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Only certain elements can be overridden. More...
#include <Inventor/elements/SoOverrideElement.h>
Public Types | |
enum | FlagBits { AMBIENT_COLOR = 0x00000001, COLOR_INDEX = 0x00000002, COMPLEXITY = 0x00000004, COMPLEXITY_TYPE = 0x00000008, CREASE_ANGLE = 0x00000010, DIFFUSE_COLOR = 0x00000020, DRAW_STYLE = 0x00000040, EMISSIVE_COLOR = 0x00000080, FONT_NAME = 0x00000100, FONT_SIZE = 0x00000200, LIGHT_MODEL = 0x00000400, LINE_PATTERN = 0x00000800, LINE_WIDTH = 0x00001000, MATERIAL_BINDING = 0x00002000, POINT_SIZE = 0x00004000, PICK_STYLE = 0x00008000, SHAPE_HINTS = 0x00010000, SHININESS = 0x00020000, SPECULAR_COLOR = 0x00040000, POLYGON_OFFSET = 0x00080000, TRANSPARENCY = 0x00100000, TRANSPARENCY_TYPE = 0x00200000, NORMAL_VECTOR = 0x00400000, NORMAL_BINDING = 0x00800000 } |
Public Member Functions | |
virtual void | init (SoState *state) |
FIXME: write doc. | |
virtual void | push (SoState *state) |
FIXME: write doc. | |
virtual SbBool | matches (const SoElement *element) const |
FIXME: write doc. | |
virtual SoElement * | copyMatchInfo (void) const |
FIXME: write doc. | |
virtual void | print (FILE *file) const |
FIXME: write doc. | |
Static Public Member Functions | |
static SoType | getClassTypeId (void) |
static int | getClassStackIndex (void) |
static void * | createInstance (void) |
static void | initClass (void) |
static uint32_t | getFlags (SoState *const state) |
static SbBool | getAmbientColorOverride (SoState *const state) |
static SbBool | getColorIndexOverride (SoState *const state) |
static SbBool | getComplexityOverride (SoState *const state) |
static SbBool | getComplexityTypeOverride (SoState *const state) |
static SbBool | getCreaseAngleOverride (SoState *const state) |
static SbBool | getDiffuseColorOverride (SoState *const state) |
static SbBool | getDrawStyleOverride (SoState *const state) |
static SbBool | getEmissiveColorOverride (SoState *const state) |
static SbBool | getFontNameOverride (SoState *const state) |
static SbBool | getFontSizeOverride (SoState *const state) |
static SbBool | getLightModelOverride (SoState *const state) |
static SbBool | getLinePatternOverride (SoState *const state) |
static SbBool | getLineWidthOverride (SoState *const state) |
static SbBool | getMaterialBindingOverride (SoState *const state) |
static SbBool | getPickStyleOverride (SoState *const state) |
static SbBool | getPointSizeOverride (SoState *const state) |
static SbBool | getPolygonOffsetOverride (SoState *const state) |
static SbBool | getShapeHintsOverride (SoState *const state) |
static SbBool | getShininessOverride (SoState *const state) |
static SbBool | getSpecularColorOverride (SoState *const state) |
static SbBool | getTransparencyOverride (SoState *const state) |
static SbBool | getTransparencyTypeOverride (SoState *const state) |
static SbBool | getNormalVectorOverride (SoState *const state) |
static SbBool | getNormalBindingOverride (SoState *const state) |
static void | setAmbientColorOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setColorIndexOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setComplexityOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setComplexityTypeOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setCreaseAngleOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setDiffuseColorOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setDrawStyleOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setEmissiveColorOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setFontNameOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setFontSizeOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setLightModelOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setLinePatternOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setLineWidthOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setMaterialBindingOverride (SoState *const state, SoNode *const node, const SbBool override) |
FIXME: write doc. | |
static void | setPickStyleOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setPointSizeOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setPolygonOffsetOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setShapeHintsOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setShininessOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setSpecularColorOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setTransparencyOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setTransparencyTypeOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setNormalVectorOverride (SoState *const state, SoNode *const node, const SbBool override) |
static void | setNormalBindingOverride (SoState *const state, SoNode *const node, const SbBool override) |
Protected Member Functions | |
virtual | ~SoOverrideElement () |
Only certain elements can be overridden.
