ArcGIS.Server.9.2.DotNet在ElementGraphicsLayer画点、线、折线、面、圆、矩形的代码：
1
public class AddTool:IMapServerToolAction
2
{
3
4
5 public void ServerAction(ESRI.ArcGIS.ADF.Web.UI.WebControls.ToolEventArgs args)
6
{
7 //获取map控件
8 ESRI.ArcGIS.ADF.Web.UI.WebControls.Map adfMap = (ESRI.ArcGIS.ADF.Web.UI.WebControls.Map)args.Control;
9 ESRI.ArcGIS.ADF.Web.DataSources.Graphics.MapFunctionality adfGraphicsMapFunctionality = null;
10
11 if (args is PointEventArgs)
12 {
13 //转成点
14 PointEventArgs pointEventArgs = (PointEventArgs)args;
15 //屏幕点
16 System.Drawing.Point screenPoint = pointEventArgs.ScreenPoint;
17 //屏幕坐标转成地理坐标
18 ESRI.ArcGIS.ADF.Web.Geometry.Point adfPoint = ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint(screenPoint.X, screenPoint.Y, adfMap.GetTransformationParams(ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap));
19
20 //MapFunctionality
21 foreach (ESRI.ArcGIS.ADF.Web.DataSources.IMapFunctionality mapFunctionality in adfMap.GetFunctionalities())
22 {
23 //当Resource为ADFGraphicsResource,ADFGraphicsResource为GraphicsLayer， 保存在内存中用显示临时图层
24 if (mapFunctionality.Resource.Name == "GraphicsResource")
25 {
26 adfGraphicsMapFunctionality = (ESRI.ArcGIS.ADF.Web.DataSources.Graphics.MapFunctionality)mapFunctionality;
27 break;
28
}
29 }
30 //从adfGraphicsMapFunctionality获取名为Element Graphics的DataTable
31 //ElementGraphicsLayers通常用来显示图形元素，例如显示Map中被选择的图形元素。图层并不用来存储属性，而可以存储不同的图形类型。
32 ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer elementGraphicsLayer = null;
33 foreach (System.Data.DataTable dataTable in adfGraphicsMapFunctionality.GraphicsDataSet.Tables)
34 {
35 if (dataTable.TableName == "Element Graphics")
36 {
37 elementGraphicsLayer = (ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer)dataTable;
38 break;
39 }
40 }
41 //如果名为Element Graphics的DataTable为null，就新建Element Graphics DataTable添加到adfGraphicsMapFunctionality.GraphicsDataSet中,同时刷新Toc1显示
42 if (elementGraphicsLayer == null)
43 {
44 elementGraphicsLayer = new ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer();
45 elementGraphicsLayer.TableName = "Element Graphics";
46 adfGraphicsMapFunctionality.GraphicsDataSet.Tables.Add(elementGraphicsLayer);
47 }
48
49 //定义标点样式
50 ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleMarkerSymbol simpleMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleMarkerSymbol();
51 //simpleMarkerSymbol.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.MarkerSymbolType.Star;
52 simpleMarkerSymbol.Color = System.Drawing.Color.Green;
53 simpleMarkerSymbol.Width = 10;
54
55 //定义标点选中样式
56 ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleMarkerSymbol simpleSelectedMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleMarkerSymbol();
57 simpleSelectedMarkerSymbol.Color = System.Drawing.Color.Yellow;
58 simpleSelectedMarkerSymbol.Width = 12;
59 simpleSelectedMarkerSymbol.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.MarkerSymbolType.Star;
60
61 ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement graphicElement = new ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement(adfPoint, simpleMarkerSymbol, simpleSelectedMarkerSymbol);
62 //把标点添加到elementGraphicsLayer
63 elementGraphicsLayer.Add(graphicElement);
64
65 }
66 else if(args is LineEventArgs)
67 {
68 //转成点
69 LineEventArgs lineEventArgs = (LineEventArgs)args;
70 //屏幕点
71 //屏幕坐标转成地理坐标
72 ESRI.ArcGIS.ADF.Web.Geometry.Point adfPoint1 = ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint(lineEventArgs.BeginPoint.X, lineEventArgs.BeginPoint.Y, adfMap.GetTransformationParams(ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap));
73 //屏幕坐标转成地理坐标
74 ESRI.ArcGIS.ADF.Web.Geometry.Point adfPoint2 = ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint(lineEventArgs.EndPoint.X, lineEventArgs.EndPoint.Y, adfMap.GetTransformationParams(ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap));
75 ESRI.ArcGIS.ADF.Web.Geometry.Path pa=new ESRI.ArcGIS.ADF.Web.Geometry.Path();
76 pa.Points.Add(adfPoint1);
77 pa.Points.Add(adfPoint2);
78 ESRI.ArcGIS.ADF.Web.Geometry.Polyline Line = new ESRI.ArcGIS.ADF.Web.Geometry.Polyline();
79 Line.Paths.Add(pa);
80
81 //MapFunctionality
82 foreach (ESRI.ArcGIS.ADF.Web.DataSources.IMapFunctionality mapFunctionality in adfMap.GetFunctionalities())
83 {
84 //当Resource为ADFGraphicsResource,ADFGraphicsResource为GraphicsLayer， 保存在内存中用显示临时图层
85 if (mapFunctionality.Resource.Name == "GraphicsResource")
86 {
87 adfGraphicsMapFunctionality = (ESRI.ArcGIS.ADF.Web.DataSources.Graphics.MapFunctionality)mapFunctionality;
88 break;
89 }
90 }
91 //从adfGraphicsMapFunctionality获取名为Element Graphics的DataTable
92 //ElementGraphicsLayers通常用来显示图形元素，例如显示Map中被选择的图形元素。图层并不用来存储属性，而可以存储不同的图形类型。
