I was perusing the asp.net chart control's sample website, and came across something in the pie chart gallery. There was 3 pie charts, "stair stepped" on top of each other. I starting using this control for a financial services application, and would like to replicate this effect. It looks like this:
3d Stair stepped Pie Chart http://www.freeimagehosting.net/uploads/87a5caabca.png
I'd post some code on what I've accomplished so far, but I have no idea where to start with this. I'm guessing maybe I'd have to create the 3 charts, and offset their axes, am I off base here? Any help would be appreciated.
You need to create 3 seperate series and assign them to seperate chart areas.
The chart areas need to stepped down the page using position.x and position.y
Other tricks include disabling the legend for the second and subsequent series.
To get the transparency affect you need to work at a data point level in the series. Note the Ownership data point is not transparent but the renting and leasing data points are.
Related
I'm trying to put together a graph, that has sub category column graphs drawn infront of a total column graph.
Something like this
Anyone offer any ideas how to approach this, I have tried a few failed ways.
I have tried to make two ChartAreas in the same Chart, but they rendered the graphs separately on top of each other
I've also tried having 2 seperate charts overlapping each other and setting the background to transparent. That appears to see through both graphs.
chart2.BackColor = Color.Transparent;
chart2Area1.BackColor = Color.Transparent;
I'm working on a LineGraph control which consists many DependencyProperties that affect how the control should display its data. For example, the control contains the following properties to affect its axes:
AxisStroke - Color of the axes.
AxisThickness - Stroke thickness of the axes.
It also contains properties for display numbers & tick marks
VerticalTicks - True/False to indicate whether or not ticks appear along the vertical axis
HorizontalTicks - True/False to indicate whether or not ticks appear along the horizontal axis
VerticalMin - Minimum value on the vertical axis (numeric)
VerticalStep - The distance in between each vertical tick
VerticalMax - Maximum value on the vertical axis (numeric)
HorizontalMin - Minimum value on the horizontal axis (numeric)
HorizontalStep - The distance in between each horizontal tick
HorizontalMax - Maximum value on the horizontal axis (numeric)
And many more properties exist to allow for different line styles on a single graph (LineColor, LineThickness, DataPointShape, and DataPointIcon to name a few).
My goal is to be able to call out my LineGraph in XAML to insert it into a Window. I would like to be able to specify each of these settings inside the XAML as well, and see the new rendered image of the control in the WPF designer.
Now, given there is a lot of geometric shapes to render on the LineGraph, I though using a Canvas would be a good choice to render the data. Unfortunately, when I'm working in XAML, I cannot perform computations for the locations of shapes based on the control's width & height.
And yes, the shapes' locations must be computed because the data points for the graph are dynamic and the tick-related information is dynamic. Not to mention, I would like to display the actual values along each axis of the LineGraph.
So, I thought I might be able to display this control as if I was doing the rendering in C# code. Other windowing frameworks sometimes provide a Render method that can be used for laying out all of the sub-components.
Doing this, however, doesn't seem possible since WPF relies heavily on XAML for the visual appearance of controls. Also, requiring that the WPF designer must display the LineGraph based on the properties and data specified, it doesn't seem like C# code would solve the problem.
I suppose my questions are these:
How can I render data dynamically inside of a WPF control?
Am I able to specify in C# how my control is rendered, allowing the WPF designer to reflect it?
Side Note:
I've done quite a bit of research, but I am only finding information on how to implement more simple types of controls. If you know of any references that contain information on this topic, please feel free to post them in addition to your answers. I will be more than happy to learn how to do this completely.
EDIT:
I've created a graph using Excel to elaborate what the LineGraph control might look like if it has correct data and properties.
I will answer this based on my experience on implementing custom built graphing libraries in WIN32, WinForm, WPF, WinCE, WP8+WinRT, ....and even on a FPGA :)
It's extremely difficult to implement one from scratch. It may seem easy at first but you will run into a lot of "What should I do if this happens?". For example, in your above graph it seems you got a DataPoint # (5,100) it graphs it pretty well. But lets say, I add another DataPoint # (5.000000005, 0). How would you handle that in your code? Would you say that each pixel on the graph represents an exact value on the X-Axis, or does each pixel represent a range of X-Values?
