Develop Reference

Object not shown on Canvas (WPF Application)

In this Application, i have a car class with a method called Spawn (which should draw the object on a Canvas which i defined in the XAML file). I call the Method in MainWindow, but when I run my program, there is no car being drawn onto the Canvas.
Here is the Spawn method:
public void Spawn(Canvas cvs)
{
cvs = new Canvas();
cvs.Children.Clear();
carBody.Width = 70;
carBody.Height = 120;
carBody.Background = new SolidColorBrush(Color);
Canvas.SetLeft(carBody, SpawnLocation.X);
Canvas.SetTop(carBody, SpawnLocation.Y);
Rectangle[] tires = new Rectangle[4];
Rectangle[] windows = new Rectangle[2];
Label lblBrand = new Label();
RotateTransform rotation = new RotateTransform();
// Reifen
tires[0] = new Rectangle()
{
Fill = Brushes.Black,
Width = 20,
Height = 30
};
Canvas.SetLeft(tires[0], -9);
Canvas.SetTop(tires[0], 18);
tires[1] = new Rectangle()
{
Fill = Brushes.Black,
Width = 20,
Height = 30
};
Canvas.SetLeft(tires[1], 61);
Canvas.SetTop(tires[1], 18);
tires[2] = new Rectangle()
{
Fill = Brushes.Black,
Width = 20,
Height = 30
};
Canvas.SetLeft(tires[2], -9);
Canvas.SetTop(tires[2], 80);
tires[3] = new Rectangle()
{
Fill = Brushes.Black,
Width = 20,
Height = 30
};
Canvas.SetLeft(tires[3], 61);
Canvas.SetTop(tires[3], 80);
// Fenster
windows[0] = new Rectangle() // Front
{
Fill = Brushes.White,
Width = 50,
Height = 40
};
Canvas.SetLeft(windows[0], 0);
Canvas.SetTop(windows[0], 0);
windows[1] = new Rectangle() // rear
{
Fill = Brushes.White,
Width = 50,
Height = 50
};
Canvas.SetLeft(windows[1], 0);
Canvas.SetTop(windows[1], 0);
// Label Automarke
lblBrand.Width = 40;
lblBrand.Height = 23;
lblBrand.Content = Brand;
// Add2Canvas
for (int i = 0; i < tires.Length; i++)
carBody.Children.Add(tires[i]);
for (int i = 0; i < windows.Length; i++)
carBody.Children.Add(windows[i]);
carBody.Children.Add(lblBrand);
if (Direction == "nord")
{
rotation.Angle = 0;
rotation.CenterX = SpawnLocation.X;
rotation.CenterY = SpawnLocation.Y;
carBody.RenderTransform = rotation;
}
else if (Direction == "süd")
{
rotation.Angle = 180;
rotation.CenterX = SpawnLocation.X;
rotation.CenterY = SpawnLocation.Y;
carBody.RenderTransform = rotation;
}
else if (Direction == "west")
{
rotation.Angle = 90;
rotation.CenterX = SpawnLocation.X;
rotation.CenterY = SpawnLocation.Y;
carBody.RenderTransform = rotation;
}
else if (Direction == "ost")
{
rotation.Angle = 270;
rotation.CenterX = SpawnLocation.X;
rotation.CenterY = SpawnLocation.Y;
carBody.RenderTransform = rotation;
}
cvs.Children.Add(carBody);
}
Calling the methodMainWindow:
Car car1;
public MainWindow()
{
InitializeComponent();
car1 = new Car("Audi", Colors.Red);
car1.Direction = "west";
car1.SpawnLocation = new Point(550, 340);
car1.Spawn(gameScreen);
}
Thanks in advance!

Fixed it! I initialized the argmument of my Spawn method, it now works after I deleted it.
My method looked like this first:
public void Spawn(Canvas cvs)
{
cvs = new Canvas();
cvs.Children.Clear();
carBody.Width = 70;
I initialized my the Argument, but since i don't wanna create a new Canvas, i deleted these two first lines of my method.
public void Spawn(Canvas cvs)
{
carBody.Width = 70;
carBody.Height = 120;
carBody.Background = new SolidColorBrush(Color);
Now its working fine.

