jcharts-users — For users of jCharts

Re: [jCharts-users] getting started

[Nathaniel G. A. <nat...@ya...>]

You are passing NULL in for the ChartProperties, AxisProperties, LegendProperties, and
BarChartProperties




--- Christian Cryder <chr...@gr...> wrote:
> Hi folks,
> 
> I'm obviously doing something stupid, so maybe you can help me... Here's my
> code snippet, taken from the samples:
> ----------------------------------
> BarChartProperties barChartProperties = null;
> LegendProperties legendProperties = null;
> AxisProperties axisProperties = null;
> ChartProperties chartProperties = null;
> int width = 550;
> int height = 360;
> 
> try {
>     String[] xAxisLabels = {"1995", "1996", "1997", "1998", "1999", "2000",
> "2001", "2002", "2003", "2004"};
>     String xAxisTitle = "Years";
>     String yAxisTitle = "Problems";
>     String title = "Micro$oft At Work";
>     IAxisDataSeries dataSeries = new DataSeries( xAxisLabels, xAxisTitle,
> yAxisTitle, title );
> 
>     double[][] data = new double[][]{{1500, 6880, 4510, 2600, 1200, 1580,
> 8000, 4555, 4000, 6120}};
>     String[] legendLabels = {"Bugs"};
>     Paint[] paints = new Paint[]{Color.blue.darker()};
>     dataSeries.addIAxisPlotDataSet( new AxisChartDataSet( data,
> legendLabels, paints, ChartType.BAR, barChartProperties ) );
>     AxisChart axisChart = new AxisChart( dataSeries, chartProperties,
> axisProperties, legendProperties, width, height);
> 
>     ...
>     ServletEncoderHelper.encodePNG(axisChart, httpServletResponse);
>     ...
> 
> catch(ChartDataException chartDataException) {
>     chartDataException.printStackTrace();
> }
> ----------------------------------
> 
> Notice that I am _not_ calling renderWithImageMap(), getImageMap(), etc the
> way the sample is. Instead, I'm trying to use the chart normally, just as an
> image.
> 
> The problem occurs within encodePNG()...it basically throws a null pointer
> exception, and because the code was apparently compiled without line
> numbers, I don't get a whole lot for debugging...
> 
> Now, I tried a simple pie chart example, and that _did_ work...so obviously,
> I am doing something specifically wrong here. Does anyone have any ideas? Or
> do I have to go build the project from source in order to get line numbers
> and then track it down from there.
> 
> Any suggestions would be greatly appreciated...
> 
> tia,
> Christian
> ----------------------------------------------
> Christian Cryder
> Internet Architect, ATMReports.com
> Project Chair, BarracudaMVC - http://barracudamvc.org
> ----------------------------------------------
> "Coffee? I could quit anytime, just not today"
> 
> 
> 
> -------------------------------------------------------
> This SF.net email is sponsored by: SF.net Giveback Program.
> SourceForge.net hosts over 70,000 Open Source Projects.
> See the people who have HELPED US provide better services:
> Click here: http://sourceforge.net/supporters.php
> _______________________________________________
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> jCh...@li...
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[jCharts-users] (no subject)

[Christian C. <chr...@gr...>]

So I have taken the one example I have working (Pie Chart) and tried to
render it in SVG format. I took the SVG jars from jCharts-0.7.4\lib and
plunked them into Tomcat's shared/lib and now then changed my call from:
    ServletEncoderHelper.encodePNG(chart, context.getResponse());
to:
    ServletEncoderHelper.encodeServlet(chart, context.getResponse());

Kabowie:

error encoding chart:org.apache.batik.svggen.SVGGraphics2DIOException:
Connection reset by peer: socket write error
org.apache.batik.svggen.SVGGraphics2DIOException: Connection reset by peer:
socket write error
        at org.apache.batik.svggen.XmlWriter.writeXml(Unknown Source)
        at org.apache.batik.svggen.SVGGraphics2D.stream(Unknown Source)
        at org.apache.batik.svggen.SVGGraphics2D.stream(Unknown Source)
        at org.jCharts.encoders.SVGEncoder.encode(SVGEncoder.java:103)
        at
org.jCharts.encoders.ServletEncoderHelper.encodeServlet(ServletEncoderHelper
.java:76)

Anyone have any suggestions here? I am running on Win2k, j2sdk1.4.2_01, with
Tomcat 4.1.

tia,
Christian
----------------------------------------------
Christian Cryder
Internet Architect, ATMReports.com
Project Chair, BarracudaMVC - http://barracudamvc.org
----------------------------------------------
"Coffee? I could quit anytime, just not today"

RE: [jCharts-users] getting started

[Christian C. <chr...@gr...>]

For what its worth, I now have a stack trace...

java.lang.NullPointerException
        at org.jCharts.Chart.render(Chart.java:156)
        at
org.jCharts.encoders.BinaryEncoderUtil.render(BinaryEncoderUtil.java:90)
        at org.jCharts.encoders.PNGEncoder.encode(PNGEncoder.java:91)
        at
org.jCharts.encoders.ServletEncoderHelper.encodePNG(ServletEncoderHelper.jav
a:137)

Which traces to this:

    this.graphics2D.setPaint( this.chartProperties.getBackgroundPaint() );

Suggestions?

