Cartesian Chart DataTips

Hi All,
I haven't had any trouble formatting the datatips in a
PlotChart using the dataTipFunction but it is a requirement for me
to have them showing all the time without mousing over them. The
mouseSensitivity can be set to a large number, however, the mouse
is still the trigger. Is there any thing like a label such as in
the PieChart for Cartesian Charts?
Thanks,
Bob I.

Get the chart working first with static data whose format
matches what you will be getting from the server.
Tracy

Similar Messages

How to give individual horizontal axis label to two stacked bar of cartesian chart

I have a cartesian chart showing no. of xyz and no.of abc for a particular period of time. i.e. two bars corresponding to xyz & abc for Jan, and then again two bars corresponding to xyz & abc for Feb, and so on. I have used label function to give label to horizontal axis such that labels look like "xyz abc (nextLine) Jan" ,"xyz abc (nextLine) Feb".
But the issue is that the label is not centre alligned to the respective bars, i.e. xyz is not coming under xyz bar and abc is not coming under abc bar. the whole label's alignment is somewhere in between the two bars on x-axis. And i want to have label centre alligned to their respective bars, i.e 'xyz' should be centre alligned to 'xyz' bar, and 'abc' label should be centre alligned to 'abc' bar, along with the time period value. I have tried giving space in between "xyz" and "abc" but the problem occurs when data varies.They again don't seems centre aligned. I want x-axis label for each bar along with the categoryaxis's category field.
So,is there any way to achieve such functionality??

Could you post a screenshot of your current output and maybe a mockup of the desired output?

Customizing Chart DataTip position

Hi,
I am using Flex 3 Column Chart with Stacked property
I use two column series
On mouseOver the column bars, the dataTip appears near the bar.
I use a dataTip function to provide the contents for the DataTip & it might take 4 - 5 lines.
I would like to have the DataTip box always appear on the top left corner of the chart.
So, I create a DataTip renderer as shown below by shifting the DataTip to x:20 & y:15
import flash.display.*;
import flash.display.Graphics;
import mx.charts.chartClasses.DataTip;
public class MyDataTip extends DataTip
     public function MyDataTip()
          super();
     override protected function createChildren():void
          super.createChildren();
     override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void
          super.updateDisplayList(unscaledWidth, unscaledHeight);
          this.x = 20;
            this.y = 15;
I apply this to the chart like (during application creationComplete() event:
myChart.setStyle("dataTipRenderer",MyDataTip);
But even when I do this, I do get a flickering when I mouseOver the chart bar and the DataTip box appears near the bar, then in the top left position
and When I mouseOver the bars the display refresh problem takes place
How to override this so that the box always appear the top left corner without any flickering
- Sen

Since DataTip inherits from UIComponent, you should use the move method to position it. Also use the setActualSize method in the override.
super.updateDisplayList(unscaledWidth, unscaledHeight);
this.move(20, 15);
this.setActualSize(unscaledWidth, unscaledHeight);

Axis titles don't display on cartesian chart

I use Adobe Flex Builder 3 to create charts for use in a
larger web application. Since moving from Flex Builder 2 to Flex
Builder 3, the axis titles are no longer being displayed.
In my mx:Application, I declare an mx:CartesianChart. I
dynamically add ColumnSeries to a ColumnSet based on the contents
of an XML file loaded using a URLRequest. I then add the ColumnSet
as the only element of the chart.series Array. The rest of the
chart (including the legend) displays correctly.
The axes are explicitly defined as part of the
mx:CartesianChart:
<mx:CartesianChart left="{legend.width}" top="30"
right="0" bottom="0" id="chart" dataProvider="{xmlDoc.elements()}"
showDataTips="true" dataTipFunction="formatDataTips">
<mx:verticalAxis>
<mx:LinearAxis id="vAx" autoAdjust="true" title="Dollars"
labelFunction="formatVerticalLabel"/>
</mx:verticalAxis>
<mx:horizontalAxis>
<mx:CategoryAxis id="hAx" categoryField="Year"
title="Year"/>
</mx:horizontalAxis>
<mx:horizontalAxisRenderers>
<mx:AxisRenderer axis="{hAx}" labelRotation="-60"/>
</mx:horizontalAxisRenderers>
</mx:CartesianChart>
Thanks in advance for your help.

