服务 - HiMap 地理信息系统

Swift的含义:

Swift是"Swift团队"为Android系统移动设备框架开发打造的开发GIS引擎

Swift为Eclipse开发平台提供了完善的二次开发包。

支持的操作系统:

Android 2.2 以上的系统

支持的地图格式:

矢量图层:ESRI shape 文件 (.shp), AutoCAD DXF 文件 (.dxf)，开沃（.ksp）文件。

栅格图层: tif 文件 (.tif), img 文件(.img) ，开沃的（.kvr）文件。

支持的功能:

   浏览: 放大, 缩小, 漫游, 空间数据查询(通过地图坐标获取信息), 模糊查询, 闪烁图形元素, 轨迹图层,

   编辑: 添加/更新/删除shp文件中的点, 线, 面图形,

   渲染: 自定义图片符号样式, 自定义线形和多边形符号,

   坐标系和投影: 坐标系间互相转换, 设置投影.

Swift的优势:

   1. Swift支持常用Android开发工具Eclipse，使用简单，维护轻松.

   2. Swift支持直接显示和编辑大型shp地图文件.

   3. Swift与同类产品相比有更高的性价比.

   4. Swift操作大型矢量地图速度飞快.

Swift的系统要求:

   开发环境: 操作系统: Windows 2000, Windows XP, Windows 7

   开发工具: Eclipse

   终端驱动工具: 豌豆荚

运行环境:

操作系统为 Android系统的手机和平板电脑。

1.摘要

这篇文章总结了如何由地图坐标转换到屏幕坐标。

2.详情

由地图坐标得到屏幕坐标.

   //设置一个地图坐标点的值

   double dMapX = 123.4000;

   double dMapY = 40.3200;

   private MapControl m_mapcontrol;

   //将地图坐标点转换成屏幕坐标点

   Point mapPoint = m_mapcontrol.ToPixel(dMapX, dMapY)

   //显示结果

   Context context = getApplicationContext();

   CharSequence text = ("屏幕 x:" + mapPoint.GetX() + "\r\n" + "屏幕 y:" +

        mapPoint.GetY.ToString());

   int duration = Toast.LENGTH_SHORT;

   Toast toast = Toast.makeText(context, text, duration);

    toast.show();

1.摘要

本文主要讲述如何将屏幕坐标转换成地图坐标

2.详情

由屏幕坐标得到地图坐标.

//定义屏幕坐标点

int iScreenX = 100;

int iScreenY = 200;

//将屏幕坐标点转换为地图坐标

Point mapPoint = m_mapcontrol.FromPixel(iScreenX, iScreenY)

//显示结果

Context context = getApplicationContext();

CharSequence text = ("屏幕 x:" + mapPoint. GetX() + "\r\n" + "屏幕 y:" + mapPoint.GetY());

int duration = Toast.LENGTH_SHORT;

Toast toast = Toast.makeText(context, text, duration);

toast.show();

1.示例:

根据屏幕坐标绘制.

   //定义一个点图形和样式

   Paint paint = new Paint();

   paint.setColor(Color.RED);

   //绘点

   Canvas canvas;

   canvas.drawPoint(100, 200, paint);

2.备注:

绘制的前提条件：MapControl控件必须包含图层。一般在public void onClick(View v){}事件中执行。

1.示例:

//定义一些以屏幕坐标为单位的点

Point[] arrPoint = new Point[5];

arrPoint[0].Set(40, 30);

arrPoint[1].Set(100, 30);

arrPoint[2].Set(120, 80);

arrPoint[3].Set(50, 70);

arrPoint[4].Set(40, 90);

//定义样式

Paint paint = new Paint();

paint.setColor(Color.RED);

paint.setStrokeWidth(7);

//绘制线段

Canvas canvas;

canvas.drawLines(arrPoint, paint);

2.备注:

使用屏幕坐标的起点、终点坐标绘制

canvas.drawLine(startX, startY, stopX, stopY, paint)

