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* UILineChart: X轴支持字符串显示

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Sunny 2021-12-31 15:15:15 +08:00
parent 3276cd2635
commit 47450a3880
5 changed files with 31 additions and 3 deletions
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Bin/net40/SunnyUI.Demo.exe
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Bin/net40/SunnyUI.dll
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7
SunnyUI.Demo/Charts/FLineChart.cs
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@ -219,14 +219,17 @@ namespace Sunny.UI.Demo
option.Y2Axis.AxisLabel.DecimalCount = 1;
option.Y2Axis.AxisLabel.AutoFormat = false;
option.YAxisScaleLines.Add(new UIScaleLine() { Color = Color.Red, Name = "上限", Value = 3.5 });
option.Y2AxisScaleLines.Add(new UIScaleLine() { Color = Color.Gold, Name = "下限", Value = 12, DashDot = true });
option.XAxisScaleLines.Add(new UIScaleLine() { Color = Color.Lime, Name = "3", Value = 3 });
option.XAxisScaleLines.Add(new UIScaleLine() { Color = Color.Gold, Name = "6", Value = 6 });
option.XAxis.CustomLabels = new CustomLabels(0, 2, 10);
option.XAxis.CustomLabels = new CustomLabels(1, 1, 11);
for (int i = 1; i <= 12; i++)
{
option.XAxis.CustomLabels.AddLabel(i + "月");
}
LineChart.SetOption(option);
}

11
SunnyUI/Charts/UIBarChartOption.cs
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@ -246,6 +246,17 @@ namespace Sunny.UI
{
Labels.Add(label);
}
public void ClearLabels()
{
Labels.Clear();
}
public string GetLabel(int i)
{
if (i < Labels.Count) return Labels[i];
else return string.Empty;
}
}
public class UIAxisLabel

16
SunnyUI/Charts/UILineChart.cs
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@ -26,6 +26,8 @@
* 2021-10-14: V3.0.8 修改图线显示超出范围的问题
* 2021-12-30: V3.0.9 增加双Y坐标轴
* 2021-12-31: V3.0.9 增加坐标线、图线边框等是否显示的设置
* 2021-12-31: V3.0.9 增加自定义坐标轴刻度
* 2021-12-31: V3.0.9 X轴支持字符串显示
******************************************************************************/
using System;
@ -271,6 +273,7 @@ namespace Sunny.UI
double[] XLabels = Option.XAxis.HaveCustomLabels ? Option.XAxis.CustomLabels.LabelValues() : XScale.CalcLabels();
float[] labels = XScale.CalcXPixels(XLabels, DrawOrigin.X, DrawSize.Width);
float xr = 0;
for (int i = 0; i < labels.Length; i++)
{
float x = labels[i];
@ -294,8 +297,19 @@ namespace Sunny.UI
label = XLabels[i].ToString("F" + Option.XAxis.AxisLabel.DecimalCount);
}
if (Option.XAxis.HaveCustomLabels && Option.XAxis.CustomLabels.GetLabel(i).IsValid())
{
label = Option.XAxis.CustomLabels.GetLabel(i);
}
SizeF sf = g.MeasureString(label, TempFont);
g.DrawString(label, TempFont, ForeColor, x - sf.Width / 2.0f, DrawOrigin.Y + Option.XAxis.AxisTick.Length);
float xx = x - sf.Width / 2.0f;
if (xx > xr && xx + sf.Width < Width)
{
xr = xx + sf.Width;
g.DrawString(label, TempFont, ForeColor, xx, DrawOrigin.Y + Option.XAxis.AxisTick.Length);
}
}
if (Option.XAxis.AxisTick.Show)