I've isolated the issue, but I'm not sure if it's a bug or if
something I'm doing wrong. The following simplified version of my
chart application doesn't display the axis titles:
[code]
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute">
<mx:Legend dataProvider="{chart}" left="0" top="25"
id="legend"/>
<mx:CartesianChart left="{legend.width}" top="30"
right="0" bottom="0" id="chart">
<mx:verticalAxis>
<mx:LinearAxis title="Dollars"/>
</mx:verticalAxis>
<mx:horizontalAxis>
<mx:CategoryAxis title="Year"/>
</mx:horizontalAxis>
</mx:CartesianChart>
</mx:Application>
[/code]
The following version does:
[code]
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute">
<mx:Legend dataProvider="{chart}" left="0" top="25"
id="legend"/>
<mx:CartesianChart left="{0}" top="30" right="0"
bottom="0" id="chart">
<mx:verticalAxis>
<mx:LinearAxis title="Dollars"/>
</mx:verticalAxis>
<mx:horizontalAxis>
<mx:CategoryAxis title="Year"/>
</mx:horizontalAxis>
</mx:CartesianChart>
</mx:Application>
[/code]
The only difference is the left definition for
mx:CartesianChart. When it's defined in terms of the width of the
legend, the axis titles disappear. Is there another way that I
should be displaying my chart using the full span of the
application?
Thanks again for your help.

Show dataTips on Chart

Hi,
I found some cool stuff in the internet. and I want to develop it. the code shows or draw a line while mouse are moving on the chart. Now I want to show the data tips/data points if the line get on the linechart. I already googling but I dont found any solution. I see an example on the internet but I dont know how to do it
http://www.google.com/finance?q=INDEXDJX:.DJI,INDEXSP:.INX,INDEXNASDAQ:.IXIC
can sombody help me?
thanks in advance
here is the code:
the mxml file:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" xmlns:local="*" xmlns:display="flash.display.*">
        <mx:Script>
            <![CDATA[
                import mx.controls.Alert;
                import mx.collections.ArrayCollection;
                 [Bindable]
            private var expensesAC:ArrayCollection = new ArrayCollection( [
                { Month: "Jan", Profit: 2000, Expenses: 1500, Amount: 450 },
                   { Month: "Feb", Profit: 1000, Expenses: 200, Amount: 600 },
                   { Month: "Mar", Profit: 1500, Expenses: 500, Amount: 300 },
                { Month: "Apr", Profit: 1800, Expenses: 1200, Amount: 900 },
                { Month: "May", Profit: 2400, Expenses: 575, Amount: 500 } ]);
            ]]>
        </mx:Script>
        <mx:LineChart dataProvider="{expensesAC}" showDataTips="true">
            <mx:annotationElements>
                <local:Ruler/>
            </mx:annotationElements>
            <mx:horizontalAxis>
                <mx:CategoryAxis categoryField="Month"/>
            </mx:horizontalAxis>
            <mx:series>
                <mx:LineSeries yField="Profit" form="curve" displayName="Profit"/>
                <mx:LineSeries yField="Expenses" form="curve" displayName="Expenses"/>
                <mx:LineSeries yField="Amount" form="curve" displayName="Amount"/>
            </mx:series>
        </mx:LineChart>
</mx:Application>
the as file:
package{
import flash.events.MouseEvent;
import flash.geom.Point;
import mx.charts.chartClasses.ChartElement;
import mx.charts.events.ChartItemEvent;
import mx.controls.Alert;
    public class Ruler extends ChartElement{
        private var main:Main = new Main();
        public function Ruler():void{
            super();
            addEventListener(MouseEvent.MOUSE_MOVE,handleMouseMove);
            addEventListener(MouseEvent.MOUSE_OUT,handleMouseOut);
        private function handleMouseMove(e:MouseEvent):void{
            updateDisplayList(unscaledWidth,unscaledHeight);
            var p:Point = new Point(this.mouseX,this.mouseY);
            graphics.lineStyle(2,0xFF0000,0.5);
            graphics.moveTo(0,p.y);
            graphics.lineTo(unscaledWidth,p.y);
            graphics.moveTo(p.x,0);
            graphics.lineTo(p.x,unscaledHeight);
        private function handleMouseOut(e:MouseEvent):void{
            updateDisplayList(unscaledWidth,unscaledHeight);
        override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void{
            super.updateDisplayList(unscaledWidth, unscaledHeight);
            graphics.clear();
            graphics.moveTo(0,0);
            graphics.lineStyle(0,0x000000,0);
            graphics.beginFill(0x000000,0);
            graphics.drawRect(0,0,unscaledWidth,unscaledHeight);
            graphics.endFill();

