📄 frmmain.cs
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}
/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new frmMain());
}
private void Map_ViewChanged(object o, ViewChangedEventArgs e)
{
try
{
//判断，如果mapMain有地图存在，则自定义的工具条可用，否则不可用
if(mapMain.Map.Layers.Count>0)
{
toolViewEntire.Enabled=true;
toolSelectNone.Enabled=true;
toolBarRuler.Enabled=true;
toolBarArea.Enabled=true;
}
else
{
toolViewEntire.Enabled=false;
toolSelectNone.Enabled=false;
toolBarArea.Enabled=false;
}
//显示当前缩放尺度
MapInfo.Mapping.Map map = (MapInfo.Mapping.Map) o;
Double dblZoom = System.Convert.ToDouble(String.Format("{0:E2}", mapMain.Map.Zoom.Value ));
statusBarMain.Text = "缩放:"+dblZoom.ToString()+" "+ MapInfo.Geometry.CoordSys.DistanceUnitAbbreviation(mapMain.Map.Zoom.Unit);
if (panEye.Visible==true)
{
//加载鹰眼矩形临时表
Table tblRect;
tblRect=Session.Current.Catalog.GetTable("TempRect");
if (tblRect!=null)
tblRect.Close();
TableInfo tblInfo ;
tblInfo=TableInfoFactory.CreateTemp("TempRect");
TableSessionInfo tblSessionInfo =new TableSessionInfo();
tblRect=Session.Current.Catalog.CreateTable(tblInfo,tblSessionInfo);
FeatureLayer feaLayer=new FeatureLayer(tblRect);
mapEye.Map.Layers.Insert(0,feaLayer);
//实时在鹰眼临时表图上画矩形
tblRect=Session.Current.Catalog.GetTable("TempRect");
(tblRect as ITableFeatureCollection).Clear();//清除当前层上的图元
//设置矩形的样式
DRect rect=mapMain.Map.Bounds ;
FeatureGeometry feageo=new MapInfo.Geometry.Rectangle(mapMain.Map.GetDisplayCoordSys(),rect);
SimpleLineStyle simLineStyle=new SimpleLineStyle(new LineWidth(2,MapInfo.Styles.LineWidthUnit.Point ),2,System.Drawing.Color.Red );
SimpleInterior simInterior=new SimpleInterior(9,System.Drawing.Color.Gray ,System.Drawing.Color.Green,true);
CompositeStyle comStyle=new CompositeStyle(new AreaStyle(simLineStyle,simInterior),null,null,null);
//将矩形插入到图层中
Feature fea=new Feature(feageo,comStyle);
tblRect.InsertFeature(fea);
mapEye.Map.Layers["TempRect"].Invalidate();
//清理对象变量
tblSessionInfo=null;
feageo=null;
simLineStyle=null;
simInterior=null;
comStyle=null;
fea=null;
}
}
catch (Exception Ex)
{
MessageBox.Show ("鹰眼错误:"+Ex.Message.ToString());
}
}
private void mnuDispToolBar_Click(object sender, System.EventArgs e)
{
mnuDispToolBar.Checked=!mnuDispToolBar.Checked ;
if (mnuDispToolBar.Checked)
{
mapToolBarMain.Visible=true;
}
else
{
mapToolBarMain.Visible=false;
}
}
private void mnuOpenMap_Click(object sender, System.EventArgs e)
{
try
{
//加载地图工作空间,该文件由worlSpace管理器生成
OpenFileDialog openFileDialog1=new OpenFileDialog();
openFileDialog1.Multiselect = false;
openFileDialog1.CheckFileExists = true;
openFileDialog1.DefaultExt = "MWS";
openFileDialog1.Filter = "地图文件(*.mws)|*.mws||";
if(openFileDialog1.ShowDialog(this) == DialogResult.OK)
{
//清理原来地图
mapMain.Map.Clear();
mapEye.Map.Clear();
Session.Current.Catalog.CloseAll();
//加载工作空间地图
MapWorkSpaceLoader mwl = new MapWorkSpaceLoader(openFileDialog1.FileName);
mapMain.Map.Load(mwl);
mapEye.Map.Load(mwl);
}
}
catch(Exception Ex)
{
MessageBox.Show ("加载地图错误:"+Ex.Message.ToString());
}
}
private void mnuExit_Click(object sender, System.EventArgs e)
{
this.Close();
Application.Exit();
}
private void mnuDispEye_Click(object sender, System.EventArgs e)
{
mnuDispEye.Checked=!mnuDispEye.Checked ;
if (mnuDispEye.Checked)
{
this.panEye.Visible=true;
}
else
{
this.panEye.Visible=false;
}
}
private void frmMain_Resize(object sender, System.EventArgs e)
{
if ( this.ClientSize.Width -this.panEye .Width >0)
{
this.panEye.Left=this.ClientSize.Width -panEye.Width ;
}
if (this.ClientSize.Height -this.panEye .Height-this.statusBarMain .Height >0)
{
this.panEye.Top =this.ClientSize.Height -this.panEye .Height-this.statusBarMain.Height ;
}
}
private void mnuStatusBar_Click(object sender, System.EventArgs e)
{
mnuStatusBar.Checked=!mnuStatusBar.Checked ;
if (mnuStatusBar.Checked)
{
this.statusBarMain.Visible=true;
}
else
{
this.statusBarMain.Visible=false;
}
}
private void frmMain_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
mapMain.Map.Clear();
