Flex :: Customize CircleItemRenderer In Chart?
Apr 10, 2011<mx:LineSeries form="curve" displayName="BG" yField="Value" xField="DateTime">
<mx:itemRenderer>
<fx:Component>
[code].....
<mx:LineSeries form="curve" displayName="BG" yField="Value" xField="DateTime">
<mx:itemRenderer>
<fx:Component>
[code].....
I'm trying to prevent a default chart item roll over highlight in a Spark column chart.If you look at any of the chart examples on this page , when you roll over any of the chart series items, they turn a darkened shade of their original colour. This is what I want to prevent.
So far I have had no luck with using the itemRollOverColor property, as this only allows you to set it to one specific colour for the whole chart (my app has several different coloured series on the chart at once). Also, trying to leverage the itemRollOver event (with preventDefault() etc) hasn't worked either.
I'm trying to make chart which is combination of bar and line chart using Flex Charting API . Here x axis would be common and y axis would be different. note that y axis got different range of value one is % and other is amount. Any one got idea how to make this chart. Here line chart would be staked on top of bar chart . The line chart and never over laid or drawn on top of bar chart.
View 1 RepliesI have a linechart and dots showing the places where a datatip pops up. I can change the line to any color I want and I can set the inside color of the dot. But the border color still stays orange (from the default color). [code]...
View 1 RepliesIs it possible to develop chart in flash (eg. bar chart, pie chart)?
View 1 RepliesI have modifyed XMLEncoder class from Flex SDK (XMLEncoder.as)
After it I run my project but I don't see any changes...
What should I do to realy modify project's behaviour?
there is a bar like in the following website which i am unable to create the one with blue in color and has a question mark
the Link : customize bar
I have a column with 4 fields named : a> Main, b> Forward c> Back d> Link, if I use pre-defined sorting of datagrid with the column names which will be alphabetically, then the order is c>Back b>Forward d> Link a> Main. But, I do not want to sort based on the alphabets. I prefer to sort by names of the column fields. i.e. somehow give priority to each individual column field names. Like pre-define my own order.
View 2 RepliesI need to customize my alert box with two button and both the button need to have different skins on them. I was able to do it for one skin. But i am unable to figure out about the two skins. My code that i have right now is below:
[Code]...
I want to increase the (height) size and change the color of a spark accordion header, similarly I want to change the color of a spark panel header. Can I do this through mxml properties and css or will I need to use a custom skin?
View 1 RepliesHow can I customize my barchart datatips in flex? The transparent background of them is too dark to see any of the text in them.
View 1 Repliesthe thing I mean cannot be probably done with the component, but I don't know how is the component I want called. I would like to achieve a list but with sort of "icon look". You could say some sort of springboard navigation.
Here is just a quick sketch in Photoshop how it should look like: [URL]
The item is the one actual item in the list or something.
I have an area graph and I'm looking to have the data points to be shown. I have a CircleItemRenderer, but this shows all of the datapoints in the default stroke and fill. 1) How do I customize the display of my CircleItemRenderer? (instead of it having an orange fill, how can I change the color?
2) How can I decide to show the node for specific data points but not for others? For example, in my .XML file that imports the data for the graph, I may have a variable show_data_point which is true or false.
[Code]...
I have made a program in Flex for creating simple schedules, similar to MS Project or Vico Control. I have one problem that I would like to solve. (You can see it here: OnTime Project Scheduling tool made in Flex
The tasks of the schedule are represented as Gantt Chart, for which I created a itemRenderer inside one of the rows in the DataGrid. The tasks are shown as gantt diagrams, but I would also like to show the connectivity between tasks.
take a look at the image below, to see what I am trying to accomplish here: (above is the image of how datagrid looks now, and below is the thing I would like to add)
how I could do this inside DataGrid's item renderer?
I need to customize a look and feel of standard Flex LineChart with LineSeries. I cannot figure out how to change default circles drawn when the mouse pointer is over a data point.
View 3 RepliesHow can I Create an animated Bar Chart or Line Chart type of component in flash programmatically, which should depends upon an incoming XML data, the chart should have the basic criteria like, Chart Label, Item Tooltips, background grids (without using any image). There also needs an ability to change the data which should reflect the chart as well.
View 1 RepliesMy group is working on a Flex/AS3 scientific web application that is data intensive. Luckily the only plots involved are line charts. However, each line chart may have multiple traces (up to 24), and each trace may contain up to 2000 points. The user will need to zoom in and out and interact with the data (e.g. data tips, etc.).
The response I'm getting from developers is that's a lot of data to render in a plot in Flash. For reasons beyond the scope of this post, we can't sample the data to reduce the size (this has already been done and nature of the data prevents further sampling).
