#include <Inventor/SoDB.h>
Static Public Methods | |
void | init (void) |
const char * | getVersion (void) |
SbBool | read (SoInput *in, SoPath *&path) |
SbBool | read (SoInput *in, SoBase *&base) |
SbBool | read (SoInput *in, SoNode *&rootnode) |
SoSeparator * | readAll (SoInput *in) |
SbBool | isValidHeader (const char *teststring) |
SbBool | registerHeader (const SbString &headerstring, SbBool isbinary, float ivversion, SoDBHeaderCB *precallback, SoDBHeaderCB *postcallback, void *userdata=NULL) |
SbBool | getHeaderData (const SbString &headerstring, SbBool &isbinary, float &ivversion, SoDBHeaderCB *&precallback, SoDBHeaderCB *&postcallback, void *&userdata, SbBool substringok=FALSE) |
int | getNumHeaders (void) |
SbString | getHeaderString (const int i) |
SoField * | createGlobalField (const SbName &name, SoType type) |
SoField * | getGlobalField (const SbName &name) |
void | renameGlobalField (const SbName &from, const SbName &to) |
void | setRealTimeInterval (const SbTime &interval) |
const SbTime & | getRealTimeInterval (void) |
void | enableRealTimeSensor (SbBool on) |
SoSensorManager * | getSensorManager (void) |
void | setDelaySensorTimeout (const SbTime &t) |
const SbTime & | getDelaySensorTimeout (void) |
int | doSelect (int nfds, void *readfds, void *writefds, void *exceptfds, struct timeval *usertimeout) |
void | addConverter (SoType from, SoType to, SoType converter) |
SoType | getConverter (SoType from, SoType to) |
SbBool | isInitialized (void) |
void | startNotify (void) |
SbBool | isNotifying (void) |
void | endNotify (void) |
This class collects various methods for initializing, setting and accessing common global data from the Coin library.
All methods on SoDB are static.
Make sure you call SoDB::init() (either directly or indirectly through the init() method of the GUI glue library) before you use any of the other Coin classes.
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Initialize the Coin system. This needs to be done as the first thing before you start using the library, or you'll probably see an early crash. |
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Returns a text string containing the name of the library and version information. |
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Instantiates and reads an SoPath object from in and returns a pointer to it in path. The reference count of the SoPath object will initially be zero.
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Instantiates and reads an object of type SoBase from in and returns a pointer to it in base. base will be The reference count of the base object will initially be zero.
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Instantiates and reads an object of type SoNode from in and returns a pointer to it in rootnode. The reference count of the node will initially be zero.
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Reads all graphs from in and returns them under an SoSeparator node. If the file contains only a single graph under an SoSeparator node (which is the most common way of constructing and exporting scene graphs), no extra SoSeparator root node will be made, but the returned root node will be the top-most node from the file. The reference count of the root separator returned from this method will be zero. Other nodes in the returned scene graph will have reference counts according to the number of parent-child relationships, as usual. The common layout for how to load, work with and then finally destruct and return memory resources of scenegraphs usually goes like this:
// [snip] SoSeparator * root = SoDB::readAll(&input); if (!root) { exit(1); } // root-node returned from SoDB::readAll() has initial zero // ref-count, so reference it before we start using it to // avoid premature destruction. root->ref(); // [do your thing here -- rendering of the scene, whatever] // Bring ref-count of root-node back to zero to cause the // destruction of the scene. root->unref(); // (Upon self-destructing, the root-node will also de-reference // it's children nodes, so they also self-destruct, and so on // recursively down the scenegraph hierarchy until the complete // scenegraph has self-destructed and thereby returned all // memory resources it was using up.)
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Check if testString is a valid file format header identifier string.
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Register a header string which should be recognized by SoInput upon file import. This is a convenient way for library users to register their own VRML or Coin derived file formats.
Set isbinary to Callbacks precallback and postcallback will be called before and after importing the custom format.
If headerstring can not be accepted as a valid file format header for Coin files,
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Returns the settings for the given headerstring, if headerstring is a valid header.
If substringok is
If no valid header string by this name is found,
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Returns number of registered file headers.
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Returns the identifier header string of index i.
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Create a new global field by the given type, and identified in subsequent accesses to getGlobalField() by name. If a global field by the name and type already exists, returns a pointer to it. If a global field with the same name but a different type exists, returns
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If there exist a global field with the given name, return a pointer to it. If there is no field with this name, return
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Rename a global field. If to is an empty name, the from field gets deleted. If another global field already goes by the name to, that field will get deleted before the rename operation.
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Set the time interval between updates for the
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Returns the current trigger interval for the global realTime SbTime field.
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Turn on or off the realtime sensor. The most common use for turning the realtime sensor off is to control the realTime global field from the user application. This is for instance handy when you want to take screen snapshots at fixed intervals.
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Returns a pointer to the global sensor manager. The sensor manager keeps track of the sensor queues. |
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This is just a wrapper for the method in SoSensorManager by the same name.
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This is just a wrapper for the method in SoSensorManager by the same name.
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This is a wrapper around the POSIX The void* arguments must be valid pointers to fd_set structures. We've changed this from the original SGI Inventor API to avoid messing up the header file with system-specific includes. |
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Notify SoDB that there exists a way to convert data from the from SoField type to the to SoField type, by connecting them with an instance of the converter SoFieldConverter type. By doing this, SoDB::getConverter() will later be able to automatically return the type of the correct conversion class when requested. Coin internally provides conversion between most field types, so application programmers should usually not need to use this function. The exception is if you are writing your own field type classes, and want to be able to connect them to the internal field types (or other extensions field types).
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Return the type of an SoFieldConverter class which is able to convert data between fields of type from to the data field(s) of field type to. If no conversion between the given field types is possible, returns SoType::badType().
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Returns
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For internal use only. |
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For internal use only. |
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For internal use only. |