Unfortunately the code I wrote was just for testing and is very buggy.
I based it on two related examples I found:
http://shemesh.axspace.com/Charts_Programmatically_Show_DataTips_Using_DataTipItems/
and
http://reality-and-a-half.multiversum.com/werkzeuge/flex-show-chart-datatips-if-mouse-is-a nywhere-on-the-chart
They don't do exactly what you are looking for, but maybe it will give you some idea on how to proceed.
The charting DataTips do not seem to be a simple nut to crack as far as duplicating their normal behavior when showing multiple tips. Good luck and please share if you come up with a good solution.

Problem with displaying chart data

Hello everybody,
I have problem with displaying chart data correctly. I'm using a cartesian chart with DateTimeAxis. The stockdata I'm using is for half a year and
with ticks for every day. The problem is, that Flex displays the data of february in march together with the data of march. I have added a picture
to show the result. The second column of the grid is for february and the third for march.
Could anybody help me with this problem. Thanks in advance.
Thomas

Hi Chris,
thanks for your reply. Here you get the source code:
The following method creates the LineChart:
        public function init():void
            model.upperChart = this;
            model.upperChartStyle.setChartViewStyle(this);
            this.hAxis = new MyDateTimeAxis();
            model.upperChartData.configureHAxis(this.hAxis);
            this.vAxis = new LinearAxis();
            model.upperChartData.configureVAxis(this.vAxis);
            this.vAxisTitle = new Label();
            this.vAxisTitle.text = model.upperChartData.getVAxisTitle();
            model.upperChartStyle.setVAxisTitleLabelStyle(this.vAxisTitle);
            this.vAxisTitle.x = 10
            this.vAxisTitle.y = 0;
            this.addChild(this.vAxisTitle);
            this.myChart = new CartesianChart();
            //remove default datatip
            this.myChart.showDataTips = false;
            this.myChart.x = 10;
            this.myChart.y = 0;
            this.myChart.width = 768;
            this.myChart.height = 196;
            model.upperChartStyle.setChartStyle(this.myChart);
            this.addChild(this.myChart);
            //Remove line shadow
            this.myChart.seriesFilters = null;
            this.myChart.horizontalAxis = this.hAxis;
            this.myChart.verticalAxis = this.vAxis;
            this.hAxisRenderer = new AxisRenderer();
            model.upperChartData.configureHAxisRenderer(this.hAxisRenderer);
            this.hAxisRenderer.axis = this.hAxis;
            model.upperChartStyle.setHAxisRendererStyle(this.hAxisRenderer);
            this.myChart.horizontalAxisRenderers.push(this.hAxisRenderer);
            this.vAxisRenderer = new AxisRenderer();
            model.upperChartData.configureVAxisRenderer(this.vAxisRenderer);
            this.vAxisRenderer.axis = this.vAxis;
            model.upperChartStyle.setVAxisRendererStyle(this.vAxisRenderer);
            this.myChart.verticalAxisRenderers.push(this.vAxisRenderer);
            model.upperChartStyle.setVAxisDataLabelStyle(this.vAxisMinLabel);
            this.addChild(this.vAxisMinLabel);
            model.upperChartStyle.setSeriesStyle(model.upperChartData.series, model.upperChartData.shares);
            this.myChart.dataProvider = model.upperChartData.dataProvider;
            this.myChart.series = model.upperChartData.series;
The data for dataprovider and series you can see in attached file dataprovider.xml.
xfield is equivalent to timestamp
yfield is equivalent to absolute
I think the problem could be the configuration of the datetimeaxis. The following method shows the parameter for the datetimeaxis:
        public function configureHAxis(axis:MyDateTimeAxis):void
            axis.parseFunction = UtilityClass.parseYYYYMMDDHHNNSSString2Date;
            axis.dataUnits = "days";
            axis.dataInterval = 1;
            axis.title = "";
            axis.minimum = new Date(UtilityClass.parseYYYYMMDDHHNNSSString2Date("2009-01-07 00:00:00").time);
            axis.maximum = new Date(UtilityClass.parseYYYYMMDDHHNNSSString2Date("2009-07-06 00:00:00").time);
And finally you get the function, that I'm using for string to date conversion:
        public static function parseYYYYMMDDHHNNSSString2Date(input:String):Date
            var result:Date = new Date();
            var year:Number = Number(input.substring(0,4));
            var month:Number = Number(input.substring(5,7));
            var date:Number = Number(input.substring(8,10));
            var hours:Number = Number(input.substring(11,13));
            var minutes:Number = Number(input.substring(14,16));
            var seconds:Number = Number(input.substring(17,19));
            result.setUTCFullYear(year);
            result.setUTCMonth(month-1);
            result.setUTCDate(date);
            result.setUTCHours(hours);
            result.setUTCMinutes(minutes);
            result.setUTCSeconds(seconds);
            return result;
I hope that will help to locate the reason for the wrong chart visualization.
Thanks for any help.

