RE: your mail

Hi Michelle,

Your version of the SpreadSheet is certainly what is being
executed now, so your CLASSPATH is not the problem this time.

The error messages you're getting are consistent with sending
"Data/small.v5d" as the source argument to addDataSource(),
with no such file existing.  That is, the SpreadSheet tries
to find any file with such a path, and if unsuccessful,
assumes it must be a formula instead.

If it keeps printing those exact same errors, even after you
changed to "D:\visad\unzipped\visad\ss\small.v5d" and
recompiled, then you are not executing the latest version of
your code.

First, make absolutely sure you are running the latest,
compiled version of your code.  One way to test this is to
put a temporary System.out.println() statement in your
method, which prints a string to the screen to verify that
the latest version is getting executed.

Second, you could try calling:
   addDataSource(source, BasicSSCell.URL_SOURCE)
which forces the SpreadSheet to interpret the given source
string as a file or URL, instead of as a formula.  This will
eliminate the formula errors you have been receiving, but if
your path is incorrect, you will still receive an error.

-Curtis

At 12:08 PM 6/9/2003, you wrote:
>Hi Curtis,
>
>My GO button now appears, but when I click on it, I expect the image
>small.v5d to appear in the top left cell. However, instead of the image
>showing up in the cell, I get these errors in the cell:
>
>A1d1: Variable "Data" has no value
>"small" has no value
>"v5d" has no value
>could not evaluate binary operator "."
>could not evaluate binary operator "/"
>
>I made sure small.v5d was in D:\visad\unzipped\visad\ss as well as
>D:\visad\data and changed my code to try out both paths:
>
>        public void loadMyDataSet() throws VisADException, RemoteException {
>        try {
> 
>DisplayCells[0][0].addDataSource("D:\visad\unzipped\visad\ss\small.v5d");
>        //DisplayCells[0][0].addDataSource("d:/visad/data/small.v5d");
>        }
>                catch (VisADException exc) {
>        System.out.println("Could not load file small.v5d into the
>SpreadSheet");
>        }
>        catch (RemoteException exc) {
>        System.out.println("Could not load file small.v5d into
>spreadsheet");
>                }
>}
>
>But I still get the same error message in the cell. I also see A1d1:
>data/small.v5d appearing in the top bar next to "add" and "delete" which
>should really be D:\visad\unzipped\visad\ss\small.v5d so I'm wondering why
>it keeps looking in that directory instead of the one that I specified in
>SpreadSheet.java. I checked my classpath to make sure that it would read my
>re-compiled files by putting visad.jar at the end.
>
>classpath:
>D:\visad\unzipped;D:\visad\unzipped\visad;D:\jgap-1.0-RC1\src;D:\visad;D:\lv
>is\lib;D:\VisADJython\jre\lib;D:\apache-ant-1.5.3-1\lib;C:\Java\j2re1.4.1_03
>;D:\Java\j2re1.4.1_03\lib\rt.jar;C:\j2sdk1.4.1_03;C:\j2sdk1.4.1_03\lib;D:\ap
>ache-ant-1.5.3-1\bin;D:\JUnit\junit3.8.1;D:\JUnit\junit3.8.1\junit\tests\fra
>mework;D:\visad\unzipped\visad\ss;D:\visad\visad_src-2.0.jar;D:\VisADJython\
>visad.jar
>
>Does anyone know what could be the problem?
>
>Thanks for your help,
>Michelle
>
>Michelle Kam           (408) 742-2881
>Lockheed Martin Space Systems Co. SSM/ATC/MSIS
>B/153 O/L922 
>1111 Lockheed Martin Way, Sunnyvale, CA 94089