Christian
----------------------------------------------
Christian Cryder
Internet Architect, ATMReports.com
Project Chair, BarracudaMVC - http://barracudamvc.org
----------------------------------------------
"Coffee? I could quit anytime, just not today"


> -----Original Message-----
> From: jch...@li...
> [mailto:jch...@li...]On Behalf Of Christian
> Cryder
> Sent: Tuesday, October 14, 2003 6:59 PM
> To: jCharts-users
> Subject: [jCharts-users] getting started
>
>
> Hi folks,
>
> I'm obviously doing something stupid, so maybe you can help me...
> Here's my
> code snippet, taken from the samples:
> ----------------------------------
> BarChartProperties barChartProperties = null;
> LegendProperties legendProperties = null;
> AxisProperties axisProperties = null;
> ChartProperties chartProperties = null;
> int width = 550;
> int height = 360;
>
> try {
>     String[] xAxisLabels = {"1995", "1996", "1997", "1998",
> "1999", "2000",
> "2001", "2002", "2003", "2004"};
>     String xAxisTitle = "Years";
>     String yAxisTitle = "Problems";
>     String title = "Micro$oft At Work";
>     IAxisDataSeries dataSeries = new DataSeries( xAxisLabels, xAxisTitle,
> yAxisTitle, title );
>
>     double[][] data = new double[][]{{1500, 6880, 4510, 2600, 1200, 1580,
> 8000, 4555, 4000, 6120}};
>     String[] legendLabels = {"Bugs"};
>     Paint[] paints = new Paint[]{Color.blue.darker()};
>     dataSeries.addIAxisPlotDataSet( new AxisChartDataSet( data,
> legendLabels, paints, ChartType.BAR, barChartProperties ) );
>     AxisChart axisChart = new AxisChart( dataSeries, chartProperties,
> axisProperties, legendProperties, width, height);
>
>     ...
>     ServletEncoderHelper.encodePNG(axisChart, httpServletResponse);
>     ...
>
> catch(ChartDataException chartDataException) {
>     chartDataException.printStackTrace();
> }
> ----------------------------------
>
> Notice that I am _not_ calling renderWithImageMap(),
> getImageMap(), etc the
> way the sample is. Instead, I'm trying to use the chart normally,
> just as an
> image.
>
> The problem occurs within encodePNG()...it basically throws a null pointer
> exception, and because the code was apparently compiled without line
> numbers, I don't get a whole lot for debugging...
>
> Now, I tried a simple pie chart example, and that _did_ work...so
> obviously,
> I am doing something specifically wrong here. Does anyone have
> any ideas? Or
> do I have to go build the project from source in order to get line numbers
> and then track it down from there.
>
> Any suggestions would be greatly appreciated...
>
> tia,
> Christian
> ----------------------------------------------
> Christian Cryder
> Internet Architect, ATMReports.com
> Project Chair, BarracudaMVC - http://barracudamvc.org
> ----------------------------------------------
> "Coffee? I could quit anytime, just not today"
>
>
>
> -------------------------------------------------------
> This SF.net email is sponsored by: SF.net Giveback Program.
> SourceForge.net hosts over 70,000 Open Source Projects.
> See the people who have HELPED US provide better services:
> Click here: http://sourceforge.net/supporters.php
> _______________________________________________
> jCharts-users mailing list
> jCh...@li...
> https://lists.sourceforge.net/lists/listinfo/jcharts-users

[jCharts-users] getting started

[Christian C. <chr...@gr...>]

Hi folks,

I'm obviously doing something stupid, so maybe you can help me... Here's my
code snippet, taken from the samples:
----------------------------------
BarChartProperties barChartProperties = null;
LegendProperties legendProperties = null;
AxisProperties axisProperties = null;
ChartProperties chartProperties = null;
int width = 550;
int height = 360;

try {
    String[] xAxisLabels = {"1995", "1996", "1997", "1998", "1999", "2000",
"2001", "2002", "2003", "2004"};
    String xAxisTitle = "Years";
    String yAxisTitle = "Problems";
    String title = "Micro$oft At Work";
    IAxisDataSeries dataSeries = new DataSeries( xAxisLabels, xAxisTitle,
yAxisTitle, title );

    double[][] data = new double[][]{{1500, 6880, 4510, 2600, 1200, 1580,
8000, 4555, 4000, 6120}};
    String[] legendLabels = {"Bugs"};
    Paint[] paints = new Paint[]{Color.blue.darker()};
    dataSeries.addIAxisPlotDataSet( new AxisChartDataSet( data,
legendLabels, paints, ChartType.BAR, barChartProperties ) );
    AxisChart axisChart = new AxisChart( dataSeries, chartProperties,
axisProperties, legendProperties, width, height);

    ...
    ServletEncoderHelper.encodePNG(axisChart, httpServletResponse);
    ...

catch(ChartDataException chartDataException) {
    chartDataException.printStackTrace();
}
----------------------------------

Notice that I am _not_ calling renderWithImageMap(), getImageMap(), etc the
way the sample is. Instead, I'm trying to use the chart normally, just as an
image.

The problem occurs within encodePNG()...it basically throws a null pointer
exception, and because the code was apparently compiled without line
numbers, I don't get a whole lot for debugging...

Now, I tried a simple pie chart example, and that _did_ work...so obviously,
I am doing something specifically wrong here. Does anyone have any ideas? Or
do I have to go build the project from source in order to get line numbers
and then track it down from there.

Any suggestions would be greatly appreciated...

tia,
Christian
----------------------------------------------
Christian Cryder
Internet Architect, ATMReports.com
Project Chair, BarracudaMVC - http://barracudamvc.org
----------------------------------------------
"Coffee? I could quit anytime, just not today"

Re: [jCharts-users] Line Chart Value centering

[Nathaniel G. A. <nat...@ya...>]

You can increase the edgePadding() on the ChartProperties Object to allow more space between the
edge of the chart and edge of the image.


