DotNetHighCharts Pie Chart Labels Show Slice - c#

I am using DotNetHighCharts and playing around with the various chart formats. The Pie Chart labels show “Slice” for each slice of the pie. What parameter is used to change this to the actual name of the slice?

I got this figured out. I was using the PlotOptions like this
.SetPlotOptions(new PlotOptions
{
Pie = new PlotOptionsPie
{
DataLabels = new PlotOptionsPieDataLabels
{
Formatter = "function() { return '<b>'+ this.point.name +'</b>: '+ this.percentage +' %'; }"
}
}
})
However, I wasn’t passing in the names of the datapoint. So I created a namesAndVals object array that was passed into the Data element of the .SetSeries method.
object[] names = new object[] { “Val1", “Val2", “Val3", “Val4" };
object[] vals = new object[] { 11, 12, 13, 14 };
object[,] namesAndVals = new object[4,2];
for (int i = 0; i < names.Count(); i++)
{
namesAndVals[i, 0] = names[i];
namesAndVals[i, 1] = vals[i];
}
If there is a better way to create the final array I’m open to suggestions. Eventually, the gals and names will be driven by a database.

Related

Trying to read data from the fourth column in c# - unity

I am trying to color some clusters with different colors based on the name assigned to the fourth column of the csv dataset.
this is how the dataset looks like:
0.4601581 0.5122409 0.4826243 Cluster_2
0.4718494 0.4834378 0.4433978 Cluster_3
0.4695727 0.4993355 0.4738764 Cluster_1
I am displaying in unity the first three columns in a cube but want to color the datapoints according to the fourth column.
I have tried this so far:
var cellValue = data.Rows[i][3];
if(cellValue=="Cluster_1")
{
datapointMaterial.SetColor("_Color", new Color(0, 0, 1, 0.2f));
}
and this:
if (!myReader.EndOfStream && hasHeader)
{
string[] header = myReader.ReadLine().Split(separator);
if(header == "Cluster_1")
{
datapointMaterial.SetColor("_Color", new Color(0, 0, 1, 0.2f));
}
else
{
datapointMaterial.SetColor("_Color", new Color(1, 1, 1, 0.4f));
}
}
with this one I get this error:
Cannot implicitly convert type string to string[]
any help would be highly appreciated!

MS Chart X Axis label repeated - showing multiple points for a single item [Range Bar]

I have created a RangeBar MS Chart control that binds with a datatable. This datatable is created based on the below list data.
The problem is that x axis is showing multiple points for same item with different range.
List
MS Chart
X axis represents the 1st column of the list and Y axis values are 3rd and 4th columns. "dt" is the datatable name
Code
chChart.Series["Series1"].ChartType = SeriesChartType.RangeBar;
chChart.Series["Series1"].Points.DataBind(dt.DefaultView, "Number", "Start Time,Stop Time","ToolTip=Name,Label=Name");
Tried binding as different series but still not working.
var IETable = (dt as System.ComponentModel.IListSource).GetList();
chChart.DataBindCrossTable(IETable, "Number", "Number", "Start Time,Stop Time","");
foreach (Series sr in chChart.Series)
{
sr.ChartType = SeriesChartType.RangeBar;
sr.YValueType = ChartValueType.Time;
sr.XValueType = ChartValueType.String;
}
Is there a way to group x axis value for same item so that the bars are in same line?
Note - When using custom labels, only one value is shown for each x axis label.
Add 1 Series into the chart. Then for the Series, make sure YValuesPerPoint = 2.
Add new DataPoints so that the XValue represents the line (in the example for line ABC1, XValue = 1 and line ABC2, XValue = 2. For the DataPoint.AxisLabel you can set the label of that axis (in this case 'ABC1' and 'ABC2'). Then for the YValues, you specify values comma separated, for example 1,2 or 7,20.
Example:
chChart.Series["Series1"].Points.Add(new DataPoint() { AxisLabel = "ABC1", XValue = 1, YValues = new double[] { 2,5 } });
chChart.Series["Series1"].Points.Add(new DataPoint() { AxisLabel = "ABC1", XValue = 1, YValues = new double[] { 6,7 } });
chChart.Series["Series1"].Points.Add(new DataPoint() { AxisLabel = "ABC1", XValue = 1, YValues = new double[] { 9,10 } });
chChart.Series["Series1"].Points.Add(new DataPoint() { AxisLabel = "ABC2", XValue = 2, YValues = new double[] { 3,6 } });
chChart.Series["Series1"].Points.Add(new DataPoint() { AxisLabel = "ABC2", XValue = 2, YValues = new double[] { 7,8 } });
So the key is that the XValue must be same (double?) for all the bars on same line.
Manipulating datapoints individually for each series did the trick. Based on the index of the custom label, i modified the Xvalue of the datapoint. "vn" is a string array that has custom label names.
var IETable = (dt as System.ComponentModel.IListSource).GetList();
chChart.DataBindCrossTable(IETable, "Number","","Start Time,StopTime","");
foreach (Series sr in chChart.Series)
{
sr.ChartType = SeriesChartType.RangeBar;
sr.XValueType = ChartValueType.String;
foreach (DataPoint p in sr.Points)
{
int dpIndex=0;
// foreach unique x axis value, increment dpIndex
//ToDoCode
//aligning the datapoint's X axis value in the middle
p.XValue = dpIndex + 0.5;
}
}

