以下两个类对MapXtrme2004 asp.net鹰眼功能进行了完全的封装。
用法：
1
private void Page_Load(object sender, System.EventArgs e)
2
{
3
// 在此处放置用户代码以初始化页面
4 Overview oc = new Overview(MapControl1,MapControl2);
5
6 if(!IsPostBack)
7
{
8
9
10
}
11
}
private void Page_Load(object sender, System.EventArgs e)2
{
3
// 在此处放置用户代码以初始化页面4
Overview oc = new Overview(MapControl1,MapControl2);5
6
if(!IsPostBack)7
{
8
9
10
}11
}
1/* 作者:xiexiaokui
2 * 时间:2005-10-18
3 * 功能:asp.net鹰眼
4 */
5using System;
6using MapInfo.Web.UI.WebControls;
7using MapInfo.Geometry;
8using MapInfo.Styles;
9using System.Drawing;
10using MapInfo.Data;
11
12 /// <summary>
13 /// OverviewTool 的摘要说明。
14 /// </summary>
15public class OverviewMapToolEventArgs:System.EventArgs
16{
17 System.Drawing.Point[] m_points;
18 public OverviewMapToolEventArgs(System.Drawing.Point[] points)
19 {
20 this.m_points = points;
21 }
22
23 public System.Drawing.Point[] Points
24 {
25 get
26 {
27 return m_points;
28 }
29 set
30 {
31 m_points = value;
32 }
33 }
34
35}
36
37public delegate void OverviewMapToolEventHandler(object sender,OverviewMapToolEventArgs e);
38
39
40public class OverviewMapTool:MapTool
41{
42 public static readonly string Toolname = "MapInfoWebOverview";
43 // public DPoint Point1,Point2;
44
45 string m_clientCodeSource;
46 string m_clientStartMethod;
47 string m_clientStopMethod;
48 string m_cursorUrl;
49 string m_name;
50
51
52 public event OverviewMapToolEventHandler OverviewMapToolStop;
53
54 protected void OnOverviewMapToolStop(OverviewMapToolEventArgs e)
55 {
56 if(this.OverviewMapToolStop != null)
57 this.OverviewMapToolStop(this,e);
58 }
59
60 public OverviewMapTool()
61 {
62 this.ClientStartMethod = "MapInfoWebRectangleStart";
63 this.ClientStopMethod = "MapInfoWebRectangleStop";
64 this.Name = Toolname;
65 }
66 public override string ClientCodeSource
67 {
68 get
69 {
70 return m_clientCodeSource;
71 }
72 set
73 {
74 m_clientCodeSource = value;
75 }
76 }
77
78 public override string ClientStartMethod
79 {
80 get
81 {
82 return m_clientStartMethod;
83 }
84 set
85 {
86 m_clientStartMethod = value;
87 }
88 }
89 public override string ClientStopMethod
90 {
91 get
92 {
93 return m_clientStopMethod;
94 }
95 set
96 {
97 m_clientStopMethod = value;
98 }
99 }
100 public override string CursorUrl
101 {
102 get
103 {
104 return m_cursorUrl;
105 }
106 set
107 {
108 m_cursorUrl = value;
109 }
110 }
111 public override string Name
112 {
113 get
114 {
115 return m_name;
116 }
117 set
118 {
119 m_name = value;
120 }
121 }
122
123
124 public override void Execute(string dataString, System.Collections.ArrayList selLayers, MapInfo.Mapping.Map map)
125 {
126
127 // DPoint dp1,dp2;
128 System.Drawing.Point[] points = base.ExtractPoints(dataString);
129 // map.DisplayTransform.FromDisplay(points[0],out dp1);
130 // map.DisplayTransform.FromDisplay(points[1],out dp2);
131
132
133 this.OnOverviewMapToolStop(new OverviewMapToolEventArgs(points));
134 // OverviewMapTool omt = (OverviewMapTool)this.MapControl2.MapTools[MapControl2.MapTools.Count-1];
135 // MapInfo.Geometry.DPoint dp1 = omt.Point1;
136 // MapInfo.Geometry.DPoint dp2 = omt.Point2;
137 // System.Drawing.Point p1,p2;
138
139 // MapControl2.Map.DisplayTransform.ToDisplay(dp1,out p1);
140 // MapControl2.Map.DisplayTransform.ToDisplay(dp2,out p2);
141// if(Math.Min(Math.Abs(points[0].X-points[1].X),Math.Abs(points[0].Y-points[1].Y))<5)
142// {
143// m_mainMapControl.Map.Center = dp1;
144// }
145// else
146// {
147// MapInfo.Geometry.DRect rect = new DRect(dp1,dp2);