--- Michael Kroll <mic...@tr...> wrote:
> Hi,
> I'm currently plaing around with the nice JCharts lib, in order to draw
> a line chart.
> Many of the samples provided in the Users Manual, shows line charts,
> where the first x value is
> not plotted on the y axis, and the last value does not end on the end of
> the chart it self.
> There is some space between the y axis and the first value and the last
> value and the right border
> of the chart. resulting all labels are drawed. I tried to create my own
> chart, bit the first point is
> drawn on the y axis and the last point directly on the right border so
> the last label is not drawn
> allthough the labes are set to vertical.
> 
> How can I achive the line to be centered?
> 
> Thanks for your help.
> 
> Kind Regards,
> 
> Michael Kroll
> 
> Co-Author of the SAMS book "J2ME Application Development" and
> Markt+Technik "Java 2 Micro Edition Developer's Guide"
> 
> 
> 
> -------------------------------------------------------
> This SF.net email is sponsored by: SF.net Giveback Program.
> SourceForge.net hosts over 70,000 Open Source Projects.
> See the people who have HELPED US provide better services:
> Click here: http://sourceforge.net/supporters.php
> _______________________________________________
> jCharts-users mailing list
> jCh...@li...
> https://lists.sourceforge.net/lists/listinfo/jcharts-users


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[jCharts-users] Line Chart Value centering

[Michael K. <mic...@tr...>]

Hi,
I'm currently plaing around with the nice JCharts lib, in order to draw
a line chart.
Many of the samples provided in the Users Manual, shows line charts,
where the first x value is
not plotted on the y axis, and the last value does not end on the end of
the chart it self.
There is some space between the y axis and the first value and the last
value and the right border
of the chart. resulting all labels are drawed. I tried to create my own
chart, bit the first point is
drawn on the y axis and the last point directly on the right border so
the last label is not drawn
allthough the labes are set to vertical.

How can I achive the line to be centered?

Thanks for your help.

Kind Regards,

Michael Kroll

Co-Author of the SAMS book "J2ME Application Development" and
Markt+Technik "Java 2 Micro Edition Developer's Guide"

[jCharts-users] RE: Servlet source?

[Christian C. <chr...@gr...>]

Sheesh. Never mind. Wouldn't you know it that no sooner do I ask the
question than I find the answer myself. There they are sitting in the
WEB-INF/classes directory... (not where I would have expected them I guess,
but still, I should have seen it).

My apologies.

Christian
----------------------------------------------
Christian Cryder
Internet Architect, ATMReports.com
Project Chair, BarracudaMVC - http://barracudamvc.org
----------------------------------------------
"Coffee? I could quit anytime, just not today"


> -----Original Message-----
> From: Christian Cryder [mailto:chr...@gr...]
> Sent: Monday, October 13, 2003 1:12 PM
> To: jCharts-users
> Subject: Servlet source?
>
>
> Hey folks,
>
> I just downloaded jCharts 0.7 to evaluate it, and I'm having a
> hard time locating HorizontalBarImageMapServlet.java...the class
> file exists in the demo section, but I can't see to find the
> source anywhere (either in the download or in cvs)
>
> Suggestions?
>
> thx,
> Christian
> ----------------------------------------------
> Christian Cryder
> Internet Architect, ATMReports.com
> Project Chair, BarracudaMVC - http://barracudamvc.org
> ----------------------------------------------
> "Coffee? I could quit anytime, just not today"
>

[jCharts-users] Servlet source?

[Christian C. <chr...@gr...>]

Hey folks,

I just downloaded jCharts 0.7 to evaluate it, and I'm having a hard time
locating HorizontalBarImageMapServlet.java...the class file exists in the
demo section, but I can't see to find the source anywhere (either in the
download or in cvs)

Suggestions?

thx,
Christian
----------------------------------------------
Christian Cryder
Internet Architect, ATMReports.com
Project Chair, BarracudaMVC - http://barracudamvc.org
----------------------------------------------
"Coffee? I could quit anytime, just not today"

Re: [jCharts-users] Framework screen manager

[Nathaniel G. A. <nat...@ya...>]

i dont know what your screen contoller is so I am not sure.

if you wnat to have a chart on a page, simple have an <img src="my.jsp"> or <img
src="myChartServlet"> or <img src="whateverMyInvokerURLis">

Did you take a look at the examples?  If you have a specific question on how the examples work
perhaps I could be of more help.




--- "ROUSSEL, Patrick (euler:sfac)" <Pat...@eu...> wrote:
> I would like insert Jcharts in jsp with framework screen controller, how i
> can do that ?
> 
> regards
> 
> 
> Euler Hermes is the world's premier credit insurer, offering solutions for
> the management of trade receivables, from credit insurance and factoring to
> bonding and guarantees.
> 	------------------------------------
> This e-mail may contain confidential and/or privileged information. If you
> are not the intended recipient or have received this e-mail in error, notify
> the sender immediately and destroy this e-mail. Any unauthorised use,
> copying, disclosure or distribution of the contents of this e-mail is
> strictly forbidden and may be unlawful.
> Read our full e-mail disclaimer statement and monitoring policy
> (http://www.eulerhermes.com/disclaim/email.cfm) before taking any action
> based on the contents of this e-mail.
> 
> 
>   
> 
> 

> ATTACHMENT part 2 image/gif name=framework screen controller.gif



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[jCharts-users] (no subject)

[ROUSSEL, P. (euler:sfac) <Pat...@eu...>]

Framework use jsp and Javabeans for dynamic gui.



Euler Hermes is the world's premier credit insurer, offering solutions for
the management of trade receivables, from credit insurance and factoring to
bonding and guarantees.
	------------------------------------
This e-mail may contain confidential and/or privileged information. If you
are not the intended recipient or have received this e-mail in error, notify
the sender immediately and destroy this e-mail. Any unauthorised use,
copying, disclosure or distribution of the contents of this e-mail is
strictly forbidden and may be unlawful.
Read our full e-mail disclaimer statement and monitoring policy
(http://www.eulerhermes.com/disclaim/email.cfm) before taking any action
based on the contents of this e-mail.