1.示例:

//定义样式

p.setColor(Color.GRAY);

p.setStyle(Paint.Style.FILL);

//根据边框画设置矩形

//为多边形定义一些屏幕坐标点

Canvas canvas;

canvas.drawRect(60, 60, 80, 80, p);// 正方形

canvas.drawRect(60, 90, 160, 100, p);// 长方形

1.示例:

//定义样式

p.setColor(Color.GRAY);

p.setStyle(Paint.Style.FILL);

//根据椭圆的参数设置

RectF oval2 = new RectF();

oval2.set(210,100,250,130);

Canvas canvas;

canvas.drawOval(oval2, p);

private LocationManager locationManager;

private double longi;

private double latt;

//获取XML中地图控件ID

m_mapcontrol=(mapwork.swift.controls.mapControl)findViewById(R.id.mapControl1);

//加入监听事件

m_mapcontrol.addDrawListener(mMapOnDraw);

//GPS

locationManager=(LocationManager)getSystemService(Context,LOCATION_SERVICE);

//实现监听器 LocationListener

LocationListener locationlisten=new LocationListener(){

public void onSatusChanged(String arg0,int arg1,Bundle arg2){

public void onProviderEnabled(String arg0){

public void onProviderDisabled(String arg0){

//当坐标改变时触发此函数;如果Provider传进相同的坐标,它就不会被触发

public void onLocationChanged(Location arg0){

if(arg0!=null){

longi=arg0.getLongitude();

latt=arg0.getLatitude();

}

}

};

locationManager.requestLocationUpdates(LocationManager,GPS_OROVIDER

,1000,2,locationlisten);

1.摘要

Swift可以使用多种方式查询控件数据库中的对象。使用QueryFilter和SpatialFilter对象可以设置查询条件。

本问简短的讨论了如何使用QueryFilters查询对象，例如table或feature。

• 查询的代码.

   FeatureDataSet fdataset = null;

   // 获得图层

   int lyrindex = m_mapcontrol.GetMap().GetLayerIndex(m_dlg.GetTargetLayerName());

   if (lyrindex >= 0) {

   Layer lyr = m_mapcontrol.GetMap().GetLayer(lyrindex);

   fdataset = (FeatureDataSet) lyr.GetDataSet();

   } else {

   return;

   }

   // 建立查询条件

   QueryFilter qf = QueryFilter.CreateQueryFilter("NAME = '" + "David'");

   // 得到查询结果数据

   FeatureCursor fcur = fdataset.Search(qf, null);

   fcur.MoveFirst();

   Feature ft = fcur.MoveNext();

   if (ft != null) {

   m_fdsoog.SetGeometry(ft.GetGeometry());

   String desc = ((DataString) ft.GetFieldValue(1)).GetValue();

   private OnDrawListener mMapOnDraw=new OnDrawListener()

   {

   Public void onDraw(Canva canvas){

   Paint paint=new Paint();

   paint.setTextSize(12);

   if(longi!=0.0&&latt!=0.0)

   {

   if(locationManager!=null&&locationManager.isProviderEnabled

   (LocationManager.GPS_PROVIDER)==true)

   {

   android.graphics.Point pt=m_mapcontrol.ToPixel(longi,latt);

   Bitmap bmp=BitmapFactory.decodeResource(getResources()

      ,R.drawable.ic_launcher);

   canvas.drawBitmap(bmp,pt.x-bmp.getWidth()/2,pt.y-bmp.getHeight()/2,paint);

   paint.setColor(Color,BLUE);

   canvas.drawText("我的位置",pt.x,pt.y,paint);

   bmp.recycle();

   }

   }

   }

   };

当前这种绘制方法也适用于少量几何图形的绘制

1.摘要

本文将展示如何使用Swift进行点选查询。

2.详情

   mapwork.swift.system.FeatureDataSet

   public boolean onTouchEvent(MotionEvent arg0, MapControl arg1) {

   mapwork.swift.system.DataSet dataset1 = null;

   for(int i=0;i＜arg1.GetMap().GetLayerCount();i++)

   {

   if(arg1.GetMap().GetLayer(i).GetType() == Layer.LayerType.LTFeature)

   {

   FeatureDataSet fds = (FeatureDataSet)arg1.GetMap().GetLayer(i).GetDataSet();

   }

   }

   mapwork.swift.system.FeatureDataSet featuredataset1 = (mapwork.swift.system.

