#ifndef _HUTILITY_H #define _HUTILITY_H #include #include #include #include "Assist/SceneGraphDef.h" namespace OSGView { //窗口尺寸变化回调 class XJWindowReSizeCallBack : public osgGA::GUIEventHandler { public: XJWindowReSizeCallBack() {} ~XJWindowReSizeCallBack() {} virtual bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa, osg::Object* node, osg::NodeVisitor* nv) { osgViewer::Viewer* viewer = dynamic_cast(&aa); if (!viewer) return false; if(ea.getEventType() == osgGA::GUIEventAdapter::RESIZE) { const osg::GraphicsContext::Traits* trait = viewer->getCamera()->getGraphicsContext()->getTraits(); osg::Camera* camera = dynamic_cast(node); if(camera) { camera->setProjectionMatrixAsOrtho2D(0, trait->width, 0, trait->height); camera->setViewport(0, 0, trait->width, trait->height); viewer->requestRedraw(); } } return false; } }; //节点查找访问器 /***************************************/ class FindNodeVisitor : public osg::NodeVisitor { public: //构造函数，参数为需要查找的节点名 FindNodeVisitor(const std::string& searchName); //重载apply()方法 virtual void apply(osg::Node& node); virtual void apply(osg::Geode& geode); virtual void apply(osg::Transform& transform); virtual void apply(osg::Camera& camera); virtual void apply(osg::Group& group); //设置要查找的节点名 void setNameToFind(const std::string& searchName); //得到查找节点向量的第一个节点 osg::Node* getFirst() ; //定义一个节点向量 typedef std::vector NodeList; //得到查找节点向量 NodeList& getNodeList() { return foundNodeList; } private: //节点名 std::string searchForName; //用来保存查找的节点 NodeList foundNodeList; }; class HUtility { public: HUtility() {} ~HUtility() {} static int getProjectionViewVoulme(osg::Camera* cam, double& l, double& r, double& b, double& t, double& nz, double& fz); /*! InsertRectangle inserts a 2d rectangle as a osg Polyline. \param seg The segment name into which the rectangle should be inserted. \param x0 X-value of vertex 1 of the rectangle. \param y0 Y-value of vertex 1 of the rectangle. \param x1 X-value of vertex 3 of the rectangle. \param y1 Y-value of vertex 3 of the rectangle. \param z The z coordinate shared by vertext 1 and 3. \param fill Pass true to create a filled rectangle. \return The key to the new created rectangle. */ static osg::Node* InsertRectangle(float x0, float y0, float x1, float y1, float z = 0.0f, bool fill = false, osg::Vec4 color = White_Color, float size = 2.0); /*! InsertLine inserts a line as a osg line. \param firstPt the start pt of line \param lastPt the end pt of line \color, the color attribute of line */ static osg::Node* InsertPoint(const osg::Vec3& pt, osg::Vec4 color = Red_Color, float pointsize = 1.0f); /*! InsertSphere inserts a sphere as a osg sphere. \param firstPt the start pt of line \param lastPt the end pt of line \color, the color attribute of line */ static osg::Node* InsertSphere(const osg::Vec3& center, float rad = 1.0, osg::Vec4 color = Red_Color); /*! InsertLine inserts a line as a osg line. \param firstPt the start pt of line \param lastPt the end pt of line \color, the color attribute of line */ static osg::Node* InsertLine(const osg::Vec3& firstPt, const osg::Vec3& lastPt, osg::Vec4 color = White_Color); /*! InsertLineDrawable inserts a line Drawable as a osg line. \param firstPt the start pt of line \param lastPt the end pt of line \color, the color attribute of line */ static osg::Drawable* InsertLineDrawable(const osg::Vec3& firstPt, const osg::Vec3& lastPt, osg::Vec4 color = White_Color, float lineWidth = 1.0); /*! InserDashLineDrawable inserts a dash line Drawable as a osg line. \param firstPt the start pt of line \param lastPt the end pt of line \color, the color attribute of line */ static osg::Drawable* InserDashLineDrawable(const osg::Vec3& firstPt, const osg::Vec3& lastPt, osg::Vec4 color = White_Color, const char* name = NULL); static