GIS_cs/WWPipeLine/WWPipeLine.Map/Tools/Conditions/FuZhuGongJu/BZZuoBiao.cs

using SuperMap.Data;
using System;
using System.Collections.Generic;
using System.Windows.Forms;
using WWPipeLine.MapBasic.Conditions;
using WWPipeLine.MapBasic;
using System.Drawing;
using SuperMap.UI;

namespace WWPipeLine.MapTools.Conditions.FuZhuGongJu
{
	public class BZZuoBiao : BasicToolBar
	{
		private Point2D m_StartPoint = Point2D.Empty;
		private Point2D m_EndPoint = Point2D.Empty;
		public BZZuoBiao() : base()
		{
			this.ConditionPanelName = "坐标标注";
			InitializeComponent();
			toolStripLB.Text = "鼠标左键点击选择标注点，再次点击完成标注。";
		}
		protected override void OnLoad(EventArgs e)
		{
			MapControl.Action = SuperMap.UI.Action.CreateLine;
			MapControl.Tracked += new TrackedEventHandler(MapControl_Tracked);
			MapControl.Tracking += new TrackingEventHandler(MapControl_Tracking);
		}

		private void MapControl_Tracking(object sender, TrackingEventArgs e)
		{
			if (m_StartPoint == Point2D.Empty)
				m_StartPoint = new Point2D(e.X, e.Y);
			else
				m_EndPoint = new Point2D(e.X, e.Y);
		}

		private void MapControl_Tracked(object sender, TrackedEventArgs e)
		{
			if (m_StartPoint != Point2D.Empty && m_EndPoint != Point2D.Empty)
			{
				TextPart m_TextPart = new TextPart();
				m_TextPart.AnchorPoint = m_EndPoint;
				m_TextPart.Text = string.Format("X:{0}\r\nY:{1}", Math.Round(m_StartPoint.X, 2), Math.Round(m_StartPoint.Y, 2));
				GeoText geoText = new GeoText(m_TextPart, ComsStatic.BiaoZhuFengGe());

				MapControl.Map.TrackingLayer.Add(geoText, "geoText");
				Point2D p3 = new Point2D(geoText.Bounds.Right, geoText.Bounds.Bottom);

				//此处调试geoText.Bounds 左右、上下端点几乎一致 但是实际上界面是有XY坐标显示额
				//geoText.Bounds.Left    833130.131007001
				//geoText.Bounds.Right   833130.131007401
				//geoText.Bounds.Top     5051136.9966243524
				//geoText.Bounds.Bottom  5051136.9966239519

				GeoLine geoLine = new GeoLine();
				geoLine.AddPart(new Point2Ds() { m_StartPoint, m_EndPoint, p3 });
				geoLine.Style = ComsStatic.geoStyle_Brown_05mm;
				MapControl.Map.TrackingLayer.Add(geoLine, "geoLine");
				m_StartPoint = Point2D.Empty; m_EndPoint = Point2D.Empty;
				MapControl.Map.Refresh();
			}
		}

		public override void AfterClose()
		{
			MapControl.Tracked -= MapControl_Tracked;
			MapControl.Tracking -= MapControl_Tracking;
			base.AfterClose();
		}
		private void InitializeComponent()
		{
			this.SuspendLayout();
			// 
			// ToolsConditions
			// 
			this.ResumeLayout(false);
		}
	}
}