   FeatureDataSet) dataset1;

   //获得屏幕点击点

   float x = arg0.getX();

   float y = arg0.getY();

   //转换为屏幕坐标

   double lgt = (x / arg1.getWidth()) * (arg1.GetExtent().GetRight() - arg1.GetExtent().GetLeft())

        + arg1.GetExtent().GetLeft();

   double ltt = arg1.GetExtent().GetTop() - ((y / arg1.getHeight()) * (arg1.GetExtent().GetTop() -

        arg1.GetExtent().GetBottom()));

   mapwork.swift.geometry.Point p = new mapwork.swift.geometry.Point();

   p.Set(lgt,ltt);

   //查找范围获得查询结果

   double d1 = 0.001;

   mapwork.swift.system.SpatialFilter sf = new mapwork.swift.system.SpatialFilterNear(p,

      d1);

   mapwork.swift.system.FeatureCursor featurecursor1 = featuredataset1.Search(null, sf);

   _str1 = "";

   if(featurecursor1!=null)

   {

   mapwork.swift.system.Feature feature = featurecursor1.MoveNext();

   while(feature != null)

   {

   //显示查询结果条件

   DataString data1 = (DataString)feature.GetFieldValue(featuredataset1.GetFieldIndex

   ("NAME"));

   _str1 += data1.GetValue();

   _str1 += "|";

   //转到下一条数据

   feature = featurecursor1.MoveNext();

   }

   }

1.摘要

本文将逐步的展示如何向点图层文件(shape file)增加点.

2.详情

//获得编辑图层

public mapwork.swift.system.FeatureDataSetOOG m_fdsoog = null;

int lyrindex = m_mapcontrol.GetMap().GetLayerIndex(“Mylayer”);

if(lyrindex >= 0)

{

Layer lyr = m_mapcontrol.GetMap().GetLayer(lyrindex);

fdataset = (FeatureDataSet)lyr.GetDataSet();

}

else

{

return;

}

FeatureDataSource fdatasource = (FeatureDataSource)fdataset.GetDataSource();

//开始编辑

Boolean isEditting = fdatasource.IsStartEdit();

if(false == isEditting)

{

fdatasource.StartEdit();

}

fdatasource.StartEditOperation();

//创建新要素

m_fdsoog = (mapwork.swift.system.FeatureDataSetOOG) fdataset;

Feature ft = fdataset.NewFeature();

//更改图元的属性

ft.SetFieldValue(1, “Names”);

ft.SetGeometry(m_fdsoog.GetGeometry());

//保存并停止编辑

ft.Save();

fdatasource.StopEditOperation();

if(false == isEditting)

{

fdatasource.StopEdit(true);

}

//添加引用

import mapwork.swift.system.Feature;

import mapwork.swift.system.FeatureDataSet;

import mapwork.swift.system.FeatureDataSetOOG;

import mapwork.swift.system.Layer;

FeatureDataSet fdataset = null;

int lyrindex = m_mapcontrol.GetMap().GetLayerIndex(“polygon”);

if(lyrindex >= 0)

{

Layer lyr = m_mapcontrol.GetMap().GetLayer(lyrindex);

fdataset = (FeatureDataSet)lyr.GetDataSet();

}

else

{

return;

}

QueryFilter qf = QueryFilter.CreateQueryFilter("");

FeatureCursor fcur = fdataset.Search(qf, null);

FeatureDataSource fdatasource =(FeatureDataSource)fdataset.GetDataSource();

fdatasource.StartEdit();

fcur.MoveFirst();

Feature ft = fcur.MoveNext();

ft.Delete();

ft.Save();

fdatasource.StopEdit(true);

m_mapcontrol.RefreshMap();

示例:

1.直接加载

   //打开shp文件

  mapwork.swift.system.Parameters parameters = mapwork.swift.system. Parameters.