The remaining class documentation describes a single, special case:
A common request for functionality is to override only the transparency of the full scene graph, or parts of the scene graph.
In the original SGI Inventor, this is nigh impossible, as the API was designed to only make it possible to override all or none of the fields of a node. So calling SoNode::setOverride() on an SoMaterial node will cause all material settings of that node to override all material settings further on in the scene graph, and there is no way to override only the transparency settings.
In Coin, we have added in a little hack to overcome this problem, since it is such a common request for functionality: to have separate transparency override settings, set the environment variable COIN_SEPARATE_DIFFUSE_TRANSPARENCY_OVERRIDE
to "1" to enable this hack.
(Do however note that this will not work when the SoPackedColor or SoVertexProperty node is used to specify diffuse color and transparency -- only with the SoMaterial node.)
Here is a complete, stand-alone example which demonstrates how to accomplish this:
#include <Inventor/Qt/SoQt.h> #include <Inventor/Qt/viewers/SoQtExaminerViewer.h> #include <Inventor/nodes/SoSeparator.h> #include <Inventor/nodes/SoMaterial.h> // ************************************************************************* const char * scene = "#Inventor V2.1 asci\n" "\n" "Separator {" " Cone { }" " Translation { translation 1 0 5 }" "" " DEF OVERRIDEMATERIAL Material { transparency 0.5 }" "" " DEF OBJMATERIAL Material {" " diffuseColor 0.5 0 0" " transparency 0" " }" " Sphere { }" "}" ; int main(int argc, char ** argv) { QWidget * window = SoQt::init(argv[0]); (void)coin_setenv("COIN_SEPARATE_DIFFUSE_TRANSPARENCY_OVERRIDE", "1", TRUE); SoInput * in = new SoInput; in->setBuffer((void *)scene, strlen(scene)); SoSeparator * root = SoDB::readAll(in); assert(root); delete in; root->ref(); SoMaterial * overridemat = (SoMaterial *) SoBase::getNamedBase("OVERRIDEMATERIAL", SoMaterial::getClassTypeId()); assert(overridemat); overridemat->diffuseColor.setIgnored(TRUE); overridemat->setOverride(TRUE); SoQtExaminerViewer * viewer = new SoQtExaminerViewer(window); viewer->setSceneGraph(root); viewer->show(); SoQt::show(window); SoQt::mainLoop(); delete viewer; root->unref(); return 0; }
FIXME: write doc.
SoOverrideElement::~SoOverrideElement | ( | void | ) | [protected, virtual] |
The destructor.
SoType SoOverrideElement::getClassTypeId | ( | void | ) | [static] |
This static method returns the class type.
Reimplemented from SoElement.
Referenced by SoAction::initClass().
int SoOverrideElement::getClassStackIndex | ( | void | ) | [static] |
This static method returns the state stack index for the class.
Reimplemented from SoElement.
Referenced by SoAction::initClass().
void * SoOverrideElement::createInstance | ( | void | ) | [static] |
This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.
void SoOverrideElement::initClass | ( | void | ) | [static] |
This static method initializes static data for the SoOverrideElement class.
Reimplemented from SoElement.
SbBool SoOverrideElement::getAmbientColorOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
SbBool SoOverrideElement::getColorIndexOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
Referenced by SoColorIndex::GLRender().
SbBool SoOverrideElement::getComplexityOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
Referenced by SoComplexity::doAction(), and SoComplexity::getPrimitiveCount().
SbBool SoOverrideElement::getComplexityTypeOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
Referenced by SoComplexity::doAction().
SbBool SoOverrideElement::getCreaseAngleOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
SbBool SoOverrideElement::getDiffuseColorOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
Referenced by SoPackedColor::doAction(), SoBaseColor::doAction(), and SoVRMLColor::doAction().
SbBool SoOverrideElement::getDrawStyleOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
SbBool SoOverrideElement::getEmissiveColorOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
SbBool SoOverrideElement::getFontNameOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
SbBool SoOverrideElement::getFontSizeOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
SbBool SoOverrideElement::getLightModelOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
Referenced by SoLightModel::doAction().