Show DataTips for each series

Is there a way to customize the DataTips for each series in a
chart? I have a column chart that has a line series in it. The
columns display actual data, but the line shows an average.
Currently the datatips are set to show the column chart values,
even when a user hovers over a line chart datatip. Is there any way
to have the datatips for the lineseries display the lineseries
data?
I know I could create a DataTipFormatter that included both
the column data and the line data at the same time, but I would
like them separate.

Adobe Newsbot hopes that the following resources helps you.
NewsBot is experimental and any feedback (reply to this post) on
its utility will be appreciated:
L (Flex 3):
The LineChart control represents a data series as points
connected by a continuous .... whose contents are highlighted when
a user moves the mouse over it.
Link:
http://livedocs.adobe.com/flex/3/langref/all-index-L.html
Is it possible to use data labels with line chart? - Flex
India:
Feb 27, 2008 ... I want to create a line chart which shows
all the labels, regardless of the mouse pointer.
showAllDataTips=true works but the result is
Link:
http://groups.google.com/group/flex_india/browse_thread/thread/709c9651ad7c9062
mx.charts.LineChart (Flex 2.0.1 Language Reference):
Specifies the distance, in pixels, that Flex considers a data
point to be under the mouse pointer when the mouse moves around a
chart.
Link:
http://livedocs.adobe.com/flex/201/langref/mx/charts/LineChart.html
Print Page - Disable datatip but keep mouse event on line
chart:
Flex and ActionScript 3.0 => Flex Charting => Topic
started by: Sablotron on 29 July 2008, ... Title: Disable datatip
but keep mouse event on line chart
Link:
http://www.flexdeveloper.eu/forums/index.php?action=printpage;topic=895.0
[#FLEXDMV-1683] dataTipFunction for LineChart is not executed
when:
Mar 12, 2008 ... Set dataProvider for LineChart with one
datapoint 3. Set a dataTipFunction for the LineChart Actual
Results: Datatip does not show on mouse
Link:
http://bugs.adobe.com/jira/browse/FLEXDMV-1683
Disable datatip but keep mouse event on line chart |
flexdeveloper:
Aug 6, 2008 ... Disable datatip but keep mouse event on line
chart, help forums for developers working with ActionScript 3.0,
Flex 3, Flash CS3.0, and AIR.
Link:
http://www.flexdeveloper.eu/forums/index.php?topic=895.msg2716
Disclaimer: This response is generated automatically by the
Adobe NewsBot based on Adobe
Community
Engine.