       CreateParameters();

  mapwork.swift.system.data.Data data = new mapwork.swift.system.data.DataString

       ("SHAPE");

  parameters.AddAttribute("DRIVER", data);

  //设置dir为存储卡

  String dir ="/sdcard";

  data = new mapwork.swift.system.data.DataString(dir);

  parameters.AddAttribute("DIR", data);

  //设置打开工作空间

  mapwork.swift.system.DataSourceFactory dsfactory = new mapwork.swift.system.

      DataSourceFactory();

  mapwork.swift.system.DataSource datasource = dsfactory.CreateDataSource

      (parameters);

  //打开地图名称

  mapwork.swift.system.DataSet dataset = datasource.OpenDataSet("Polygon.shp");

  mapwork.swift.system.Layer layer1 = dataset.CreateLayer(null);

  map = new mapwork.swift.system.Map();

  map.AddLayer(layer1);

  m_mapcontrol.SetMap(map);

2.其它方式加载

  // 加载"kvr"

  mapwork.swift.system.Parameters parameters = mapwork.swift.system.Parameters

     . CreateParameters();

  mapwork.swift.system.data.Data data = new mapwork.swift.system.data.DataString(

      "KVR");

  parameters.AddAttribute("DRIVER", data);

  data = new mapwork.swift.system.data.DataString(dir);

  parameters.AddAttribute("DIR", data);

  mapwork.swift.system.DataSourceFactory dsfactory = new mapwork.swift. system.

      DataSourceFactory();

  mapwork.swift.system.DataSource datasource = dsfactory.CreateDataSource

     (parameters);

  dataset = datasource.OpenDataSet(filename);

  // 加载"tif"

  mapwork.swift.system.Parameters parameters = mapwork.swift.system.Parameters

   .CreateParameters();

  mapwork.swift.system.data.Data data = new mapwork.swift.system.data.DataString(

      "GDAL");

  parameters.AddAttribute("DRIVER", data);

  data = new mapwork.swift.system.data.DataString(dir);

  parameters.AddAttribute("DIR", data);

  data = new mapwork.swift.system.data.DataString("tif");

  parameters.AddAttribute("EXT", data);

  mapwork.swift.system.DataSourceFactory dsfactory = new mapwork.swift.system.

     DataSourceFactory();

  mapwork.swift.system.DataSource datasource = dsfactory.CreateDataSource

    (parameters);

  dataset = datasource.OpenDataSet(filename);

  // 加载"img"

  mapwork.swift.system.Parameters parameters = mapwork.swift.system.Parameters

.CreateParameters();

  mapwork.swift.system.data.Data data = new mapwork.swift.system.data.DataString(

       "GDAL");

  parameters.AddAttribute("DRIVER", data);

  data = new mapwork.swift.system.data.DataString(dir);

  parameters.AddAttribute("DIR", data);

  data = new mapwork.swift.system.data.DataString("img");

  parameters.AddAttribute("EXT", data);

  mapwork.swift.system.DataSourceFactory dsfactory = new mapwork.swift.system.