93 ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer elementGraphicsLayer = null;
94 foreach (System.Data.DataTable dataTable in adfGraphicsMapFunctionality.GraphicsDataSet.Tables)
95 {
96 if (dataTable.TableName == "Element Graphics")
97 {
98 elementGraphicsLayer = (ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer)dataTable;
99 break;
100 }
101 }
102 //如果名为Element Graphics的DataTable为null，就新建Element Graphics DataTable添加到adfGraphicsMapFunctionality.GraphicsDataSet中,同时刷新Toc1显示
103 if (elementGraphicsLayer == null)
104 {
105 elementGraphicsLayer = new ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer();
106 elementGraphicsLayer.TableName = "Element Graphics";
107 adfGraphicsMapFunctionality.GraphicsDataSet.Tables.Add(elementGraphicsLayer);
108 }
109
110 //定义标点样式
111 ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleLineSymbol simpleMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleLineSymbol();
112 //simpleMarkerSymbol.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.MarkerSymbolType.Star;
113 simpleMarkerSymbol.Color = System.Drawing.Color.Red;
114 simpleMarkerSymbol.Width = 3;
115 simpleMarkerSymbol.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.LineType.Dash;
116 //定义标点选中样式
117 ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleLineSymbol simpleSelectedMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleLineSymbol();
118 simpleSelectedMarkerSymbol.Color = System.Drawing.Color.Yellow;
119 simpleSelectedMarkerSymbol.Width = 3;
120 //simpleSelectedMarkerSymbol.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.MarkerSymbolType.Star;
121
122 ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement graphicElement = new ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement(Line, simpleMarkerSymbol, simpleSelectedMarkerSymbol);
123 //把标点添加到elementGraphicsLayer
124 elementGraphicsLayer.Add(graphicElement);
125
126 }
127 else if (args is PolylineEventArgs)
128 {
129 PolylineEventArgs lineEventArgs = (PolylineEventArgs)args;
130 ESRI.ArcGIS.ADF.Web.Geometry.Path pa = new ESRI.ArcGIS.ADF.Web.Geometry.Path();
131 for (int i = 0; i <= lineEventArgs.Vectors.Length - 1; i++)
132 {
133 ESRI.ArcGIS.ADF.Web.Geometry.Point point = ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint(lineEventArgs.Vectors[i].X, lineEventArgs.Vectors[i].Y, adfMap.GetTransformationParams(ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap));
134 pa.Points.Add(point);
135 }
136 ESRI.ArcGIS.ADF.Web.Geometry.Polyline Line = new ESRI.ArcGIS.ADF.Web.Geometry.Polyline();
137 Line.Paths.Add(pa);
138
139 //MapFunctionality
140 foreach (ESRI.ArcGIS.ADF.Web.DataSources.IMapFunctionality mapFunctionality in adfMap.GetFunctionalities())
141 {
142 //当Resource为ADFGraphicsResource,ADFGraphicsResource为GraphicsLayer， 保存在内存中用显示临时图层
143 if (mapFunctionality.Resource.Name == "GraphicsResource")
144 {
145 adfGraphicsMapFunctionality = (ESRI.ArcGIS.ADF.Web.DataSources.Graphics.MapFunctionality)mapFunctionality;
146 break;
147 }
148 }
149 //从adfGraphicsMapFunctionality获取名为Element Graphics的DataTable
150 //ElementGraphicsLayers通常用来显示图形元素，例如显示Map中被选择的图形元素。图层并不用来存储属性，而可以存储不同的图形类型。
151 ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer elementGraphicsLayer = null;
152 foreach (System.Data.DataTable dataTable in adfGraphicsMapFunctionality.GraphicsDataSet.Tables)
153 {
154 if (dataTable.TableName == "Element Graphics")
155 {
156 elementGraphicsLayer = (ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer)dataTable;
157 break;
158 }
159 }
160 //如果名为Element Graphics的DataTable为null，就新建Element Graphics DataTable添加到adfGraphicsMapFunctionality.GraphicsDataSet中,同时刷新Toc1显示
161 if (elementGraphicsLayer == null)
162 {
163 elementGraphicsLayer = new ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer();
164 elementGraphicsLayer.TableName = "Element Graphics";
165 adfGraphicsMapFunctionality.GraphicsDataSet.Tables.Add(elementGraphicsLayer);
166 }
167
168 //定义标点样式
169 ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleLineSymbol simpleMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleLineSymbol();
170 //simpleMarkerSymbol.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.MarkerSymbolType.Star;
171 simpleMarkerSymbol.Color = System.Drawing.Color.Red;
172 simpleMarkerSymbol.Width = 3;
173 simpleMarkerSymbol.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.LineType.Dash;
174 //定义标点选中样式
175 ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleLineSymbol simpleSelectedMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleLineSymbol();
176 simpleSelectedMarkerSymbol.Color = System.Drawing.Color.Yellow;
