This is an incredibly localized problem but I've spent a while on it now and just can't get the formatting to work. Basically what I want to do is show a column chart for a value but no bells and whistles (i.e. no labeling, no title, no legend, nothing!) And I want it to look like this:
But instead it looks like this:
The axis extends out and to the right and I can't figure out how to make it go away. Here is my code:
charts[i].Series.Clear();
charts[i].Series.Add("Block " + i + 1);
charts[i].Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Column;
charts[i].Series[0].Points.Add(liveData[i]);
charts[i].ChartAreas[0].AxisY.Maximum = 4;
charts[i].ChartAreas[0].AxisY.Minimum = 0;
charts[i].ChartAreas[0].AxisX.Maximum = 1;
charts[i].ChartAreas[0].AxisX.Minimum = 1;
charts[i].ChartAreas[0].AxisX.MajorGrid.LineWidth = 0;
charts[i].ChartAreas[0].AxisY.MajorGrid.LineWidth = 0;
charts[i].ChartAreas[0].AxisX.LabelStyle.Enabled = false;
charts[i].ChartAreas[0].AxisY.LabelStyle.Enabled = false;
charts[i].ChartAreas[0].AxisY.LineWidth = 0;
charts[i].ChartAreas[0].AxisY.MajorTickMark.Enabled = false;
charts[i].ChartAreas[0].AxisX.MajorTickMark.Enabled = false;
charts[i].Series[0].IsVisibleInLegend = false;
Now I am guessing this is a min/max thing but for the life of me I just can't get it to work. Can someone see my mistake? Or suggest another method besides charts?
Also note the 'Block 1 (V)' label you see underneath is not generated by the chart, it is a textbox label that just happened to get cut into the screenshot.
Thanks!
Your data has the x-value of 1. By default the bar is centered on the 1 mark. by shifting the limits you are actually only seeing half of it. Two things to do: Tell the bar exactly how wide it shall be and limit the x-axes accordingly.
charts[i].Series[0].CustomProperties = "PointWidth = 1"; // One bar takes a width of 1 unit on the x-axis
charts[i].ChartAreas[0].AxisX.Minimum = 0.5; // change!
charts[i].ChartAreas[0].AxisX.Maximum = 1.5; // change!
Related
I'm trying to create in c# in Visual studio a nice way to show the minimum, maximum and actual value of a "variable" (Variable is a class). I was trying to use the charts to do that but I have two problems.
1) It shows in 2D and I only need 1 dimension.
2) I can't write tags on the values, in this case to show which is the minimum, the maximum and the current value.
Is there a SeriesChartType that does that?
I would appreciate ideas. Thanks!
It is not so much the chart type but the various styling options you need to play with.
Here is an example using ChartType.Point:
// no legend:
chart.Legends.Clear();
// a couple of short references:
ChartArea ca = chart.ChartAreas[0];
Series S1 = chart.Series[0];
// no y-axis:
ca.AxisY.Enabled = AxisEnabled.False;
ca.AxisY.Minimum = 0;
ca.AxisY.Maximum = 1;
// use your own values:
ca.AxisX.Minimum = 0;
ca.AxisX.Maximum = 100;
// style the ticks, use your own values:
ca.AxisX.MajorTickMark.Size = 7;
ca.AxisX.MajorTickMark.Interval = 10;
ca.AxisX.MinorTickMark.Enabled = true;
ca.AxisX.MinorTickMark.Size = 3;
ca.AxisX.MinorTickMark.Interval = 2;
// I turn the axis labels off.
ca.AxisX.LabelStyle.Enabled = false;
// If you want to show them pick a reasonable Interval!
ca.AxisX.Interval = 1;
// no gridlines
ca.AxisY.MajorGrid.Enabled = false;
ca.AxisX.MajorGrid.Enabled = false;
// the most logical type
// note that you can change colors, sizes, shaps and markerstyles..
S1.ChartType = SeriesChartType.Point;
// display x-value above; make sure you have enough room!
S1.Label = "#VALX";
// a few test data:
S1.Points.AddXY(1, 0.1);
S1.Points.AddXY(11, 0.1);
S1.Points.AddXY(17, 0.1);
S1.Points.AddXY(81, 0.1);
Note that you can play with the Series.SmartLabelStyle to display values when they are too dense!
I add the DataPoints at an y-value of 0.1. You can change it to move the points up or down a little..
