/// <summary>
/// 默认构造函数
/// </summary>
public TimePeriodChartControl()
{
InitializeComponent();
Origin = new Point(50, 70);
this.UserToScreenCoordConverter = new Geo.Coordinates.ScreenCoordConverter(this.pictureBox1.Size);
UserChartGraphics = new UserChartGraphics(this.UserToScreenCoordConverter);
this.pictureBox1.MouseWheel += pictureBox1_MouseWheel;
}
/// <summary>
/// 绘制内容带
/// </summary>
private void DrawBelts()
{
int intervalOfSat = 2;
double epochCountPerPixe = this.EpochCount * 1.0 / CoordWidth;
double satCountPerPixe = this.SatCount * 1.0 / CoordHeight;
int beltHeight = CoordHeight / SatCount - intervalOfSat;//减一，为留空格好看
int drawingBeltHeight = Math.Min(beltHeight, 6);
Pen penL1 = new Pen(Color.Blue, 2);
Pen penL2 = new Pen(Color.FromArgb(100, 200, 50), 2);
for (int i = 1; i <= SatCount; i++)
{
int y = GetYCoord(i - 1); //扣除epoch，从1开始
List <int> xCoord = new List <int>();
int lastX = 0; //避免重复加入
for (int epoch = MinEpoch; epoch < MaxEpoch; epoch++)
{
var row = DataTable.Rows[epoch];
if (!row.IsNull(i))
{
var x = GetXCoord(epoch);
if (lastX == x)
{
continue;
}
xCoord.Add(x);
lastX = x;
}
}
Pen pen = null;
if (i % 2 == 0)
{
pen = penL1;
}
else
{
pen = penL2;
}
UserChartGraphics.DarwBelt(pen, y, xCoord.ToArray(), drawingBeltHeight);
}
}
/// <summary>
/// 绘制Y轴标签
/// </summary>
private void DrawYLabels()
{
//绘制Y轴标签，纵轴，卫星号
int minYDiffer = 10;
int prevYPixe = -minYDiffer;
for (int i = 1; i <= SatCount; i++)
{
int y = GetYCoord(i - 1);//扣除epoch，从1开始
int x = Origin.X / 2;
var pos = new Point(x, y);;
if (y - prevYPixe >= minYDiffer)
{
UserChartGraphics.DrawLabel(DataTable.Columns[i].ToString(), pos);
prevYPixe = y;
}
}
}
/// <summary>
/// 绘制X轴标签
/// </summary>
private void DrawXLables()
{
//绘制历元标签
int prevX = -50;
int minXDiffer = 20;
for (int epcoh = MinEpoch; epcoh < MaxEpoch; epcoh++)
{
int y = Origin.Y / 2;
int x = GetXCoord(epcoh);
var pos = new Point(x, y);
if ((pos.X - prevX) >= minXDiffer)
{
prevX = pos.X;
var xlabel = GetIndexLabelX(epcoh);
UserChartGraphics.DrawLabel(xlabel, pos, -90);
}
}
}