Rendering speed is critical for this app. What kind of rendering speed should I expect the Flex 4 line chart component to provide for a given number of points (e.g. 1 second to render 1000 points?)
Are there products available that handle plotting large data sets better, which can be incorporated in Flex (I've seen FusionCharts and ZingCharts online but have no idea how they compare with Flex's components)? Of those, which are easy to develop with while still providing a lot of flexibility in look and feel?
Flex charts, like AreaChart, have wonderful built-in support for displaying data "tool tips" when a user hovers over a point supplied in the data of a graph. You can hover over any of the bar graph examples on this page for a demonstration. I have a graph situation where I optionally draw in some dots as reference points on CartesianDataCanvases supplied to my AreaChart through it's <mx:annotationElements> and <mx:backgroundElements> tags.
I would like to have the same hover data-tip functionality that the AreaChart has, but applied to these dots. I realize that I am just drawing on canvas, and that no actual dataProvider supports these dots, but if there was a way to supply the CartesianDataCanvas with an array of data values or something to that effect,
I have a dynamic ArrayCollection that will contain a unknown number of objects of type MyObj:
class MyObj
{
type:String
[code]........
I am in a situation where user gets the cars data from the database based on the selection and displays it in datagrid like below ( for example)
Company Model Year No
GM Chevy 2010 10
GM Chevy 2009 5
GM Pontiac 2010 12
Honda Civic 2009 12
and there will be a link next to datagrid to get Pie chart based on the data displays in the data grid . The pie graph should display grouping by company and the count . I mean for the above example that should give with two pie items , one for GM showing the number of vehicles ( in this case 3 ) and Honda showing the number of vehicles ( in this case 1 ).
I thought of getting it from the database by querying and grouping it .But here the problem is after getting the data above in the datagrid user can able to filter at client end ( By year or model ) and can say get graph . This time that should only display the graph for the data visible in Datagrid .Grouping on database for every operation is becoming expensive. Since we have already data available at client end , is there any way to group it at client ..?
Is it possible to restrict flex bar chart y-axis count?I have a very big name coming in my y-axis and i want to reduce or restrict it to 5 characters and on rollover i want to display it in full.
View 1 RepliesWe get data from multiple feeds and data may or may not exist for a certain date. o, for points that have no data we send NaN.
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When using a Flex chart, the y-axis is drawn as a thick (about 8px) grey line. Is it possible to change this to be just a thin line like the x-axis?
View 1 RepliesI've created a line chart in flex and it works like expected. Now, I would like to add shading to the background for specific information. For example, this chart - [URL], shows a shaded background for recessions. How would I mimic this shading in a Flex linechart?
View 2 RepliesI want a bubble chart that just shows items along a straight line. So I'd like the horizontal axis to essentially not exist. I have it working right now with the yField assigned to a field that happens to always be '1' on my test dataset.. but this is not going to be the case in general, so I need some way to restrict the y-axis... preferably without needing to go back to my model and parse through all my data to add a dummy value '1' on each entry.
Unfortunately setting min/max values just cuts off anything above or below rather than restricting entries.
I set computedMin and Maximum (no idea what they are and the docs don't really explain) but it didn't seem to restrict the data in any way.
In Flex how can I set a custom name (string) for the X axis and Y axis titles of a chart?
(Horizontal Axis and Vertical Axis)
I would like to be able to specify the placement of a legend for a linechart. Currently, it continues to appear to the right of the chart. I have tried playing with the width/height of the chart to no avail... Putting the legend before the linechart in the mxml causes it to appear to the left. I can't seem to get it appear at the bottom though. I can't seem to find any good examples for this. They don't seem to specify anything but the legend usually shows up below the chart, I can't seem to do it.
View 1 RepliesI'm using a lineseries chart, but it gets fairly slow to re-render when I add a new point when the total # of points is ~1200 points. Granted, this is running on a fairly slow PC (~600 MHz). Reading the Flex documentation on how to speed up rendering (turning off dropshadows, turning off filterData, etc...) doesnt seem to help. I bound my chart to an ArrayCollection (rather than the array I used before which I manually updated) and it doesnt seem to be any faster. Adobe's documentation seems to have me believe that the Chart looks only at what changed since the last time it was updated, but i'm only adding one point!
If their info is correct, why does it take significantly longer (5 seconds) to update one point when I have ~1200 points then when I only have 2 points (instantaneous)? FYI - When I add a new point to my ArrayCollection, I have to do a "AC.refresh()" to get the DataBinding to pick up the new data.
How to add a watermark to a charting component in flex? Maybe to a Line Chart or just simple to a canvas.
View 2 Replieshow to create organisation chart in flex using xml
View 2 Replies