/// <summary>创建矩形范围（由点集合，可以累加创建）
/// </summary>
/// <param name="pPoints">点集</param>
public bool Create(clss_Points pPoints)
{
clss_Point pPoint = null;
double dMax_X = m_dRight == 0 ? double.MinValue : m_dRight;
double dMin_X = m_dLeft == 0 ? double.MaxValue : m_dLeft;
double dMax_Y = m_dBottom == 0 ? double.MinValue : m_dBottom;
double dMin_Y = m_dTop == 0 ? double.MaxValue : m_dTop;
double dDelta_W = 0, dDelta_H = 0;
int nLength = 0;
try
{
//循环所有获取XY最大最小值
nLength = pPoints.p_Points.Count;
for (int i = 0; i < nLength; i++)
{
pPoint = pPoints.p_Points[i];
//获取X最大最小值
if (dMax_X < pPoint.p_X)
{
dMax_X = pPoint.p_X;
}
else if (dMin_X > pPoint.p_X)
{
dMin_X = pPoint.p_X;
}
//获取X最大最小值
if (dMax_Y < pPoint.p_Y)
{
dMax_Y = pPoint.p_Y;
}
else if (dMin_Y > pPoint.p_Y)
{
dMin_Y = pPoint.p_Y;
}
}
//放大边界，避免画图有不可见部分
dDelta_W = (dMax_X - dMin_X) * 0.05;
dDelta_H = (dMax_Y - dMin_Y) * 0.05;
//修正后的范围
m_dLeft = dMin_X - dDelta_W;
m_dTop = dMin_Y - dDelta_H;
m_dRight = dMax_X + dDelta_W;
m_dBottom = dMax_Y + dDelta_H;
m_dWidth = m_dRight - m_dLeft;
m_dHeight = Math.Abs(m_dBottom - m_dTop);
return(true);
}
catch
{
throw;
}
}
/// <summary>生成绘制文字信息，但不绘制(字符串组位置循环间隔制定XY值，支持自使用字符串字体对应高宽)
/// </summary>
/// <param name="lstStrings">字符串组</param>
/// <param name="objPoint">起始位置</param>
/// <param name="dDeltaX">X间隔值</param>
/// <param name="dDeltaY">Y间隔值</param>
/// <param name="bAuto_Position">是否在XY基础上自动增加显示文字所需的最大高宽度值，以实现自适应</param>
/// <returns></returns>
public List <clssText> GetData_Texts(List <string> lstStrings, clss_Point objPoint, double dDeltaX, double dDeltaY, bool bAuto_Position)
{
List <clssText> lstTexts = new List <clssText>();
clss_Font_Style objFontStyle = this.p_FontStyle;
double dLeft = 0, dTop = 0;
int nWidth = 0, nHeight = 0;
try
{
//计算长度和高度
clsFont.Instance().Compute_CtrlMaxWidth(lstStrings.ToArray(), objFontStyle.p_Font, this.p_objGraph, ref nWidth, ref nHeight);
//依次生成
for (int i = 0; i < lstStrings.Count; i++)
{
clssText objText = new clssText();
objText.p_Text = lstStrings[i];
//信息设置
objText.p_FontStyle = new clss_Font_Style();
objText.p_FontStyle.p_Font = objFontStyle.p_Font;
objText.p_FontStyle.p_Color = objFontStyle.p_Color;
objText.p_FontStyle.p_Format = objFontStyle.p_Format;
//位置信息
if (bAuto_Position)
{
//自动调整合适字体起始位置，依据字体样式
dTop = objPoint.p_Y + (nHeight + dDeltaY) * (i);
dLeft = objPoint.p_X + (nWidth + dDeltaX) * (i);
}
else
{
dTop = objPoint.p_Y + (dDeltaY) * (i);
dLeft = objPoint.p_X + (dDeltaX) * (i);
}
objText.p_Position = new clss_Point(objPoint.p_X, dTop, 0);
lstTexts.Add(objText);
}
//返回
return(lstTexts);
}
catch
{
throw;
}
}
/// <summary>创建矩形范围（由点集合，可以累加创建）
/// </summary>
/// <param name="pPoint">点</param>
public bool Create(clss_Point pPoint)
{
clss_Points pPoints = null;
try
{
//生成点集
pPoints = new clss_Points();
pPoints.Add(pPoint);
//调用
return(this.Create(pPoints));
}
catch
{
throw;
}
}
/// <summary>将几何对象转换为画布坐标
/// </summary>
/// <param name="pPoint">点对象</param>
/// <param name="pRect_Map">画布边框</param>
/// <returns></returns>
public virtual clss_Point Trans_ToMap(clss_Point pPoint, clssRectangle_D pRect_Map)
{
clss_Point pPoint_T = new clss_Point();
double dRatio_X, dRatio_Y;
try
{
//计算X,Y在数据框的坐标比例
dRatio_X = (pPoint.p_X - p_Left) / p_Width;
dRatio_Y = (pPoint.p_Y - p_Top) / p_Height; //上大下小
//计算画布坐标值
pPoint_T.p_X = pRect_Map.m_dLeft + dRatio_X * pRect_Map.p_Width;
pPoint_T.p_Y = pRect_Map.p_Top - dRatio_Y * pRect_Map.p_Height;
return(pPoint_T);
}
catch
{
throw;
}
}
