本文整理汇总了C++中MFloatPointArray::setLength方法的典型用法代码示例。如果您正苦于以下问题：C++ MFloatPointArray::setLength方法的具体用法？C++ MFloatPointArray::setLength怎么用？C++ MFloatPointArray::setLength使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MFloatPointArray的用法示例。
在下文中一共展示了MFloatPointArray::setLength方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: load_from_hds
void load_from_hds(HDS &hds, MFloatPointArray &points, MIntArray &nFV, MIntArray &F)
{
size_t nV = hds.nV();
size_t nF = hds.nF();
size_t nIHE = hds.nIHE();
points.setLength(nV);
for (size_t k=0; k<nV; k++)
{
points[k](0) = hds.V[3*k+0];
points[k](1) = hds.V[3*k+1];
points[k](2) = hds.V[3*k+2];
}
nFV.setLength(nF);
for (size_t k=0; k<nF; k++) nFV[k] = hds.nFV[k];
F.setLength(nIHE);
for (size_t k=0; k<nIHE; k++) F[k] = hds.tip[k];
}示例2: doConversion
bool ToMayaMeshConverter::doConversion( IECore::ConstObjectPtr from, MObject &to, IECore::ConstCompoundObjectPtr operands ) const
{
MStatus s;
IECore::ConstMeshPrimitivePtr mesh = IECore::runTimeCast<const IECore::MeshPrimitive>( from );
assert( mesh );
if ( !mesh->arePrimitiveVariablesValid() )
{
return false;
}
MFloatPointArray vertexArray;
MIntArray polygonCounts;
MIntArray polygonConnects;
MFnMesh fnMesh;
int numVertices = 0;
IECore::PrimitiveVariableMap::const_iterator it = mesh->variables.find("P");
if ( it != mesh->variables.end() )
{
/// \todo Employ some M*Array converters to simplify this
IECore::ConstV3fVectorDataPtr p = IECore::runTimeCast<const IECore::V3fVectorData>(it->second.data);
if (p)
{
numVertices = p->readable().size();
vertexArray.setLength( numVertices );
for (int i = 0; i < numVertices; i++)
{
vertexArray[i] = IECore::convert<MFloatPoint, Imath::V3f>( p->readable()[i] );
}
}
else
{
IECore::ConstV3dVectorDataPtr p = IECore::runTimeCast<const IECore::V3dVectorData>(it->second.data);
if (p)
{
numVertices = p->readable().size();
vertexArray.setLength( numVertices );
for (int i = 0; i < numVertices; i++)
{
vertexArray[i] = IECore::convert<MFloatPoint, Imath::V3d>( p->readable()[i] );
}
}
else
{
// "P" is not convertible to an array of "points"
return false;
}
}
}
IECore::ConstIntVectorDataPtr verticesPerFace = mesh->verticesPerFace();
assert( verticesPerFace );
int numPolygons = verticesPerFace->readable().size();
polygonCounts.setLength( numPolygons );
for (int i = 0; i < numPolygons; i++)
{
polygonCounts[i] = verticesPerFace->readable()[i];
}
IECore::ConstIntVectorDataPtr vertexIds = mesh->vertexIds();
assert( vertexIds );
int numPolygonConnects = vertexIds->readable().size();
polygonConnects.setLength( numPolygonConnects );
for (int i = 0; i < numPolygonConnects; i++)
{
polygonConnects[i] = vertexIds->readable()[i];
}
MObject mObj = fnMesh.create( numVertices, numPolygons, vertexArray, polygonCounts, polygonConnects, to, &s );
if (!s)
{
return false;
}
it = mesh->variables.find("N");
if ( it != mesh->variables.end() )
{
if (it->second.interpolation == IECore::PrimitiveVariable::FaceVarying )
{
/// \todo Employ some M*Array converters to simplify this
MVectorArray vertexNormalsArray;
IECore::ConstV3fVectorDataPtr n = IECore::runTimeCast<const IECore::V3fVectorData>(it->second.data);
if (n)
{
int numVertexNormals = n->readable().size();
vertexNormalsArray.setLength( numVertexNormals );
for (int i = 0; i < numVertexNormals; i++)
{
vertexNormalsArray[i] = IECore::convert<MVector, Imath::V3f>( n->readable()[i] );
}
}
//.........这里部分代码省略.........