Many chart areas in one column doesn't work

Intro:
This pseudocode is based on Multiple chart areas in one column, however, when I enable many chart areas and all of them are aligned one above the other, the graphic height is getting lower while the axis X labels are getting away from the chart.
Let's see this in a deep way:
I have a panel which contains inside itself the chart.
Every chart area makes reference to a selected resource, so in this case, we have 5 chart areas as 5 resources selected on the checked list box.
From the third resource, I add 300 as the minimum scroll value of the panel, so the size of the chart increases, and the chart areas do not look excessively different in height every time we add a chart area.
Chart view for 13 Resources:
Chart view for 18 Resources:
Chart view for 21 resources:
And finally, chart view for 26 or more resoures:
Code:
Auxiliar method to clone a chart area
private ChartArea CloneChartArea(ChartArea chartArea, string resultName)
{
var result = new ChartArea();
result.Name = resultName;
result.AxisX.MajorTickMark.LineColor = chartArea.AxisX.MajorTickMark.LineColor;
result.AxisY.MajorTickMark.LineColor = chartArea.AxisY.MajorTickMark.LineColor;
result.AxisX.LabelStyle.Font = chartArea.AxisX.LabelStyle.Font;
result.AxisY.LabelStyle.Font = chartArea.AxisY.LabelStyle.Font;
result.AxisX.LabelStyle.ForeColor = chartArea.AxisX.LabelStyle.ForeColor;
result.AxisY.LabelStyle.ForeColor = chartArea.AxisY.LabelStyle.ForeColor;
/// The following lines allow us to paint multiple chart areas in one column
result.AlignWithChartArea = chartArea.Name;
result.AlignmentStyle = AreaAlignmentStyles.Position;
result.AlignmentOrientation = AreaAlignmentOrientations.Vertical;
return result;
}
Auxiliar method to set axis y label
private ChartArea SetAxisLabelY(ChartArea chartArea, string ylabel, Color foreColor, float fontSize)
{
chartArea.AxisY.Title = ylabel;
chartArea.AxisY.TitleAlignment = StringAlignment.Center;
chartArea.AxisY.TitleFont = new Font("Century Gothic", fontSize, FontStyle.Regular, GraphicsUnit.Point, ((byte)(0)));
chartArea.AxisY.TitleForeColor = foreColor;
return chartArea;
}
Main method to set chart values:
private void SetChartValues(IEnumerable<IGrouping<int, ResourceDailyCalendar>> data)
{
while (chart1.Series.Any())
{
chart1.Series.RemoveAt(0);
if (chart1.ChartAreas.Count > 1)
{
chart1.ChartAreas.RemoveAt(1);
}
}
panel5.AutoScrollMinSize = new Size(0, 0);
if (data != null && data.Count() > 0)
{
var resourcesNames = data.SelectMany(group => group).Select(element => element.Resource).Distinct().ToList();
var chartAreaIndex = 1;
foreach (var resourceName in resourcesNames)
{
var chartAreaName = string.Format("ChartArea{0}", chartAreaIndex);
ChartArea chartArea = chart1.ChartAreas.Last();
if (!chart1.ChartAreas.Any(ca => ca.Name.Equals(chartAreaName)))
{
chartArea = CloneChartArea(chartArea, resultName: chartAreaName);
chart1.ChartAreas.Add(chartArea);
if (chartAreaIndex > 3)
{
