/// <summary>
/// 获取所有绘制的线
/// </summary>
/// <returns>绘制的线数组</returns>
public CharLine[] GetAllLine()
{
this.CheckInvokeRequired();
CharLine[] lines = new CharLine[this._htLine.Count];
this._htLine.Values.CopyTo(lines, 0);
return(lines);
}
/// <summary>
/// 移除指定绘制的线
/// </summary>
/// <param name="line">线</param>
public void RemoveLine(CharLine line)
{
if (line == null)
{
throw new ArgumentNullException(nameof(line));
}
this.RemoveLineById(line.Id);
}
/// <summary>
/// 添加要绘制的线
/// </summary>
/// <param name="line">要绘制的线</param>
public void AddLine(CharLine line)
{
this.CheckInvokeRequired();
if (line == null)
{
throw new ArgumentNullException(nameof(line));
}
if (this._htLine.ContainsKey(line.Id))
{
throw new ArgumentException($"已存在标识为[{line.Id}]的线");
}
this._htLine.Add(line.Id, line);
this.CustomerPaint();
}
private void LeftToRightDrawLine(Graphics graphics, CharLine channel, float pointDistance, float width, float height)
{
//绘制使用率线
var values = channel.ValueList;
if (values.Count > 1)
{
var usageLinePen = channel.LinePen;
var points = new PointF[values.Count];
float vx = 0, vy;
for (int i = values.Count - 1; i >= 0; i--)
{
vy = height - values[i] * height / 100;
points[i] = new PointF(vx, vy);
vx = vx + pointDistance;
if (vx - width > _PRE)
{
break;
}
}
graphics.DrawLines(usageLinePen, points);
}
}