Data tips in column charts - numbers need trimming

I want to keep the standard data tip format in my column
charts, but the numbers often look weird - even though the raw
numbers add up neatly to eg 3 decimal places, the data tip shows
15! As an example when the total of a column is 49.346, the data
tip shows "Total: 49.346000000000004". How can I stop this? I can't
find an example of how to do my own data tip function that
replicates the standard so I can round the numbers down.
Thanks.

Hello,
Sorry about resurecting an old post, but I'm having the same issue. My original numbers have unknow number of decimals, and when storing them in my ArrayCollection, I was originally using Math.round(myNumber*100)/100 to keep only 2 decimals. To my surprise, chart datatips show some numbers with 10 decimals (38.4899999999 for example).
I switched to using Number(nfToVal.format(myNumber)), since I already use the same NumberFormatter to display those numbers in a datagrid.
For info, nfToVal is:
var nfToVal:NumberFormatter = new NumberFormatter();
nfToVal.decimalSeparatorFrom=".";
nfToVal.decimalSeparatorTo = ".";
nfToVal.useNegativeSign="true";
nfToVal.thousandsSeparatorFrom="";
nfToVal.thousandsSeparatorTo="";
nfToVal.precision="2";
nfToVal.rounding="nearest";
Problem still there! Numbers display correctly as strings after being formatted, but get decimals again when converted back to numbers ...
Any hints ????
Thanks,
Olivier

Problem with area chart slowdown

Hey all.
Once again I am facing an unusual problem.
I built a Cartesian Chart that plots 4 area series from XML
Data supplied by PHP
The XAxis updates based on the data as well as the YAxis.
The XML is updated each time the user moves a slide bar to
set a value from 1 - 100.
When I slide below 20 My chart sometimes freezes and almost
always responds slowly.
Has anyone encountered this?

DOH.
Setting the interval on the Axis at .01 is not a good thing
Changing this to a reasonable number and setting Gutters
worked

Drag n Drop Bar Charts

Does anyone know if it's possible to set up a Bar Chart or
Cartesian Chart so that you can click on the bar and extend it via
drag n drop? If anyone knows of an example of this, i'd like to see
it. Thanks for your help.

Nobody?

Flex Charting Question

Does anyone know how include a labeled 'phase change line'
within a Flex chart? These types of charts are normally used to
track behavior over time (the phase change denotes changes in
medication, etc.). Any advice would be greatly appreciated.

Yes it is possible
You need to use the cartesian chart and a secondSeries and
secondHorizontalAxis or secondVerticalaxis

Datatip on mouseover

All the documentation I have found on datatips have said that "Flex reacts to mouse events such as click and mouseOver"
However, when I add a datatip to a chart, it only shows if I click on a bar, even in the samples online in the documentation.
What I would like is if I could do something like
<mx:CartesianChart id="Columnchart1" height="400" showDataTips="true" dataTipFunction="dtFunc2" eventType="mouseOver">
But there is no such thing as eventType.
So my question is, is there a way to make a chart datatip show just on mouseOver rather than with a click?

Never mind, it was a bug in FF, nothing that a browser restart couldn't fix.

Problems with Dashboard Demo App in Flash Builder 4

I imported the Adobe Flex Dashboard app into Flash Builder 4 using SD 4.1 and selected "Use Flex 3 compatibility mode", but there are still some issues after import.
I'm not talking about having to create the "libs" folder and re-generate the HTML templates. I know why that needs to be done. I'm also not talking about the IStroke and IFill errors you get for the number of arguments to the apply() and begin() methods, as those interfaces changed in Flex 3.5.
But when I get the app launched, the chart datatips are just a black rectangle (no text) and the combobox entry text is invisible.
I'm going to try and fix these, but I thought selecting "Use Flex 3 compatibility mode" meant no changed required?