         DataSourceFactory();

  mapwork.swift.system.DataSource datasource = dsfactory.CreateDataSource

         (parameters);

  dataset = datasource.OpenDataSet(filename);

  // 加载"gsf"

  mapwork.swift.system.Parameters parameters = mapwork.swift.system.Parameters

    .CreateParameters();

  mapwork.swift.system.data.Data data = new mapwork.swift.system.data.DataString(

      "KSP");

  parameters.AddAttribute("DRIVER", data);

  data = new mapwork.swift.system.data.DataString(dir);

  parameters.AddAttribute("DIR", data);

  data = new mapwork.swift.system.data.DataString("gsf");

  parameters.AddAttribute("KSPEXT", data);

  mapwork.swift.system.DataSourceFactory dsfactory = new mapwork.swift.

     system.DataSourceFactory();

  mapwork.swift.system.DataSource datasource = dsfactory.CreateDataSource

    (parameters);

  dataset = datasource.OpenDataSet(filename);

  // 加载"dxf"

  mapwork.swift.system.Parameters parameters = mapwork.swift.system.Parameters

   .CreateParameters();

  mapwork.swift.system.data.Data data = new mapwork.swift.system.data.DataString(

     "DXF");

  parameters.AddAttribute("DRIVER", data);

  data = new mapwork.swift.system.data.DataString(dir);

  parameters.AddAttribute("DIR", data);

  mapwork.swift.system.DataSourceFactory dsfactory = new mapwork.swift.system.

DataSourceFactory();

  mapwork.swift.system.DataSource datasource = dsfactory.CreateDataSource

   (parameters);

  dataset = datasource.OpenDataSet(filename);

  // 加载cdi"

  mapwork.swift.system.Parameters parameters = mapwork.swift.system.Parameters

    .CreateParameters();

  mapwork.swift.system.data.Data data = new mapwork.swift.system.data.DataString(

    "CTF");

  parameters.AddAttribute("DRIVER", data);

  data = new mapwork.swift.system.data.DataString(dir);

  parameters.AddAttribute("DIR", data);

  data = new mapwork.swift.system.data.DataString("ARCGISSERVER");

  parameters.AddAttribute("TYPE", data);

  mapwork.swift.system.DataSourceFactory dsfactory = new mapwork.swift.

      system.DataSourceFactory();

  mapwork.swift.system.DataSource datasource = dsfactory.CreateDataSource

    parameters);

  dataset = datasource.OpenDataSet(filename);

示例:

  //设置内存数据集

  mapwork.swift.system.Parameters parameters = mapwork.swift.system.Parameters

    .CreateParameters();

  mapwork.swift.system.data.Data data = new mapwork.swift.system.data.DataString

     ("MEMORY");

  parameters.AddAttribute("DRIVER", data);

  //创建一个内存数据源

  mapwork.swift.system.DataSourceFactory dsfactory = new mapwork.swift.

    system .DataSourceFactory();

  mapwork.swift.system.DataSource datasource = dsfactory.CreateDataSource

   (parameters);

  //设置内存数据集结构

  parameters = mapwork.swift.system.Parameters.CreateParameters();

  parameters.AddAttribute("NAME", new DataString("mymem"));

  parameters.AddAttribute("GEOMETRYTYPE", new mapwork.swift.system.data.

    DataString("POINT"));

  parameters.AddAttribute("FIELDNAME1", new DataString("ID"));

  parameters.AddAttribute("FIELDTYPE1", new DataString("INT"));

  parameters.AddAttribute("FIELDNAME2", new DataString("longitude"));

  parameters.AddAttribute("FIELDTYPE2", new DataString("DOUBLE"));

  parameters.AddAttribute("FIELDNAME3", new DataString("latitude"));

  parameters.AddAttribute("FIELDTYPE3", new DataString("DOUBLE"));

  //在内存数据源创建内存数据集

  if( false == datasource.CreateDataSet(parameters) )

  {return false};

  //打开数据集

  mapwork.swift.system.DataSet dataset1=datasource.OpenDataSet("mymem");

  //形成图层

  mapwork.swift.system.Layer layer1 = dataset1.CreateLayer(null);

详情

  //设置图层渲染

  mapwork.swift.system.FeatureRenderSimple render0 = new mapwork.swift.

       system.FeatureRenderSimple();

  mapwork.swift.draw2d.Paint paint0 = render0.GetPaint();

  mapwork.swift.draw2d.SolidBrush solidbrush0 = (mapwork.swift.draw2d.SolidBrush)

     paint0.GetBrush();