I would recommend that you use an already establish library to do what you want to do unless you need something very specific like lets say you need horizontal cursors on the graph (think Tektronix Oscilloscope) and you need to calculate some values in between the two cursors.. then maybe you need to implement your own custom one or build on top of an open source one.
So, if you are still adamant of creating your own custom control here are answers to your questions.
How can I render data dynamically inside of a WPF control?
You can use a WriteableBitmap and create your own primitive drawing library from that. After you're done rendering, set it as the ImageSource of your control.
Or you can use WriteableBitmapEx which has GDI like drawing functions already implemented for you.
WriteableBitmapEx CodePlex Page, I also think you can just get it from NuGet as well.
You can also use a <Canvas> and add UI elements to that as well.
Am I able to specify in C# how my control is rendered, allowing the WPF designer to reflect it?
This depends on how you create your controls, but yes you can create Properties in your custom control that will appear in the Designer. Allowing you to change it thus updating the display. I would read a lot of tutorials about writing your own custom user control library. They can explain it better than I can in a SO answer. If you implement the properties correctly it should like so.....
Full Size Image: http://i.stack.imgur.com/pmevo.png
After changing the Number of Rows from 15 to 10 and the starting Y offset to -1 (thus moving the graph up and making the rows a lot taller)
Full Size Image: http://i.stack.imgur.com/0RKnA.png
I am creating a web application using c#. I have four values(or series) volt,current,wh and temperature which I will have to plot in a chart control against time which(time) will be shown in x-axis. All things done correctly. But the range of the values are different like one is in range of more than 1000,another lies between 0 to 10,another shows negetive value,etc. I want to create different y-axis for each series.I had created two y-axis which is a property of series(YAxisType),primary and secondary. Is it possible to create multiple y-axis?I had searched in google but didn't get any proper answer. Please help me.
You can only use 2 y-axis(primary and secondary)
But you can create a few chart areas within one chart control
Or you can add a button that will hide one chart control and show another(with others 2 axis)
I am drawing a bar chart and I saw some of them have different width than others.
I tried changing PointWidth and PixelPointWidth properties. But of no use. Here is the graph I got :
The only configure I done is barChart1.Series["DeltaE"]["PointWidth"] = (0.6).ToString();
You may have too many data and the chart is too small. Try delete some data or make the chart bigger.
I made an example. I created a c# project, put a chart in the form, randomly add some data and run the program.
When the chart is big enough, it looks well.
When the chart is smaller, not all the columns are the same width.
Hi I am using Ms chart control in winforms application for displaying values according to dates
I need to change the x-axis label values(Dates) direction horizantal to vertical
I have searched so many properties but i did not find any solution for this.
Any one help me on this problem
Many Thanks ....
As I understand your question - you are asking how to rotate the chart label to display vertically.
You can rotate the x-axis label as follows:
chart1.ChartAreas[0].AxisX.LabelStyle.Angle = -90;
This assumes you have associated your series with the first chart area, which is the default without modification when using the Winforms designer.
The following images shows how the chart would look before the code above is applied, the second image shows how it appears after the code is applied.
Let me know if this is not what you are trying to do and I will post an updated answer.
Before rotation
After Rotation
Edit: Another answer added after my initial post mentions in certain situations it may be important to set chartArea1.AxisX.IsLabelAutoFit = false;
If you have not already done so, get the chart samples from microsoft:
http://archive.msdn.microsoft.com/mschart
Then check the section on Labels
Chart Features > Labels
To answer your question directly, set the angle in LabelStyle, and don't forget to disable autofit
chartArea1.AxisX.IsLabelAutoFit = false;
chartArea1.AxisX.LabelStyle.Angle = 90;