>
>
>
>
>-----Original Message-----
>From: Curtis Rueden [mailto:curtis@xxxxxxxxxxxxx]
>Sent: Monday, June 09, 2003 9:21 AM
>To: Kam, Michelle C
>Cc: visad-list@xxxxxxxxxxxxx
>Subject: RE: your mail
>
>
>Hi Michelle,
>
>I would put the file in the same folder with the rest of the
>SpreadSheet's GIF files.  I believe (but I'm not 100% sure)
>that it will also work if it's in the current directory (i.e.,
>the folder from which you launch the SpreadSheet).
>
>What is StyleSheet.java?  Is that an extension of the
>SpreadSheet you created?  If so, you'd launch that program.
>If you meant "SpreadSheet.java", launch it with:
>     java -mx512m visad.ss.SpreadSheet
>
>If you use "java -jar visad.jar" it will use the SpreadSheet
>class file from within the JAR file, instead of the recompiled
>one that you created, which is not what you want.
>
>-Curtis
>
>At 11:03 AM 6/9/2003, you wrote:
>>Hi,
>>
>>Could you tell me where I can add my GO.gif icon for the "GO" button I set
>>up in StyleSheet.java? I checked the different files and can't seem to find
>>an example. It's weird that I was able to compile just fine and did not get
>>a javax.swing.ImageIcon NullPointerException without that .gif file
>included
>>(as you mentioned).
>>
>>I made sure that visad.jar was at the very end of my classpath so that
>>probably isn't the problem. Also, when you say to not run it by typing
>"java
>>-jar visad.jar", how exactly should I run it? I was just opening up a new
>>VisAD spreadsheet all over again. 
>>
>>Thanks for your help,
>>Michelle
>>
>>Michelle Kam           (408) 742-2881
>>Lockheed Martin Space Systems Co. SSM/ATC/MSIS
>>B/153 O/L922 
>>1111 Lockheed Martin Way, Sunnyvale, CA 94089
>>
>>
>>
>>
>>-----Original Message-----
>>From: Curtis Rueden [mailto:curtis@xxxxxxxxxxxxx]
>>Sent: Monday, June 09, 2003 5:48 AM
>>To: Kam, Michelle C
>>Cc: visad-list@xxxxxxxxxxxxx
>>Subject: RE: your mail
>>
>>
>>Hi Michelle,
>>
>>The steps you've taken should be sufficient to add a new button
>>to the SpreadSheet, assuming you've also added a GO.gif icon for
>>that button (if not, you would receive a NullPointerException
>>from within javax.swing.ImageIcon).
>>
>>The only thing I can think of is that perhaps when you execute
>>"java visad.ss.SpreadSheet", it could be running a different
>>version of the application.  This could occur (I think) if you
>>have a CLASSPATH that includes visad.jar before other folders
>>that contain your modified version of the SpreadSheet.
>>
>>Or perhaps you are running "java -jar visad.jar" to execute the
>>SpreadSheet, in which case it would use the SpreadSheet.class
>>file within visad.jar instead of your recompiled version.
>>
>>-Curtis
>>
>>At 07:07 PM 6/6/2003, you wrote:
>>>Hello,
>>>
>>>I sent an email asking about how to link a particular file with a button
>>>added to the toolbar on the top of the spreadsheet. I added the following
>>to
>>>SpreadSheet.java in the ss package:
>>>
>>>      addToolbarButton("GO", "Open small.v5d", "loadMyDataSet", true,
>>>Toolbar);
>>>
>>>        public void loadMyDataSet() throws VisADException, RemoteException
>>{
>>>        try {
>>>     DisplayCells[0][0].addDataSource("data/small.v5d");
>>>       } 
>>>        catch (VisADException exc) {
>>>     System.out.println("Could not load file small.v5d into the
>>>SpreadSheet");
>>>}
>>>        catch (RemoteException exc) {