mapEye.Map.Clear();
Session.Current.Catalog.CloseAll();
}
private void frmMain_Load(object sender, System.EventArgs e)
{
boolEyeMove=false;
}
private void mapEye_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
{
try
{
if( boolEyeMove==true)
{
System.Drawing.Point pt = new System.Drawing.Point(e.X, e.Y);
MapInfo.Geometry.DPoint dptCenter;
mapEye.Map.DisplayTransform.FromDisplay(pt,out dptCenter);
mapMain.Map.Center = dptCenter;
}
}
catch(Exception Ex)
{
MessageBox.Show ("鹰眼错误:"+Ex.Message.ToString());
}
}
private void mapEye_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
{
boolEyeMove=false;
}
private void mapEye_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
try
{
boolEyeMove=true;
System.Drawing.Point pt = new System.Drawing.Point(e.X, e.Y);
MapInfo.Geometry.DPoint dptCenter;
mapEye.Map.DisplayTransform.FromDisplay(pt,out dptCenter);
mapMain.Map.Center = dptCenter;
}
catch(Exception Ex)
{
MessageBox.Show ("鹰眼错误:"+Ex.Message.ToString());
}
}
private void mapToolBarMain_ButtonClick(object sender, System.Windows.Forms.ToolBarButtonClickEventArgs e)
{
try
{
if (e.Button.Tag==null)
return;
string strTag=e.Button.Tag.ToString();
switch (strTag)
{
case "viewEntire":
Map map = mapMain.Map;
IMapLayerFilter lyrFilter = new FilterByLayerType(LayerType.Normal );
MapLayerEnumerator lyrEnum= map.Layers.GetMapLayerEnumerator(lyrFilter);
map.SetView(lyrEnum);
break;
case "selectNone":
Session.Current.Selections.DefaultSelection.Clear ();
break;
case "ruler":
mapMain.Tools.LeftButtonTool ="DistanceTool";
break;
case "Area":
mapMain.Tools.LeftButtonTool ="AreaTool";
break;
default:
break;
}
}
catch(Exception Ex)
{
MessageBox.Show ("工具条错误:"+Ex.Message.ToString());
}
}
private void Tools_Used(object sender,MapInfo.Tools.ToolUsedEventArgs e)
{
try
{
switch (e.ToolName)
{
case "DistanceTool":
switch (e.ToolStatus)
{
case MapInfo.Tools.ToolStatus.Start:
dblDistance = 0;
dptStart = e.MapCoordinate ;
break;
case MapInfo.Tools.ToolStatus.InProgress:
dblDistance += MapInfo.Geometry.CoordSys.Distance(MapInfo.Geometry.DistanceType.Spherical ,mapMain.Map.Zoom.Unit,mapMain.Map.GetDisplayCoordSys(),dptStart,e.MapCoordinate);
dptStart = e.MapCoordinate;
break;
case MapInfo.Tools.ToolStatus.End:
dblDistance += MapInfo.Geometry.CoordSys.Distance(MapInfo.Geometry.DistanceType.Spherical ,mapMain.Map.Zoom.Unit,mapMain.Map.GetDisplayCoordSys(),dptStart,e.MapCoordinate);
MessageBox.Show ("总长度为:"+string.Format ("{0:F3}",dblDistance)+" "+ MapInfo.Geometry.CoordSys.DistanceUnitAbbreviation(mapMain.Map.Zoom.Unit).ToString());
mapMain.Map.Invalidate(true);
break;
default:
break;
}
break;
case "AreaTool":
switch (e.ToolStatus)
{
case MapInfo.Tools.ToolStatus.Start:
arrlstPoints.Clear();
dptFirstPoint=e.MapCoordinate;
arrlstPoints.Add (e.MapCoordinate);
break;
case MapInfo.Tools.ToolStatus.InProgress:
arrlstPoints.Add (e.MapCoordinate);
break;
case MapInfo.Tools.ToolStatus.End:
//构造一个闭合环
arrlstPoints.Add (e.MapCoordinate);
int intCount=arrlstPoints.Count ;
if (intCount<=3 )
{
MessageBox.Show("请画3个以上的点形成面来测量你所要的面积");
return;
}
MapInfo.Geometry.DPoint[] dptPoints=new DPoint[intCount];
for (int i=0;i<=intCount-1 ;i++)
{
dptPoints[i]=(MapInfo.Geometry.DPoint)arrlstPoints[i];
}
dptPoints[intCount-1]=dptFirstPoint ;
//用闭合的环构造一个面
MapInfo.Geometry.AreaUnit costAreaUnit;
costAreaUnit=MapInfo.Geometry.CoordSys.GetAreaUnitCounterpart(mapMain.Map.Zoom.Unit);
MapInfo.Geometry.CoordSys objCoordSys=this.mapMain.Map.GetDisplayCoordSys();
MapInfo.Geometry.Polygon objPolygon=new Polygon(objCoordSys,MapInfo.Geometry.CurveSegmentType.Linear,dptPoints);
if (objPolygon==null)
return;
MessageBox.Show ("总面积为:"+string.Format ("{0:F3}",objPolygon.Area(costAreaUnit))+" "+MapInfo.Geometry.CoordSys.AreaUnitAbbreviation (costAreaUnit));
mapMain.Map.Invalidate(true);
break;
default:
break;
}
break;
//可以添加其他的用户自定义Tool
default:
break;
}
}
catch(Exception Ex)
{
MessageBox.Show ("测量错误:"+Ex.Message.ToString());
}
}
}
}
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