177 simpleSelectedMarkerSymbol.Width = 3;
178 //simpleSelectedMarkerSymbol.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.MarkerSymbolType.Star;
179
180 ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement graphicElement = new ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement(Line, simpleMarkerSymbol, simpleSelectedMarkerSymbol);
181 //把标点添加到elementGraphicsLayer
182 elementGraphicsLayer.Add(graphicElement);
183 }
184 else if (args is PolygonEventArgs)
185 {
186 PolygonEventArgs polygonEventArgs = (PolygonEventArgs)args;
187 ESRI.ArcGIS.ADF.Web.Geometry.Ring points = new ESRI.ArcGIS.ADF.Web.Geometry.Ring();
188 for (int i = 0; i <= polygonEventArgs.Vectors.Length - 1; i++)
189 {
190 ESRI.ArcGIS.ADF.Web.Geometry.Point point = ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint(polygonEventArgs.Vectors[i].X, polygonEventArgs.Vectors[i].Y, adfMap.GetTransformationParams(ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap));
191 points.Points.Add(point);
192 }
193 ESRI.ArcGIS.ADF.Web.Geometry.Polygon polygon = new ESRI.ArcGIS.ADF.Web.Geometry.Polygon();
194 polygon.Rings.Add(points);
195
196 //MapFunctionality
197 foreach (ESRI.ArcGIS.ADF.Web.DataSources.IMapFunctionality mapFunctionality in adfMap.GetFunctionalities())
198 {
199 //当Resource为ADFGraphicsResource,ADFGraphicsResource为GraphicsLayer， 保存在内存中用显示临时图层
200 if (mapFunctionality.Resource.Name == "GraphicsResource")
201 {
202 adfGraphicsMapFunctionality = (ESRI.ArcGIS.ADF.Web.DataSources.Graphics.MapFunctionality)mapFunctionality;
203 break;
204 }
205 }
206 //从adfGraphicsMapFunctionality获取名为Element Graphics的DataTable
207 //ElementGraphicsLayers通常用来显示图形元素，例如显示Map中被选择的图形元素。图层并不用来存储属性，而可以存储不同的图形类型。
208 ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer elementGraphicsLayer = null;
209 foreach (System.Data.DataTable dataTable in adfGraphicsMapFunctionality.GraphicsDataSet.Tables)
210 {
211 if (dataTable.TableName == "Element Graphics")
212 {
213 elementGraphicsLayer = (ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer)dataTable;
214 break;
215 }
216 }
217 //如果名为Element Graphics的DataTable为null，就新建Element Graphics DataTable添加到adfGraphicsMapFunctionality.GraphicsDataSet中,同时刷新Toc1显示
218 if (elementGraphicsLayer == null)
219 {
220 elementGraphicsLayer = new ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer();
221 elementGraphicsLayer.TableName = "Element Graphics";
222 adfGraphicsMapFunctionality.GraphicsDataSet.Tables.Add(elementGraphicsLayer);
223 }
224
225 ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol simpleMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol();
226 simpleMarkerSymbol.Color = System.Drawing.Color.Yellow;
227 simpleMarkerSymbol.FillType= ESRI.ArcGIS.ADF.Web.Display.Symbol.PolygonFillType.DiagCross;
228
229 ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol simpleSelectedMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol();
230 ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement graphicElement = new ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement(polygon, simpleMarkerSymbol, simpleSelectedMarkerSymbol);
231 //把标点添加到elementGraphicsLayer
232 elementGraphicsLayer.Add(graphicElement);
233
234 }
235 else if (args is CircleEventArgs)
236 {
237 CircleEventArgs circleEventArgs = (CircleEventArgs)args;
238
239 ESRI.ArcGIS.ADF.Web.Geometry.PointCollection pc = new ESRI.ArcGIS.ADF.Web.Geometry.PointCollection();
240 double degree;
241 double rad = circleEventArgs.Radius;
242 for (int i = 0; i < 359; i++)
243 {
244 degree = i * (Math.PI / 180);
245 double x = circleEventArgs.CenterPoint.X + Math.Cos(degree) * rad;
246 double y = circleEventArgs.CenterPoint.Y + Math.Sin(degree) * rad;
247 ESRI.ArcGIS.ADF.Web.Geometry.Point nPoint = ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint((int)Math.Round(x),(int)Math.Round(y), adfMap.GetTransformationParams(ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap));
248 pc.Add(nPoint);
249 }
250 ESRI.ArcGIS.ADF.Web.Geometry.Ring ring = new ESRI.ArcGIS.ADF.Web.Geometry.Ring();
251 ring.Points = pc;
252 ESRI.ArcGIS.ADF.Web.Geometry.RingCollection rings = new ESRI.ArcGIS.ADF.Web.Geometry.RingCollection();
253 rings.Add(ring);
254 ESRI.ArcGIS.ADF.Web.Geometry.Polygon polygon = new ESRI.ArcGIS.ADF.Web.Geometry.Polygon();
255 polygon.Rings = rings;
256
257 //MapFunctionality
258 foreach (ESRI.ArcGIS.ADF.Web.DataSources.IMapFunctionality mapFunctionality in adfMap.GetFunctionalities())
259 {
260 //当Resource为ADFGraphicsResource,ADFGraphicsResource为GraphicsLayer， 保存在内存中用显示临时图层
261 if (mapFunctionality.Resource.Name == "GraphicsResource")
262 {