  //设置面图形的填充颜色

  solidbrush0.SetColor(Color.GREEN);

  //设置图形外廓线的宽度

  paint0.GetPen().SetWidth(2);

  //设置图形外廓线的颜色为红色

  paint0.GetPen().SetColor(Color.RED);

  ((FeatureLayer)layer1).SetRender(render0);

详情

//渲染

//图片方式

mapwork.swift.system.FeatureRenderSimple renderSimple = new mapwork. swift.

system.FeatureRenderSimple();

mapwork.swift.draw2d.PointSymbolBitmap symbmp = new mapwork.swift.

draw2d.PointSymbolBitmapFile("/mnt/sdcard/external_sd/point.png", Color.WHITE);

renderSimple.GetPaint().GetPointStyle().SetPointSymbol(0, symbmp);

((FeatureLayer)layer1).SetRender(renderSimple);

详情

FeatureLayer flayer = (FeatureLayer)m_mapcontrol.GetMap().GetLayer(m_selected

_layerset);

//标注获得字段

Spinner sp _label = (Spinner)m_layout.findViewById(R.id.setlabel);

String selected_label = (String)sp_label.getSelectedItem();

//设置图层显示标注

flayer.SetLabelExpression(selected_label);

mapwork.swift.system.FeatureRenderSimple render1_simple = new mapwork. swift

.system.FeatureRenderSimple();

//更改标注大小

render1_simple.GetPaint().GetFont().SetSize(20);

flayer.SetRender(render1_simple);

1.摘要

本文将讲述如何刷新及使绘图显示区域无效。

2.详情

//重绘显示区域

mapControl1.MapRefresh();

; 1. 指定一个点进行定位

//创建一个点

double dMapX = 123.4000;

double dMapY = 40.3200;

private MapControl m_mapcontrol;

//将地图坐标点转换成屏幕坐标点

Point mapPoint = m_mapcontrol.ToPixel(dMapX, dMapY)

//定位到该点

m_mapcontrol.CenterAt(pt1);

m_mapcontrol.RefreshMap();

2. 指定一个区域进行定位

//定义区域

Rectangle rect = new Rectangle();

rect.Set(123.4567, 41.3456, 123.4577, 14.3446);

//设置地图显示区域

m_mapcontrol.SetExtent(rect);

//刷新地图

m_mapcontrol.RefreshMap();

示例:

//经度:

double dMapX = m_mapcontrol.GetCenter().GetX();

//纬度:

double dMapY = m_mapcontrol.GetCenter().GetY();

示例:

//比例尺

String myScale = "比例尺为 1：" + m_mapcontrol.GetScale();

//纬度:

double dMapY = m_mapcontrol.GetCenter().GetY();

设置点击工具

menuitem=submenu.add(groupId,menuid,menuItemOrder,"获取坐标点");

menuitem.setOnMenuitemClickListener(mGetCoorMenuItemClick);

menuid++;

private MenuItem.OnMenuItemClickListener mGetCoorMenuItemClick=new MenuItem,

OnMenuItemClickListener(){

public boolean onMenuItemClick(MenuItem item)

{

curPoint=new GetCurPointTool(m_mapcontrol);

m_mapcontrol.SetCurTool(curPoint);

teturn true;

}

};

显示坐标

if(curPoint!=null)

{

if(curPoint.GetPoint().Gex()!=0.00){

Toast.makeText(getApplicationContext(),"经度:"+String.valueOf(curPoint.GetPoint().GetX()

)+"纬度:"+String.valueOf(curPoint().GetY()),Toast.LENGTH_SHORT).show();

}

}

用到的类文件为GetCurPointTool

设置触发事件:

menuitem=submenu.add(groupId,menuid,menuItemOrder,"获取当前点附近的信息");

menuitem.setOnMenuitemClickListener(mGetCoorMenuItemClick);

menuid++;

//获取当前点附近的信息

private MenuItem.OnMenuItemClickListener mGetInfoMenuItemClick=new MenuItem.

