protected void CalcAxises()
{
if (Option.XAxisType == UIAxisType.DateTime)
{
XScale = new UIDateScale();
}
else
{
XScale = new UILinearScale();
}
YScale = new UILinearScale();
//Y轴
{
Option.GetAllDataYRange(out double min, out double max);
if (min > 0 && max > 0 && !Option.YAxis.Scale)
{
min = 0;
}
if (min < 0 && max < 0 && !Option.YAxis.Scale)
{
max = 0;
}
YScale.SetRange(min, max);
if (!Option.YAxis.MaxAuto)
{
YScale.Max = Option.YAxis.Max;
}
if (!Option.YAxis.MinAuto)
{
YScale.Min = Option.YAxis.Min;
}
YScale.AxisChange();
YLabels = YScale.CalcLabels();
}
//X轴
{
Option.GetAllDataXRange(out double min, out double max);
XScale.SetRange(min, max);
if (!Option.XAxis.MaxAuto)
{
XScale.Max = Option.XAxis.Max;
}
if (!Option.XAxis.MinAuto)
{
XScale.Min = Option.XAxis.Min;
}
XScale.AxisChange();
XLabels = XScale.CalcLabels();
}
}
private void DrawAxis(Graphics g)
{
if (Option.Grid.LeftShow)
{
g.DrawLine(ForeColor, Option.Grid.Left, Option.Grid.Top, Option.Grid.Left, Height - Option.Grid.Bottom);
}
if (Option.Grid.TopShow)
{
g.DrawLine(ForeColor, Option.Grid.Left, Option.Grid.Top, Width - Option.Grid.Right, Option.Grid.Top);
}
if (Option.Grid.RightShow)
{
g.DrawLine(ForeColor, Width - Option.Grid.Right, Option.Grid.Top, Width - Option.Grid.Right, Height - Option.Grid.Bottom);
}
if (Option.Grid.BottomShow)
{
g.DrawLine(ForeColor, Option.Grid.Left, Height - Option.Grid.Bottom, Width - Option.Grid.Right, Height - Option.Grid.Bottom);
}
float zeroPos = YScale.CalcYPixel(0, DrawOrigin.Y, DrawSize.Height);
if (zeroPos > Option.Grid.Top && zeroPos < Height - Option.Grid.Bottom)
{
if (Option.ShowZeroLine)
{
g.DrawLine(ForeColor, DrawOrigin.X, zeroPos, DrawOrigin.X + DrawSize.Width, zeroPos);
}
if (Option.ShowZeroValue)
{
SizeF sf = g.MeasureString("0", TempFont);
g.DrawString("0", TempFont, ForeColor, DrawOrigin.X - Option.YAxis.AxisTick.Length - sf.Width, zeroPos - sf.Height / 2.0f);
}
}
if (XScale == null || YScale == null || Y2Scale == null)
{
return;
}
//X Tick
{
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];
if (x < Option.Grid.Left || x > Width - Option.Grid.Right)
{
continue;
}
if (Option.XAxis.AxisLabel.Show)
{
string label;
if (Option.XAxisType == UIAxisType.DateTime)
{
if (Option.XAxis.AxisLabel.AutoFormat)
{
label = new DateTimeInt64(XLabels[i]).ToString(XScale.Format);
}
else
{
label = new DateTimeInt64(XLabels[i]).ToString(Option.XAxis.AxisLabel.DateTimeFormat);
}
}
else
{
if (Option.XAxis.AxisLabel.AutoFormat)
{
label = XLabels[i].ToString(XScale.Format);
}
else
{
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);
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)
{
g.DrawLine(ForeColor, x, DrawOrigin.Y, x, DrawOrigin.Y + Option.XAxis.AxisTick.Length);
}
if (x.Equals(DrawOrigin.X))
{
continue;
}
if (x.Equals(DrawOrigin.X + DrawSize.Width))
{
continue;
}
if (Option.XAxis.ShowGridLine)
{
using (Pen pn = new Pen(ForeColor))
{
pn.DashStyle = DashStyle.Dash;
pn.DashPattern = new float[] { 3, 3 };
g.DrawLine(pn, x, DrawOrigin.Y, x, Option.Grid.Top);
}
}
}