How to create area range chart

I want to create area range chart as given in the following link
I want to add data to ranges using loop on my data. What should be the type of the ranges to create chart?
Please suggest. Thanks in advance. Here's the JSFiddle code:
HTML:
<script src="http://code.highcharts.com/highcharts.js"></script>
<script src="http://code.highcharts.com/highcharts-more.js"></script>
<script src="http://code.highcharts.com/modules/exporting.js"></script>
<div id="container" style="min-width: 310px; height: 400px; margin: 0 auto"></div>
JS:
$(function () {
var ranges = [[1246406400000,33,22],[1246492800000,24,12],[1246579200000,15,1],[1246665600000,28,17],[1246752000000,22,12],[1246838400000,34,22],[1246924800000,30,19],[1247011200000,27,15],[1247097600000,35,24],[1247184000000,29,14],[1247270400000,32,20],[1247356800000,32,21],[1247443200000,34,23],[1247529600000,19,9],[1247616000000,31,21],[1247702400000,22,7],[1247788800000,25,11],[1247875200000,19,6],[1247961600000,33,18],[1248048000000,33,18],[1248134400000,21,7],[1248220800000,31,19],[1248307200000,25,15],[1248393600000,29,19],[1248480000000,34,23],[1248566400000,21,9],[1248652800000,27,12],[1248739200000,19,4],[1248825600000,32,19],[1248912000000,32,20],[1248998400000,16,1]], ranges2 = [[1246406400000,22,-22],[1246492800000,12,-12],[1246579200000,1,-1],[1246665600000,17,-17],[1246752000000,12,-12],[1246838400000,22,-22],[1246924800000,19,-19],[1247011200000,15,-15],[1247097600000,24,-24],[1247184000000,14,-14],[1247270400000,20,-20],[1247356800000,21,-21],[1247443200000,23,-23],[1247529600000,9,-9],[1247616000000,21,-21],[1247702400000,7,-7],[1247788800000,11,-11],[1247875200000,6,-6],[1247961600000,18,-18],[1248048000000,18,-18],[1248134400000,7,-7],[1248220800000,19,-19],[1248307200000,15,-15],[1248393600000,19,-19],[1248480000000,23,-23],[1248566400000,9,-9],[1248652800000,12,-12],[1248739200000,4,-4],[1248825600000,19,-19],[1248912000000,20,-20],[1248998400000,1,-1]], ranges3 = [[1246406400000,-22,-45],[1246492800000,-12,-30],[1246579200000,-1,-17],[1246665600000,-17,-43],[1246752000000,-12,-40],[1246838400000,-22,-45],[1246924800000,-19,-43],[1247011200000,-15,-45],[1247097600000,-24,-50],[1247184000000,-14,-37],[1247270400000,-20,-44],[1247356800000,-21,-42],[1247443200000,-23,-42],[1247529600000,-9,-37],[1247616000000,-21,-40],[1247702400000,-7,-24],[1247788800000,-11,-27],[1247875200000,-6,-27],[1247961600000,-18,-34],[1248048000000,-18,-46],[1248134400000,-7,-36],[1248220800000,-19,-48],[1248307200000,-15,-30],[1248393600000,-19,-49],[1248480000000,-23,-50],[1248566400000,-9,-38],[1248652800000,-12,-27],[1248739200000,-4,-26],[1248825600000,-19,-45],[1248912000000,-20,-40],[1248998400000,-1,-17]];
$('#container').highcharts({
title: {
text: 'Sentiment Flood Map'
},
xAxis: {
type: 'datetime'
},
yAxis: {
title: {
text: null
}
},
tooltip: {
crosshairs: true,
shared: true,
valueSuffix: ''
},
legend: {
},
series: [ {
name: 'Positive',
data: ranges,
type: 'arearange',
lineWidth: 0,
linkedTo: ':previous',
color: Highcharts.getOptions().colors[2],
fillOpacity: 0.8,
zIndex: 0
}
, {
name: 'Neutral',
data: ranges2,
type: 'arearange',
lineWidth: 0,
linkedTo: ':previous',
color: Highcharts.getOptions().colors[1],
fillOpacity: 0.8,
zIndex: 0
}
, {
name: 'Negative',
data: ranges3,
type: 'arearange',
lineWidth: 0,
linkedTo: ':previous',
color: Highcharts.getOptions().colors[3],
fillOpacity: 0.8,
zIndex: 0
}
]
});
});
Here is an example the produces a Chart graphic just like the one in the linked image.