var minScroll = panel5.AutoScrollMinSize;
if (minScroll.IsEmpty)
{
minScroll.Height = panel5.Size.Height;
}
minScroll.Height += 300;
panel5.AutoScrollMinSize = minScroll;
}
}
chartArea = SetAxisLabelY(chartArea, resourceName, Color.Yellow, 10F);
var totalSerie = new Series()
{
Name = $"{resourceName} - Total",
ChartArea = chartArea.Name,
ChartType = SeriesChartType.StackedColumn,
Color = Color.Black,
BorderWidth = 1,
BorderDashStyle = ChartDashStyle.Solid,
IsVisibleInLegend = false
};
var allowedSerie = new Series()
{
Name = $"{resourceName} - Allowed",
ChartArea = chartArea.Name,
ChartType = SeriesChartType.StackedColumn,
Color = Color.Gray,
BorderWidth = 1,
BorderDashStyle = ChartDashStyle.Solid,
IsVisibleInLegend = false
};
var currentSerie = new Series()
{
Name = $"{resourceName} - Current",
ChartArea = chartArea.Name,
ChartType = SeriesChartType.StackedColumn,
BorderWidth = 1,
BorderDashStyle = ChartDashStyle.Solid,
IsVisibleInLegend = false
};
var x = 0;
var maxValue = 0.0;
foreach (var group in data)
{
string axisLabel;
if (group.Count() == 1) /// Agrupados por día
{
if (group.First().Resource != resourceName) continue;
axisLabel = group.First().Date.Value.ToShortDateString();
}
else
{
if (group.Count() > 1 && group.Count() < 8) /// Agrupados por semanas
{
axisLabel = group.First().YYYYWW.ToString();
}
else /// Agrupados por meses
{
axisLabel = group.First().YYYYMM.ToString();
}
}
var effectiveWorkingHours = group.Where(i => i.Resource == resourceName).Sum(i => i.EffectiveWorkingHours);
currentSerie.Points.AddXY(x, effectiveWorkingHours);
currentSerie.Points[x].AxisLabel = axisLabel;
maxValue = effectiveWorkingHours > maxValue ? effectiveWorkingHours : maxValue;
var workingHours = group.Where(i => i.Resource == resourceName).Sum(i => i.WorkingHours);
maxValue = workingHours > maxValue ? workingHours : maxValue;
workingHours -= effectiveWorkingHours;
allowedSerie.Points.AddXY(x, workingHours);
allowedSerie.Points[x].AxisLabel = axisLabel;
var periodTotalHours = group.Where(i => i.Resource == resourceName).Sum(i => i.PeriodTotalHours);
maxValue = periodTotalHours > maxValue ? periodTotalHours : maxValue;
periodTotalHours -= (workingHours + effectiveWorkingHours);
totalSerie.Points.AddXY(x, periodTotalHours);
totalSerie.Points[x].AxisLabel = axisLabel;
x++;
}
chart1.Series.Add(currentSerie);
chart1.Series.Add(allowedSerie);
chart1.Series.Add(totalSerie);
chart1.ChartAreas.First(ca => ca.Name == chartArea.Name).AxisY.Maximum = maxValue * 1.1;
chartAreaIndex++;
}
/// Resize de chart
var currentHeight = 0;
var chartAreasCounter = chart1.ChartAreas.Count();
foreach (ChartArea ca in chart1.ChartAreas)
{
ca.AxisY.Minimum = 0;
ca.Position.Height = 100 / chartAreasCounter;
ca.Position.Y = currentHeight;
ca.Position.X = 0;
ca.Position.Width = 100;
ca.AxisX.MaximumAutoSize = 5;
currentHeight += 100 / chartAreasCounter;
}
chart1.ApplyPaletteColors();
chart1.Update();
System.Windows.Forms.Application.DoEvents();
}
}
Could anyone help me how to prevent this please?