263 adfGraphicsMapFunctionality = (ESRI.ArcGIS.ADF.Web.DataSources.Graphics.MapFunctionality)mapFunctionality;
264 break;
265 }
266 }
267 //从adfGraphicsMapFunctionality获取名为Element Graphics的DataTable
268 //ElementGraphicsLayers通常用来显示图形元素，例如显示Map中被选择的图形元素。图层并不用来存储属性，而可以存储不同的图形类型。
269 ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer elementGraphicsLayer = null;
270 foreach (System.Data.DataTable dataTable in adfGraphicsMapFunctionality.GraphicsDataSet.Tables)
271 {
272 if (dataTable.TableName == "Element Graphics")
273 {
274 elementGraphicsLayer = (ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer)dataTable;
275 break;
276 }
277 }
278 //如果名为Element Graphics的DataTable为null，就新建Element Graphics DataTable添加到adfGraphicsMapFunctionality.GraphicsDataSet中,同时刷新Toc1显示
279 if (elementGraphicsLayer == null)
280 {
281 elementGraphicsLayer = new ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer();
282 elementGraphicsLayer.TableName = "Element Graphics";
283 adfGraphicsMapFunctionality.GraphicsDataSet.Tables.Add(elementGraphicsLayer);
284 }
285
286 ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol simpleMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol();
287 simpleMarkerSymbol.Color = System.Drawing.Color.Yellow;
288 simpleMarkerSymbol.FillType = ESRI.ArcGIS.ADF.Web.Display.Symbol.PolygonFillType.DiagCross;
289
290 ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol simpleSelectedMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol();
291 ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement graphicElement = new ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement(polygon, simpleMarkerSymbol, simpleSelectedMarkerSymbol);
292 //把标点添加到elementGraphicsLayer
293 elementGraphicsLayer.Add(graphicElement);
294
295 }
296 else if(args is RectangleEventArgs)
297 {
298 RectangleEventArgs rectargs = (RectangleEventArgs)args;
299 //矩形
300 System.Drawing.Rectangle myrect = rectargs.ScreenExtent;
301 //矩形左下定点坐标转换成地理坐标
302 ESRI.ArcGIS.ADF.Web.Geometry.Point minpnt = ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint(myrect.Left, myrect.Bottom, adfMap.GetTransformationParams(ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap));
303 //矩形右上定点坐标转换成地理坐标
304 ESRI.ArcGIS.ADF.Web.Geometry.Point maxpnt = ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint(myrect.Right, myrect.Top, adfMap.GetTransformationParams(ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap));
305 //
306 ESRI.ArcGIS.ADF.Web.Geometry.Envelope mappoly = new ESRI.ArcGIS.ADF.Web.Geometry.Envelope(minpnt, maxpnt);
307
308 //MapFunctionality
309 foreach (ESRI.ArcGIS.ADF.Web.DataSources.IMapFunctionality mapFunctionality in adfMap.GetFunctionalities())
310 {
311 //当Resource为ADFGraphicsResource,ADFGraphicsResource为GraphicsLayer， 保存在内存中用显示临时图层
312 if (mapFunctionality.Resource.Name == "GraphicsResource")
313 {
314 adfGraphicsMapFunctionality = (ESRI.ArcGIS.ADF.Web.DataSources.Graphics.MapFunctionality)mapFunctionality;
315 break;
316 }
317 }
318 //从adfGraphicsMapFunctionality获取名为Element Graphics的DataTable
319 //ElementGraphicsLayers通常用来显示图形元素，例如显示Map中被选择的图形元素。图层并不用来存储属性，而可以存储不同的图形类型。
320 ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer elementGraphicsLayer = null;
321 foreach (System.Data.DataTable dataTable in adfGraphicsMapFunctionality.GraphicsDataSet.Tables)
322 {
323 if (dataTable.TableName == "Element Graphics")
324 {
325 elementGraphicsLayer = (ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer)dataTable;
326 break;
327 }
328 }
329 //如果名为Element Graphics的DataTable为null，就新建Element Graphics DataTable添加到adfGraphicsMapFunctionality.GraphicsDataSet中,同时刷新Toc1显示
330 if (elementGraphicsLayer == null)
331 {
332 elementGraphicsLayer = new ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer();
333 elementGraphicsLayer.TableName = "Element Graphics";
334 adfGraphicsMapFunctionality.GraphicsDataSet.Tables.Add(elementGraphicsLayer);
335 }
336
337 ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol simpleMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol();
338 simpleMarkerSymbol.Color = System.Drawing.Color.Yellow;
339 simpleMarkerSymbol.FillType = ESRI.ArcGIS.ADF.Web.Display.Symbol.PolygonFillType.DiagCross;
340
341 ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol simpleSelectedMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol();
342 ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement graphicElement = new ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement(mappoly, simpleMarkerSymbol, simpleSelectedMarkerSymbol);
343 //把标点添加到elementGraphicsLayer
344 elementGraphicsLayer.Add(graphicElement);
345
346 }
347
348 //刷新显示
349 if (adfMap.ImageBlendingMode == ImageBlendingMode.WebTier)
