0,960x720,invalid]
ATTEMPT2: Installed nightly IDV build with OpenGL 1.3 (compatibility
mode),
everything seemed to run smoothly, but the result was a solid black
image.
[evan@server1 idv]$ /usr/local/bin/IDV_2.7b2/runIDV
SUPER_NATIONAL_8km_VIS.isl
Call the bundle and set the display width and height
Wed Jun 03 08:57:42 EDT 2009: Loading bundle:
SUPER_NATIONAL_8km_VIS.xidv
Wed Jun 03 08:57:57 EDT 2009: Waiting for displays to render
Wed Jun 03 08:58:02 EDT 2009: Done waiting for displays to render
Set the center of the projection
Set the viewpoint scale
Create a gif image and exit
Wed Jun 03 08:58:07 EDT 2009: Writing image:SUPER_NATIONAL_8km_VIS.gif
ISL Script:
<isl debug="true" offscreen="true">
<echo message="Call the bundle and set the display width and
height"/>
<bundle file="SUPER_NATIONAL_8km_VIS.xidv" width="960"
height="720"/>
<pause/>
<echo message="Set the center of the projection"/>
<center lat="38.6" lon="264.3"/>
<pause/>
<echo message="Set the viewpoint scale"/>
<viewpoint rotx="0" roty="0" rotz="0" scale="1.0368" transx="0"
transy="0" transz="0"/>
<pause/>
<echo message="Create a gif image and exit"/>
<image file="SUPER_NATIONAL_8km_VIS.gif"/>
</isl>
PROJECTIONS.XML file:
<?xml version="1.0" encoding="ISO-8859-1"?>
<object class="java.util.ArrayList">
<method name="add">
<object class="ucar.unidata.geoloc.projection.Stereographic">
<property name="TangentLon">
<double>-96.0</double>
</property>
<property name="Name">
<string><![CDATA[custom_us]]></string>
</property>
</object>
</method>
</object>
SUPER_NATIONAL_8km_VIS.xidv bundle: (attached)
Thanks,
Evan
-----Original Message-----
From: Jeff McWhirter [mailto:jeffmc@xxxxxxxxxxxxxxxx]
Sent: Wednesday, June 03, 2009 6:49 AM
To: Evan Lowery
Cc: idvusers@xxxxxxxxxxxxxxxx
Subject: Re: [idvusers] Creating ISL script / xidv bundle which
generates
images in "full screen" view
Hi Evan,
>
>
> Goal: Generate a 960x720 satellite image centered over the U.S. which
> exactly matches an existing 960x720 image of the US. This image needs
to
be
> automatically generated every ~15 minutes as new satellite data comes
in.
>
>
>
> STEP1: Create custom Projection named "custom_us"
>
> Type: Stereographic, False Easting: 0, False Northing: 0, Scale: 1,
Tangent
> lat: 90.0, Tangent lon: -96.0
>
>
>
> STEP2: Move the bounding box of the projection by editing
> ".undata/idv/DefaultIdv/projections.xml" <after hours of trial and
error>
>
>
Just curious why the hand editing of the projection file? I know our
projection editor needs work. What could we do in the IDV to make this
process easier? Enable the exact setting of the bounding box values? Any
ideas?
Also - is there anything we could add to the ISL to have made this
process easier?
For example, we just added last week a viewpoint tag:
http://www.unidata.ucar.edu/software/idv/release/nightly/docs/userguide/
isl/
DataAndDisplays.html#viewpoint
that allows for scripted positioning of the viewpoint.
We also have a center tag:
http://www.unidata.ucar.edu/software/idv/release/nightly/docs/userguide/
isl/
DataAndDisplays.html#center
that allows for positioning.
We can also do clipping of the image:
http://www.unidata.ucar.edu/software/idv/release/nightly/docs/userguide/
isl/
ImagesAndMovies.html#clip
[...]
>
>
> STEP11: Run isl script to generate gif image. Result: creates an
image
NOT
> 960 x 720 pixels, instead it creates an image which is the size of the
> display panel (1164 x 1002 pixels) and is clearly distorted from the
view
I
> need.
>
>
When you run isl in onscreen mode the view size is whatever size the gui
layout of the window ends up with. What you should do is set
offscreen=true and you can set the size of the view in the bundle tag
with the width/height attributes:
http://www.unidata.ucar.edu/software/idv/docs/userguide/isl/DataAndDispl
ays.
html
-Jeff
International Institute for Geo-Information Science and Earth Observation
(ITC)
Chamber of Commerce: 410 27 560
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