i need audio frequency response graph c#

i need logarithm x-axis based linechart for audio frequency magnitude response for c# winform , i have tested default chart and livechart but c'ant align x axis attached photo like . anybody know please help me.
sorry for my bad english
Live Chart Code :
cartesianChart1.AxisY.Add(new Axis
{
Title = "Gain",
MaxValue = 10,
MinValue = -15,
Separator = new Separator
{
Stroke = new SolidColorBrush(System.Windows.Media.Color.FromRgb(46, 35, 35))
}
});
cartesianChart1.AxisX.Add(new LogarithmicAxis
{
Title = "Freq",
LabelFormatter = (value) => (Math.Pow(10, value).ToString("N0")+"Hz"),
Base = 10,
Separator = new Separator
{
Step=0,
Stroke = new SolidColorBrush(System.Windows.Media.Color.FromRgb(35, 35, 35))
},
});
cartesianChart1.BackColor = System.Drawing.Color.FromArgb(0, 0, 0);
cartesianChart1.DisableAnimations = true;
cartesianChart1.Hoverable = false;
cartesianChart1.DataTooltip = null;
var Datapoint = new ChartValues<ObservablePoint>{
new ObservablePoint(1, 5),
new ObservablePoint(5, -4),
new ObservablePoint(10, 6),
new ObservablePoint(100, 4),
new ObservablePoint(150, 7),
new ObservablePoint(1000, 2),
new ObservablePoint(10000, 8),
new ObservablePoint(15000, 2),
new ObservablePoint(20000, -7),
};
cartesianChart1.Series = new SeriesCollection(Mappers.Xy<ObservablePoint>()
.X(point => Math.Log10(point.X))
.Y(point => point.Y))
{
new LineSeries
{
PointGeometry = null,
PointGeometrySize = 0,
Values = Datapoint,
}
};
Live Chart Display :
Default Chart Code :
var r = new Random();
float val;
var chart = chart1.ChartAreas[0];
chart.AxisX.IntervalType = DateTimeIntervalType.Number;
chart.AxisX.LabelStyle.Format = "";
chart.AxisY.LabelStyle.Format = "";
chart.AxisY.LabelStyle.IsEndLabelVisible = true;
chart.AxisX.Minimum = 0;
chart.AxisX.Maximum = 20000;
chart.AxisY.Minimum = -15;
chart.AxisY.Maximum = 10;
chart.AxisX.Interval = 500;
chart.AxisY.Interval = 3;
chart.BackColor = Color.Black;
chart1.Series.Add("Sakthi");
chart1.Series["Sakthi"].ChartType = SeriesChartType.Spline;
chart1.Series["Sakthi"].Color = Color.Yellow;
chart1.Series["Sakthi"].BorderWidth = 3;
chart1.Series["Sakthi"].BorderColor = Color.Black;
chart1.ChartAreas[0].AxisX.MajorGrid.LineDashStyle = System.Windows.Forms.DataVisualization.Charting.ChartDashStyle.Solid;
chart1.ChartAreas[0].AxisX.MajorGrid.LineColor = Color.FromArgb(35, 35, 35);
chart1.ChartAreas[0].AxisY.MajorGrid.LineColor = Color.FromArgb(35, 35, 35);
chart1.ChartAreas[0].AxisY.LabelStyle.ForeColor = Color.White;
chart1.ChartAreas[0].AxisX.LabelStyle.ForeColor = Color.White;
chart1.Legends[0].Enabled = false;
chart.AxisY.StripLines.Add(new StripLine
{
BorderDashStyle = ChartDashStyle.Dot,
BorderColor = Color.White,
StripWidth = 0
});
chart1.Series.Clear();
chart1.Series.Add("Sakthi");
chart1.Series["Sakthi"].ChartType = SeriesChartType.Spline;
chart1.Series["Sakthi"].Color = Color.Yellow;
chart1.Series["Sakthi"].BorderWidth = 3;
chart1.Series["Sakthi"].BorderColor = Color.Black;
for (int i = 0; i < 10; i++)
{
val = r.Next(-15, 10);
chart1.Series["Sakthi"].Points.AddXY(i*2000, val);
}
Default Chart Display :
i want this this type x axis label :

How to set an interval for tickmarks?

I'm trying to have tickmarks at an interval of 50. MajorGrid works fine, but I can not find any way to get the tickmarks of the yAxis align to the gridlines of the majorgrid. Currently I'm using this:
chart.ChartAreas.Add(new ChartArea("statistic")
{
AxisX = ...
AxisY = new Axis
{
MajorGrid =
new Grid
{
Enabled = true,
LineColor = Color.Black,
LineDashStyle = ChartDashStyle.Solid,
Interval = 50,
IntervalOffset = 0
},
Title = yAxisDesc,
Minimum = yAxisRange.Item1,
Maximum = yAxisRange.Item2
}
}
to get this:
I tried modifying MajorTickMark to no avail.
What do I have to change?

