精细农业实习报告

1、目 录1 实现基础12 实习目的13 系统总体设计13.1 设计思路13.2 主要实现功能24 实现过程24.1 地图加载、保存24.2 地图地图放大、缩小34.3 数据查询与选择34.4 绘制地图45 功能实现的代码66 总结与体会13参 考 文 献141 实现基础1 arcgis engine 9.3开发平台2 visual studio.net3 c#语言2 实习目的 本次实习题目为空间数据读取与显示功能实现，旨在对上学期学习过的arcgis engine开发的进一步深化与理解。本次实习的总体思路为：在对arcgis engine体系结构以及arcgis engine的类库了解的基础上，

2、在vs中使用arcgis engine的控件等的实际运用于操作进行进一步的强化，将理论知识运用与实践。3 系统总体设计3.1 设计思路1 启动visual studio.net，从“新建项目”对话框中创建一个新的visual c# “windows 应用程序”项目；2 将项目命名为“myproject”，并选择“位置”保存该项目；3 在“工具箱”空白处单击鼠标右键，在弹出的快捷菜单中选择“添加选项卡”，人后在新增选项卡上输入“esri”作为选项卡标签；4 在“工具箱”的“esri”标签上单击鼠标右键，在弹出的“选择工具箱项”对话框选择“.net framework 组件”选项卡，选中“axma

3、pcontrol”、“axpagelayoutcontrol”、“axtoccontrol”和“axtoolbarcontrol”等复选框，单击“确定”按钮，将所选择的控件添加到工具栏上；5 在“项目”菜单中选择“添加引用”，在弹出的“添加引用”对话框中，双击“esri.arcgis.carto”、“esri.arcgis.display”、“esri.arcgis.geometry”、“esri.arcgis.system”、“esri.arcgis.systemui”和“esri.arcgis.utility”等选项，单击“确定”按钮；6 打开.net窗体，双击“工具箱”中“esri”标签

4、栏中的axmapcontrol控件，将mapcontrol加入到窗体上，再将axtoolbarcontrol也添加到窗体上；7 在窗体上双击显示窗体代码窗口，加载图层到mapcontrol中，在form_load事件中添加地图文档加载代码；8 设置toolbarcontrol.与mapcontrol控件关联；9 在做好基本界面以后在此基础上加以相应的功能并予以实现。3.2 主要实现功能1 地图加载、保存；2 图层操作（放大、缩小、漫游、全图）；3 数据查询与选择；4 绘制图形；4 实现过程4.1 地图加载、保存1 在vs中创建一个windows应用程序项目，命名为myproject，开发语言选

5、择c#。在左边的工具箱中选择“licensecontrol”控件，拖放到默认的“form1”窗体上，用同样的方法在窗体上添加“mapcontrol1”、“mapcontrol2”和toccontrol，以及一个按钮控件“button1”，将按钮控件文本修改后如下图：图1 框图图2 地图加载4.2 地图地图放大、缩小2 在窗体上放置2个按钮控件“button7”、“button8”，修改控件的文本后如下图：图3 放大图4 缩小4.3 数据查询与选择3 在窗体上放置5个按钮控件“button2”、“button3”、“button4”、“button5”、“button6”，修改控件的文本如下图：

6、图5 点选图6 圆选4.4 绘制地图4 在窗体上放置4个按钮控件“button9”、“button10”、“button11”、“button12”，修改控件的文本如下图：图7 画圆对象图8 画矩形对象图9 画多边形对象5 功能实现的代码namespace myproject public partial class form1 : form public form1() initializecomponent(); private void form1_load(object sender, eventargs e) loadmapdocument(); private void butto

7、n1_click(object sender, eventargs e) loadmapdocument(); private void loadmapdocument() system.windows.forms.openfiledialog openfiledialog; openfiledialog = new openfiledialog(); openfiledialog.title = 打开地图文档; openfiledialog.filter = map documents(*.mxd)|*.mxd; openfiledialog.showdialog(); string fil

8、epath = openfiledialog.filename; if (axmapcontrol1.checkmxfile(filepath) axmapcontrol1.mousepointer = esricontrolsmousepointer.esripointerhourglass;axmapcontrol1.loadmxfile(filepath, 0, type.missing);axmapcontrol1.mousepointer = esricontrolsmousepointer.esripointerdefault; private void loadeagleeyed

9、ocument() system.windows.forms.openfiledialog openfiledialog; openfiledialog = new openfiledialog(); openfiledialog.title = 打开鹰眼地图文档; openfiledialog.filter = map documents(*.mxd)|*.mxd; openfiledialog.showdialog(); string filepath = openfiledialog.filename; if (axmapcontrol2.checkmxfile(filepath) ax

10、mapcontrol2.mousepointer = esricontrolsmousepointer.esripointerhourglass;axmapcontrol2.loadmxfile(filepath, 0, type.missing);axmapcontrol2.mousepointer = esricontrolsmousepointer.esripointerdefault; private void axmapcontrol1_onmapreplaced(object sender, esri.arcgis.controls.imapcontrolevents2_onmap