I am trying to plot a file's byte count over a C# WinForms bar graph. As such, the X-axis will have values 0-255 (if greater than zero) and the Y-axis varies upon the length of the file and the byte distribution. The code is as follows:
for (int i = 0; i < byteDistribution.Count; i++)
{
if (byteDistribution[i] > 0)
{
Series series = new Series(i.ToString());
series.Points.AddXY(i, byteDistribution[i]);
// PointWidth has no affect?
series.SetCustomProperty("PointWidth", "1");
this.crtBytes.Series.Add(series);
}
Questions:
This works well but the way the chart is shown is not to my liking.
I would like each bar to fill in as much space as possible (ie. no
margin / border). From what I've read elsewhere it was suggested to
use PointWidth or PixelPointWidth but none of these approaches is
working.
Is there a way to remove the inner black grid lines from
showing? Ideally, I would like the bottom X-axis numbering to remain just the same, but remove the grid lines.
For removing the gaps:
series["PointWidth"] = "1";
For removing the gridlines:
chartArea.AxisX.MajorGrid = new FChart.Grid {Enabled = false};
chartArea.AxisY.MajorGrid = new FChart.Grid { Enabled = false };
UPDATE:
I think your problem is that you create a new series for each data point. So you also get the "color effect". Just create ONE series, add it to the chart area and add all data points to this series.
Series series = new Series();
this.crtBytes.Series.Add(series);
series.SetCustomProperty("PointWidth", "1");
for (int i = 0; i < byteDistribution.Count; i++)
{
if (byteDistribution[i] > 0)
{
series.Points.AddXY(i, byteDistribution[i]);
// PointWidth has no affect?
}
}
PointWidth property is a relative amount, try something like series["PointWidth"] = 1.25.
The black lines are called MajorGrid, use chartArea.MajorGrid.Enabled = False.
I'm trying to use the chart control on a windows form and have it working, plotting some real time data, however before the data arrives nothing is displayed. I would like to show an empty graph with an X Y of 10 30 but still have the graph auto range if values go above this.
I cannot find a property to show the "blank" graph it this possible and if so how?
thanks
You can hide all data of a Series by making its line color Transparent. If you also set its LegendText to be " " all you can see are the Axis ticks. you can control them by adding a few Points and by setting the Minimum and Maximum values:
// short reference for our dummy:
Series S0 = chart1.Series[0];
// a simple type
S0.ChartType = SeriesChartType.Line;
// set 10 point with x-values going from 0-100 and y-values going from 1-10:
for (int i = 0; i < 100; i +=10) S0.Points.AddXY(i , i / 10);
// or add only a few, e.g. the first and last points:
//S0.Points.AddXY(100, 10);
//S0.Points.AddXY(0, 10);
// hide the line:
S0.Color = Color.Transparent;
// hide the legend text (it will still take up a little space, though)
S0.LegendText = " ";
// limit the axis to the target values
chart1.ChartAreas[0].AxisX.Maximum = 100;
chart1.ChartAreas[0].AxisX.Minimum = 0;
The result looks like an empty chart:
Hi I am currently trying to get the bars to be aligned over the the numbers in the x axis. As you can see in the image below, my bars in the chart seem to align to the left or right.
[URL=http://imageshack.us/photo/my-images/528/stackoverflowexample.png/][IMG=http://img528.imageshack.us/img528/19/stackoverflowexample.png][/IMG][/URL]
Uploaded with [URL=http://imageshack.us]ImageShack.us[/URL]
I was wondering if there was a way using lines of code to make them align directly over the numbers 1, 2 and 3?
I also wondering if it is possible to change 1, 2 and 3 into the name temprature, vcc and light??
I have done some looking into it and am unable to find how to correct this problem (as you can see from the commented out lines of code were i have tried) and this is why i have turned to you guys.I have posted my code below ( slightly modified so it will work in any c# without my variables).
