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NAME
SoClipPlaneManip -
The SoClipPlaneManip class is used to manipulate clip planes.
SYNOPSIS
#include <Inventor/manips/SoClipPlaneManip.h>
Inherits SoClipPlane.
Public Member Functions
virtual SoType getTypeId (void) const
Returns the type identification of an object derived from a class inheriting SoBase.
This is used for run-time type checking and 'downward' casting.
SoClipPlaneManip (void)
SoDragger * getDragger (void)
void setValue (const SbBox3f &box, const SbVec3f &planenormal, float draggerscalefactor)
SbBool replaceNode (SoPath *p)
SbBool replaceManip (SoPath *p, SoClipPlane *newone) const
virtual void doAction (SoAction *action)
virtual void callback (SoCallbackAction *action)
virtual void GLRender (SoGLRenderAction *action)
virtual void getBoundingBox (SoGetBoundingBoxAction *action)
virtual void getMatrix (SoGetMatrixAction *action)
virtual void handleEvent (SoHandleEventAction *action)
virtual void pick (SoPickAction *action)
virtual void search (SoSearchAction *action)
virtual SoChildList * getChildren (void) const
Static Public Member Functions
static SoType getClassTypeId (void)
static void initClass (void)
Public Attributes
SoSFVec3f draggerPosition
Protected Member Functions
virtual const SoFieldData * getFieldData (void) const
virtual ~SoClipPlaneManip (void)
void setDragger (SoDragger *newdragger)
virtual void copyContents (const SoFieldContainer *fromfc, SbBool copyconnections)
Static Protected Member Functions
static const SoFieldData ** getFieldDataPtr (void)
static void valueChangedCB (void *f, SoDragger *d)
static void fieldSensorCB (void *f, SoSensor *d)
static void transferFieldValues (const SoClipPlane *from, SoClipPlane *to)
Protected Attributes
SoFieldSensor * planeFieldSensor
SoFieldSensor * onFieldSensor
SoFieldSensor * draggerPosFieldSensor
SoChildList * children
Additional Inherited Members
Detailed Description
The SoClipPlaneManip class is used to manipulate clip planes.
A manipulator is used by replacing the node you want to edit in the graph with the
manipulator. Draggers are used to manipulate the node. When manipulation is finished, the
node is put back into the graph, replacing the manipulator.
An SoJackDragger is used by instances of this manipulator class as the default dragger
when manipulating SoClipPlane nodes. See the documentation of SoJackDragger for details
about how to control the manipulator.
An 'action shot' of the SoClipPlaneManip:
This manipulator is an extension versus the original SGI Inventor v2.1 API. In addition to
being a Coin extension, it is also present in TGS' Inventor implementation (with the same
API).
Please note that this manipulator is a bit different than the other manipulators, since it
will not automatically scale and translate the dragger to surround the geometry. The
setValue() function must be used to initialize the manipulator/dragger. Below you'll find
some example code that loads an Inventor file and adds a clip plane manipulator.
#include <Inventor/Qt/SoQt.h>
#include <Inventor/Qt/viewers/SoQtExaminerViewer.h>
#include <Inventor/SoDB.h>
#include <Inventor/nodes/SoSeparator.h>
#include <Inventor/actions/SoGetBoundingBoxAction.h>
#include <Inventor/SoInput.h>
#include <Inventor/manips/SoClipPlaneManip.h>
#include <assert.h>
// *************************************************************************
int
main(int argc, char ** argv)
{
assert(argc >= 2);
QWidget * window = SoQt::init(argv[0]);
SoQtExaminerViewer * ex = new SoQtExaminerViewer( window );
ex->setBackgroundColor(SbColor(0.1f, 0.3f, 0.5f));
SoInput input;
SbBool ok = input.openFile(argv[1]);
if (!ok) {
fprintf(stderr,"Unable to open file.0);
return -1;
}
SoSeparator * root = SoDB::readAll(&input);
if (!root) {
fprintf(stderr,"Unable to read file.0);
return -1;
}
root->ref();
SoGetBoundingBoxAction ba(ex->getViewportRegion());
ba.apply(root);
SbBox3f box = ba.getBoundingBox();
SoClipPlaneManip * manip = new SoClipPlaneManip;
manip->setValue(box, SbVec3f(1.0f, 0.0f, 0.0f), 1.02f);
root->insertChild(manip, 0);
ex->setSceneGraph(root);
ex->show();
SoQt::show( window );
SoQt::mainLoop();
delete ex;
root->unref();
return 0;
}
Since:
TGS Inventor 2.5
Coin 1.0
Constructor & Destructor Documentation
SoClipPlaneManip::SoClipPlaneManip (void)
An SoJackDragger is set up here as the internal dragger used for manipulation of an
SoClipPlane node.