350 {
351 //整个地图控件刷新
352 adfMap.Refresh();
353 }
354 else
355 {
356 //只刷新部分Resource
357 adfMap.RefreshResource(adfGraphicsMapFunctionality.Resource.Name);
358 }
359 }
360
361
}
public class AddTool:IMapServerToolAction 2
{
3
4
5
public void ServerAction(ESRI.ArcGIS.ADF.Web.UI.WebControls.ToolEventArgs args)6
{
7
//获取map控件8
ESRI.ArcGIS.ADF.Web.UI.WebControls.Map adfMap = (ESRI.ArcGIS.ADF.Web.UI.WebControls.Map)args.Control;9
ESRI.ArcGIS.ADF.Web.DataSources.Graphics.MapFunctionality adfGraphicsMapFunctionality = null;10
11
if (args is PointEventArgs)12
{13
//转成点14
PointEventArgs pointEventArgs = (PointEventArgs)args;15
//屏幕点16
System.Drawing.Point screenPoint = pointEventArgs.ScreenPoint;17
//屏幕坐标转成地理坐标18
ESRI.ArcGIS.ADF.Web.Geometry.Point adfPoint = ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint(screenPoint.X, screenPoint.Y, adfMap.GetTransformationParams(ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap));19
20
//MapFunctionality21
foreach (ESRI.ArcGIS.ADF.Web.DataSources.IMapFunctionality mapFunctionality in adfMap.GetFunctionalities())22
{23
//当Resource为ADFGraphicsResource,ADFGraphicsResource为GraphicsLayer， 保存在内存中用显示临时图层24
if (mapFunctionality.Resource.Name == "GraphicsResource")25
{26
adfGraphicsMapFunctionality = (ESRI.ArcGIS.ADF.Web.DataSources.Graphics.MapFunctionality)mapFunctionality;27
break;28
}29
}30
//从adfGraphicsMapFunctionality获取名为Element Graphics的DataTable31
//ElementGraphicsLayers通常用来显示图形元素，例如显示Map中被选择的图形元素。图层并不用来存储属性，而可以存储不同的图形类型。32
ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer elementGraphicsLayer = null;33
foreach (System.Data.DataTable dataTable in adfGraphicsMapFunctionality.GraphicsDataSet.Tables)34
{35
if (dataTable.TableName == "Element Graphics")36
{37
elementGraphicsLayer = (ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer)dataTable;38
break;39
}40
}41
//如果名为Element Graphics的DataTable为null，就新建Element Graphics DataTable添加到adfGraphicsMapFunctionality.GraphicsDataSet中,同时刷新Toc1显示42
if (elementGraphicsLayer == null)43
{44
elementGraphicsLayer = new ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer();45
elementGraphicsLayer.TableName = "Element Graphics";46
adfGraphicsMapFunctionality.GraphicsDataSet.Tables.Add(elementGraphicsLayer);47
}48
49
//定义标点样式50
ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleMarkerSymbol simpleMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleMarkerSymbol();51
//simpleMarkerSymbol.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.MarkerSymbolType.Star;52
simpleMarkerSymbol.Color = System.Drawing.Color.Green;53
simpleMarkerSymbol.Width = 10;54
55
//定义标点选中样式56
ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleMarkerSymbol simpleSelectedMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleMarkerSymbol();57
simpleSelectedMarkerSymbol.Color = System.Drawing.Color.Yellow;58
simpleSelectedMarkerSymbol.Width = 12;59
simpleSelectedMarkerSymbol.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.MarkerSymbolType.Star;60
61
ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement graphicElement = new ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement(adfPoint, simpleMarkerSymbol, simpleSelectedMarkerSymbol);62
//把标点添加到elementGraphicsLayer63
elementGraphicsLayer.Add(graphicElement);64
65
}66
else if(args is LineEventArgs)67
{68
//转成点69
LineEventArgs lineEventArgs = (LineEventArgs)args;70
//屏幕点71
//屏幕坐标转成地理坐标72
ESRI.ArcGIS.ADF.Web.Geometry.Point adfPoint1 = ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint(lineEventArgs.BeginPoint.X, lineEventArgs.BeginPoint.Y, adfMap.GetTransformationParams(ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap));73
//屏幕坐标转成地理坐标74
ESRI.ArcGIS.ADF.Web.Geometry.Point adfPoint2 = ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint(lineEventArgs.EndPoint.X, lineEventArgs.EndPoint.Y, adfMap.GetTransformationParams(ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap));75
ESRI.ArcGIS.ADF.Web.Geometry.Path pa=new ESRI.ArcGIS.ADF.Web.Geometry.Path();76
pa.Points.Add(adfPoint1);77
pa.Points.Add(adfPoint2);78
ESRI.ArcGIS.ADF.Web.Geometry.Polyline Line = new ESRI.ArcGIS.ADF.Web.Geometry.Polyline();79
Line.Paths.Add(pa);80
81
//MapFunctionality82
foreach (ESRI.ArcGIS.ADF.Web.DataSources.IMapFunctionality mapFunctionality in adfMap.GetFunctionalities())83
{84
//当Resource为ADFGraphicsResource,ADFGraphicsResource为GraphicsLayer， 保存在内存中用显示临时图层85
if (mapFunctionality.Resource.Name == "GraphicsResource")86
{87
adfGraphicsMapFunctionality = (ESRI.ArcGIS.ADF.Web.DataSources.Graphics.MapFunctionality)mapFunctionality;88
break;89
}90
}91
//从adfGraphicsMapFunctionality获取名为Element Graphics的DataTable92