148// m_mainMapControl.Map.SetView(rect,m_mainMapControl.Map.GetDisplayCoordSys());
149// }
150
151 }
152
153
154}
155class Overview
156{
157
158 MapInfo.Web.UI.WebControls.MapControl m_mainMapControl;
159 MapInfo.Web.UI.WebControls.MapControl m_overviewMapControl;
160 public Overview(MapInfo.Web.UI.WebControls.MapControl mainMapControl,MapInfo.Web.UI.WebControls.MapControl overviewMapControl)
161 {
162 MainMapControl = mainMapControl;
163 OverviewMapControl = overviewMapControl;
164 }
165
166 public MapInfo.Web.UI.WebControls.MapControl MainMapControl
167 {
168 get
169 {
170 return m_mainMapControl;
171 }
172 set
173 {
174 m_mainMapControl = value;
175 m_mainMapControl.PreRender += new EventHandler(MainMapControl_PreRender);
176 }
177 }
178 public MapInfo.Web.UI.WebControls.MapControl OverviewMapControl
179 {
180 get
181 {
182 return m_overviewMapControl;
183 }
184 set
185 {
186
187
188 MapInfo.Data.Table table = MapInfo.Engine.Session.Current.Catalog.GetTable("temp_overview");
189 m_overviewMapControl = value;
190 OverviewMapTool omt = new OverviewMapTool();
191 omt.OverviewMapToolStop += new OverviewMapToolEventHandler(omt_OverviewMapToolStop);
192 this.m_overviewMapControl.MapTools.Add(omt);
193 this.m_overviewMapControl.MapTools.CurrentTool = omt.Name;
194 if(table == null)
195 {
196
197
198 this.m_overviewMapControl.Map.Load(new MapInfo.Mapping.MapTableLoader(m_mainMapControl.Map.Layers.GetTableEnumerator()));
199
200 MapInfo.Data.TableInfo ti = MapInfo.Data.TableInfoFactory.CreateTemp("temp_overview");
201 MapInfo.Data.TableSessionInfo tsi = new MapInfo.Data.TableSessionInfo();
202
203 table = MapInfo.Engine.Session.Current.Catalog.CreateTable(ti);
204
205 MapInfo.Mapping.FeatureLayer fl = new MapInfo.Mapping.FeatureLayer(table);
206 m_overviewMapControl.Map.Layers.Insert(0,fl);
207 }
208
209 }
210 }
211 protected void MainMapControl_PreRender(object sender, EventArgs e)
212 {
213
214 DRect dr = this.m_mainMapControl.Map.Bounds;
215 FeatureGeometry fg = new MapInfo.Geometry.Rectangle(m_mainMapControl.Map.GetDisplayCoordSys(),dr);
216 MapInfo.Styles.SimpleLineStyle sls = new MapInfo.Styles.SimpleLineStyle(new LineWidth(1,LineWidthUnit.Pixel),2,Color.Red);
217 MapInfo.Styles.SimpleInterior si = new MapInfo.Styles.SimpleInterior(1);
218 MapInfo.Styles.AreaStyle arst = new MapInfo.Styles.AreaStyle(sls,si);
219 // MapInfo.Styles.CompositeStyle cs = new MapInfo.Styles.CompositeStyle(arst,null,null,null);
220 MapInfo.Styles.CompositeStyle cs = new MapInfo.Styles.CompositeStyle(arst);
221 MapInfo.Data.Feature f = new Feature(fg,arst);
222
223 MapInfo.Data.Table table = MapInfo.Engine.Session.Current.Catalog.GetTable("temp_overview");
224 (table as ITableFeatureCollection).Clear();
225 table.InsertFeature(f);
226
227 m_overviewMapControl.Map.Layers["temp_overview"].Invalidate();
228 //table.Refresh();
229
230 }
231
232 private void omt_OverviewMapToolStop(object sender, OverviewMapToolEventArgs e)
233 {
234 DPoint dp1,dp2;
235 System.Drawing.Point[] points = e.Points;
236 m_overviewMapControl.Map.DisplayTransform.FromDisplay(points[0],out dp1);
237 m_overviewMapControl.Map.DisplayTransform.FromDisplay(points[1],out dp2);
238 // OverviewMapTool omt = (OverviewMapTool)this.MapControl2.MapTools[MapControl2.MapTools.Count-1];
239 // MapInfo.Geometry.DPoint dp1 = omt.Point1;
240 // MapInfo.Geometry.DPoint dp2 = omt.Point2;
241 // System.Drawing.Point p1,p2;
242
243 // MapControl2.Map.DisplayTransform.ToDisplay(dp1,out p1);
244 // MapControl2.Map.DisplayTransform.ToDisplay(dp2,out p2);
