GIS_cs/WWPipeLine/WWPipeLine.Map/Tools/Conditions/FuZhuGongJu/BZShuanDian.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;
using WWPipeLine.MapBasic;
namespace WWPipeLine.MapTools.Conditions.FuZhuGongJu
{
	public class BZShuanDian : BasicToolBar
	{
		private Point2D m_StartPoint = Point2D.Empty;
		private Point2D m_EndPoint = Point2D.Empty;
		public BZShuanDian() : base()
		{
			this.ConditionPanelName = "栓点标注";
			InitializeComponent();
		}
		protected override void OnLoad(EventArgs e)
		{
			MapControl.Action = SuperMap.UI.Action.CreateLine;
			MapControl.Cursor = Cursors.Arrow;
			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();
				GeoLine line = new GeoLine(new Point2Ds() { m_StartPoint, m_EndPoint });
				line.Style = ComsStatic.geoStyle_Brown_05mm;
				MapControl.Map.TrackingLayer.Add(line, "geoLine");

				m_TextPart.X = line.InnerPoint.X; m_TextPart.Y = line.InnerPoint.Y;
				m_TextPart.Text = string.Format("{0}M", Math.Round(line.Length));

				double rotate = 0.0D;
				if (e.Azimuth < 180) rotate = -e.Azimuth + 90;
				else rotate = 270 - e.Azimuth;
				GeoText geoText = new GeoText(m_TextPart, ComsStatic.textStyle_Brown_6mm_BottomLeft);
				geoText.Rotate(line.InnerPoint, rotate);
				MapControl.Map.TrackingLayer.Add(geoText, "geoText");

				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.Name = "坐标标注";
			this.ResumeLayout(false);
		}
	}
}