Re: [jCharts-users] Help jcharts

[Nathaniel G. A. <nat...@ya...>]

did you look at the Servlet samples in the demo package?




--- "ROUSSEL, Patrick (euler:sfac)" <Pat...@eu...> wrote:
> Hello,
>  
> I am beginer java, and i would like insert jcharts graphics in jsp, 
> but i use a mvc framework (CGI J2EE FRAMEWORK), my question is how put
> dynamic graphic from 
> framework to jsp with servlet ?
> 
> Do you have some examples
> 
> Regards
>  
>  
> Patrick Roussel
> 
> 
> 
> Euler Hermes is the world's premier credit insurer, offering solutions for
> the management of trade receivables, from credit insurance and factoring to
> bonding and guarantees.
> 	------------------------------------
> This e-mail may contain confidential and/or privileged information. If you
> are not the intended recipient or have received this e-mail in error, notify
> the sender immediately and destroy this e-mail. Any unauthorised use,
> copying, disclosure or distribution of the contents of this e-mail is
> strictly forbidden and may be unlawful.
> Read our full e-mail disclaimer statement and monitoring policy
> (http://www.eulerhermes.com/disclaim/email.cfm) before taking any action
> based on the contents of this e-mail.
> 
> 
> 


__________________________________
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[jCharts-users] Help jcharts

[ROUSSEL, P. (euler:sfac) <Pat...@eu...>]

Hello,
 
I am beginer java, and i would like insert jcharts graphics in jsp, 
but i use a mvc framework (CGI J2EE FRAMEWORK), my question is how put
dynamic graphic from 
framework to jsp with servlet ?

Do you have some examples

Regards
 
 
Patrick Roussel



Euler Hermes is the world's premier credit insurer, offering solutions for
the management of trade receivables, from credit insurance and factoring to
bonding and guarantees.
	------------------------------------
This e-mail may contain confidential and/or privileged information. If you
are not the intended recipient or have received this e-mail in error, notify
the sender immediately and destroy this e-mail. Any unauthorised use,
copying, disclosure or distribution of the contents of this e-mail is
strictly forbidden and may be unlawful.
Read our full e-mail disclaimer statement and monitoring policy
(http://www.eulerhermes.com/disclaim/email.cfm) before taking any action
based on the contents of this e-mail.

[jCharts-users] Re: Help jcharts

[Nathaniel G. A. <nat...@ya...>]

how are you using MVC without Servlets?  Are you using Struts or something?

please address this to the jcharts users mailing list to ensure a timely response.




--- "ROUSSEL, Patrick (euler:sfac)" <Pat...@eu...> wrote:
> Hello,
> 
> I am beginer java, and i would like insert jcharts graphics in jsp, but i
> use a mvc framework, my question is how put dynamic graphic from framework
> to jsp without servlet ?
> 
> It is possible ?
> 
> 
> Regards
> 
> 
> Patrick Roussel
>  
> 
> 
> Euler Hermes is the world's premier credit insurer, offering solutions for
> the management of trade receivables, from credit insurance and factoring to
> bonding and guarantees.
> 	------------------------------------
> This e-mail may contain confidential and/or privileged information. If you
> are not the intended recipient or have received this e-mail in error, notify
> the sender immediately and destroy this e-mail. Any unauthorised use,
> copying, disclosure or distribution of the contents of this e-mail is
> strictly forbidden and may be unlawful.
> Read our full e-mail disclaimer statement and monitoring policy
> (http://www.eulerhermes.com/disclaim/email.cfm) before taking any action
> based on the contents of this e-mail.
> 
> 
> 


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Re: [jCharts-users] Installation

[Nathaniel G. A. <nat...@ya...>]

Take a look at the example Servlet code for how to generate the chart in a Servlet.


--- Michael Kottmann <mko...@ya...> wrote:
> I fixed that problem and it works great, but I have
> another question.  I'm fairly new to jsp's and
> servlet's and I would like to integrate the two, but
> am having a tough time with it.  I'm currently using
> the setAttribute method for each of the properties
> (i.e. width, height, dataSet,...) and then casting
> them when I call them in the jsp and creating the
> chart.  Is there an easier way to do this?  I'm sure I
> could just create the image in the servlet and then
> pass it to the jsp, but I don't know how.  Any help
> that you can provide would be appreciated. 
> 
> Thanks,
>     Mike
> 
> --- "Nathaniel G. Auvil" <nat...@ya...>
> wrote:
> > 
> > Did you place the demo war in your servlet
> > containers "webapps" folder?  What Servlet Container
> > are you using?
> > 
> > 
> > 
> > --- Michael Kottmann <mko...@ya...> wrote:
> > > I recently downloaded and unzipped the jcharts
> > api. 
> > > I'm currently trying to run one of the demo
> > servlets
> > > and I'm getting an error saying that it can't find
> > any
> > > of the imports.  I set my classpath to look at the
> > > jcharts-0.7.4.jar file, but it still isn't
> > working. 
> > > Is there anything else that I need to do?
> > > 
> > > Thanks,
> > >    Mike
> > > 
> > > __________________________________
> > > Do you Yahoo!?
> > > The New Yahoo! Shopping - with improved product
> > search
> > > http://shopping.yahoo.com
> > > 
> > > 
> > >
> >
> -------------------------------------------------------
> > > This sf.net email is sponsored by:ThinkGeek
> > > Welcome to geek heaven.
> > > http://thinkgeek.com/sf
> > > _______________________________________________
> > > jCharts-users mailing list
> > > jCh...@li...
> > >
> >
> https://lists.sourceforge.net/lists/listinfo/jcharts-users
> > 
> > 
> > __________________________________
> > Do you Yahoo!?
> > The New Yahoo! Shopping - with improved product
> > search
> > http://shopping.yahoo.com
> > 
> > 
> >
> -------------------------------------------------------
> > This sf.net email is sponsored by:ThinkGeek
> > Welcome to geek heaven.
> > http://thinkgeek.com/sf
> > _______________________________________________
> > jCharts-users mailing list
> > jCh...@li...
> >
> https://lists.sourceforge.net/lists/listinfo/jcharts-users
> 
> 
> __________________________________
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> The New Yahoo! Shopping - with improved product search
> http://shopping.yahoo.com
> 
> 
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
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> _______________________________________________
> jCharts-users mailing list
> jCh...@li...
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Re: [jCharts-users] Installation