Here is a simple example. Create a new project in Flash Builder 4 and in the project properties compiler section, select "Use Flex 3 compatibility mode". Then launch the app, hover over a column in the chart and you see black rectangles, not data tips. Why is this and how to fix?
<?xml version="1.0" encoding="utf-8"?>
<mx:Application
xmlns:mx="http://www.adobe.com/2006/mxml"
creationComplete="srv.send()"
height="600">
<mx:HTTPService id="srv"
    url="http://aspexamples.adobe.com/chart_examples/expenses-xml.aspx"/>
<mx:ComboBox dataProvider="{srv.lastResult.data.result}" labelField="month"/>
<mx:Panel title="Column Chart">
    <mx:ColumnChart id="myChart" showDataTips="true"
      dataProvider="{srv.lastResult.data.result}">
      <mx:horizontalAxis>
        <mx:CategoryAxis categoryField="month"/>
      </mx:horizontalAxis>
      <mx:series>
        <mx:ColumnSeries xField="month" yField="profit"
          displayName="Profit"/>
        <mx:ColumnSeries xField="month" yField="expenses"
          displayName="Expenses"/>
      </mx:series>
    </mx:ColumnChart>
    <mx:Legend dataProvider="{myChart}"/>
</mx:Panel>
</mx:Application>

Problem with dynamically created columnchart (FB 4 and 4.5)

I have an application (written in FB4 but I've imported to FB4.5 with no difference in behaviour) which dynamically creates cartesian charts. The total column values should be the same but the user can group them according to different fields. This works fine except for one of the possible grouping options. When that is used, I can see that all the data is present in the dataprovider, but one of the groups is just not shown - or rather when you hover over the column it shows "0" as the value for that group.
This is the code I run when the HTTP query comes back:
private function gotGroupHistory():void{
    if (hsGroupHistory.lastResult.list.item is mx.utils.ObjectProxy) {
        histModelSource = new ArrayCollection;
        histModelSource.addItem(hsGroupHistory.lastResult.list.item);
    } else {
        histModelSource = hsGroupHistory.lastResult.list.item;
    var grouparray:Array=new Array();
    var cset:ColumnSet = new ColumnSet;
    cset.type="stacked";
    var csplan:LineSeries=new LineSeries();
    csplan.displayName="Target";
    csplan.yField="plan";
    for each(var thisitem:String in chartgroups) {
        var cs:ColumnSeries=new ColumnSeries();
        cs.yField=thisitem;
        cs.displayName=thisitem;
        cset.series.push(cs);
        columnchart1.series=[cset];
        columnchart1.series.push(csplan);
        columnchart1.invalidateSeriesStyles();
        columnchart1.series=columnchart1.series;
        legend1.dataProvider=columnchart1;
As I said everything appears to be correct - the data provider has the data for all the groups but just 1 of them is not displayed. The legend also shows the name of the missing group. I really cannot figure out what is going on. Can anyone suggest my next line of investigation please?
Thanks
Martin

This problem is solved after updating to IOS 7.

Moving markers

In a cartesian chart, I have four series, three line and one
column series. I want to show moving markers on all of the four
series, when mouse is moved in chart region. Moving markers like
circle...
For that, I am using array of items which I have got through
items property of series object. and with the help of that array I
am getting x and y co-ordinates of each item.
I am then passing these co-ordinates to localToGlobal
function on series object to get global co-ordinates. After this, I
am getting the item with minimum diff between its co-ordinates and
the point where mouse is.
But the thing is, I am not getting exact item at the place,
where the mouse is. For whole width of an item on X-axis, i am
getting that item when the mouse is at the middle of that width.
Here is the sample code.....
var
arrSeries:Array=(ChartBase)(myPanel.getChildAt(1)).series;
for(var i:int=0;i<arrSeries.length;i++)
var arrItem:Array=arrSeries
.items;
var flag:int=-1;
var diff:int=100000000000;
for(var j:int=0;j<arrItem.length;j++)
arrItem[j].currentState="deselected";
for(var j:int=0;arrItem && j<arrItem.length;j++)
var p:Point =arrSeries.localToGlobal(new
Point(arrItem[j].x,arrItem[j].y));
if(diff>Math.abs(Math.ceil(p.x-event.currentTarget.mou*No
thank you*)))
diff=Math.abs(Math.ceil(p.x-event.currentTarget.mou*No thank
you*));
flag=j;
if(flag!=-1)
showValues(arrSeries
.yField,arrItem[flag]);
arrItem[flag].currentState="selected";

Yeah...get FCP 7. That feature was added to that upgrade. Other than that...you are stuck moving them manually.
Shane

Cartesian Chart DataTips

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