//ElementGraphicsLayers通常用来显示图形元素，例如显示Map中被选择的图形元素。图层并不用来存储属性，而可以存储不同的图形类型。93
ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer elementGraphicsLayer = null;94
foreach (System.Data.DataTable dataTable in adfGraphicsMapFunctionality.GraphicsDataSet.Tables)95
{96
if (dataTable.TableName == "Element Graphics")97
{98
elementGraphicsLayer = (ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer)dataTable;99
break;100
}101
}102
//如果名为Element Graphics的DataTable为null，就新建Element Graphics DataTable添加到adfGraphicsMapFunctionality.GraphicsDataSet中,同时刷新Toc1显示103
if (elementGraphicsLayer == null)104
{105
elementGraphicsLayer = new ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer();106
elementGraphicsLayer.TableName = "Element Graphics";107
adfGraphicsMapFunctionality.GraphicsDataSet.Tables.Add(elementGraphicsLayer);108
}109
110
//定义标点样式111
ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleLineSymbol simpleMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleLineSymbol();112
//simpleMarkerSymbol.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.MarkerSymbolType.Star;113
simpleMarkerSymbol.Color = System.Drawing.Color.Red;114
simpleMarkerSymbol.Width = 3;115
simpleMarkerSymbol.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.LineType.Dash;116
//定义标点选中样式117
ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleLineSymbol simpleSelectedMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleLineSymbol();118
simpleSelectedMarkerSymbol.Color = System.Drawing.Color.Yellow;119
simpleSelectedMarkerSymbol.Width = 3;120
//simpleSelectedMarkerSymbol.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.MarkerSymbolType.Star;121
122
ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement graphicElement = new ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement(Line, simpleMarkerSymbol, simpleSelectedMarkerSymbol);123
//把标点添加到elementGraphicsLayer124
elementGraphicsLayer.Add(graphicElement);125
126
}127
else if (args is PolylineEventArgs)128
{129
PolylineEventArgs lineEventArgs = (PolylineEventArgs)args;130
ESRI.ArcGIS.ADF.Web.Geometry.Path pa = new ESRI.ArcGIS.ADF.Web.Geometry.Path();131
for (int i = 0; i <= lineEventArgs.Vectors.Length - 1; i++)132
{133
ESRI.ArcGIS.ADF.Web.Geometry.Point point = ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint(lineEventArgs.Vectors[i].X, lineEventArgs.Vectors[i].Y, adfMap.GetTransformationParams(ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap));134
pa.Points.Add(point);135
}136
ESRI.ArcGIS.ADF.Web.Geometry.Polyline Line = new ESRI.ArcGIS.ADF.Web.Geometry.Polyline();137
Line.Paths.Add(pa);138
139
//MapFunctionality140
foreach (ESRI.ArcGIS.ADF.Web.DataSources.IMapFunctionality mapFunctionality in adfMap.GetFunctionalities())141
{142
//当Resource为ADFGraphicsResource,ADFGraphicsResource为GraphicsLayer， 保存在内存中用显示临时图层143
if (mapFunctionality.Resource.Name == "GraphicsResource")144
{145
adfGraphicsMapFunctionality = (ESRI.ArcGIS.ADF.Web.DataSources.Graphics.MapFunctionality)mapFunctionality;146
break;147
}148
}149
//从adfGraphicsMapFunctionality获取名为Element Graphics的DataTable150
//ElementGraphicsLayers通常用来显示图形元素，例如显示Map中被选择的图形元素。图层并不用来存储属性，而可以存储不同的图形类型。151
ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer elementGraphicsLayer = null;152
foreach (System.Data.DataTable dataTable in adfGraphicsMapFunctionality.GraphicsDataSet.Tables)153
{154
if (dataTable.TableName == "Element Graphics")155
{156
elementGraphicsLayer = (ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer)dataTable;157
break;158
}159
}160
//如果名为Element Graphics的DataTable为null，就新建Element Graphics DataTable添加到adfGraphicsMapFunctionality.GraphicsDataSet中,同时刷新Toc1显示161
if (elementGraphicsLayer == null)162
{163
elementGraphicsLayer = new ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer();164
elementGraphicsLayer.TableName = "Element Graphics";165
adfGraphicsMapFunctionality.GraphicsDataSet.Tables.Add(elementGraphicsLayer);166
}167
168
//定义标点样式169
ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleLineSymbol simpleMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleLineSymbol();170
//simpleMarkerSymbol.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.MarkerSymbolType.Star;171
simpleMarkerSymbol.Color = System.Drawing.Color.Red;172
simpleMarkerSymbol.Width = 3;173
simpleMarkerSymbol.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.LineType.Dash;174
//定义标点选中样式175
ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleLineSymbol simpleSelectedMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleLineSymbol();176
simpleSelectedMarkerSymbol.Color = System.Drawing.Color.Yellow;177
simpleSelectedMarkerSymbol.Width = 3;178