[Michael K. <mko...@ya...>]

I fixed that problem and it works great, but I have
another question.  I'm fairly new to jsp's and
servlet's and I would like to integrate the two, but
am having a tough time with it.  I'm currently using
the setAttribute method for each of the properties
(i.e. width, height, dataSet,...) and then casting
them when I call them in the jsp and creating the
chart.  Is there an easier way to do this?  I'm sure I
could just create the image in the servlet and then
pass it to the jsp, but I don't know how.  Any help
that you can provide would be appreciated. 

Thanks,
    Mike

--- "Nathaniel G. Auvil" <nat...@ya...>
wrote:
> 
> Did you place the demo war in your servlet
> containers "webapps" folder?  What Servlet Container
> are you using?
> 
> 
> 
> --- Michael Kottmann <mko...@ya...> wrote:
> > I recently downloaded and unzipped the jcharts
> api. 
> > I'm currently trying to run one of the demo
> servlets
> > and I'm getting an error saying that it can't find
> any
> > of the imports.  I set my classpath to look at the
> > jcharts-0.7.4.jar file, but it still isn't
> working. 
> > Is there anything else that I need to do?
> > 
> > Thanks,
> >    Mike
> > 
> > __________________________________
> > Do you Yahoo!?
> > The New Yahoo! Shopping - with improved product
> search
> > http://shopping.yahoo.com
> > 
> > 
> >
>
-------------------------------------------------------
> > This sf.net email is sponsored by:ThinkGeek
> > Welcome to geek heaven.
> > http://thinkgeek.com/sf
> > _______________________________________________
> > jCharts-users mailing list
> > jCh...@li...
> >
>
https://lists.sourceforge.net/lists/listinfo/jcharts-users
> 
> 
> __________________________________
> Do you Yahoo!?
> The New Yahoo! Shopping - with improved product
> search
> http://shopping.yahoo.com
> 
> 
>
-------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> jCharts-users mailing list
> jCh...@li...
>
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Re: [jCharts-users] Installation

[Nathaniel G. A. <nat...@ya...>]

Did you place the demo war in your servlet containers "webapps" folder?  What Servlet Container
are you using?



--- Michael Kottmann <mko...@ya...> wrote:
> I recently downloaded and unzipped the jcharts api. 
> I'm currently trying to run one of the demo servlets
> and I'm getting an error saying that it can't find any
> of the imports.  I set my classpath to look at the
> jcharts-0.7.4.jar file, but it still isn't working. 
> Is there anything else that I need to do?
> 
> Thanks,
>    Mike
> 
> __________________________________
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[jCharts-users] Installation

[Michael K. <mko...@ya...>]

I recently downloaded and unzipped the jcharts api. 
I'm currently trying to run one of the demo servlets
and I'm getting an error saying that it can't find any
of the imports.  I set my classpath to look at the
jcharts-0.7.4.jar file, but it still isn't working. 
Is there anything else that I need to do?

Thanks,
   Mike

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[jCharts-users] Re: JChart

[Nathaniel G. A. <nat...@ya...>]

simply increase the width of the image.

Please do not address me directly as I might not be available; send questions to the user list for
the best response rate.



--- HappyManocha Manocha <hap...@ya...> wrote:
> Hello Sir,
> i m having one doubt in axis chart.
> i want to increase the width for x-Axis .
> how can i do that ..
> can u plaese tell me
> Thanks in advance
> Regards
> Happy Manocha
> 
> 
> ---------------------------------
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Re: [jCharts-users] control of the x-axis labels

[Sven W. <sve...@ex...>]

 --- On Mon 09/22, Nathaniel G. Auvil < nat...@ya... > wrote:

From: Nathaniel G. Auvil [mailto: nat...@ya...]

To: jch...@li...

Date: Mon, 22 Sep 2003 12:44:17 -0700 (PDT)

Subject: Re: [jCharts-users] control of the x-axis labels



Thanx for the explanation.

I just asked if there is solution. It has really no urgency at all! So don't waste your time on that.