SizeF sfName = g.MeasureString(Option.XAxis.Name, TempFont);
g.DrawString(Option.XAxis.Name, TempFont, ForeColor,
DrawOrigin.X + (DrawSize.Width - sfName.Width) / 2.0f,
DrawOrigin.Y + Option.XAxis.AxisTick.Length + sfName.Height);
}
//Y Tick
{
double[] YLabels = Option.YAxis.HaveCustomLabels ? Option.YAxis.CustomLabels.LabelValues() : YScale.CalcLabels();
float[] labels = YScale.CalcYPixels(YLabels, DrawOrigin.Y, DrawSize.Height);
float widthMax = 0;
for (int i = 0; i < labels.Length; i++)
{
float y = labels[i];
if (y < Option.Grid.Top || y > Height - Option.Grid.Bottom)
{
continue;
}
string label = YLabels[i].ToString(YScale.Format);
SizeF sf = g.MeasureString(label, TempFont);
widthMax = Math.Max(widthMax, sf.Width);
if (Option.YAxis.AxisLabel.Show)
{
g.DrawString(label, TempFont, ForeColor, DrawOrigin.X - Option.YAxis.AxisTick.Length - sf.Width, y - sf.Height / 2.0f);
}
if (Option.YAxis.AxisTick.Show)
{
g.DrawLine(ForeColor, DrawOrigin.X, y, DrawOrigin.X - Option.YAxis.AxisTick.Length, y);
}
if (y.Equals(DrawOrigin.Y))
{
continue;
}
if (y.Equals(DrawOrigin.X - DrawSize.Height))
{
continue;
}
if (Option.YAxis.ShowGridLine)
{
using (Pen pn = new Pen(ForeColor))
{
pn.DashStyle = DashStyle.Dash;
pn.DashPattern = new float[] { 3, 3 };
g.DrawLine(pn, DrawOrigin.X, y, Width - Option.Grid.Right, y);
}
}
}
SizeF sfName = g.MeasureString(Option.YAxis.Name, TempFont);
float xx = DrawOrigin.X - Option.YAxis.AxisTick.Length - widthMax - sfName.Height / 2.0f;
float yy = Option.Grid.Top + DrawSize.Height / 2.0f;
g.DrawStringRotateAtCenter(Option.YAxis.Name, TempFont, ForeColor, new PointF(xx, yy), 270);
}
//Y2 Tick
if (Option.HaveY2)
{
double[] Y2Labels = Option.Y2Axis.HaveCustomLabels ? Option.Y2Axis.CustomLabels.LabelValues() : Y2Scale.CalcLabels();
float[] labels = Y2Scale.CalcYPixels(Y2Labels, DrawOrigin.Y, DrawSize.Height);
float widthMax = 0;
for (int i = 0; i < labels.Length; i++)
{
float y = labels[i];
if (y < Option.Grid.Top || y > Height - Option.Grid.Bottom)
{
continue;
}
if (Option.Y2Axis.AxisLabel.Show)
{
string label = Y2Labels[i].ToString(Y2Scale.Format);
SizeF sf = g.MeasureString(label, TempFont);
widthMax = Math.Max(widthMax, sf.Width);
g.DrawString(label, TempFont, ForeColor, Width - Option.Grid.Right + Option.Y2Axis.AxisTick.Length, y - sf.Height / 2.0f);
}
if (Option.Y2Axis.AxisTick.Show)
{
g.DrawLine(ForeColor, Width - Option.Grid.Right, y, Width - Option.Grid.Right + Option.YAxis.AxisTick.Length, y);
}
if (y.Equals(DrawOrigin.Y))
{
continue;
}
if (y.Equals(DrawOrigin.X - DrawSize.Height))
{
continue;
}
using (Pen pn = new Pen(ForeColor))
{
pn.DashStyle = DashStyle.Dash;
pn.DashPattern = new float[] { 3, 3 };
//g.DrawLine(pn, DrawOrigin.X, y, Width - Option.Grid.Right, y);
}
}
SizeF sfName = g.MeasureString(Option.Y2Axis.Name, TempFont);
float xx = Width - Option.Grid.Right + Option.Y2Axis.AxisTick.Length + widthMax + sfName.Height / 2.0f;
float yy = Option.Grid.Top + DrawSize.Height / 2.0f;
g.DrawStringRotateAtCenter(Option.Y2Axis.Name, TempFont, ForeColor, new PointF(xx, yy), 90);
}
}