//simpleSelectedMarkerSymbol.Type = ESRI.ArcGIS.ADF.Web.Display.Symbol.MarkerSymbolType.Star;179
180
ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement graphicElement = new ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement(Line, simpleMarkerSymbol, simpleSelectedMarkerSymbol);181
//把标点添加到elementGraphicsLayer182
elementGraphicsLayer.Add(graphicElement);183
}184
else if (args is PolygonEventArgs)185
{186
PolygonEventArgs polygonEventArgs = (PolygonEventArgs)args;187
ESRI.ArcGIS.ADF.Web.Geometry.Ring points = new ESRI.ArcGIS.ADF.Web.Geometry.Ring();188
for (int i = 0; i <= polygonEventArgs.Vectors.Length - 1; i++)189
{190
ESRI.ArcGIS.ADF.Web.Geometry.Point point = ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint(polygonEventArgs.Vectors[i].X, polygonEventArgs.Vectors[i].Y, adfMap.GetTransformationParams(ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap));191
points.Points.Add(point);192
}193
ESRI.ArcGIS.ADF.Web.Geometry.Polygon polygon = new ESRI.ArcGIS.ADF.Web.Geometry.Polygon();194
polygon.Rings.Add(points);195
196
//MapFunctionality197
foreach (ESRI.ArcGIS.ADF.Web.DataSources.IMapFunctionality mapFunctionality in adfMap.GetFunctionalities())198
{199
//当Resource为ADFGraphicsResource,ADFGraphicsResource为GraphicsLayer， 保存在内存中用显示临时图层200
if (mapFunctionality.Resource.Name == "GraphicsResource")201
{202
adfGraphicsMapFunctionality = (ESRI.ArcGIS.ADF.Web.DataSources.Graphics.MapFunctionality)mapFunctionality;203
break;204
}205
}206
//从adfGraphicsMapFunctionality获取名为Element Graphics的DataTable207
//ElementGraphicsLayers通常用来显示图形元素，例如显示Map中被选择的图形元素。图层并不用来存储属性，而可以存储不同的图形类型。208
ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer elementGraphicsLayer = null;209
foreach (System.Data.DataTable dataTable in adfGraphicsMapFunctionality.GraphicsDataSet.Tables)210
{211
if (dataTable.TableName == "Element Graphics")212
{213
elementGraphicsLayer = (ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer)dataTable;214
break;215
}216
}217
//如果名为Element Graphics的DataTable为null，就新建Element Graphics DataTable添加到adfGraphicsMapFunctionality.GraphicsDataSet中,同时刷新Toc1显示218
if (elementGraphicsLayer == null)219
{220
elementGraphicsLayer = new ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer();221
elementGraphicsLayer.TableName = "Element Graphics";222
adfGraphicsMapFunctionality.GraphicsDataSet.Tables.Add(elementGraphicsLayer);223
}224
225
ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol simpleMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol();226
simpleMarkerSymbol.Color = System.Drawing.Color.Yellow;227
simpleMarkerSymbol.FillType= ESRI.ArcGIS.ADF.Web.Display.Symbol.PolygonFillType.DiagCross;228
229
ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol simpleSelectedMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol();230
ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement graphicElement = new ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement(polygon, simpleMarkerSymbol, simpleSelectedMarkerSymbol);231
//把标点添加到elementGraphicsLayer232
elementGraphicsLayer.Add(graphicElement);233
234
}235
else if (args is CircleEventArgs)236
{237
CircleEventArgs circleEventArgs = (CircleEventArgs)args;238
239
ESRI.ArcGIS.ADF.Web.Geometry.PointCollection pc = new ESRI.ArcGIS.ADF.Web.Geometry.PointCollection();240
double degree;241
double rad = circleEventArgs.Radius;242
for (int i = 0; i < 359; i++)243
{ 244
degree = i * (Math.PI / 180);245
double x = circleEventArgs.CenterPoint.X + Math.Cos(degree) * rad;246
double y = circleEventArgs.CenterPoint.Y + Math.Sin(degree) * rad;247
ESRI.ArcGIS.ADF.Web.Geometry.Point nPoint = ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint((int)Math.Round(x),(int)Math.Round(y), adfMap.GetTransformationParams(ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap));248
pc.Add(nPoint);249
}250
ESRI.ArcGIS.ADF.Web.Geometry.Ring ring = new ESRI.ArcGIS.ADF.Web.Geometry.Ring();251
ring.Points = pc;252
ESRI.ArcGIS.ADF.Web.Geometry.RingCollection rings = new ESRI.ArcGIS.ADF.Web.Geometry.RingCollection();253
rings.Add(ring);254
ESRI.ArcGIS.ADF.Web.Geometry.Polygon polygon = new ESRI.ArcGIS.ADF.Web.Geometry.Polygon();255
polygon.Rings = rings;256
257
//MapFunctionality258
foreach (ESRI.ArcGIS.ADF.Web.DataSources.IMapFunctionality mapFunctionality in adfMap.GetFunctionalities())259
{260
//当Resource为ADFGraphicsResource,ADFGraphicsResource为GraphicsLayer， 保存在内存中用显示临时图层261
if (mapFunctionality.Resource.Name == "GraphicsResource")262
{263
adfGraphicsMapFunctionality = (ESRI.ArcGIS.ADF.Web.DataSources.Graphics.MapFunctionality)mapFunctionality;264
break;265
}266
}267