SoClipPlaneManip::~SoClipPlaneManip (void) [protected], [virtual]
Destructor.
Member Function Documentation
SoType SoClipPlaneManip::getTypeId (void) const [virtual]
Returns the type identification of an object derived from a class inheriting SoBase. This
is used for run-time type checking and 'downward' casting. Usage example:
void foo(SoNode * node)
{
if (node->getTypeId() == SoFile::getClassTypeId()) {
SoFile * filenode = (SoFile *)node; // safe downward cast, knows the type
}
}
For application programmers wanting to extend the library with new nodes, engines,
nodekits, draggers or others: this method needs to be overridden in all subclasses. This
is typically done as part of setting up the full type system for extension classes, which
is usually accomplished by using the pre-defined macros available through for instance
Inventor/nodes/SoSubNode.h (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes),
Inventor/engines/SoSubEngine.h (for engine classes) and so on.
For more information on writing Coin extensions, see the class documentation of the
toplevel superclasses for the various class groups.
Reimplemented from SoClipPlane.
const SoFieldData * SoClipPlaneManip::getFieldData (void) const [protected], [virtual]
Returns a pointer to the class-wide field data storage object for this instance. If no
fields are present, returns NULL.
Reimplemented from SoClipPlane.
SoDragger * SoClipPlaneManip::getDragger (void)
Returns pointer to dragger used for interaction.
void SoClipPlaneManip::setValue (const SbBox3f &box, const SbVec3f &planenormal,
floatdraggerscalefactor)
Sets the clip plane based on the center of box and normal. The size of box is used as a
scale factor to the dragger, multiplied with draggerscalefactor.
SbBool SoClipPlaneManip::replaceNode (SoPath *path)
Replaces the node specified by path with this manipulator. The manipulator will copy the
field data from the node, to make it affect the state in the same way as the node.
SbBool SoClipPlaneManip::replaceManip (SoPath *path, SoClipPlane *newone) const
Replaces this manipulator from the position specified by path with newnode. If newnode is
NULL, an SoClipPlane will be created for you.
void SoClipPlaneManip::doAction (SoAction *action) [virtual]
This function performs the typical operation of a node for any action.
Reimplemented from SoClipPlane.
void SoClipPlaneManip::callback (SoCallbackAction *action) [virtual]
Action method for SoCallbackAction.
Simply updates the state according to how the node behaves for the render action, so the
application programmer can use the SoCallbackAction for extracting information about the
scene graph.
Reimplemented from SoClipPlane.
void SoClipPlaneManip::GLRender (SoGLRenderAction *action) [virtual]
Action method for the SoGLRenderAction.
This is called during rendering traversals. Nodes influencing the rendering state in any
way or who wants to throw geometry primitives at OpenGL overrides this method.
Reimplemented from SoClipPlane.
void SoClipPlaneManip::getBoundingBox (SoGetBoundingBoxAction *action) [virtual]
Action method for the SoGetBoundingBoxAction.
Calculates bounding box and center coordinates for node and modifies the values of the
action to encompass the bounding box for this node and to shift the center point for the
scene more towards the one for this node.