OnMenuItemClickListener(){

public boolean onMenuItemClick(MenuItem item){

ToolGeneralQuery tmpTool=new ToolGeneralQuery(SwiftexampleActivity, this

.m_mapcontrol);

m_mapcontrol.setCurTool(tmpTool);

return true;

}

};

应用到的类文件：ToolGeneralQuery、GeneralInfoDialog；也可以修改ToolGeneralQuery，查询特殊的图层。

设置触发事件：

menuitem=submenu.add(groupId,menuid,menuItemOrder,"属性查询");

menuitem.setOnMenuitemClickListener(mGetCoorMenuItemClick);

menuid++;

//属性查询----只是针对当前表中有Name字段的查询,开发人员可以进行调整

private MenuItem.OnMenuItemClickListener mQueryPropertyMenuItemClick=new

MenuItem.OnMenuItemClickListener(){

public boolean onMenuItemClick(MenuItem item)

{

final ToolQuery query=new ToolQuery(m_mapcontrol.getContext().m_mapcontrol

.getContext());

aDialog.setTitle("属性查询");

aDialog.setView(query);

aDialog.setNegativeButton("关闭",new DialogInterface.OnClickListener(){

public void onClick(DialogInface dialog,int which){

}

}};

AlertDialog ad=aDialog.create();

query.mTheDialog=ad;

ad.show();

return true;

}

};

应用到的类文件：ToolQuery

GPS权限：

示例:

private OnClickListener mCorkyListenerPan = new OnClickListener()

{

public void onClick(View v)

{

mapwork.swift.tools.ITool tool = new mapwork.swift.tools.MapPanTool();

m_mapcontrol.SetCurTool(tool);

}

};

示例:

private MenuItem.OnMenuItemClickListener mFullExtentMenuItemClick = new MenuItem.

OnMenuItemClickListener()

{

public boolean onMenuItemClick(MenuItem item)

{

ICommand cmd = new FullViewCommand();

cmd.onCreate(m_mapcontrol);

cmd.excute();

return true;

}

};

示例:

   private void menuItemZoomOut_Click(object sender, EventArgs e)

   {

   ITool tool = new HiMap.MapControls.Tools.ToolZoomOut();

   tool.OnCreate(this.mapControl1);

   this.mapControl1.CurTool = tool;

   }

示例:

   public class ZoomOut implements OnClickListener {

   public void onClick(View v) {

   ICommand cmd = new ZoomOutCommand();

   cmd.onCreate(m_mapcontrol);

   cmd.excute();

   }

   }

示例:

加载SWIFT图档

示例：

//加载SD卡上的mapsXML文档

m_mapcontrol.FromMWDOC("/sdcard/maps.xml");

保存SWIFT图档

示例：

//保存图档到SD卡map.xml

m_mapcontrol.ToMWDOC("/sdcard/maps.xml", true);

示例:

将WGS84 转换为西安80

   public mapwork.swift.geometry.Point transfromToAppCoord(

  mapwork.swift.geometry.Point pt84) {

  mapwork.swift.geometry.Point ptearth = null;

  double earthx = 0;

  double earthy = 0;

  // ------------7参数转换----------

  if (tmpTransForm7 != null && tmpCRS != null) {

  mapwork.swift.coordinatesystem.GeographicCoordinateSystem gcs = null;

  if (tmpCRS.GetType() == mapwork.swift.coordinatesystem.CoordinateReferenceSystem.

      CoordinateReferenceSystemType.CRSTGCS) {

  gcs = (mapwork.swift.coordinatesystem.GeographicCoordinateSystem) tmpCRS;

  } else if (

  tmpCRS.GetType() == mapwork.swift.coordinatesystem.CoordinateReferenceSystem.

