FGFS-4.1/OpenSceneGraph
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Added setProjectionMatrix*(), setViewMatrix*() and get*() methods to osgUtil::SceneView.

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This commit is contained in:
Robert Osfield
2003-07-16 22:15:28 +00:00
parent a4b29996fd
commit 2a142c096a
4 changed files with 129 additions and 3 deletions
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2
include/osg/Matrix
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@@ -127,7 +127,7 @@ class SG_EXPORT Matrix
double zNear, double zFar);
/** Get the frustum setting of a perspective projection matrix.
* Note, if matrix is not an orthographic matrix then invalid values will be returned.*/
* Note, if matrix is not an perspective matrix then invalid values will be returned.*/
void getFrustum(double& left, double& right,
double& bottom, double& top,
double& zNear, double& zFar);

44
include/osgUtil/SceneView
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@@ -128,8 +128,28 @@ class OSGUTIL_EXPORT SceneView : public osg::Referenced
const osg::State* getState() const { return _state.get(); }
/** Set the projection matrix. Can be thought of as setting the lens of a camera. */
void setProjectionMatrix(const osg::Matrix& matrix) { _projectionMatrix = new osg::RefMatrix(matrix); }
void setProjectionMatrix(const osg::Matrix& matrix);
/** Set to a orthographic projection. See OpenGL glOrtho for documentation further details.*/
void setProjectionMatrixAsOrtho(double left, double right,
double bottom, double top,
double zNear, double zFar);
/** Set to a 2D orthographic projection. See OpenGL glOrtho2D documentation for further details.*/
void setProjectionMatrixAsOrtho2D(double left, double right,
double bottom, double top);
/** Set to a perspective projection. See OpenGL glFrustum documentation for further details.*/
void setProjectionMatrixAsFrustum(double left, double right,
double bottom, double top,
double zNear, double zFar);
/** Create a symmetrical perspective projection, See OpenGL gluPerspective documentation for further details.
* Aspect ratio is defined as width/height.*/
void setProjectionMatrixAsPerspective(double fovy,double aspectRatio,
double zNear, double zFar);
/** Get the projection matrix.*/
osg::Matrix& getProjectionMatrix() { return *_projectionMatrix; }
@@ -137,8 +157,24 @@ class OSGUTIL_EXPORT SceneView : public osg::Referenced
/** Get the const projection matrix.*/
const osg::Matrix& getProjectionMatrix() const { return *_projectionMatrix; }
/** Get the othorgraphic settings of the orthographic projection matrix.
* Note, if matrix is not an orthographic matrix then invalid values will be returned.*/
void getProjectionMatrixAsOrtho(double& left, double& right,
double& bottom, double& top,
double& zNear, double& zFar);
/** Get the frustum setting of a perspective projection matrix.
* Note, if matrix is not an perspective matrix then invalid values will be returned.*/
void getProjectionMatrixAsFrustum(double& left, double& right,
double& bottom, double& top,
double& zNear, double& zFar);
/** Set the view matrix. Can be thought of as setting the position of the world relative to the camera in camera coordinates. */
void setViewMatrix(const osg::Matrix& matrix) { _viewMatrix = new osg::RefMatrix(matrix); }
void setViewMatrix(const osg::Matrix& matrix);
/** Set to the position and orientation of view matrix, using the same convention as gluLookAt. */
void setViewMatrixAsLookAt(const osg::Vec3& eye,const osg::Vec3& center,const osg::Vec3& up);
/** Get the view matrix. */
osg::Matrix& getViewMatrix() { return *_viewMatrix; }
@@ -146,6 +182,10 @@ class OSGUTIL_EXPORT SceneView : public osg::Referenced
/** Get the const view matrix. */
const osg::Matrix& getViewMatrix() const { return *_viewMatrix; }
/** Get to the position and orientation of a modelview matrix, using the same convention as gluLookAt. */
void getViewMatrixAsLookAt(osg::Vec3& eye,osg::Vec3& center,osg::Vec3& up,float lookDistance=1.0f);
void setInitVisitor(osg::NodeVisitor* av) { _initVisitor = av; }
osg::NodeVisitor* getInitVisitor() { return _initVisitor.get(); }