>>>     System.out.println("Could not load file small.v5d into spreadsheet");
>>>  }
>>>}
>>>
>>>It compiles normally, but when I open up VisAD, I don't see my changes. Do
>>>you know if I am supposed to do something in addition to just opening up a
>>>VisAD SpreadSheet to see my changes?
>>>
>>>Thanks!
>>>Michelle Kam
>>>
>>>Michelle Kam           (408) 742-2881
>>>Lockheed Martin Space Systems Co. SSM/ATC/MSIS
>>>B/153 O/L922 
>>>1111 Lockheed Martin Way, Sunnyvale, CA 94089
>>>
>>>
>>>
>>>
>>>-----Original Message-----
>>>From: Tom Whittaker [mailto:tomw@xxxxxxxxxxxxx]
>>>Sent: Friday, June 06, 2003 11:24 AM
>>>To: Kam, Michelle C
>>>Cc: 'Bill Hibbard'; visad-list@xxxxxxxxxxxxx
>>>Subject: Re: your mail
>>>
>>>
>>>Yes, VisAD has a text adapter that can deal with csv files that 
>>>essentially contain data to be made into a single VisAD Data object. 
>>>You must, however, add two lines at the beginning of the file to define 
>>>the math type of the resulting VisAD Data object, and the order of the 
>>>parameters in the file.  The data may be comma, tab, or space-delimited.
>>>
>>>All this is described in the readme file at:
>>>
>>>http://www.ssec.wisc.edu/~billh/README.text
>>>
>>>(the latest copy of this file can be found in the VisAD source code 
>>>under:  visad/data/text/README.text -- the code was recently updated to 
>>>permit better handling of time formats).
>>>
>>>tom
>>>
>>>
>>>Kam, Michelle C wrote:
>>>
>>>> Hi,
>>>> 
>>>> Do you know if Visad can work with (import/export) Excel csv files?
>>>> 
>>>> Thanks,
>>>> Michelle
>>>> 
>>>> Michelle Kam           (408) 742-2881
>>>> Lockheed Martin Space Systems Co. SSM/ATC/MSIS
>>>> B/153 O/L922 
>>>> 1111 Lockheed Martin Way, Sunnyvale, CA 94089
>>>> 
>>>> 
>>>> 
>>>> 
>>>> -----Original Message-----
>>>> From: Bill Hibbard [mailto:billh@xxxxxxxxxxxxx]
>>>> Sent: Friday, June 06, 2003 3:51 AM
>>>> To: Kam, Michelle C
>>>> Cc: visad-list@xxxxxxxxxxxxx
>>>> Subject: Re: your mail
>>>> 
>>>> 
>>>> Hi Michelle,
>>>> 
>>>> I am CC'ing to visad-list since your message to the list
>>>> was bounced by our dumb majordomo server because the
>>>> subject line included "help".
>>>> 
>>>> When you compile VisAD from source, your CLASSPATH environment
>>>> variable must include the PARENT directory of visad. So if your
>>>> visad package is in /home/michelle/java/visad, then your
>>>> CLASSPATH must include /home/michelle/java.
>>>> 
>>>> Good luck,
>>>> Bill
>>>> 
>>>> On Thu, 5 Jun 2003, Kam, Michelle C wrote:
>>>> 
>>>> 
>>>>>Hi,
>>>>>
>>>>>I downloaded the source code for visad and I'm not trying to compile the
>>>>>.java classes for the spreadsheet. But I'm running into many compile
>>>> 
>>>> errors.
>>>> 
>>>>>I'm wondering if I installed it incorrectly. Are there instructions on
>>how
>>>>>to get started if I'm compiling only the spread sheet code on a windows
>>>>>machine?
>>>>>
>>>>>Thanks,
>>>>>Michelle Kam
>>>>>
>>>>>Michelle Kam           (408) 742-2881
>>>>>Lockheed Martin Space Systems Co. SSM/ATC/MSIS
>>>>>B/153 O/L922
>>>>>1111 Lockheed Martin Way, Sunnyvale, CA 94089
>>>>>
>>>>>
>>>>>
>>>>>
>>>> 
>>>> 
>>>> 
>>>
>>>-- 
>>>Tom Whittaker (tomw@xxxxxxxxxxxxx)
>>>University of Wisconsin-Madison
>>>Space Science and Engineering Center
>>>Cooperative Institute for Meteorological Satellite Studies
>>>Phone/VoiceMail: 608.262.2759