thanks for takin the time to read this
chart1.ChartAreas.Add("area");
//chart1.ChartAreas["area"].AxisX.Minimum = 0;
//chart1.ChartAreas["area"].AxisX.Maximum = 2;
//chart1.ChartAreas["area"].AxisX.Interval = 1;
//chart1.ChartAreas["area"].AxisX.IntervalAutoMode;
chart1.ChartAreas["area"].AxisY.Minimum = 0;
chart1.ChartAreas["area"].AxisY.Maximum = sumLight + 100;
chart1.ChartAreas["area"].AxisY.Interval = 50;
chart1.ChartAreas["area"].AxisY.Title = "Average Value";
//chart1.ChartAreas["area"].AxisX.Title = "Speed (m/s)";
chart1.Series.Add("Temprature");
chart1.Series.Add("VCC");
chart1.Series.Add("Light");
chart1.Series["Temprature"].Color = Color.Red;
chart1.Series["VCC"].Color = Color.Green;
chart1.Series["Light"].Color = Color.Yellow;
chart1.Series["Temprature"].Points.AddXY(1, 78.32);
chart1.Series["VCC"].Points.AddXY(2, 3.92);
chart1.Series["Light"].Points.AddXY(3, 333);
chart1.Series["Temprature"].IsValueShownAsLabel = true;
chart1.Series["VCC"].IsValueShownAsLabel = true;
chart1.Series["Light"].IsValueShownAsLabel = true;
chart1.Legends.Add("legend");
chart1.Titles.Add("Average for Temperature, Light & VCC using timestamp");
chart1.Visible = true;
I guess you might come to something by inserting empty datapoints.
So this block :
chart1.Series["Temprature"].Points.AddXY(1, 78.32);
chart1.Series["VCC"].Points.AddXY(2, 3.92);
chart1.Series["Light"].Points.AddXY(3, 333);
Should become
chart1.Series["Temprature"].Points.AddXY(1, 78.32);
chart1.Series["Temprature"].Points.Add(new DataPoint(2,0){IsEmpty=true});
chart1.Series["Temprature"].Points.Add(new DataPoint(3,0){IsEmpty=true});
chart1.Series["VCC"].Points.Add(new DataPoint(1,0){IsEmpty=true});
chart1.Series["VCC"].Points.AddXY(2, 3.92);
chart1.Series["VCC"].Points.Add(new DataPoint(3,0){IsEmpty=true});
chart1.Series["Light"].Points.Add(new DataPoint(1,0){IsEmpty=true});
chart1.Series["Light"].Points.Add(new DataPoint(2,0){IsEmpty=true});
chart1.Series["Light"].Points.AddXY(3, 333);
Also, you might try having only one serie with 3 colored DataPoints :
chart1.Series[0].Points.AddXY("Temprature", 78.32);
chart1.Series[0].Points[chart1.Series[0].Points.Count - 1].Color = Color.Red;
chart1.Series[0].Points.AddXY("VCC", 3.92);
chart1.Series[0].Points[chart1.Series[0].Points.Count - 1].Color = Color.Green;
chart1.Series[0].Points.AddXY("Light", 333);
chart1.Series[0].Points[chart1.Series[0].Points.Count - 1].Color = Color.Yellow;
So, I am trying to plot the graph and I have 3 fastlines in the Tchart, It seems like the graph are correct but there is something I need to set with labels of axes, What I get is this,
[my graph with x labels as 0 0 0 0 1 1 1 1 ]
http://s8.postimage.org/t7tappekl/image.png
[I want something like this]
http://s7.postimage.org/amltkb917/untitled.png
and what I want to get is something like this , the actual x labels as these . X labels are seconds.
I have already tried setting the valueformat for series and chart lablels. It did not work,
How should I do this? and also I am trying to zoom and scroll up the y axes to set the focus like the image 2. the y graph always starts from 0 , but initially is there any way to set the focus on starting point i.e.81
Thank you so much!
You can set desired increment for the bottom axis labels using the so called Increment property, for example:
tChart1.Axes.Bottom.Increment = 0.1;
For changing axes range you can use SetMinMax or Minimum and Maximum properties:
tChart1.Axes.Left.SetMinMax(50, 100);
or
tChart1.Axes.Left.AutomaticMinimum = false;
tChart1.Axes.Left.Minimum = 50;
tChart1.Axes.Left.AutomaticMaximum = false;
tChart1.Axes.Left.Maximum = 100;
Finally, you can change the chart view perspective changing some of the following properties:
tChart1.Aspect.View3D = true;
tChart1.Aspect.Orthogonal = false;
tChart1.Aspect.Chart3DPercent = 50;
tChart1.Aspect.Elevation = 0;
tChart1.Aspect.Rotation = 345;
tChart1.Aspect.Perspective = 50;
BTW, you'll find more information about axis settings in tutorial 4. Tutorials can be found a TeeChart's program group.