Try this:
private void Form1_Load(object sender, EventArgs e)
{
int xmax = 100;
chart1.ChartAreas[0].AxisX.IsLogarithmic = true;
chart1.ChartAreas[0].AxisX.MinorGrid.Enabled = true;
chart1.ChartAreas[0].AxisX.MinorGrid.Interval = 1;
chart1.ChartAreas[0].AxisY.MajorGrid.Interval = 50;
chart1.ChartAreas[0].AxisY.MajorTickMark.Interval = 50;
chart1.ChartAreas[0].AxisY.LabelStyle.Interval = 50;
for (int x = 1; x < xmax; x++)
chart1.Series[0].Points.AddXY(x, 5 * x);
}

Thanks to jstreet,
I found the following solution:
AxisY =
new Axis
{
MajorGrid =
new Grid
{
Enabled = true,
LineColor = Color.Black,
LineDashStyle = ChartDashStyle.Solid,
Interval = 50,
IntervalOffset = 0
},
Title = yAxisDesc,
Minimum = yAxisRange.Item1,
Maximum = yAxisRange.Item2,
LabelStyle = new LabelStyle{Interval = 50, Enabled=true,IntervalOffset = 0,IsEndLabelVisible = true},
MajorTickMark =
new TickMark
{
Enabled = true,
Interval = 50,
IntervalOffset = 0,
},
}
However, using only MajorTickMark or LabelStyle doesn't result in the desired chart. This is it now:

Radar chart selective label rotation in System.Web.UI.DataVisualization.Charting?

