Coin
4.0.3
Coin3D core library
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The SoVRMLPixelTexture class is used for mapping a texture image onto geometry.. More...
#include <Inventor/VRMLnodes/SoVRMLPixelTexture.h>
Public Attributes | |
SoSFImage | image |
Public Attributes inherited from SoVRMLTexture | |
SoSFBool | repeatS |
SoSFBool | repeatT |
Protected Member Functions | |
virtual | ~SoVRMLPixelTexture () |
virtual const SoFieldData * | getFieldData (void) const |
virtual void | notify (SoNotList *list) |
virtual SbBool | readInstance (SoInput *in, unsigned short flags) |
Protected Member Functions inherited from SoVRMLTexture | |
SoVRMLTexture (void) | |
virtual | ~SoVRMLTexture () |
Protected Member Functions inherited from SoNode | |
SoNode (void) | |
virtual | ~SoNode () |
Protected Member Functions inherited from SoFieldContainer | |
SoFieldContainer (void) | |
virtual | ~SoFieldContainer () |
Protected Member Functions inherited from SoBase | |
SoBase (void) | |
virtual | ~SoBase () |
virtual SoNotRec | createNotRec (void) |
virtual void | destroy (void) |
virtual const char * | getFileFormatName (void) const |
SbBool | hasMultipleWriteRefs (void) const |
void | writeFooter (SoOutput *out) const |
SbBool | writeHeader (SoOutput *out, SbBool isgroup, SbBool isengine) const |
Static Protected Member Functions | |
static const SoFieldData ** | getFieldDataPtr (void) |
Static Protected Member Functions inherited from SoVRMLTexture | |
static const SoFieldData ** | getFieldDataPtr (void) |
Static Protected Member Functions inherited from SoNode | |
static const SoFieldData ** | getFieldDataPtr (void) |
static int | getNextActionMethodIndex (void) |
static void | incNextActionMethodIndex (void) |
static void | setCompatibilityTypes (const SoType &nodetype, const uint32_t bitmask) |
static void | setNextActionMethodIndex (int index) |
Static Protected Member Functions inherited from SoBase | |
static uint32_t | getCurrentWriteCounter (void) |
static void | staticDataLock (void) |
static void | staticDataUnlock (void) |
Additional Inherited Members | |
Public Types inherited from SoNode | |
enum | NodeType { INVENTOR = 0x0000 , VRML1 = 0x0001 , VRML2 = 0x0002 , INVENTOR_1 = 0x0004 , INVENTOR_2_0 = 0x0008 , INVENTOR_2_1 = 0x0010 , INVENTOR_2_5 = 0x0020 , INVENTOR_2_6 = 0x0040 , COIN_1_0 = 0x0080 , COIN_2_0 = 0x0100 , EXTENSION = 0x0200 , COIN_2_2 = 0x0400 , COIN_2_3 = 0x0800 , COIN_2_4 = 0x1000 , INVENTOR_5_0 = 0x2000 , COIN_2_5 = 0x4000 , COIN_3_0 = 0x8000 , INVENTOR_6_0 = 0x10000 , COIN_4_0 = 0x20000 } |
Protected Types inherited from SoBase | |
enum | BaseFlags { IS_ENGINE = 0x01 , IS_GROUP = 0x02 } |
Protected Attributes inherited from SoNode | |
SbUniqueId | uniqueId |
Protected Attributes inherited from SoFieldContainer | |
SbBool | isBuiltIn |
Static Protected Attributes inherited from SoNode | |
static int | nextActionMethodIndex = 0 |
static SbUniqueId | nextUniqueId = 1 |
The SoVRMLPixelTexture class is used for mapping a texture image onto geometry..
The detailed class documentation is taken verbatim from the VRML97 standard (ISO/IEC 14772-1:1997). It is copyright The Web3D Consortium, and is used by permission of the Consortium:
PixelTexture { exposedField SFImage image 0 0 0 # see SoSFImage field SFBool repeatS TRUE field SFBool repeatT TRUE }
The PixelTexture node defines a 2D image-based texture map as an explicit array of pixel values (image field) and parameters controlling tiling repetition of the texture onto geometry. Texture maps are defined in a 2D coordinate system (s, t) that ranges from 0.0 to 1.0 in both directions. The bottom edge of the pixel image corresponds to the S-axis of the texture map, and left edge of the pixel image corresponds to the T-axis of the texture map. The lower-left pixel of the pixel image corresponds to s=0.0, t=0.0, and the top-right pixel of the image corresponds to s = 1.0, t = 1.0. See 4.6.11, Texture maps (http://www.web3d.org/documents/specifications/14772/V2.0/part1/concepts.html#4.6.11), for a general description of texture maps. Figure 6.13 depicts an example PixelTexture.
See 4.14, Lighting model (http://www.web3d.org/documents/specifications/14772/V2.0/part1/concepts.html#4.14), for a description of how the texture values interact with the appearance of the geometry. SoSFImage, describes the specification of an image. The repeatS and repeatT fields specify how the texture wraps in the S and T directions. If repeatS is TRUE (the default), the texture map is repeated outside the 0-to-1 texture coordinate range in the S direction so that it fills the shape. If repeatS is FALSE, the texture coordinates are clamped in the S direction to lie within the 0.0 to 1.0 range. The repeatT field is analogous to the repeatS field.
SoVRMLPixelTexture::SoVRMLPixelTexture | ( | void | ) |
Constructor.
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protectedvirtual |
Destructor.
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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 SoNode.
This function performs the typical operation of a node for any action.
Reimplemented from SoNode.
This static method returns the SoType object associated with objects of this class.
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protectedvirtual |
Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL
.
Reimplemented from SoVRMLTexture.
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staticprotected |
This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.
Returns the SoFieldData class which holds information about fields in this node.
Returns the type identification of an object derived from a class inheriting SoBase. This is used for runtime type checking and "downward" casting.
Reimplemented from SoVRMLTexture.
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virtual |
Action method for the SoGLRenderAction.
This is called during rendering traversals. Nodes influencing the rendering state in any way or want to throw geometry primitives at OpenGL override this method.
Reimplemented from SoVRMLTexture.
Overloaded to detect when fields change.
Reimplemented from SoNode.
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virtual |
Action method for SoRayPickAction.
Checks the ray specification of the action and tests for intersection with the data of the node.
Nodes influencing relevant state variables for how picking is done also override this method.
Reimplemented from SoNode.
This method is mainly intended for internal use during file import operations.
It reads a definition of an instance from the input stream in. The input stream state points to the start of a serialized / persistent representation of an instance of this class type.
TRUE
or FALSE
is returned, depending on if the instantiation and configuration of the new object of this class type went OK or not. The import process should be robust and handle corrupted input streams by returning FALSE
.
flags is used internally during binary import when reading user extension nodes, group nodes or engines.
Reimplemented from SoNode.