     CoordinateReferenceSystemType.CRSTPCS) {

  mapwork.swift.coordinatesystem.ProjectedCoordinateSystem pcs = (mapwork. swift.

     coordinatesystem.ProjectedCoordinateSystem) tmpCRS;

  gcs = pcs.GetGeographicCoordinateSystem();

  }

  if (gcs.GetDatum().GetSpheroid().equals(getSpheroid84())) {

  ptearth = new mapwork.swift.geometry.Point(pt84.GetX(),pt84.GetY());

  } else {

  mapwork.swift.geometry.Point pt84RightAngle = getSpheroid84().ToRightAngle(pt84);

  mapwork.swift.geometry.Point ptAppRightAngle = tmpTransForm7.TransForm

     (pt84RightAngle);

  ptearth = gcs.GetDatum().GetSpheroid().ToEarth(ptAppRightAngle);

  }

  } else {

  ptearth = new mapwork.swift.geometry.Point(pt84.GetX(), pt84.GetY());

  }

  earthx = ptearth.GetX();

  earthy = ptearth.GetY();

  mapwork.swift.geometry.Point ptApp = null;

  // ---------------投影转换------------------

  if (tmpCRS != null && tmpCRS.GetType() == mapwork.swift.coordinatesystem.

      CoordinateReferenceSystem.CoordinateReferenceSystemType.CRSTPCS) {

  mapwork.swift.coordinatesystem.ProjectedCoordinateSystem pcs = (mapwork. swift.

      coordinatesystem.ProjectedCoordinateSystem) tmpCRS;

  if (pcs.GetProjectedType()==mapwork.swift.coordinatesystem.

         ProjectedCoordinateSystem.ProjectedCoordinateSystemType.PCSTGUASS) {

  mapwork.swift.coordinatesystem.GaussKruGerProjection gauss = (mapwork. swift.

      coordinatesystem.GaussKruGerProjection) pcs;

  ptApp = gauss.ProjCal(ptearth, pcsGetGeographicCoordinateSystem().

      GetAngularUnit(), pcs.GetLinearUnit());

  } else {

  ptApp = new mapwork.swift.geometry.Point(ptearth.GetX(),ptearth.GetY());

  }

  } else {

  ptApp = new mapwork.swift.geometry.Point(ptearth.GetX(),ptearth.GetY());

  }

  // ----------纠偏----------------

  if (tmpTransPoint != null) {

  double x = ptApp.GetX();

  double y = ptApp.GetY();

  ptApp.Set(x + tmpTransPoint.GetX(), y + tmpTransPoint.GetY());

  }

  return ptApp;

WGS84到西安80平面直角坐标系的转换

   mapwork.swift.coordinatesystem.CoordinateTransForm7 tmpTransForm7

  tmpTransForm7.TransForm(pt);

  //具体步骤为：

  //设置一个点

  mapwork.swift.geometry.Point pt84;

  pt84.Set(123.22, 41.2233);

  mapwork.swift.geometry.Point pt84RightAngle = getSpheroid84().ToRightAngle(pt84);

  //最后转换为80坐标系

  mapwork.swift.coordinatesystem.CoordinateTransForm7 tmpTransForm7

  tmpTransForm7.TransForm(pt84RightAngle);

  //注：设置参数函数为

  public Spheroid getSpheroid84() {

  if (null == tmpSpheroid84)

  tmpSpheroid84 = (Spheroid) Spheroid.FromWKT("SPHEROID[\"WGS84\", 6378137.0,

  298.257223563]");

  //.FromWKT("SPHEROID[\"Krasovsky_1940\",6378137.0,298.257223563]");

  或使用椭球体参数

  return tmpSpheroid84;

  }

关于Swift

Swift的含义:

支持的操作系统:

支持的地图格式:

支持的功能:

Swift的优势:

Swift的系统要求:

运行环境:

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2.详情

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1.示例:

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1.示例:

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1.示例:

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2.详情

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示例:

示例:

详情

详情

详情

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地图数据管理

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