//从adfGraphicsMapFunctionality获取名为Element Graphics的DataTable268
//ElementGraphicsLayers通常用来显示图形元素，例如显示Map中被选择的图形元素。图层并不用来存储属性，而可以存储不同的图形类型。269
ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer elementGraphicsLayer = null;270
foreach (System.Data.DataTable dataTable in adfGraphicsMapFunctionality.GraphicsDataSet.Tables)271
{272
if (dataTable.TableName == "Element Graphics")273
{274
elementGraphicsLayer = (ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer)dataTable;275
break;276
}277
}278
//如果名为Element Graphics的DataTable为null，就新建Element Graphics DataTable添加到adfGraphicsMapFunctionality.GraphicsDataSet中,同时刷新Toc1显示279
if (elementGraphicsLayer == null)280
{281
elementGraphicsLayer = new ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer();282
elementGraphicsLayer.TableName = "Element Graphics";283
adfGraphicsMapFunctionality.GraphicsDataSet.Tables.Add(elementGraphicsLayer);284
}285
286
ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol simpleMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol();287
simpleMarkerSymbol.Color = System.Drawing.Color.Yellow;288
simpleMarkerSymbol.FillType = ESRI.ArcGIS.ADF.Web.Display.Symbol.PolygonFillType.DiagCross;289
290
ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol simpleSelectedMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol();291
ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement graphicElement = new ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement(polygon, simpleMarkerSymbol, simpleSelectedMarkerSymbol);292
//把标点添加到elementGraphicsLayer293
elementGraphicsLayer.Add(graphicElement);294
295
}296
else if(args is RectangleEventArgs)297
{298
RectangleEventArgs rectargs = (RectangleEventArgs)args;299
//矩形300
System.Drawing.Rectangle myrect = rectargs.ScreenExtent;301
//矩形左下定点坐标转换成地理坐标302
ESRI.ArcGIS.ADF.Web.Geometry.Point minpnt = ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint(myrect.Left, myrect.Bottom, adfMap.GetTransformationParams(ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap));303
//矩形右上定点坐标转换成地理坐标304
ESRI.ArcGIS.ADF.Web.Geometry.Point maxpnt = ESRI.ArcGIS.ADF.Web.Geometry.Point.ToMapPoint(myrect.Right, myrect.Top, adfMap.GetTransformationParams(ESRI.ArcGIS.ADF.Web.Geometry.TransformationDirection.ToMap));305
//306
ESRI.ArcGIS.ADF.Web.Geometry.Envelope mappoly = new ESRI.ArcGIS.ADF.Web.Geometry.Envelope(minpnt, maxpnt);307
308
//MapFunctionality309
foreach (ESRI.ArcGIS.ADF.Web.DataSources.IMapFunctionality mapFunctionality in adfMap.GetFunctionalities())310
{311
//当Resource为ADFGraphicsResource,ADFGraphicsResource为GraphicsLayer， 保存在内存中用显示临时图层312
if (mapFunctionality.Resource.Name == "GraphicsResource")313
{314
adfGraphicsMapFunctionality = (ESRI.ArcGIS.ADF.Web.DataSources.Graphics.MapFunctionality)mapFunctionality;315
break;316
}317
}318
//从adfGraphicsMapFunctionality获取名为Element Graphics的DataTable319
//ElementGraphicsLayers通常用来显示图形元素，例如显示Map中被选择的图形元素。图层并不用来存储属性，而可以存储不同的图形类型。320
ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer elementGraphicsLayer = null;321
foreach (System.Data.DataTable dataTable in adfGraphicsMapFunctionality.GraphicsDataSet.Tables)322
{323
if (dataTable.TableName == "Element Graphics")324
{325
elementGraphicsLayer = (ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer)dataTable;326
break;327
}328
}329
//如果名为Element Graphics的DataTable为null，就新建Element Graphics DataTable添加到adfGraphicsMapFunctionality.GraphicsDataSet中,同时刷新Toc1显示330
if (elementGraphicsLayer == null)331
{332
elementGraphicsLayer = new ESRI.ArcGIS.ADF.Web.Display.Graphics.ElementGraphicsLayer();333
elementGraphicsLayer.TableName = "Element Graphics";334
adfGraphicsMapFunctionality.GraphicsDataSet.Tables.Add(elementGraphicsLayer);335
}336
337
ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol simpleMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol();338
simpleMarkerSymbol.Color = System.Drawing.Color.Yellow;339
simpleMarkerSymbol.FillType = ESRI.ArcGIS.ADF.Web.Display.Symbol.PolygonFillType.DiagCross;340
341
ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol simpleSelectedMarkerSymbol = new ESRI.ArcGIS.ADF.Web.Display.Symbol.SimpleFillSymbol();342
ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement graphicElement = new ESRI.ArcGIS.ADF.Web.Display.Graphics.GraphicElement(mappoly, simpleMarkerSymbol, simpleSelectedMarkerSymbol);343
//把标点添加到elementGraphicsLayer344
elementGraphicsLayer.Add(graphicElement);345
346
}347
348
//刷新显示349
if (adfMap.ImageBlendingMode == ImageBlendingMode.WebTier)350
{351
//整个地图控件刷新352
adfMap.Refresh();353
}354
else355
{356
//只刷新部分Resource357
adfMap.RefreshResource(adfGraphicsMapFunctionality.Resource.Name);358
}359
}360
361
}