245 if(Math.Min(Math.Abs(points[0].X-points[1].X),Math.Abs(points[0].Y-points[1].Y))<5)
246 {
247 m_mainMapControl.Map.Center = dp1;
248 }
249 else
250 {
251 MapInfo.Geometry.DRect rect = new DRect(dp1,dp2);
252 m_mainMapControl.Map.SetView(rect,m_mainMapControl.Map.GetDisplayCoordSys());
253 }
254 }
255
256}
257
258
/* 作者:xiexiaokui2
* 时间:2005-10-183
* 功能:asp.net鹰眼4
*/5
using System;6
using MapInfo.Web.UI.WebControls;7
using MapInfo.Geometry;8
using MapInfo.Styles;9
using System.Drawing;10
using MapInfo.Data;11
12
/// <summary>13
/// OverviewTool 的摘要说明。14
/// </summary>15
public class OverviewMapToolEventArgs:System.EventArgs16
{17
System.Drawing.Point[] m_points;18
public OverviewMapToolEventArgs(System.Drawing.Point[] points)19
{20
this.m_points = points;21
}22
23
public System.Drawing.Point[] Points24
{25
get26
{27
return m_points;28
}29
set30
{31
m_points = value;32
}33
}34
35
}36
37
public delegate void OverviewMapToolEventHandler(object sender,OverviewMapToolEventArgs e);38
39
40
public class OverviewMapTool:MapTool41
{42
public static readonly string Toolname = "MapInfoWebOverview";43
// public DPoint Point1,Point2;44
45
string m_clientCodeSource;46
string m_clientStartMethod;47
string m_clientStopMethod;48
string m_cursorUrl;49
string m_name;50
51
52
public event OverviewMapToolEventHandler OverviewMapToolStop;53
54
protected void OnOverviewMapToolStop(OverviewMapToolEventArgs e)55
{56
if(this.OverviewMapToolStop != null)57
this.OverviewMapToolStop(this,e);58
}59
60
public OverviewMapTool()61
{62
this.ClientStartMethod = "MapInfoWebRectangleStart";63
this.ClientStopMethod = "MapInfoWebRectangleStop";64
this.Name = Toolname;65
}66
public override string ClientCodeSource67
{68
get69
{70
return m_clientCodeSource;71
}72
set73
{74
m_clientCodeSource = value;75
}76
}77
78
public override string ClientStartMethod79
{80
get81
{82
return m_clientStartMethod;83
}84
set85
{86
m_clientStartMethod = value;87
}88
}89
public override string ClientStopMethod90
{91
get92
{93
return m_clientStopMethod;94
}95
set96
{97
m_clientStopMethod = value;98
}99
}100
public override string CursorUrl101
{102
get103
{104
return m_cursorUrl;105
}106
set107
{108
m_cursorUrl = value;109
}110
}111
public override string Name112
{113
get114
{115
return m_name;116
}117
set118
{119
m_name = value;120
}121
}122
123
124
public override void Execute(string dataString, System.Collections.ArrayList selLayers, MapInfo.Mapping.Map map)125
{126
127
// DPoint dp1,dp2;128
System.Drawing.Point[] points = base.ExtractPoints(dataString);129
// map.DisplayTransform.FromDisplay(points[0],out dp1);130
// map.DisplayTransform.FromDisplay(points[1],out dp2);131
132
133
this.OnOverviewMapToolStop(new OverviewMapToolEventArgs(points));134
// OverviewMapTool omt = (OverviewMapTool)this.MapControl2.MapTools[MapControl2.MapTools.Count-1];135
// MapInfo.Geometry.DPoint dp1 = omt.Point1;136
// MapInfo.Geometry.DPoint dp2 = omt.Point2;137
// System.Drawing.Point p1,p2;138
139
// MapControl2.Map.DisplayTransform.ToDisplay(dp1,out p1);140
// MapControl2.Map.DisplayTransform.ToDisplay(dp2,out p2);141
// if(Math.Min(Math.Abs(points[0].X-points[1].X),Math.Abs(points[0].Y-points[1].Y))<5)142
// {143
// m_mainMapControl.Map.Center = dp1;144
// }145
// else146
// {147
// MapInfo.Geometry.DRect rect = new DRect(dp1,dp2);148
// m_mainMapControl.Map.SetView(rect,m_mainMapControl.Map.GetDisplayCoordSys()); 149
// }150
151
}152
153
154
}155
class Overview156
{157
158
MapInfo.Web.UI.WebControls.MapControl m_mainMapControl;159
MapInfo.Web.UI.WebControls.MapControl m_overviewMapControl;160