I am trying to reproduce a radar chart in ASP.NET MVC.
This is what I should have
This is what I actually have
So far, it works, the odd colors are just for development.
But the label rotation of the bottom 3 labels is quite bad, and I can't seem to find out how to rotate them properly. Anyone ?
Also, why is it setting markers in a 20 interval step, when I set 25 ?
And addtionally, just for fun, is it possible to rotate the y-axis thick markers by 22.5 degrees, as in the sample ?
Here my code:
using System.Drawing;
using System.Web.UI.DataVisualization.Charting;
// http://stackoverflow.com/questions/6047961/c-sharp-chart-rotate-labels
public FileResult RadarSample()
{
int pixelWidth = 1000;
int pixelHeight = 1000;
// Populate series data
//string[] xValues = { "France", "Canada", "Germany", "USA", "Italy", "Spain", "Russia", "Sweden", "Japan" };
string[] xValues = { "Offene Aussenpolitik", "Liberale Wirtschaftspolitik", "Restriktive Finanzpolitik", "Law & Order", "Restriktive Migrationspolitik", "Ausgebauter Umweltschutz", "Ausgebauter Sozialstaat", "Liberale Gesellschaft" };
double[] yValues = { 80, 90, 45, 75, 37.5, 40, 28, 54 };
//double[] yValues = { 65.62, 75.54, 60.45, 34.73, 85.42, 55.9, 63.6, 55.1, 77.2 };
//double[] yValues2 = { 76.45, 23.78, 86.45, 30.76, 23.79, 35.67, 89.56, 67.45, 38.98 };
var Chart1 = new System.Web.UI.DataVisualization.Charting.Chart();
Chart1.BackColor = System.Drawing.Color.HotPink;
var area = new System.Web.UI.DataVisualization.Charting.ChartArea("ca1");
area.Area3DStyle.Enable3D = false;
area.AxisX.Interval = 1;
area.BackColor = System.Drawing.Color.Red;
//area.AxisY.Interval = 5;
area.AxisY.MajorTickMark.Enabled = false;
area.AxisY.MajorGrid.LineColor = Color.Gray;
area.AxisY.MajorGrid.Interval = 25;
area.AxisY.MinorTickMark.Enabled = false;
area.AxisY.MinorGrid.Interval = 5;
area.AxisY.MinorGrid.LineColor = Color.Yellow;
Chart1.ChartAreas.Add(area);
var series1 = new System.Web.UI.DataVisualization.Charting.Series();
var series2 = new System.Web.UI.DataVisualization.Charting.Series();
series1.Name = "Series1";
series2.Name = "Series2";
//series1.Color = System.Drawing.Color.Yellow;
series1.Color = System.Drawing.Color.FromArgb(100, 0, 0, 255);
//series1.SmartLabelStyle.Enabled = true;
//series1.LabelAngle = 90;
//Legend legend = new Legend();
////legend.Name = "mylegend";
//legend.Title = "Hello world";
//legend.BackColor = Color.Transparent;
//legend.BackColor = Color.Tomato;
//Chart1.Legends.Add(legend);
// series1.Legend = "mylegend";
series1.LegendText = "A";
series2.LegendText = "B";
// series1.Label = "kickme";
// series2.Label = "bar";
//series1.ChartArea = "ca1";
series1.ChartType = System.Web.UI.DataVisualization.Charting.SeriesChartType.Radar;
series2.ChartType = System.Web.UI.DataVisualization.Charting.SeriesChartType.Radar;
series1.ChartArea = "ca1";
series2.ChartArea = "ca1";
Chart1.Series.Add(series1);
//Chart1.Series.Add(series2);
Chart1.Series["Series1"].Points.DataBindXY(xValues, yValues);
//Chart1.Series["Series2"].Points.DataBindXY(xValues, yValues2);
string[] astrRadarStyleList = new string[] { "Area", "Line", "Marker" }; // Fill, Line, or point
string[] astrAreaDrawingStyleList = new string[] { "Circle", "Polygon" }; // Shape
string[] astrLabelStyleList = new string[] { "Circular", "Radial", "Horizontal" };
string strRadarStyle = astrRadarStyleList[0];
string strAreaDrawingStyle = astrAreaDrawingStyleList[0];
string strLabelStyle = astrLabelStyleList[0];
Chart1.Width = System.Web.UI.WebControls.Unit.Pixel(pixelWidth);
Chart1.Height = System.Web.UI.WebControls.Unit.Pixel(pixelHeight);
// Set radar chart style
Chart1.Series["Series1"]["RadarDrawingStyle"] = strRadarStyle; // RadarStyleList.SelectedItem.Text;
//Chart1.Series["Series2"]["RadarDrawingStyle"] = strRadarStyle; // RadarStyleList.SelectedItem.Text;
if (strRadarStyle == "Area")
{
Chart1.Series["Series1"].BorderColor = Color.FromArgb(100, 100, 100);
Chart1.Series["Series1"].BorderWidth = 1;
// Chart1.Series["Series2"].BorderColor = Color.FromArgb(100, 100, 100);
// Chart1.Series["Series2"].BorderWidth = 1;
}
else if (strRadarStyle == "Line")
{
Chart1.Series["Series1"].BorderColor = Color.Empty;
Chart1.Series["Series1"].BorderWidth = 2;
// Chart1.Series["Series2"].BorderColor = Color.Empty;
// Chart1.Series["Series2"].BorderWidth = 2;
}
else if (strRadarStyle == "Marker")
{
Chart1.Series["Series1"].BorderColor = Color.Empty;
// Chart1.Series["Series2"].BorderColor = Color.Empty;
}
// Set circular area drawing style
Chart1.Series["Series1"]["AreaDrawingStyle"] = strAreaDrawingStyle; // AreaDrawingStyleList.SelectedItem.Text;
//Chart1.Series["Series2"]["AreaDrawingStyle"] = strAreaDrawingStyle; // AreaDrawingStyleList.SelectedItem.Text;
// Set labels style
Chart1.Series["Series1"]["CircularLabelsStyle"] = strLabelStyle; // LabelStyleList.SelectedItem.Text;
//Chart1.Series["Series2"]["CircularLabelsStyle"] = strLabelStyle; //LabelStyleList.SelectedItem.Text;
return Chart2Image(Chart1);
}
public FileResult Chart2Image(System.Web.UI.DataVisualization.Charting.Chart chart)
{
using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
{
chart.SaveImage(ms, System.Web.UI.DataVisualization.Charting.ChartImageFormat.Png);
ms.Seek(0, System.IO.SeekOrigin.Begin);
return File(ms.ToArray(), "image/png", "mychart.png");
} // End Using ms
}

Try this for text direction of labels:
Chart1.Series["Series1"]["CircularLabelsStyle"] = "Horizontal";