Sven





<br>Alls the code does is:<br><br>1) find the widest x-axis label<br>2) multiply that by the number of labels to see if they can all fit<br>3) if not, see if every 2nd, 3rd, 4th, ... will fit until it finds one that does.<br><br><br>I suppose we could expose an interface for this so you could alter the algorithm.<br><br><br><br>--- Sven Weber <sve...@ex...> wrote:<br>> <br>> <br>> <br>> thanx for the answer.<br>> <br>> I read that other thread about time series, but my problem has basically nothing to do with time<br>> series.<br>> <br>> The basic problems is this:<br>> <br>> You have more x-axis values than jcharts can print. So jcharts has to choose (with some<br>> algorithm) which labels it should print and which not.<br>> <br>> But in some cases e.g. in time series certain labels make a lot more sense to the human observer<br>>  than others (e.g the start of each day).<br>> <br>> But it's not limited to time series. Let's say you have x-values from 0-873. Then a human viewer<br>> would maybe prefer labels of 0, 100, 200 ... 800, 900 and not some mathematically correct but<br>> "odd" numbers like 113, 226...  <br>> <br>> And I looked for a possibility to control the labels that the jcharts algorithm should choose<br>> for printing.<br>> <br>> <br>> <br>> Sven<br>> <br>> <br>> <br>> <br>> <br>> <br>> <br>>  --- On Sun 09/21, Nathaniel G. Auvil < nat...@ya... > wrote:<br>> <br>> From: Nathaniel G. Auvil [mailto: nat...@ya...]<br>> <br>> To: jch...@li...<br>> <br>> Date: Sun, 21 Sep 2003 19:55:43 -0700 (PDT)<br>> <br>> Subject: Re: [jCharts-users] control of the x-axis labels<br>> <br>> <br>> <br>> <br>Time Series charts are not available in the current release of jCharts.  There appears to be<br>> some<br>demand for this type of chart as of late, so I am bumping it up on the priority list for<br>> the next<br>release.<br><br><br><br>--- Sven Weber <sve...@ex...> wrote:<br>> <br>><br>> Hi,<br>> <br>> <br>> <br>> and first of all hello from a jcharts newbie.<br>> <br>> <br>> <br>><br>> I worked thru the  jcharts examples and find jCharts is really easy to use, so thanx. :-)<br>><br>> <br>> Now I have my first question:<br>> <br>> I need to create time series charts. The data<br>> usually consists of one value per 15 minutes. The<br>> charts should show a day, week or month<br>> of the measurement data.  <br>> <br>> So I have 96 values per day, 576 value per week and around<br>> 2900 values per months.<br>> <br>> Now I can create a string from the time stamp of the value<br>> and add that string to the x-axis<br>> labels, but so far I found no way to let jcharts know,<br>> which x-axis labels should be printed and<br>> which not. E.g. if I create a "day chart" then it<br>> would be ok to have a label printed at every<br>> full hour and maybe every half hour. If it's a<br>> "week chart" then it would be ok to see time<br>> stamps from 12pm, 6am, 12am and 6pm of each<br>> day, but not something like 3.45pm or 5.15am.<br>> <br>> So the basic problem is that I have too<br>> much values so jcharts can not print each x-axis label,<br>> but I found no way to tell jcharts<br>> which labels should be printed and which not!<br>> <br>> Is there a solution for my<br>> problem?<br>> <br>> <br>> <br>> CU<br>> <br>> 	Sven<br>> <br>> <br>> <br>> <br>> <br>> <br>><br>> <br>> _______________________________________________<br>> Join Excite! -<br>> http://www.excite.com<br>> The most personalized portal on the Web!<br>> <br>> <br>><br>> -------------------------------------------------------<br>> This sf.net email is sponsored<br>> by:ThinkGeek<br>> Welcome to geek heaven.<br>> http://thinkgeek.com/sf<br>><br>> _______________________________________________<br>> jCharts-users mailing list<br>><br>> jCh...@li...<br>><br>><br>https://lists.sourceforge.net/lists/listinfo/jcharts-users<br><br><br>=====<br>http://nathaniel-auvil.blog-city.com/<br><br>__________________________________<br>Do<br>> you Yahoo!?<br>Yahoo! SiteBuilder - Free, easy-to-use web site
  design<br>><br>software<br>http://sitebuilder.yahoo.com<br><br><br>-------------------------------------------------------<br>This<br>> sf.net email is sponsored by:ThinkGeek<br>Welcome to geek<br>><br>heaven.<br>http://thinkgeek.com/sf<br>_______________________________________________<br>jCharts-users<br>> mailing<br>><br>list<br>jCh...@li...<br>https://lists.sourceforge.net/lists/listinfo/jcharts-users<br><br>> <br>> _______________________________________________<br>> Join Excite! - http://www.excite.com<br>> The most personalized portal on the Web!<br>> <br>> <br>> -------------------------------------------------------<br>> This sf.net email is sponsored by:ThinkGeek<br>> Welcome to geek heaven.<br>> http://thinkgeek.com/sf<br>> _______________________________________________<br>> jCharts-users mailing list<br>> jCh...@li...<br>> https://lists.sourceforge.net/lists/listinfo/jcharts-users<br><br><br>=====<br>http://nathaniel-auvil.blog-city.com/<br><br>__________________________________<br>Do you Yahoo!?<br>Yahoo! SiteBuilder - Free, easy-to-use web site design software<br>http://sitebuilder.yahoo.com<br><br><br>-------------------------------------------------------<br>This sf.net email is sponsored by:ThinkGeek<br>Welcome to geek heaven.<br>http://thinkgeek.com/sf<br>_______________________________________________<br>jCharts-users mailing list<br>jCh...@li...<br>https://lists.sourceforge.net/lists/listinfo/jcharts-users<br>

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Re: [jCharts-users] control of the x-axis labels

[Nathaniel G. A. <nat...@ya...>]

Alls the code does is:

1) find the widest x-axis label
2) multiply that by the number of labels to see if they can all fit
3) if not, see if every 2nd, 3rd, 4th, ... will fit until it finds one that does.


I suppose we could expose an interface for this so you could alter the algorithm.