osg::Drawable* InsertPolylineDrawable(std::vector& polylines, osg::Vec4 color = White_Color, const char* name = NULL); /*! InsertPlane inserts a plane geode. */ static osg::Geode* InsertPlane(); /*! InsertText inserts a line Drawable as a osg line. */ static osg::Drawable* InsertText(const osg::Vec3& position, std::string charText, float textSize = 1.0); static osg::Drawable* InsertText(const osg::Vec3& position, wchar_t* charText, float textSize /* = 1.0 */); /*! InsertArrow inserts a line Drawable as a osg line. */ static osg::Drawable* InsertArrow(float arrowSize = 1.0f, float lenght = 2.0); static osg::Node* InsertArrow(const osg::Vec3& pnt, const osg::Vec3& nor); //Insert point static osg::Drawable* InsertPointDrawable(const osg::Vec3& pt, osg::Vec4 color = Red_Color, float pointsize = 1.0f); //insert circle int the origin of world coordinate static osg::Drawable* InsertCircle(float radius, unsigned int numSegments, float w, const osg::Vec4& color); static osg::Geode* InsertAxis(float size); /*! InsertPolyline inserts a line as a osg line. */ static osg::Node* InsertPolyline(std::vector& polylines, int state = 0 ); /*! InsertPolyline inserts a line as a osg line. */ static osg::Node* InsertPolyline(int num, osg::Vec3* polylines); /*! InsertPolyline inserts a line as a osg line. */ static osg::Node* InsertPointSet(std::vector& pointSet, osg::Vec4 color = Red_Color, float pointSize = 10.0); /*! Project the points form window into world space */ static void ConvertCoordinate(osgViewer::Viewer* pView, const char* inChar, const osg::Vec3& inPosition,const char* outChar, osg::Vec3& outPosition); // static void AdjustPositionToPlane(osgViewer::Viewer* pView, osg::Vec3& pos, const osg::Vec3& plane_point); //compute project point on plane static void ProjectPointOnPlane(osg::Vec3 plane_dir, const osg::Vec3& plane_point, osg::Vec3& projectPoint); //compute the intersection between line and plane static void IntersectionSegmentPlane(const osg::Vec3& plane_dir, const osg::Vec3& plane_point, const osg::Vec3& line_dir, const osg::Vec3& line_point, osg::Vec3& intersection) ; /*! FindWindowSpaceCamera inserts Or get a 2d Camera which Orientate Z Axis. \param seg The segment name into which the rectangle should be inserted. \param x0 X-value of vertex 1 of the rectangle. \return The node of the camera finded. */ static osg::Camera* FindWindowSpaceCamera(osgViewer::Viewer* aView); /*! FindNodeInSceneGraph get a group has a name. \param seg The segment name of Group. \param . \return The group which user need. */ static osg::Group* GetGroupInSceneGraph(const char* name, osgViewer::Viewer* aView); /*! FindNodeInSceneGraph get a group has a name. \param seg The segment name of Group. \param . \return The group which user need. */ static osg::Group* GetGroupByName(const char* name, osg::Group* pGroup); /*! FindNodeByName get a group has a name. \param seg The segment name of Group. \param . \return The group which user need. */ static osg::Node* FindNodeByName(const char* name, osg::Group* pGroup); /*! RemoveNodeByName remove a node with name from pGroup. \param seg The segment name of node. \param . \ return true for success. If Node is not found then return false */ static bool RemoveNodeByName(const char* name, osg::Group* pGroup); /*! RemoveAllChildren remove all children from pGroup. */ static bool RemoveAllChildren(osg::Group* pGroup); /*! RemoveDrawable remove the drawable from geode. */ static bool RemoveDrawable(const char* name, osg::Geode* pGeode); /*! GetDrawable get the drawable from geode. */ static osg::Drawable* GetDrawable(const char* name, osg::Geode* pGeode); static bool MakeRotationByAxes(const osg::Vec3& xdir, const osg::Vec3& ydir, const osg::Vec3& zdir, osg::Vec3& rotateAxis, double& angle,const char* priorityOrder = "ZXY"); }; } //end namespace #endif