Note: After I have created a few testdata I calculate a dummy series with a transparent color that will make the whole data stack up so that the median of the "neutral" series sits nicely on one horizontal line.
int numPoints = 30; // create some test data
List<int> neutralData = new List<int>();
List<int> negativeData = new List<int>();
List<int> positiveData = new List<int>();
List<int> dummyData = new List<int>();
for (int i = 0; i < numPoints; i++)
{
// the real data series, using a Random R:
positiveData.Add(R.Next(i + 22));
neutralData .Add(R.Next(i + 33));
negativeData.Add(R.Next(i + 44));
// calculate the transparent bottom series:
dummyData.Add( - neutralData[i] / 2 - negativeData[i]);
}
// set up the Chart:
chart1.ChartAreas.Add("StackedArea"); // if necessary
Series s0 = chart1.Series.Add(" ");
Series s1 = chart1.Series.Add("negative");
Series s2 = chart1.Series.Add("neutral");
Series s3 = chart1.Series.Add("positive");
foreach (Series s in chart1.Series) s.ChartType = SeriesChartType.StackedArea;
s0.Color = Color.Transparent;
s1.Color = Color.FromArgb(200, Color.Red);
s2.Color = Color.FromArgb(200, Color.LightSlateGray);
s3.Color = Color.FromArgb(200, Color.Green)
// now add the data points:
for (int i = 0; i < numPoints; i++)
{
s0.Points.AddXY(i, dummyData[i]);
s1.Points.AddXY(i, negativeData[i] );
s2.Points.AddXY(i, neutralData [i]);
s3.Points.AddXY(i, positiveData[i]);
}
If you want to show a tooltip similar to the one from your example you can add this to the AddXY loop:
int a2 = dummyData[i] + negativeData[i];
int a3 = a2 + neutralData[i];
int a4 = a3 + positiveData[i];
string tt = string.Format( "Data Point {0}\r\nPositive: {1} - {2}\r\n"
+ "Neutral: {2} - {3}\r\nNegative: {3} - {4}", i, a4, a3, a2, dummyData[i]);
s1.Points[i].ToolTip = tt;
s2.Points[i].ToolTip = tt;
s3.Points[i].ToolTip = tt;
Here is an example image:
You can not create a chart exactly like the one shown in link but you can use different series on your chart. I am posting the code that creates a chart and populates it with 2 series, you can add as many series as you want.
DataSet dataSet;
ConnectionClass.GetInstance().connection_string = Properties.Settings.Default.MindMuscleConnectionString;
ConnectionClass.GetInstance().Sql = "Select Count(MemberInfo.memberName) as 'Members', CompetitionName as 'Competition' FROM MemberInfo, MemberBodyInfo, Competition WHERE MemberInfo.memberID = MemberBodyInfo.memberID AND MemberBodyInfo.weight >= Competition.CompetitionCategory and MemberBodyInfo.weight <= Competition.CompetitionCategory + 5 group by CompetitionName;";
dataSet = ConnectionClass.GetInstance().GetConnection;
chart1.Series["Series1"].Name = "Members";
chart1.Series["Members"].YValueMembers = "Members";
chart1.Series["Members"].XValueMember = "Competition";
chart1.Series.Add("Members2");
chart1.Series["Members2"].ChartType = SeriesChartType.StackedArea;
chart1.Series["Members2"].IsValueShownAsLabel = true;
chart1.Series["Members2"].YValueMembers = "Members";
chart1.Series["Members2"].XValueMember = "Competition";
this.chart1.Titles.Add("Competition Participants"); // Set the chart title
chart1.Series["Members"].ChartType = SeriesChartType.StackedArea;
chart1.Series["Members"].IsValueShownAsLabel = true; // To show chart value
chart1.DataSource = dataSet;
chart1.DataBind();
I have not actually created a new series from some different data... Both series are same here but I have just showed you an example.