--- Sven Weber <sve...@ex...> wrote:
> 
> 
> 
> thanx for the answer.
> 
> I read that other thread about time series, but my problem has basically nothing to do with time
> series.
> 
> The basic problems is this:
> 
> You have more x-axis values than jcharts can print. So jcharts has to choose (with some
> algorithm) which labels it should print and which not.
> 
> But in some cases e.g. in time series certain labels make a lot more sense to the human observer
>  than others (e.g the start of each day).
> 
> But it's not limited to time series. Let's say you have x-values from 0-873. Then a human viewer
> would maybe prefer labels of 0, 100, 200 ... 800, 900 and not some mathematically correct but
> "odd" numbers like 113, 226...  
> 
> And I looked for a possibility to control the labels that the jcharts algorithm should choose
> for printing.
> 
> 
> 
> Sven
> 
> 
> 
> 
> 
> 
> 
>  --- On Sun 09/21, Nathaniel G. Auvil < nat...@ya... > wrote:
> 
> From: Nathaniel G. Auvil [mailto: nat...@ya...]
> 
> To: jch...@li...
> 
> Date: Sun, 21 Sep 2003 19:55:43 -0700 (PDT)
> 
> Subject: Re: [jCharts-users] control of the x-axis labels
> 
> 
> 
> <br>Time Series charts are not available in the current release of jCharts.  There appears to be
> some<br>demand for this type of chart as of late, so I am bumping it up on the priority list for
> the next<br>release.<br><br><br><br>--- Sven Weber <sve...@ex...> wrote:<br>> <br>>
> Hi,<br>> <br>> <br>> <br>> and first of all hello from a jcharts newbie.<br>> <br>> <br>> <br>>
> I worked thru the  jcharts examples and find jCharts is really easy to use, so thanx. :-)<br>>
> <br>> Now I have my first question:<br>> <br>> I need to create time series charts. The data
> usually consists of one value per 15 minutes. The<br>> charts should show a day, week or month
> of the measurement data.  <br>> <br>> So I have 96 values per day, 576 value per week and around
> 2900 values per months.<br>> <br>> Now I can create a string from the time stamp of the value
> and add that string to the x-axis<br>> labels, but so far I found no way to let jcharts know,
> which x-axis labels should be printed and<br>> which not. E.g. if I create a "day chart" then it
> would be ok to have a label printed at every<br>> full hour and maybe every half hour. If it's a
> "week chart" then it would be ok to see time<br>> stamps from 12pm, 6am, 12am and 6pm of each
> day, but not something like 3.45pm or 5.15am.<br>> <br>> So the basic problem is that I have too
> much values so jcharts can not print each x-axis label,<br>> but I found no way to tell jcharts
> which labels should be printed and which not!<br>> <br>> Is there a solution for my
> problem?<br>> <br>> <br>> <br>> CU<br>> <br>> 	Sven<br>> <br>> <br>> <br>> <br>> <br>> <br>>
> <br>> _______________________________________________<br>> Join Excite! -
> http://www.excite.com<br>> The most personalized portal on the Web!<br>> <br>> <br>>
> -------------------------------------------------------<br>> This sf.net email is sponsored
> by:ThinkGeek<br>> Welcome to geek heaven.<br>> http://thinkgeek.com/sf<br>>
> _______________________________________________<br>> jCharts-users mailing list<br>>
> jCh...@li...<br>>
>
https://lists.sourceforge.net/lists/listinfo/jcharts-users<br><br><br>=====<br>http://nathaniel-auvil.blog-city.com/<br><br>__________________________________<br>Do
> you Yahoo!?<br>Yahoo! SiteBuilder - Free, easy-to-use web site design
>
software<br>http://sitebuilder.yahoo.com<br><br><br>-------------------------------------------------------<br>This
> sf.net email is sponsored by:ThinkGeek<br>Welcome to geek
>
heaven.<br>http://thinkgeek.com/sf<br>_______________________________________________<br>jCharts-users
> mailing
>
list<br>jCh...@li...<br>https://lists.sourceforge.net/lists/listinfo/jcharts-users<br>
> 
> _______________________________________________
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> The most personalized portal on the Web!
> 
> 
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> _______________________________________________
> jCharts-users mailing list
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> https://lists.sourceforge.net/lists/listinfo/jcharts-users


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Re: [jCharts-users] control of the x-axis labels

[Sven W. <sve...@ex...>]

thanx for the answer.

I read that other thread about time series, but my problem has basically nothing to do with time series.

The basic problems is this:

You have more x-axis values than jcharts can print. So jcharts has to choose (with some algorithm) which labels it should print and which not.

But in some cases e.g. in time series certain labels make a lot more sense to the human observer  than others (e.g the start of each day).

But it's not limited to time series. Let's say you have x-values from 0-873. Then a human viewer would maybe prefer labels of 0, 100, 200 ... 800, 900 and not some mathematically correct but "odd" numbers like 113, 226...  

And I looked for a possibility to control the labels that the jcharts algorithm should choose for printing.



Sven







 --- On Sun 09/21, Nathaniel G. Auvil < nat...@ya... > wrote:

From: Nathaniel G. Auvil [mailto: nat...@ya...]

To: jch...@li...

Date: Sun, 21 Sep 2003 19:55:43 -0700 (PDT)

