I have been using the System.Web.UI.DataVisualization.Charting pie chart control to display pie chart.
With the introduction of IE9, these graphs seem intermittantly to not load and just present the user with an image not found.
I have decided to replace this with DevExpress's WebChartControl and implement their Pie Chart.
I got their pie to resemble ours 90%, but am stuck at getting the pie's fill to match.
This is best explained with images.
Here is my original MS Chart Pie:
Here is my new Dev Express Pie:
The old pie seems to have a shadow effect around the border that makes it look much better.
Is this kind of effect possible with the DevExpress control?
I have tried playing with:
((PieSeriesView) series.View).Border
((PieSeriesView) series.View).FillStyle
Both don't seem to do what i want.
Any help will be greatly appreciated
I tried for about an hour to get the desired result for you, but unfortunately I just can't seem to be able to get deep enough to be able to introduce a new painter with the Drawing2d.PathGradientBrush.Blend option (which would be able to give you the desired look).
I have placed a question on your behalf on the support center Q337316, you are welcomed to track this question which I would imagine will turn into a suggestion.
So although this isn't a good answer, I don't think you will be able to achieve the results in the current DX library.
We have answered this question in the RadialGradientPainter - Support PathGradientBrush.Blend thread. I've also talked to guys from the XtraCharts team. This is impossible to implement in WindowsForms Charts, but should be possible in WPF. If you are interested in this alternative, drop me a line and I will add the required information here.
Related
Hello dear Stackoverflow Community,
I was looking for something like a multithumbslider in JavaFX, but couldn't find anything. I have a bar chart displaying the grades of an exam, and below that I would like to implement a multithumbslider (or if you have any other suggestions) where I can slide the points which are needed for each grade, so that the chart changes, depending on the changes of the multithumbslider.
Did i state my intentions clear...anyhow?
Does anyone have any ideas on that?
Thanks in advance!
Not by default, but you can have a look at ControlsFX which is a libaray which supply controls which are not available in JavaFX by default. They also have a RangeSlider
You can use their code to write your own MultiThumbSlider. This Control is mainly made up of two classes the RangeSlider and the RangeSliderSkin. The code can be found here:
org.controlsfx.control.RangeSlider
impl.org.controlsfx.skin.RangeSliderSkin
You can also find all other classes reqiured there.
I was wondering if there was a nice way to allow users to create nodal graphs (with restrictions) as with LabView.
Something like this:
I have seen http://www.pyqtgraph.org/, which seems to have something similar, and I do intend to use PyQt as my base (though I do not mind linking in C++ code), but it doesn't quite have the look and feel I wanted.
Any pointers to the right direction would be great.
There is a Diagram Scene Example which uses the Graphics View framework to make flowchart diagrams. It is an application in which you can add flowchart shapes and text and connect the shapes by arrows. The shapes, arrows, and text can be given different colors, and it is possible to change the font, style, and underline of the text.
You can take a look at the code and see how to create custom graphics items and handle mouse events and movement of items. Then change the look and behavior as you like.
Check another diagram editor here.
[not enough reps. to comment]I too had a similar task to implement. For me it was a large and complex block diagram. It was really hard to implement using QGraphicsScene. I posted a question on SO and instantly gained enough downvotes. No one gave any useful hints. So I did the hardway. Created images of lines with transparent background and changed the style-sheet dynamically. I don't know weather this is the right way. It will be really helpful if someone gave insights on this.
Anyone can point me to free or commercial Ribbon component done for Adobe Flex or Aswing? I seen one at some point but for some reason cant find any now. (Please don't mention minddomo, since it has nothing to do do with my question).
Thank you.
A Ribbon implementation in Flex would be a lot different from the standard TabNavigator. You must consider groups within each tab, and dynamic buttons within each group, and group popups etc.
I know this isn't an answer, but I don't know how to reply to the previous answer. :)
I don't know of one. But, whenever anyone asks for one I ask this question:
What is the difference between a Ribbon and a TabNavigator with a button bar as the children?
I'd consider creating one for Flextras if anyone could explain what the difference was.
I'm building a Flex app that includes an area chart, and when users hover over an AreaSeries, I'd like them to see the DataTip for the nearest data point in the series. The problem is that as far as I can tell (and I should admit at this point to being fairly new to Flex), mouseSensitivity is the only way to control when data tips appear.
If I set that to, say, 1000 pixels and tell Flex to only show a single data tip, that sometimes works, but frequently, the nearest data point is not one in the series on which the user is hovering (and in any case, it starts acting odd with such a high mouseSensitivity).
So my question, in short, is how to exert fairly direct control over which data tip is being shown at any given time. Thank you in advance.
Unfortunately i don't think there would be a straight forward method of achieving this just using a charts default members. I would expect you'd need to extend the chart component you were using and tie in with the internal workings of the chart. This isn't such an easy thing to do and the inner workings of the chart components are pretty complex. Something that isn't helped by a fairly messy implementation inside some of the classes.
There are obviously several directions you could take in solving this particular problem some that are more elegant than others.
It's defiantly possible but it's probably not a job for someone that is relatively new to flex. If i were you i would probably try to find a compromise to your requirements until you feel more comfortable delving into the chart components code.
IF you do decide to give it a go then you should come back with specific problems as myself and others are probably reluctant to solve such a big problem.
Keep the hitTest() method in mind: this is often the mouse-related unity of last resort.
Cheers
I'm a newbie to Adobe Flex 3.0. I need to show data within the Pie Chart Legend, alongside the colored markers. I have a few vague ideas about how to go about it. (Maybe I would have to write my custom legendMarkerRenderer.) Could anybody give any pointers? There aren't many examples on the net regarding this.
Thanks in advance!
P.R.
To show the data on the Legend you will need to extend LegendItem class. Example you can see in my blog: http://northam.blogspot.com/2009/05/flex-showing-data-in-legend-of-pie.html
Enjoy!
You can always customize the UI controls in flex as per ur requirements.
So you can extend the legend class
have a look # this also:liveDocs
Here's a really useful link for you. The Flex 3 Component explorer... It has examples of how to implement the majority, if not all, of the adobe flex components. If you want something more complex you may need to extend legend and create you own component. By the sounds of things it should give you enough to go on
Flex 3 Component Explorer (broken link)