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