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我需要将图表导出为图像,而不是先在WPF中显示它。所以我建立了图表代码:visifire自定义轴标签不显示
public void CreateHistogram(CalcRepository cr, int i)
{
Chart chart = new Chart();
chart.Width = 300;
chart.Height = 200;
chart.ScrollingEnabled = false;
chart.AnimationEnabled = false;
chart.TrendLines.Add(new TrendLine{Value = cr.Mean,Orientation = System.Windows.Controls.Orientation.Vertical});
chart.TrendLines.Add(new TrendLine{Value = cr.ChartTrippleNegativeStdDeviation,Orientation = System.Windows.Controls.Orientation.Vertical,LineStyle = LineStyles.Dashed});chart.TrendLines.Add(new TrendLine{Value = cr.ChartTripplePositiveStdDeviation,Orientation = System.Windows.Controls.Orientation.Vertical,LineStyle = LineStyles.Dashed});
chart.TrendLines.Add(new TrendLine{Value = cr.UpperSpecificationLimit,Orientation = System.Windows.Controls.Orientation.Vertical});
chart.TrendLines.Add(new TrendLine{Value = cr.LowerSpecificationLimit,Orientation = System.Windows.Controls.Orientation.Vertical});
chart.TrendLines[0].SetValue(Canvas.ZIndexProperty, 40);
chart.TrendLines[1].SetValue(Canvas.ZIndexProperty, 40);
chart.TrendLines[2].SetValue(Canvas.ZIndexProperty, 40);
chart.TrendLines[3].SetValue(Canvas.ZIndexProperty, 40);
chart.TrendLines[4].SetValue(Canvas.ZIndexProperty, 40);
chart.DataPointWidth = cr.DataPointWidth;
chart.Visibility = Visibility.Visible;
Axis x = new Axis();
x.AxisMaximum = cr.VisUpperBound;
x.AxisMinimum = cr.VisLowerBound;
x.AxisType = AxisTypes.Primary;
CustomAxisLabels cal = new CustomAxisLabels();
cal.Labels.Add(new CustomAxisLabel {From = cr.Mean, To = cr.Mean, Text = "Mean"});
cal.Labels.Add(new CustomAxisLabel {From = cr.ChartTrippleNegativeStdDeviation,To = cr.ChartTrippleNegativeStdDeviation,Text = "LCL"});
cal.Labels.Add(new CustomAxisLabel{From = cr.ChartTripplePositiveStdDeviation,To = cr.ChartTripplePositiveStdDeviation,Text= "UCL"});
cal.Labels.Add(new CustomAxisLabel {From = cr.UpperSpecificationLimit, To = cr.UpperSpecificationLimit , Text = "USL"});
cal.Labels.Add(new CustomAxisLabel {From = cr.LowerSpecificationLimit, To = cr.LowerSpecificationLimit, Text = "LSL"});
cal.FontSize = 10;
cal.Angle = 0;
cal.FontColor = new SolidColorBrush(Colors.Black);
cal.Enabled = true;
x.CustomAxisLabels.Add(cal);
chart.AxesX.Add(x);
var ds = new DataSeries();
var dpc = new DataPointCollection(cr.HistogramValues);
ds.DataPoints = dpc;
chart.Series.Add(ds);
ds.ZIndex = 1;
ds.Bevel = false;
ds.ShadowEnabled = false;
ds.LightingEnabled = false;
ds.Color = new SolidColorBrush(Colors.SteelBlue);
chart.BeginInit();
chart.EndInit();
chart.Measure(new Size(300, 200));
chart.Arrange(new Rect(0, 0, 300, 200));
chart.UpdateLayout();
ExportToPng(new Uri("C:\\" + i + ".png"), chart);
}
一切工作正常,除了自定义轴标签丢失。这是输出的样子:
正如你所看到的,甚至还有分配给CustomAxis标签空间,但它们没有显示。任何人有想法?
提示:AnimationEnabled已被设置为false,否则,拍照时的一系列尚未呈现 - 我花了很长时间才明白这一点。
您能否告诉我CustomAxisLabel的“From”和“To”属性中设置了哪些值? – 2013-03-11 10:18:39