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Open Inventor Release 2024.1.3
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Open Inventor Release 2024.1.3
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Displays an image that always faces the camera.
More...
#include <Inventor/nodes/SoImage.h>
Inheritance diagram for SoImage:Public Types | |
| enum | HorAlignment { LEFT , CENTER , RIGHT } |
| Horizontal alignment. More... | |
| enum | VertAlignment { BOTTOM , HALF , TOP } |
| Vertical alignment. More... | |
| enum | FileType { UNKNOWN = SoTexture::UNKNOWN , RGB = SoTexture::RGB , SGI = SoTexture::SGI , TIFF = SoTexture::TIFF , GIF = SoTexture::GIF , JPEG = SoTexture::JPEG , BMP = SoTexture::BMP , PNG = SoTexture::PNG , JPEG2000 = SoTexture::JPEG2000 , PGX = SoTexture::PGX , PNM = SoTexture::PNM , RAS = SoTexture::RAS , DDS = SoTexture::DDS , HDRI = SoTexture::HDRI , NUM_FILETYPES } |
| File type. More... | |
| Public Types inherited from SoShape | |
| enum | ShapeType { POINTS , LINES , POLYGONS , TEXT } |
| Basic type for antialiased rendering for this shape (Do not consider the SoDrawStyle property currently in the state). More... | |
Public Member Functions | |
| virtual SoType | getTypeId () const |
| Returns the type identifier for this specific instance. | |
| SoImage () | |
| Constructor. | |
| Public Member Functions inherited from SoShape | |
| virtual SbBool | affectsState () const |
| Overrides default method on SoNode. | |
| ShapeType | getShapeType () |
| Gets the current shape Full Scene Antialiasing type. | |
| Public Member Functions inherited from SoNode | |
| virtual void | setOverride (const SbBool state) |
| Turns the override flag on or off. | |
| virtual SbBool | isOverride () const |
| Returns the state of the override flag. | |
| virtual SoNode * | copy (SbBool copyConnections=FALSE) const |
| Creates and returns an exact copy of the node. | |
| virtual void | touch () |
| Marks an instance as modified, simulating a change to it. | |
| Public Member Functions inherited from SoFieldContainer | |
| void | setToDefaults () |
| Sets all fields in this object to their default values. | |
| SbBool | hasDefaultValues () const |
| Returns TRUE if all of the object's fields have their default values. | |
| SbBool | fieldsAreEqual (const SoFieldContainer *fc) const |
| Returns TRUE if this object's fields are exactly equal to fc's fields. | |
| void | copyFieldValues (const SoFieldContainer *fc, SbBool copyConnections=FALSE) |
| Copies the contents of fc's fields into this object's fields. | |
| SoNONUNICODE SbBool | set (const char *fieldDataString) |
| Sets one or more fields in this object to the values specified in the given string, which should be a string in the Open Inventor file format. | |
| SbBool | set (const SbString &fieldDataString) |
| Sets one or more fields in this object to the values specified in the given string, which should be a string in the Open Inventor file format. | |
| void | get (SbString &fieldDataString) |
| Returns the values of the fields of this object in the Open Inventor ASCII file format in the given string. | |
| virtual int | getFields (SoFieldList &list) const |
| Appends references to all of this object's fields to resultList, and returns the number of fields appended. | |
| virtual int | getAllFields (SoFieldList &list) const |
| Returns a list of fields, including the eventIn's and eventOut's. | |
| virtual SoField * | getField (const SbName &fieldName) const |
| Returns a the field of this object whose name is fieldName. | |
| virtual SoField * | getEventIn (const SbName &fieldName) const |
| Returns a the eventIn with the given name. | |
| virtual SoField * | getEventOut (const SbName &fieldName) const |
| Returns the eventOut with the given name. | |
| SbBool | getFieldName (const SoField *field, SbName &fieldName) const |
| Returns the name of the given field in the fieldName argument. | |
| SbBool | enableNotify (SbBool flag) |
| Notification at this Field Container is enabled (if flag == TRUE) or disabled (if flag == FALSE). | |
| SbBool | isNotifyEnabled () const |
| Notification is the process of telling interested objects that this object has changed. | |
| virtual void | setUserData (void *data) |
| Sets application data. | |
| void * | getUserData (void) const |
| Gets user application data. | |
| Public Member Functions inherited from SoBase | |
| virtual SbName | getName () const |
| Returns the name of an instance. | |
| virtual void | setName (const SbName &name) |
| Sets the name of an instance. | |
| void | setSynchronizable (const bool b) |
| Sets this to be a ScaleViz synchronizable object. | |
| bool | isSynchronizable () const |
| Gets the ScaleViz synchronizable state of this object. | |
| Public Member Functions inherited from SoRefCounter | |
| void | ref () const |
| Adds a reference to an instance. | |
| void | unref () const |
| Removes a reference from an instance. | |
| void | unrefNoDelete () const |
| unrefNoDelete() should be called when it is desired to decrement the reference count, but not delete the instance if this brings the reference count to zero. | |
| int | getRefCount () const |
| Returns current reference count. | |
| void | lock () const |
| lock this instance. | |
| void | unlock () const |
| unlock this instance. | |
| Public Member Functions inherited from SoTypedObject | |
| SbBool | isOfType (const SoType &type) const |
| Returns TRUE if this object is of the type specified in type or is derived from that type. | |
| template<typename TypedObjectClass > | |
| SbBool | isOfType () const |
