Silverlight for ArcGIS 经纬度定位

概述一、首先保证能有一个Geometry Service类型的服务，如何新建该服务，步骤如下：开始------>ArcGIS------>ArcGIS Server for the Microsoft .NET Framework------->ArcGIS Server Manager------->进入登录页面后，我们输入登录名和密码，登录名，例如：PC-201306130927\ArcGISSo

一、首先保证能有一个Geometry Service类型的服务，如何新建该服务，步骤如下：开始------>ArcGIS------>ArcGIS Server for the Microsoft .NET Framework------->ArcGIS Server Manager------->进入登录页面后，我们输入登录名和密码，登录名，例如：PC-201306130927\ArcGISSom（PC-201306130927=第一个为计算机名称），

看到主界面后：

二、有了此服务后，我们要做两件事，1添加代码，2、经纬度定位提示图标。 代码 ：

public voID JWDDW(string XString,string YString)        {            try            {                double x;                double y;                try                {                    x = Convert.Todouble(XString);                    y = Convert.Todouble(YString);                }                catch (Exception ex)                {                    _errorLog.InsertErrorLogfileAsync("JWDDW_不是有效的经纬度",ex.ToString());                    return;                }                //投影服务                GeometryService geoService = new GeometryService("http://pc-201306130927/ArcGIS/rest/services/Geometry/GeometryServer");                geoService.ProjectCompleted += new EventHandler<GraphicsEventArgs>(geoService_ProjectCompleted);                geoService.Failed += new EventHandler<TaskFailedEventArgs>(geoService_Failed);                MapPoint inputMapPoint = new MapPoint(x,y,new SpatialReference(4326));                geoService.ProjectAsync(new List<Graphic>() { new Graphic() { Geometry = inputMapPoint } },yzxfMap.SpatialReference,inputMapPoint);            }            catch (Exception ex)            {                _errorLog.InsertErrorLogfileAsync("JWDDW",ex.ToString());                ex.ToString();            }        }

其中有两个地方需要说明一下：1，投影服务，就是我们刚刚创建的服务地址,。2、有两个事件我们需要创建geoService_ProjectCompleted和geoService_Failed（第一个事件方法是用来初始化数据用的，第一个是错误提示） a、

 private Graphicslayer firePointLayer = new Graphicslayer();        voID geoService_ProjectCompleted(object sender,GraphicsEventArgs e)        {            try            {                firePointLayer.Cleargraphics();                Graphic resultGraphic = e.Results[0];                if (resultGraphic.Geometry.Extent != null)                {                    resultGraphic.Symbol = LayoutRoot.Resources["DefaultMarkerSymbol"] as Symbol;                    MapPoint resultMapPoint = resultGraphic.Geometry as MapPoint;                    resultGraphic.Attributes.Add("ID","0");                    resultGraphic.Attributes.Add("Output_CoordinateX",resultMapPoint.X);                    resultGraphic.Attributes.Add("Output_CoordinateY",resultMapPoint.Y);                    MapPoint inputMapPoint = e.UserState as MapPoint;                    resultGraphic.Attributes.Add("input_CoordinateX",inputMapPoint.X);                    resultGraphic.Attributes.Add("input_CoordinateY",inputMapPoint.Y);                    firePointLayer.Graphics.Add(resultGraphic);                    yzxfMap.Layers.Add(firePointLayer);                    Envelope displayExtent = new Envelope(                                            resultMapPoint.X - (resultMapPoint.X / 1000),resultMapPoint.Y - (resultMapPoint.Y / 1000),resultMapPoint.X + (resultMapPoint.X / 1000),resultMapPoint.Y + (resultMapPoint.Y / 1000));                    yzxfMap.ZoomTo(displayExtent);                }            }            catch (Exception ex)            {                _errorLog.InsertErrorLogfileAsync("geoService_ProjectCompleted",ex.ToString());            }        }

注意：      resultGraphic.Symbol = LayoutRoot.Resources["DefaultMarkerSymbol"] as Symbol; 这句话里面的 DefaultMarkerSymbol 对象是我们前台代码：

 <esriSymbols:SimpleFillSymbol x:name="DefaultFillSymbol" Fill="#33FF0000" borderBrush="Red" borderThickness="2" />            <esri:MarkerSymbol x:name="DefaultMarkerSymbol">                <esri:MarkerSymbol.ControlTemplate>                    <ControlTemplate>                        <Canvas>                            <visualstatemanager.VisualStateGroups>                                <VisualStateGroup x:name="CommonStates">                                    <VisualState x:name="normal">                                        <Storyboard RepeatBehavior="Forever">                                            <DoubleAnimation BeginTime="00:00:00" Storyboard.Targetname="ellipse" Storyboard.TargetProperty="(UIElement.Rendertransform).(Scaletransform.ScaleX)" From="1" To="10" Duration="00:00:01" />                                            <DoubleAnimation BeginTime="0:0:0" Storyboard.Targetname="ellipse" Storyboard.TargetProperty="(UIElement.Rendertransform).(Scaletransform.ScaleY)" From="1" To="10" Duration="00:00:01" />                                            <DoubleAnimation BeginTime="00:00:00" Storyboard.Targetname="ellipse" Storyboard.TargetProperty="(UIElement.Opacity)" From="1" To="0" Duration="00:00:01" />                                        </Storyboard>                                    </VisualState>                                </VisualStateGroup>                            </visualstatemanager.VisualStateGroups>                            <Ellipse Height="10" WIDth="10" Canvas.left="-5" Canvas.top="-5" RendertransformOrigin="0.5,0.5" x:name="ellipse" IsHitTestVisible="False">                                <Ellipse.Rendertransform>                                    <Scaletransform />                                </Ellipse.Rendertransform>                                <Ellipse.Fill>                                    <RadialGradIEntBrush>                                        <GradIEntStop color="#00FF0000" />                                        <GradIEntStop color="#FFFF0000" Offset="0.25" />                                        <GradIEntStop color="#00FF0000" Offset="0.5" />                                        <GradIEntStop color="#FFFF0000" Offset="0.75" />                                        <GradIEntStop color="#00FF0000" Offset="1" />                                    </RadialGradIEntBrush>                                </Ellipse.Fill>                            </Ellipse>                            <Ellipse Height="10" WIDth="10" Canvas.left="-5" Canvas.top="-5" Fill="#FFFF0000" x:name="ellipse1" />                        </Canvas>                    </ControlTemplate>                </esri:MarkerSymbol.ControlTemplate>            </esri:MarkerSymbol>        </GrID.Resources>

事就这么成了！

三、我们来看看，效果图：

中间闪烁的小图标就是我们根据 经纬度定位的地方。点击打开链接下载源码

总结

以上是内存溢出为你收集整理的Silverlight for ArcGIS 经纬度定位全部内容，希望文章能够帮你解决Silverlight for ArcGIS 经纬度定位所遇到的程序开发问题。

如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。