SbBool SoOverrideElement::getLinePatternOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
SbBool SoOverrideElement::getLineWidthOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
SbBool SoOverrideElement::getMaterialBindingOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
Referenced by SoMaterialBinding::doAction().
SbBool SoOverrideElement::getPickStyleOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
Referenced by SoPickStyle::doAction().
SbBool SoOverrideElement::getPointSizeOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
SbBool SoOverrideElement::getPolygonOffsetOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
Referenced by SoPolygonOffset::doAction().
SbBool SoOverrideElement::getShapeHintsOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
SbBool SoOverrideElement::getShininessOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
SbBool SoOverrideElement::getSpecularColorOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
SbBool SoOverrideElement::getTransparencyOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
SbBool SoOverrideElement::getTransparencyTypeOverride | ( | SoState *const | state | ) | [static] |
FIXME: write doc.
Referenced by SoTransparencyType::doAction().
SbBool SoOverrideElement::getNormalVectorOverride | ( | SoState *const | state | ) | [static] |
SbBool SoOverrideElement::getNormalBindingOverride | ( | SoState *const | state | ) | [static] |
void SoOverrideElement::setAmbientColorOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoMaterial::doAction(), and SoVRMLMaterial::doAction().
void SoOverrideElement::setColorIndexOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoColorIndex::GLRender().
void SoOverrideElement::setComplexityOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoComplexity::doAction().
void SoOverrideElement::setComplexityTypeOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoComplexity::doAction().
void SoOverrideElement::setCreaseAngleOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoShapeHints::doAction().
void SoOverrideElement::setDiffuseColorOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
Can be used to set diffuse color override. This will also set the transparency override. Since we feel this is a design flaw, it is possible to override this behaviour by setting an environement value called COIN_SEPARATE_DIFFUSE_TRANSPARENCY_OVERRIDE to 1.
Please note that separate override will not work for the PackedColor or SoVertexProperty nodes.
Referenced by SoVertexProperty::doAction(), SoPackedColor::doAction(), SoMaterial::doAction(), SoBaseColor::doAction(), SoVRMLMaterial::doAction(), and SoVRMLColor::doAction().
void SoOverrideElement::setDrawStyleOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoDrawStyle::doAction().
void SoOverrideElement::setEmissiveColorOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoMaterial::doAction(), and SoVRMLMaterial::doAction().
void SoOverrideElement::setFontNameOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoFontStyle::doAction(), and SoFont::doAction().
void SoOverrideElement::setFontSizeOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoFontStyle::doAction(), and SoFont::doAction().
void SoOverrideElement::setLightModelOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoLightModel::doAction().
void SoOverrideElement::setLinePatternOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoDrawStyle::doAction().
void SoOverrideElement::setLineWidthOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoDrawStyle::doAction().
void SoOverrideElement::setPickStyleOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoPickStyle::doAction().
void SoOverrideElement::setPointSizeOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoDrawStyle::doAction().
void SoOverrideElement::setPolygonOffsetOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoPolygonOffset::doAction().
void SoOverrideElement::setShapeHintsOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoShapeHints::doAction(), and SoShadowCulling::GLRender().
void SoOverrideElement::setShininessOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoMaterial::doAction(), and SoVRMLMaterial::doAction().
void SoOverrideElement::setSpecularColorOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
FIXME: write doc.
Referenced by SoMaterial::doAction(), and SoVRMLMaterial::doAction().
void SoOverrideElement::setTransparencyOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
Can be used to set the transparency override.
Referenced by SoMaterial::doAction(), and SoVRMLMaterial::doAction().
void SoOverrideElement::setTransparencyTypeOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
Can be used to set the transparency type override.
Referenced by SoTransparencyType::doAction().
void SoOverrideElement::setNormalVectorOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
Can be used to set normal vector override.
Referenced by SoVertexProperty::doAction(), and SoNormal::doAction().
void SoOverrideElement::setNormalBindingOverride | ( | SoState *const | state, | |
SoNode *const | node, | |||
const SbBool | override | |||
) | [static] |
Can be used to set normal binding override.
Referenced by SoVertexProperty::doAction(), and SoNormalBinding::doAction().
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