| Returns TRUE if this object is of the type of class TypedObjectClass or is derived from that class. | |
Static Public Member Functions | |
| static SoType | getClassTypeId () |
| Returns the type identifier for this class. | |
| Static Public Member Functions inherited from SoShape | |
| static SoType | getClassTypeId () |
| Returns the type identifier for this class. | |
| static SbBool | isPrimitiveRestartAvailable (SoState *state=NULL) |
| Returns TRUE if the primitive restart feature is available. | |
| Static Public Member Functions inherited from SoNode | |
| static SoType | getClassTypeId () |
| Returns the type identifier for this class. | |
| static SoNode * | getByName (const SbName &name) |
| A node's name can be set using SoBase::setName(). | |
| static int | getByName (const SbName &name, SoNodeList &list) |
| A node's name can be set using SoBase::setName(). | |
| Static Public Member Functions inherited from SoFieldContainer | |
| static SoType | getClassTypeId () |
| Returns the type of this class. | |
| Static Public Member Functions inherited from SoBase | |
| static SoType | getClassTypeId () |
| Returns type identifier for this class. | |
| Static Public Member Functions inherited from SoTypedObject | |
| static SoType | getClassTypeId () |
| Returns the type identifier for this class. | |
Public Attributes | |
| SoSFFilePathString | filename |
| Names file from which to read image. | |
| SoSFImage | image |
| Contains an in-memory representation of the image. | |
| SoSFEnum | horAlignment |
| Horizontal alignment. | |
| SoSFEnum | vertAlignment |
| Vertical alignment. | |
| SoSFInt32 | width |
| Width of image in pixels (optional). | |
| SoSFInt32 | height |
| Height of image in pixels (optional). | |
| Public Attributes inherited from SoShape | |
| SoSFBool | boundingBoxIgnoring |
| Whether to ignore this node during bounding box traversal. | |
Displays an image that always faces the camera.
The SoImage node allows you to display an image without using the texture facilities. The image is a 2D image attached to a 3D justification point. The justification point is at (0,0,0) after applying the current transformation. The image is always parallel to the screen. The image is not resized when the render window is resized.
The image can be read from the file specified by the filename field. Once the image has been read, the image field contains the image data. However, this field is marked so the image is not written out when the image node is written to a file. To turn off the image, set the filename field to an empty string ("").
Images can also be specified in memory by setting the image field to contain the image data. Doing so resets the file name to the empty string.
This node can be useful for placing a logo in the scene, or for attaching an icon or marker to a 3D point.
By default (or when the width and height fields are both set to negative values), the actual size of the image is used. If the width and/or height are specified, the image is scaled to the specified size in pixels.
Note that SoImage automatically enables blending for 2 or 4 component images, but it does not set the blending function. However, if you have enabled transparency, or if any of the textures in your scene graph have 2 or 4 components, the blending function will be set.
Note that the position of the image on the screen depends on the current camera settings, so generally this node should not be render cached. SoImage nodes prohibit auto-caching, so that no SoSeparator (or other render caching node) above an SoImage in the scene graph will automatically create a render cache. This can significantly affect performance and applications should try to keep nodes that can be render cached (especially geometry nodes) under a different SoSeparator.
Note that SoImage does not cast a shadow (SoShadowGroup).
Shape Antialiasing type is SoShape::POINTS.
| filename | " " |
| image | 0 0 0 |
| horAlignment | LEFT |
| vertAlignment | BOTTOM |
| width | -1 |
| height | -1 |
SoRayPickAction
Picks the image based on the current transformation and view.
SoGetPrimitiveCountAction
Increments the number of images by 1.
| enum SoImage::FileType |
File type.
| SoImage::SoImage | ( | ) |
Constructor.
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static |
Returns the type identifier for this class.
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virtual |
Returns the type identifier for this specific instance.
Reimplemented from SoShape.
| SoSFFilePathString SoImage::filename |
Names file from which to read image.
The standard image file formats are supported. See SoRasterImageRW for the list. If the filename is not an absolute path name, the list of directories maintained by SoInput is searched. If the texture is not found in any of those directories, then the file is searched for relative to the directory from which the SoImage node was read. For example, if an SoImage node with a filename of "../tofu.rgb" is read from /usr/people/bob/models/food.iv, then /usr/people/bob/tofu.rgb will be read (assuming tofu.rgb isn't found in the directories maintained by SoInput).
| SoSFInt32 SoImage::height |
| SoSFEnum SoImage::horAlignment |
Horizontal alignment.
For example, if the image is RIGHT BOTTOM justified, the bottom right-hand corner of the image is placed at the justification point. Use enum HorAlignment. Default is LEFT.
| SoSFImage SoImage::image |
| SoSFEnum SoImage::vertAlignment |
Vertical alignment.
For example, if the image is RIGHT BOTTOM justified, the bottom right-hand corner of the image is placed at the justification point. Use enum VertAlignment. Default is BOTTOM.
| SoSFInt32 SoImage::width |
1.9.8 