/// <summary>
/// 捕捉公交站点
/// Snap the bus stops
/// </summary>
public void SnapPoint()
{
try
{
if (m_selection != null)
{
// 获取被选中的站点对象
// Get the selected stop object
Recordset recordset = m_selection.ToRecordset();
GeoPoint snapPoint = recordset.GetGeometry() as GeoPoint;
// 构造文本对象，用于在跟踪层上显示站点的名称
// Construct the text object, which is used to display the stop name on the tracking name
GeoText stopText = new GeoText();
// 站点名称
// Stop name
String stopName = "";
if (SuperMap.Data.Environment.CurrentCulture != "zh-CN")
{
stopName = recordset.GetFieldValue("Name_en").ToString();
}
else
{
stopName = recordset.GetFieldValue("Name").ToString();
}
TextPart textPart = new TextPart(stopName, new Point2D(snapPoint.X, snapPoint.Y));
stopText.AddPart(textPart);
if (m_isStartPoint)
{
// 绘制之前先清空跟踪层上的点和文字
// Clear all points and words on the tracking layer before drawing
Int32 indexStartStop = m_trackingLayer.IndexOf("StartStop");
if (indexStartStop != -1)
{
m_trackingLayer.Remove(indexStartStop);
}
Int32 indexStartText = m_trackingLayer.IndexOf("StartStopName");
if (indexStartText != -1)
{
m_trackingLayer.Remove(indexStartText);
}
// 分别设置站点及其名称文本的风格，并添加到跟踪层上
// Set the stop and name style and add them to the tracking layer
snapPoint.Style = GetStopStyle(new Size2D(8, 8), Color.FromArgb(236, 118, 0));
m_trackingLayer.Add(snapPoint, "StartStop");
stopText.TextStyle = GetStopTextStyle(6.0, Color.FromArgb(0, 0, 0));
m_trackingLayer.Add(stopText, "StartStopName");
// 设置为起始站点ID
// Set the strat stop ID
m_startStopID = recordset.GetInt64("STOPID");
}
else
{
// 绘制之前先清空跟踪层上的点和文字
// Clear all points and words on the tracking layer before drawing
Int32 indexEndStop = m_trackingLayer.IndexOf("EndStop");
if (indexEndStop != -1)
{
m_trackingLayer.Remove(indexEndStop);
}
Int32 indexEndText = m_trackingLayer.IndexOf("EndStopName");
if (indexEndText != -1)
{
m_trackingLayer.Remove(indexEndText);
}
// 分别设置站点及其名称文本的风格，并添加到跟踪层上
// Set the stop and name style and add them to the tracking layer
snapPoint.Style = GetStopStyle(new Size2D(8, 8), Color.FromArgb(22, 255, 0));
m_trackingLayer.Add(snapPoint, "EndStop");
stopText.TextStyle = GetStopTextStyle(6.0, Color.FromArgb(0, 0, 0));
m_trackingLayer.Add(stopText, "EndStopName");
// 设置为起始站点ID
// Set the strat stop ID
m_endStopID = recordset.GetInt64("STOPID");
}
recordset.Dispose();
}
}
catch (Exception ex)
{
Trace.WriteLine(ex.Message);
}
}