Re: Where's my image?

[Ben Burford <benb@xxxxxxxxxxxx>]

I put the full source for an html page in the email that I sent a few minute
s ago.  Obviously that didn't work and I'm sending just the necessary part o
f the source in this email.  Please ignore the email that I sent just before
 this.  Ben


Hello Phil and All,

Unfortunately its not resolved yet, but I think I have the information that 
will lead us to the solution.

The html page that my Internet Explorer browser is receiving looks normal ex
cept that the image (plot) of the data is missing.  The source for the html 
page contains:

-------------------------------------------------
<table>  <tr>  <td>
    <img border="0" src="http://localhost:80/las-output/68321cd073c6ecf88771
c9d824e19672.gif">
  </td>  </tr>
</table>
-------------------------------------------------

The image (68321cd073c6ecf88771c9d824e19672.gif) is on my LAS server under /
usr/local/las/las/server/output and its the correct image.  But my browser d
oesn't know where to get the image at the location "localhost" (http://local
host:80 . . .).  If it said http://172.16.7.82:80/ . . . then I think it wou
ld work OK.  Interestingly, further down in the source for this page it cont
ains 
"http://172.16.7.82/las-bin/LASserver.pl . . . 
so this part of the same page has the correct/necessary address information.

So the question(s) now are:

1. What LAS software creates the html source for this output page?

2. Where does it get the address/location information for the address of my 
LAS server, that it puts into the html source for the image?


To answer your questions below Phil:
I tried my IE v6.0 browser on various other online LAS servers version 5.X a
nd 6.X and they all worked fine.
I installed Mozilla 1.4 and it works OK on other online LAS servers but has 
the same problem when directed to my LAS server.


Thank you,

Ben



At 09:31 2004/06/15 -0700, you wrote:
> Ben,
> 
> Hopefully this is resolved for you at this point. Again I am not a LAS
> authority on this but I will attempt to answer the questions presented.
> 
> 1. Does your answer account for the fact that this computer and browser
> (XP with Internet Explorer 6.0) works fine when I access other LAS sites
> that are online?
> 
> I am curious of the versions of LAS server which are running on the
> server end that the browser is accessing. Are these all 6.3 or 6.2 or
> are they earlier versions of the server. 
> 
> 2. Does your answer account for the information I listed below,
> especially t
> > he items from the Apache access_log that show that in the case of the lo
cal/
> > Mozilla client there was a GET /las-bin / followed by a GET /las-output.
  Bu
> > t in the case of this XP/IE system there were two identical GET /las-bin
/,  
> > without any GET /las-output?
> 
> The following is entirely speculation on my part, it may or may not be
> on the right track.
> 
> Possibly the difference in the log entries comes into effect if the IE
> browser cannot display the map applet, therefore it again requests the
> image/page which would result in the duplicate log. This is speculation
> on my part and could be completely wrong, I am just trying to offer
> ideas until the LAS experts respond. 
> 
> I am curious of the result and log entries if you run the query in the
> 'no-applet' mode. 
> -----------------------------------------------------------------------
> Note: If your browser doesn't fail-over, you may access the 'no-applet'
> mode on LAS 6.x by appending '?use_java=false' to the URL. For example:
> 
> http://someserver/las/servlets/dataset?use_java=false
> ------------------------------------------------------------------------
> 
> Hope this helps you,
> 
> Phil Moses