Subject: Re: [jCharts-users] control of the x-axis labels



<br>Time Series charts are not available in the current release of jCharts.  There appears to be some<br>demand for this type of chart as of late, so I am bumping it up on the priority list for the next<br>release.<br><br><br><br>--- Sven Weber <sve...@ex...> wrote:<br>> <br>> Hi,<br>> <br>> <br>> <br>> and first of all hello from a jcharts newbie.<br>> <br>> <br>> <br>> I worked thru the  jcharts examples and find jCharts is really easy to use, so thanx. :-)<br>> <br>> Now I have my first question:<br>> <br>> I need to create time series charts. The data usually consists of one value per 15 minutes. The<br>> charts should show a day, week or month of the measurement data.  <br>> <br>> So I have 96 values per day, 576 value per week and around 2900 values per months.<br>> <br>> Now I can create a string from the time stamp of the value and add that string to the x-axis<br>> labels, but so far I found no way to let jcharts know, which x-axis labels should be printed and<br>> which not. E.g. if I create a "day chart" then it would be ok to have a label printed at every<br>> full hour and maybe every half hour. If it's a "week chart" then it would be ok to see time<br>> stamps from 12pm, 6am, 12am and 6pm of each day, but not something like 3.45pm or 5.15am.<br>> <br>> So the basic problem is that I have too much values so jcharts can not print each x-axis label,<br>> but I found no way to tell jcharts which labels should be printed and which not!<br>> <br>> Is there a solution for my problem?<br>> <br>> <br>> <br>> CU<br>> <br>> 	Sven<br>> <br>> <br>> <br>> <br>> <br>> <br>> <br>> _______________________________________________<br>> Join Excite! - http://www.excite.com<br>> The most personalized portal on the Web!<br>> <br>> <br>> -------------------------------------------------------<br>> This sf.net email is sponsored by:ThinkGeek<br>> Welcome to geek heaven.<br>> http://thinkgeek.com/sf<br>> _______________________________________________<br>> jCharts-users mailing list<br>> jCh...@li...<br>> https://lists.sourceforge.net/lists/listinfo/jcharts-users<br><br><br>=====<br>http://nathaniel-auvil.blog-city.com/<br><br>__________________________________<br>Do you Yahoo!?<br>Yahoo! SiteBuilder - Free, easy-to-use web site design software<br>http://sitebuilder.yahoo.com<br><br><br>-------------------------------------------------------<br>This sf.net email is sponsored by:ThinkGeek<br>Welcome to geek heaven.<br>http://thinkgeek.com/sf<br>_______________________________________________<br>jCharts-users mailing list<br>jCh...@li...<br>https://lists.sourceforge.net/lists/listinfo/jcharts-users<br>

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Re: [jCharts-users] Specifying range for X Axis

[Nathaniel G. A. <nat...@ya...>]

Yes, you do it the same way you would for the y-axis scale.

http://jcharts.sourceforge.net/usersGuide/0.7/axisCharts.html#numberOfItemsOnYAxis


--- "Lapinski, Michael (Research)" <lap...@cr...> wrote:
> Hello,
> 
>   Is there a way to specify a range for the X Axis. For Exampel I 
> have data with values that range from 1-10 but id like the X axis 
> to range from 1-20. Is this possible?
> 
> -thank you
> -mtl
> 
> 
> 
> 
> --------------------------------------------------
> Michael Lapinski
> Computer Scientist
> GE Research
> 
> 
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> jCharts-users mailing list
> jCh...@li...
> https://lists.sourceforge.net/lists/listinfo/jcharts-users


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[jCharts-users] Specifying range for X Axis

[Lapinski, M. (Research) <lap...@cr...>]

Hello,

  Is there a way to specify a range for the X Axis. For Exampel I 
have data with values that range from 1-10 but id like the X axis 
to range from 1-20. Is this possible?

-thank you
-mtl




--------------------------------------------------
Michael Lapinski
Computer Scientist
GE Research

Re: [jCharts-users] control of the x-axis labels

[Nathaniel G. A. <nat...@ya...>]

Time Series charts are not available in the current release of jCharts.  There appears to be some
demand for this type of chart as of late, so I am bumping it up on the priority list for the next
release.



--- Sven Weber <sve...@ex...> wrote:
> 
> Hi,
> 
> 
> 
> and first of all hello from a jcharts newbie.
> 
> 
> 
> I worked thru the  jcharts examples and find jCharts is really easy to use, so thanx. :-)
> 
> Now I have my first question:
> 
> I need to create time series charts. The data usually consists of one value per 15 minutes. The
> charts should show a day, week or month of the measurement data.  
> 
> So I have 96 values per day, 576 value per week and around 2900 values per months.
> 
> Now I can create a string from the time stamp of the value and add that string to the x-axis
> labels, but so far I found no way to let jcharts know, which x-axis labels should be printed and
> which not. E.g. if I create a "day chart" then it would be ok to have a label printed at every
> full hour and maybe every half hour. If it's a "week chart" then it would be ok to see time
> stamps from 12pm, 6am, 12am and 6pm of each day, but not something like 3.45pm or 5.15am.
> 
> So the basic problem is that I have too much values so jcharts can not print each x-axis label,
> but I found no way to tell jcharts which labels should be printed and which not!
> 
> Is there a solution for my problem?
> 
> 
> 
> CU
> 
> 	Sven
> 
> 
> 
> 
> 
> 
> 
> _______________________________________________
> Join Excite! - http://www.excite.com
> The most personalized portal on the Web!
> 
> 
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> jCharts-users mailing list
> jCh...@li...
> https://lists.sourceforge.net/lists/listinfo/jcharts-users


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[jCharts-users] control of the x-axis labels

[Sven W. <sve...@ex...>]

Hi,



and first of all hello from a jcharts newbie.



I worked thru the  jcharts examples and find jCharts is really easy to use, so thanx. :-)

Now I have my first question:

I need to create time series charts. The data usually consists of one value per 15 minutes. The charts should show a day, week or month of the measurement data.  

So I have 96 values per day, 576 value per week and around 2900 values per months.

Now I can create a string from the time stamp of the value and add that string to the x-axis labels, but so far I found no way to let jcharts know, which x-axis labels should be printed and which not. E.g. if I create a "day chart" then it would be ok to have a label printed at every full hour and maybe every half hour. If it's a "week chart" then it would be ok to see time stamps from 12pm, 6am, 12am and 6pm of each day, but not something like 3.45pm or 5.15am.

So the basic problem is that I have too much values so jcharts can not print each x-axis label, but I found no way to tell jcharts which labels should be printed and which not!

Is there a solution for my problem?



CU

	Sven







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