矢量數(shù)據(jù)編輯與管理

矢量數(shù)據(jù)編輯與1功能:

–1.交互式數(shù)據(jù)錄入(鼠標)

–2.外部文件導(dǎo)入導(dǎo)出(Shape)

–3.利用PostGIS管理數(shù)據(jù)

–4.圖形的基本顯示功能(漫游、縮放)

–5.鼠標交互的地物選擇(點選擇、框選擇)

–6.符號及屬性管理開發(fā)語言：C++開發(fā)環(huán)境：VisualStudio20052PostGIS集成在PostgreSQL中，本次實習PostGIS管理數(shù)據(jù)（shapefile）,libpq/libpq++庫提供了C++應(yīng)用程序在PostgreSQL的后端接口，通過這些接口在PostGIS數(shù)據(jù)庫中讀取數(shù)據(jù)。3classCGeometry{public: GeometryTypem_geometryType;//幾何圖形類型 intm_LineType;//線型 intm_LineWidth;//線寬 intm_PenColor;//畫筆顏色 intm_BrushType;//畫刷類型 intm_BrushColor;//畫刷顏色 boolm_bSelect;//是否處于選中狀態(tài) intm_layerIndex;//圖層索引

EnumGeometryType{GeoNone,GeoPoint,GeoPolyline,GeoSimplePolygon,GeoMultiPoint,GeoMultiPolyline,GeoMultiPolygon };structDbPoint{doubleX;doubleY;};4public: CGeometry(constCGeometry&geometry);//復(fù)制構(gòu)造函數(shù) CGeometry(intlineType,intlineWidth,intpenColor,intBrushType,intBrushColor);//帶參數(shù)的構(gòu)造函數(shù) GeometryTypegetType();//獲得幾何圖形的類型

//以下函數(shù)都設(shè)為虛函數(shù)，需在不同類型幾何圖形類中重載 virtualvoidDraw(CDC*pDC);//繪制幾何圖形 virtualvoidMove(doublex,doubley);//平移（漫游） virtualvoidZoom(doublescale);//縮放

//以下函數(shù)用于圖形選擇實現(xiàn) doubleCalDistance(DbPointpoint1,DbPointpoint2);//兩點間的距離 doublePoint2Line(DbPointpt,DbPointpoint1,DbPointpoint2);//點到直線的距離 boolPointRgn(DbPointpt,vector<DbPoint>points,doubleblc);//判斷點是否在區(qū)域內(nèi) virtualvoidGetRect(CRect&rect);//得到圖形元素的邊界矩形 virtualboolIsPoint(DbPointpt,doublelimit,doubleblc);//判斷是否點選選擇了圖形元素 virtualboolIsInRgn(vector<DbPoint>points,doubleblc);//判斷圖形元素是否在多邊形區(qū)域內(nèi)};5classCGeoPoint:publicCGeometry{protected: DbPointm_point;public:

CGeoPoint(constCGeoPoint&point); CGeoPoint(intlineType,intlineWidth,intpenColor,intBrushType,intBrushColor,DbPointpoint);

doublegetX();

doublegetY(); DbPointgetPoint();

voidsetX(doublex);

voidsetY(doubley); voidsetPoint(DbPointpoint); virtualvoidDraw(CDC*pDC); virtualvoidMove(doublex,doubley); virtualvoidZoom(doublescale); virtualboolIsPoint(DbPointpt,doublelimit,doubleblc);//判斷是否點選選擇了圖形元素 virtualboolIsInRgn(vector<DbPoint>points,doubleblc);//判斷圖形元素是否在多邊形區(qū)域內(nèi)};6classCGeoPolyLine:publicCGeometry{protected: vector<DbPoint>m_pointsArray;public:

CGeoPolyLine(constCGeoPolyLine&polyline); CGeoPolyLine(intlineType,intlineWidth,intpenColor,intBrushType,intBrushColor,vector<DbPoint>pointsArray); vector<DbPoint>getPoints(); voidsetPoints(vector<DbPoint>pointsArray); virtualvoidDraw(CDC*pDC); virtualvoidMove(doublex,doubley); virtualvoidZoom(doublescale); virtualvoidGetRect(CRect&rect);//得到圖形元素的邊界矩形 virtualboolIsPoint(DbPointpt,doublelimit,doubleblc);//判斷是否點選選擇了圖形元素 virtualboolIsInRgn(vector<DbPoint>points,doubleblc);//判斷圖形元素是否在多邊形區(qū)域內(nèi)};7classCGeoSimplePolygon:publicCGeometry{protected: vector<DbPoint>m_pointsArray; doublem_Area;public:

CGeoSimplePolygon(constCGeoSimplePolygon&simplePolygon); CGeoSimplePolygon(intlineType,intlineWidth,intpenColor,intBrushType,intBrushColor,vector<DbPoint>pointsArray); vector<DbPoint>getPoints(); voidsetPoints(vector<DbPoint>pointsArray); doublegetArea(); voidCalArea(); virtualvoidDraw(CDC*pDC); virtualvoidMove(doublex,doubley); virtualvoidZoom(doublescale); virtualvoidGetRect(CRect&rect);//得到圖形元素的邊界矩形 virtualboolIsPoint(DbPointpt,doublelimit,doubleblc);//判斷是否點選選擇了圖形元素 virtualboolIsInRgn(vector<DbPoint>points,doubleblc);//判斷圖形元素是否在多邊形區(qū)域內(nèi)};8classCGeoLayer{//屬性private: GeometryTypem_layerType; CStringm_layerName; intm_layerIndex; boolm_isVisible; vector<CGeometry*>m_Geometrys;public://構(gòu)造函數(shù) CGeoLayer(constCGeoLayer&layer); CGeoLayer(GeometryTypelayerType,CStringlayerName,intlayerIndex,boolisVisible,vector<CGeometry*>geometrys);//基本方法 GeometryTypeGetLayerType(); voidSetLayerName(CStringname); CStringGetLayerName();

9public: voidSetLayerIndex(intindex); intGetLayerIndex(); voidSetVisible(boolisVisible); boolGetVisible(); voidAddGeometry(CGeomet