Nodes influencing how geometry nodes calculates their bounding box also overrides this
method to change the relevant state variables.
Reimplemented from SoNode.
void SoClipPlaneManip::getMatrix (SoGetMatrixAction *action) [virtual]
Action method for SoGetMatrixAction.
Updates action by accumulating with the transformation matrix of this node (if any).
Reimplemented from SoNode.
void SoClipPlaneManip::handleEvent (SoHandleEventAction *action) [virtual]
Action method for SoHandleEventAction.
Inspects the event data from action, and processes it if it is something which this node
should react to.
Nodes influencing relevant state variables for how event handling is done also overrides
this method.
Reimplemented from SoNode.
void SoClipPlaneManip::pick (SoPickAction *action) [virtual]
Action method for SoPickAction.
Does common processing for SoPickAction action instances.
Reimplemented from SoClipPlane.
void SoClipPlaneManip::search (SoSearchAction *action) [virtual]
Action method for SoSearchAction.
Compares the search criteria from the action to see if this node is a match. Searching is
done by matching up all criteria set up in the SoSearchAction -- if any of the requested
criteria is a miss, the search is not deemed successful for the node.
See Also:
SoSearchAction
Reimplemented from SoNode.
SoChildList * SoClipPlaneManip::getChildren (void) const [virtual]
Returns the children of this node.
Reimplemented from SoNode.
void SoClipPlaneManip::setDragger (SoDragger *newdragger) [protected]
Sets a dragger to use for this manipulator. The default dragger is an SoJackDragger.
void SoClipPlaneManip::copyContents (const SoFieldContainer *from, SbBoolcopyconnections)
[protected], [virtual]
Makes a deep copy of all data of from into this instance, except external scenegraph
references if copyconnections is FALSE.
This is the method that should be overridden by extension node / engine / dragger /
whatever subclasses which needs to account for internal data that are not handled
automatically.
For copying nodes from application code, you should not invoke this function directly, but
rather call the SoNode::copy() function:
SoNode * mynewnode = templatenode->copy();
The same also goes for engines.
Make sure that when you override the copyContents() method in your extension class that
you also make it call upwards to it's parent superclass in the inheritance hierarchy, as
copyContents() in for instance SoNode and SoFieldContainer does important work. It should
go something like this:
void
MyCoinExtensionNode::copyContents(const SoFieldContainer * from,
SbBool copyconnections)
{
// let parent superclasses do their thing (copy fields, copy
// instance name, etc etc)
SoNode::copyContents(from, copyconnections);
// [..then copy internal data..]
}
Reimplemented from SoNode.
void SoClipPlaneManip::valueChangedCB (void *m, SoDragger *dragger) [static], [protected]
This API member is considered internal to the library, as it is not likely to be of
interest to the application programmer. Called whenever dragger is touched.
void SoClipPlaneManip::fieldSensorCB (void *m, SoSensor *s) [static], [protected]
This API member is considered internal to the library, as it is not likely to be of
interest to the application programmer. Called whenever one of the fields changes value.
void SoClipPlaneManip::transferFieldValues (const SoClipPlane *from, SoClipPlane *to)
[static], [protected]
Copies field values from one clip plane node to another.
Member Data Documentation
SoSFVec3f * SoClipPlaneManip::draggerPosition
This API member is considered internal to the library, as it is not likely to be of
interest to the application programmer.
SoFieldSensor * SoClipPlaneManip::planeFieldSensor [protected]
This API member is considered internal to the library, as it is not likely to be of
interest to the application programmer.
SoFieldSensor * SoClipPlaneManip::onFieldSensor [protected]
This API member is considered internal to the library, as it is not likely to be of
interest to the application programmer.
SoFieldSensor * SoClipPlaneManip::draggerPosFieldSensor [protected]
This API member is considered internal to the library, as it is not likely to be of
interest to the application programmer.
SoChildList * SoClipPlaneManip::children [protected]
This API member is considered internal to the library, as it is not likely to be of
interest to the application programmer.
Author
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