public Overview(MapInfo.Web.UI.WebControls.MapControl mainMapControl,MapInfo.Web.UI.WebControls.MapControl overviewMapControl)161
{162
MainMapControl = mainMapControl;163
OverviewMapControl = overviewMapControl;164
}165
166
public MapInfo.Web.UI.WebControls.MapControl MainMapControl167
{168
get169
{170
return m_mainMapControl;171
}172
set173
{174
m_mainMapControl = value;175
m_mainMapControl.PreRender += new EventHandler(MainMapControl_PreRender);176
}177
}178
public MapInfo.Web.UI.WebControls.MapControl OverviewMapControl179
{180
get181
{182
return m_overviewMapControl;183
}184
set185
{186
187
188
MapInfo.Data.Table table = MapInfo.Engine.Session.Current.Catalog.GetTable("temp_overview");189
m_overviewMapControl = value;190
OverviewMapTool omt = new OverviewMapTool();191
omt.OverviewMapToolStop += new OverviewMapToolEventHandler(omt_OverviewMapToolStop);192
this.m_overviewMapControl.MapTools.Add(omt);193
this.m_overviewMapControl.MapTools.CurrentTool = omt.Name;194
if(table == null)195
{196
197
198
this.m_overviewMapControl.Map.Load(new MapInfo.Mapping.MapTableLoader(m_mainMapControl.Map.Layers.GetTableEnumerator()));199
200
MapInfo.Data.TableInfo ti = MapInfo.Data.TableInfoFactory.CreateTemp("temp_overview");201
MapInfo.Data.TableSessionInfo tsi = new MapInfo.Data.TableSessionInfo();202
203
table = MapInfo.Engine.Session.Current.Catalog.CreateTable(ti);204
205
MapInfo.Mapping.FeatureLayer fl = new MapInfo.Mapping.FeatureLayer(table);206
m_overviewMapControl.Map.Layers.Insert(0,fl);207
}208
209
}210
}211
protected void MainMapControl_PreRender(object sender, EventArgs e)212
{213
214
DRect dr = this.m_mainMapControl.Map.Bounds;215
FeatureGeometry fg = new MapInfo.Geometry.Rectangle(m_mainMapControl.Map.GetDisplayCoordSys(),dr);216
MapInfo.Styles.SimpleLineStyle sls = new MapInfo.Styles.SimpleLineStyle(new LineWidth(1,LineWidthUnit.Pixel),2,Color.Red);217
MapInfo.Styles.SimpleInterior si = new MapInfo.Styles.SimpleInterior(1);218
MapInfo.Styles.AreaStyle arst = new MapInfo.Styles.AreaStyle(sls,si);219
// MapInfo.Styles.CompositeStyle cs = new MapInfo.Styles.CompositeStyle(arst,null,null,null);220
MapInfo.Styles.CompositeStyle cs = new MapInfo.Styles.CompositeStyle(arst);221
MapInfo.Data.Feature f = new Feature(fg,arst);222
223
MapInfo.Data.Table table = MapInfo.Engine.Session.Current.Catalog.GetTable("temp_overview");224
(table as ITableFeatureCollection).Clear();225
table.InsertFeature(f);226
227
m_overviewMapControl.Map.Layers["temp_overview"].Invalidate();228
//table.Refresh();229
230
}231
232
private void omt_OverviewMapToolStop(object sender, OverviewMapToolEventArgs e)233
{234
DPoint dp1,dp2;235
System.Drawing.Point[] points = e.Points;236
m_overviewMapControl.Map.DisplayTransform.FromDisplay(points[0],out dp1);237
m_overviewMapControl.Map.DisplayTransform.FromDisplay(points[1],out dp2);238
// OverviewMapTool omt = (OverviewMapTool)this.MapControl2.MapTools[MapControl2.MapTools.Count-1];239
// MapInfo.Geometry.DPoint dp1 = omt.Point1;240
// MapInfo.Geometry.DPoint dp2 = omt.Point2;241
// System.Drawing.Point p1,p2;242
243
// MapControl2.Map.DisplayTransform.ToDisplay(dp1,out p1);244
// MapControl2.Map.DisplayTransform.ToDisplay(dp2,out p2);245
if(Math.Min(Math.Abs(points[0].X-points[1].X),Math.Abs(points[0].Y-points[1].Y))<5)246
{247
m_mainMapControl.Map.Center = dp1;248
}249
else250
{251
MapInfo.Geometry.DRect rect = new DRect(dp1,dp2);252
m_mainMapControl.Map.SetView(rect,m_mainMapControl.Map.GetDisplayCoordSys()); 253
}254
}255
256
}257
258