11、replacedevent e) loadeagleeyedocument(); private void axmapcontrol1_onmousedown(object sender, imapcontrolevents2_onmousedownevent e) axmapcontrol1.mousepointer = esricontrolsmousepointer.esripointercrosshair; igeometry geometry = null; switch (flag) case 2:esri.arcgis.geometry.point point = new esr

12、i.arcgis.geometry.pointclass();point.x = e.mapx; point.y = e.mapy; geometry = point as igeometry; break; case 3: geometry = axmapcontrol1.trackcircle(); break; case 4: geometry = axmapcontrol1.trackrectangle(); break; case 5: geometry = axmapcontrol1.trackpolygon(); break; esri.arcgis.geometry.ienve

13、lope ipenv; if (flag = 7) ipenv = axmapcontrol1.trackrectangle(); axmapcontrol1.extent = ipenv; else if (flag = 8) /ipenv = axmapcontrol1.trackrectangle(); ipenv = axmapcontrol1.extent; ipenv.expand(2, 2, true); axmapcontrol1.extent = ipenv; else if (flag = 9) geometry = axmapcontrol1.trackcircle();

14、 else if (flag = 10) geometry = axmapcontrol1.trackrectangle(); else if (flag = 11) geometry = axmapcontrol1.trackpolygon(); else if (flag = 12) ipoint point = new pointclass(); point.x = e.x; point.y = e.y; geometry = point as igeometry; axmapcontrol1.map.selectbyshape(geometry, null, false);axmapc

15、ontrol1.refresh(esriviewdrawphase.esriviewgeoselection, null, null); private void axmapcontrol1_onextentupdated(object sender, imapcontrolevents2_onextentupdatedevent e) ienvelope envelope = (ienvelope)e.newenvelope; igraphicscontainer graphicscontainer = axmapcontrol2.map as igraphicscontainer; iac

16、tiveview activeview = graphicscontainer as iactiveview; graphicscontainer.deleteallelements (); ielement element = new rectangleelementclass(); element.geometry = envelope ; ilinesymbol outlinesymbol = new simplelinesymbolclass(); outlinesymbol.width = 2; outlinesymbol.color = getcolor(255, 0, 0, 25

17、5); ifillsymbol fillsymbol = new simplefillsymbolclass(); fillsymbol.color = getcolor(9, 0, 0, 0); fillsymbol.outline = outlinesymbol ; ifillshapeelement fillshapeelement = element as ifillshapeelement; fillshapeelement.symbol = fillsymbol; graphicscontainer.addelement(ielement)fillshapeelement , 0)

18、; activeview.partialrefresh(esriviewdrawphase.esriviewgraphics, null, null); private irgbcolor getcolor(int r, int g, int b, int t) irgbcolor rgbcolor = new rgbcolorclass(); rgbcolor.red = r; rgbcolor.green = g; rgbcolor.blue = b; rgbcolor.transparency = (byte)t; return rgbcolor; private void axmapc

19、ontrol2_onmousedown_1(object sender, imapcontrolevents2_onmousedownevent e) ipoint point = new pointclass(); point.putcoords(e.mapx, e.mapy); axmapcontrol1.centerat(point); int flag = 0; private void button2_click(object sender, eventargs e) flag = 2; private void button3_click(object sender, eventa

20、rgs e) flag = 3; private void button4_click(object sender, eventargs e) flag = 4; private void button5_click(object sender, eventargs e) flag = 5; private void button6_click(object sender, eventargs e) iactiveview pactiveview = (iactiveview)(axmapcontrol1.map); pactiveview.partialrefresh(esriviewdra

21、wphase.esriviewgeoselection, axmapcontrol1.get_layer(0), null); axmapcontrol1.map.clearselection(); pactiveview.partialrefresh(esriviewdrawphase.esriviewgeoselection, axmapcontrol1.get_layer(0), null); private void button7_click(object sender, eventargs e) axmapcontrol1.mousepointer = esricontrolsmo

22、usepointer.esripointerzoomin; flag = 7; private void button8_click(object sender, eventargs e) axmapcontrol1.mousepointer = esricontrolsmousepointer.esripointerzoomout; flag =8; private void button9_click(object sender, eventargs e) flag = 9; private void button10_click(object sender, eventargs e) f

23、lag = 10; private void button11_click(object sender, eventargs e) flag = 11; private void button12_click(object sender, eventargs e) flag = 12; private void drawmaptext(igeometry geometry) irgbcolor color = new rgbcolorclass(); color.red = 255; color.blue = 0; color.green = 0; itextsymbol txtsystem = new textsymbolclass(); txtsystem.color = color; /txtsystem.text = 测试drawtext; object symbol = txtsystem; axmapcontrol1.drawtext(geometry, 测试drawtext, ref symbol); private void drawmapshape(igeometry pgeom) irgbcolor pcolor; pcolor = new rgbcolorclass();