Dynamic Pie Charts
Hi all,
I have found (in the jdc) that it seems to be difficult to create a dynamic (data coming from db) Pie chart using JSP page. I did a beans that create basic Bar charts. Is there any way to do the same for a pie charts ? (without commercial solutions).
I'll prefer a Beans instead of a applet, but at least this solutions can be take.
Thanks a lot
STF
HiLearningSTF,
Here I am giving you sample code below:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>Pie Bean</title>
</head>
<body>
<h2>Pie Chart Bean Example</h2>
<%@ page import="com.sas.graphics.chart.*" %>
<%@ include file="Sampledata.inc" %>
<jsp:useBean id="pie" class="com.sas.servlet.beans.graphics.html.Pie"
scope="session">
</jsp:useBean>
<%
// Set the model
pie.setModelInterface(dataModel);
pie.setTitle("Product Sales");
pie.setPieLabelType( com.sas.graphics.chart.PieLabelTypes.SECTOR_WEIGHT );
DiscreteColorLegendStyle discreteLegendStyle = pie.getSectorLegendStyle();
discreteLegendStyle.setColorScheme(com.sas.graphics.chart.ColorSchemeTypes.INDUSTRY );
discreteLegendStyle.setVisible( false );
PolarLegendStyle polarLegendStyle = pie.getWeightLegendStyle();
polarLegendStyle.setStartAngle( 180.0D );
// Output the Pie
pie.setHeight(300);
pie.setWidth(400);
pie.setRequest(request);
pie.write(out);
%>
</body>
</html>
I hope this will help you out.
Regards,
TirumalaRao.
Developer TechnicalSupport,
sunMicroSystem,India.
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import java.util.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.awt.image.*;
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for(int i=0;i<vectorsize;i++){
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g2d.setPaint(new Color(Rnewcolor,Gnewcolor,Bnewcolor));
g2d.fill(new Arc2D.Double( 240, 200, 400, 400, sumAngle,DivideAngle, Arc2D.PIE ) );
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g2d.fill(new Rectangle2D.Double(i*70,50,30,30));
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g2d.drawString(contractor,75,i*42);
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pie(g);
} -
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loSSeries.bindValue(loDynAttr2IntInfo);
//create the category and bind the string attribute to it
IWDCategory loCategory = (IWDCategory)view.createElement(IWDCategory.class,"Category1");
loCategory.bindDescription(loDynAttr1StrInfo);
//add series and category
loGraphics.addSeries(loSSeries);
loGraphics.setCategory(loCategory);
//I assume that there is a transperent container already created design time to put the graphics there
//container with id BG_CONTAINER
IWDTransparentContainer loContainer = (IWDTransparentContainer)view.getElement("BG_CONTAINER");
//add the graphics
loContainer.addChild(loGraphics);
If this is the type of graphics you need then you must simply do a for cycle and supply the graphics with the right node elements and you are ready.
Best regards,
Anton -
How to add dynamic visibility between pie chart and 2 bar charts?
I have 3 section in pie chart. If i click on one section according bar chart have to appear...
Hi Riaz,
your subject-line and query seems to be different, please elaborate me the question properly so that i can explain you in clear in a single reply.
For the query you have posted bar chart based on pie selection, if i understood your question clear. Goto File menu-->samples-->user guide samples-->Chart-Insertion will show the same what you have asked.
Hope this Helps!!!
--SumanT -
Hi,
I am trying to build a page that displays an SVG pie chart with the following query:
SELECT '', "&P4_SHOW.", count(*)
FROM "MY_TABLE"
GROUP BY null, "&P4_SHOW."
ORDER BY "&P4_SHOW."
where P4_SHOW is a list of columns of the table 'MY_TABLE'.
However, I get the following error when I try to save the chart definition:
Query cannot be parsed, please check the syntax of your query. (ORA-01741: illegal zero-length identifier)
Thanks for your help.you're unfortunately not going to be able to build your svg chart off that query in the current build of html db. to explain the issue real quickly, P4_SHOW doesn't have state while you're working in the development environment. because of that, your query's being run as something like...
SELECT '', "", count(*)
FROM "MY_TABLE"
GROUP BY null, ""
ORDER BY ""
...and you'll get that same "illegal zero-length identifier" in sqlplus if you try to run it there. we'll hopefully be able address this issue in a post-production release of the tool, but the best work-around for now would be for you to add multiple svg regions to your page. have one region per column of MY_TABLE and conditionally display the appropriate region based on P4_SHOW.
hope this helps,
raj -
Pie chart legend showing digit "1" when we set "ignore blank cells"property
All,
We have pie chart in Xcelsius 2008 that shows the data with legend value and we have also set the ignore blank cells property to ignore the blank value from column. but once we set this property, it displays the digit "1" in the legend when there is no data.
we are expecting that nothing should be displayed in pie chart legend when there is no data for the pie chart.
Thanks,
Sourabhhi Sourabh,
I could replicate your scenario.
Workaround is to create a duplicate of this chart. Go to properties of this new chart.
Go to Appearance ->
Uncheck
- Legend
- Mouse-over values
- Data Labels
for this chart.
Write a logic in excel using 'IF' to verify if your data is empty.
Use 'Dynamic Visibility' feature to display this chart only when your data is empty.
Display your original chart if your data is not empty.
Regards,
Vamsee -
Pie Chart Legend - colors and sorting value
<p>Hi,</p><p>I have a pie chart with around 20 'segments' representing names of people - so it looks like several of them have the same color.</p><p>So my first question is do the standard 12 colors repeat after 12 segments have been 'defined' - can this be extended with custom colors?. I know you can set colors for specific values but as the list is dynamic, I can't do that. </p><p>I also have a legend defined which shows the person's name and then the value - either a percentage or a count etc. From top to bottom, the legend lists the entries alphabetically by the person's name - however, it's not always easy to tell which name is associated with which 'segment' and using labels is not an option as they are too long and there are too many of them to be readable<br /></p><p>So what I would like to do is have the legend displayed in numerical size order - e.g. person with largest % is at the top, smallest % is at the bottom etc.</p><p>I've been looking at the Chart Expert, CR Help and the forums but have not seen an answer to either question - I'm hoping someone can tell me if it's possible or not (and if so, how do I do it!).</p><p>Thanks <br /></p>
Hi,
If you go to the Chart Expert, on the data tab, you can choose the Top N option. From within there you can get your legend sorted based on the highest or lowest percentage. You can also group information so that you only see the top 5 or lowest 10 or whatever you want.
Also when I create a pie graph based on 20 plus pieces of data it isn't resusing the colors, but they are somewhat similar. I usually do a group of the top 10 or so, then have an others category for situations like this.Â
Rody -
Pie chart labels prepended with "@" symbol
Hello
I have a pie chart and it has two values, each of which is a formula
When I view the Pie chart the Data labels and legend are prefixed with @
The Data Value formula name is Open Online, so the data lable on the Pie is @Open Online, as it the legend
It does not look great on the chart
is there any way to use a forumla as a data value in a chart, but to NOT have the @ symbol as part of the name?
This chart is developed in Crystal Reports 2008 SP2
I am using a Pie Chart at the moment, the Pie has 1 On Change Of and 2 Data Values
Best regards
PatrickI believe if you select the label object on the design page and right-click, you will have the option to edit the label properties.
Fuskie
Who notes you can hard code a value but not alter any dynamic values...
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