Creating an object array of two value arrays dynamically – application: highcharts dotnet

I'm hoping to get a quick solution to this.
Here is a snippet of the code that works when creating a series:
Series SeriesABC2 = new Series
{
Name = '#' + HakuAlueet[1],
Data = new Data(
new object[]{
new[] { 300, 440 },
new[] { 400, 540 }
}),
PlotOptionsArearange = new PlotOptionsArearange { Visible = true, LineWidth = 0, FillOpacity = 0.3 },
Type = ChartTypes.Arearange
};
Now the plan is to make this dynamic creating the values in the object "new[] { 300, 440 }, new[] { 400, 540 }" inside .net C#. I'm quite new to C# so I'm not quite sure of the naming convention, but I seem to need to make an array object of an two value arrays. How would I go about this?
I've tried countless ways of managing this but just haven't found a solution that would be acceptable to dotnet.Highcharts. Thanks!
string[] books= source.Select(a => a.bookName).ToArray();
object[] visits = source.Select(a => (object)a.Visits).ToArray();
DotNet.Highcharts.Highcharts chart = new DotNet.Highcharts.Highcharts("chart")
.InitChart(new Chart { DefaultSeriesType = ChartTypes.Bar,
Width = 900
}).SetPlotOptions(new PlotOptions {
Bar = new PlotOptionsBar {
ColorByPoint = true,
DataLabels = new PlotOptionsBarDataLabels {
Enabled = true }
}
}).SetXAxis(new XAxis { Categories = books,
}).SetSeries(new Series
{
Data = new Data(visits),
Name = "User Book Visits"
});
lb_chart.Text = chart.ToHtmlString();
Here source contain data where I am querying some dynamic content. This is working and hope this will also help you.

piechart using devexpress, pass values from variables

I'm using DevExpress for WinForms (the free one) and I'm using a 3D pie chart.
I already have a chart using the Windows version and all I do is pass four variables as the values the chart needs in the series.
Here's the code I use currently.
double[] yValues = { bottom, bmid, tmid, top};
string[] xNames = { "Greater than 200", "Between 200-100", "Between 100-50", "Below 50" };
chart1.Series[0].Points.DataBindXY(xNames, yValues);
Now, I've made a DevExpress chart and tried to use:
Devchart1.series[0].points
but points.databind does not exist.
Does anyone know how I bind the data like I have using WinForms?
UPDATE
Here's some more things I tried (commented out).
double[] yValues = { bottom, bmid, tmid, top};
string[] xNames = { "Greater than 200", "Between 200-100", "Between 100-50", "Below 50" };
chart1.Series[0].Points.DataBindXY(xNames, yValues);
DataTable chartTable = new DataTable("Table1");
// Add two columns to the table.
chartTable.Columns.Add("Names", typeof(string));
chartTable.Columns.Add("Value", typeof(Int32));
chartTable.Rows.Add("Below 50", top);
chartTable.Rows.Add("Between 50-100", tmid);
chartTable.Rows.Add("Between 100-200", bmid);
chartTable.Rows.Add("Greater than 200", top);
Series series1 = new Series("Series1", ViewType.Pie3D);
chartControl2.Series.Add(series1);
series1.DataSource = chartTable;
series1.ArgumentScaleType = ScaleType.Qualitative;
series1.ArgumentDataMember = "names";
series1.ValueScaleType = ScaleType.Numerical;
series1.ValueDataMembers.AddRange(new string[] { "Value" });
//((Pie3DSeriesView)series1.View). = true;
//((pie)chartControl2.Diagram).AxisY.Visible = false;
chartControl2.Legend.Visible = false;
// Dock the chart into its parent and add it to the current form.
chart1.Dock = DockStyle.Fill;
::UPDATE2::
heres what happens with this code with values 101, 22, 20 and 15.
DevExpress Series has DataSource property for binding.
Check this article. Hope it helps
UPDATE:
I use your code and it seems to work fine
DataTable chartTable = new DataTable("Table1");
// Add two columns to the table.
chartTable.Columns.Add("Names", typeof(string));
chartTable.Columns.Add("Value", typeof(Int32));
chartTable.Rows.Add("Below 50", 10);
chartTable.Rows.Add("Between 50-100", 10);
chartTable.Rows.Add("Between 100-200", 10);
chartTable.Rows.Add("Greater than 200", 10);
Series series1 = new Series("Series1", ViewType.Pie3D);
//chartControl1.Series.Clear();
chartControl2.Series.Add(series1);
series1.DataSource = chartTable;
series1.ArgumentScaleType = ScaleType.Qualitative;
series1.ArgumentDataMember = "names";
series1.ValueScaleType = ScaleType.Numerical;
series1.ValueDataMembers.AddRange(new string[] { "Value" });
//((Pie3DSeriesView)series1.View). = true;
//((pie)chartControl2.Diagram).AxisY.Visible = false;
chartControl2.Legend.Visible = false;

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