Provided by: libcoin60-doc_3.1.3-2_all

**NAME**

SoVRMLNormalInterpolator - TheSoVRMLNormalInterpolatorclass is used to interpolate normals.ThedetailedclassdocumentationistakenverbatimfromtheVRML97standard(ISO/IEC14772-1:1997).ItiscopyrightTheWeb3DConsortium,andisusedbypermissionoftheConsortium:

**SYNOPSIS**

#include <Inventor/VRMLnodes/SoVRMLNormalInterpolator.h> InheritsSoVRMLInterpolator.PublicMemberFunctionsSoVRMLNormalInterpolator(void)StaticPublicMemberFunctionsstatic voidinitClass(void)PublicAttributesSoMFVec3fkeyValueSoEngineOutputvalue_changedProtectedMemberFunctionsvirtual~SoVRMLNormalInterpolator()

**Detailed** **Description**

TheSoVRMLNormalInterpolatorclass is used to interpolate normals.ThedetailedclassdocumentationistakenverbatimfromtheVRML97standard(ISO/IEC14772-1:1997).ItiscopyrightTheWeb3DConsortium,andisusedbypermissionoftheConsortium:NormalInterpolator { eventIn SFFloat set_fraction # (-inf, inf) exposedField MFFloat key [] # (-inf, inf) exposedField MFVec3f keyValue [] # (-inf, inf) eventOut MFVec3f value_changed } .fi The NormalInterpolator node interpolates among a list of normal vector sets specified by the keyValue field. The output vector, value_changed, shall be a set of normalized vectors. Values in the keyValue field shall be of unit length. The number of normals in the keyValue field shall be an integer multiple of the number of keyframes in the key field. That integer multiple defines how many normals will be contained in the value_changed events. Normal interpolation shall be performed on the surface of the unit sphere. That is, the output values for a linear interpolation from a point P on the unit sphere to a point Q also on the unit sphere shall lie along the shortest arc (on the unit sphere) connecting points P and Q. Also, equally spaced input fractions shall result in arcs of equal length. The results are undefined if P and Q are diagonally opposite. A more detailed discussion of interpolators is provided in 4.6.8, Interpolator nodes (<http://www.web3d.org/x3d/specifications/vrml/ISO-IEC-14772-VRML97/part1/concepts.html#4.6.8>).

**Constructor** **&** **Destructor** **Documentation**

SoVRMLNormalInterpolator::SoVRMLNormalInterpolator(void)Constructor.SoVRMLNormalInterpolator::~SoVRMLNormalInterpolator()[protected,virtual]Destructor.

**Member** **Function** **Documentation**

voidSoVRMLNormalInterpolator::initClass(void)[static]Setsupinitializationfordatacommontoallinstancesofthisclass,likesubmittingnecessaryinformationtotheCointypesystem.Reimplemented fromSoVRMLInterpolator.

**Member** **Data** **Documentation**

SoMFVec3fSoVRMLNormalInterpolator::keyValueThekeyValuevector.SoEngineOutputSoVRMLNormalInterpolator::value_changedTheeventOutwhichissenteverytimetheinterpolatorhascalculatedanewvalue.

**Author**

Generated automatically by Doxygen for Coin from the source code.