示例3: compute
MStatus testNpassiveNode::compute(const MPlug &plug, MDataBlock &data)
{
MStatus stat;
if ( plug == currentState )
{
// get old positions and numVerts
// if num verts is different, reset topo and zero velocity
// if num verts is the same, compute new velocity
int ii,jj;
// initialize MnCloth
MObject inMeshObj = data.inputValue(inputGeom).asMesh();
MFnMesh inputMesh(inMeshObj);
unsigned int numVerts = 0;
numVerts = inputMesh.numVertices();
unsigned int prevNumVerts;
fNObject.getNumVertices(prevNumVerts);
if(numVerts != prevNumVerts) {
int numPolygons = inputMesh.numPolygons();
int * faceVertCounts = new int[numPolygons];
int facesArrayLength = 0;
for(ii=0;ii<numPolygons;ii++) {
MIntArray verts;
inputMesh.getPolygonVertices(ii,verts);
faceVertCounts[ii] = verts.length();
facesArrayLength += verts.length();
}
int * faces = new int[facesArrayLength];
int currIndex = 0;
for(ii=0;ii<numPolygons;ii++) {
MIntArray verts;
inputMesh.getPolygonVertices(ii,verts);
for(jj=0;jj<(int)verts.length();jj++) {
faces[currIndex++] = verts[jj];
}
}
int numEdges = inputMesh.numEdges();
int * edges = new int[2*numEdges];
currIndex = 0;
for(ii=0;ii<numEdges;ii++) {
int2 edge;
inputMesh.getEdgeVertices(ii,edge);
edges[currIndex++] = edge[0];
edges[currIndex++] = edge[1];
}
// When you are doing the initialization, the first call must to be setTopology(). All other
// calls must come after this.
fNObject.setTopology(numPolygons, faceVertCounts, faces,numEdges, edges );
delete[] faceVertCounts;
delete[] faces;
delete[] edges;
MFloatPointArray vertexArray;
inputMesh.getPoints(vertexArray, MSpace::kWorld);
fNObject.setPositions(vertexArray,true);
MFloatPointArray velocitiesArray;
velocitiesArray.setLength(numVerts);
for(ii=0;ii<(int)numVerts;ii++) {
velocitiesArray[ii].x = 0.0f;
velocitiesArray[ii].y = 0.0f;
velocitiesArray[ii].z = 0.0f;
velocitiesArray[ii].w = 0.0f;
}
fNObject.setVelocities(velocitiesArray);
} else {
MFloatPointArray vertexArray;
MFloatPointArray prevVertexArray;
inputMesh.getPoints(vertexArray, MSpace::kWorld);
fNObject.getPositions(prevVertexArray);
// you may want to get the playback rate for the dt
// double dt = MAnimControl::playbackBy() \ 24.0;
// or get the real dt by caching the last eval time
double dt = 1.0/24.0;
MFloatPointArray velocitiesArray;
velocitiesArray.setLength(numVerts);
for(ii=0;ii<(int)numVerts;ii++) {
velocitiesArray[ii].x = (float)( (vertexArray[ii].x - prevVertexArray[ii].x)/dt);
velocitiesArray[ii].y = (float)( (vertexArray[ii].y - prevVertexArray[ii].y)/dt);
velocitiesArray[ii].z = (float)( (vertexArray[ii].x - prevVertexArray[ii].z)/dt);
velocitiesArray[ii].w = 0.0f;
}
fNObject.setVelocities(velocitiesArray);
fNObject.setPositions(vertexArray,true);
}
// in real life, you'd get these attribute values each frame and set them
fNObject.setThickness(0.1f);
fNObject.setBounce(0.0f);
fNObject.setFriction(0.1f);
fNObject.setCollisionFlags(true, true, true);
MFnNObjectData outputData;
MObject mayaNObjectData = outputData.create();
outputData.setObject(mayaNObjectData);
outputData.setObjectPtr(&fNObject);
outputData.setCached(false);
MDataHandle currStateOutputHandle = data.outputValue(currentState);
currStateOutputHandle.set(outputData.object());
}
//.........这里部分代码省略.........
示例4: createSubdividedMesh
MStatus TCC::createSubdividedMesh(int sdRes, int sdRefRes, MFnMesh &srcMesh, TCCData &tccData, MDataHandle outMeshHandle, float lineThickness, MStatus& stat)
{
HDS hds;
bool shouldCreateUVs = true;
size_t nV = srcMesh.numVertices();
size_t nF = srcMesh.numPolygons();
size_t nIHE = tccData.F.length();
bool consistentSizes= (tccData.pole.length()==nV) && (tccData.T.length()==nIHE) && (tccData.itv.length()==nIHE) & (tccData.corner.length()==nV);
if ((nV==0)||(nF==0)||(!consistentSizes)) return MS::kFailure;
MFloatArray uArray, vArray, sc_uArray, sc_vArray;
MIntArray uvIdx;
if (shouldCreateUVs)
{
createUVset(tccData, sdRes, uArray, vArray, sc_uArray, sc_vArray, uvIdx, lineThickness);
}
MFloatPointArray points;
srcMesh.getPoints(points);
store_in_hds(hds, points, tccData.nFV, tccData.F); // convert to HDS
finalize_HDS(hds);
size_t nHE = hds.nHE();
hds.T.setDims(1, nHE);
hds.itv.setDims(1, nHE);
hds.corner.setDims(1, nV);
// interior halfedge tags
for (size_t k=0; k<nV; k++)
{
hds.corner[k] = tccData.corner[k];
}
// interior halfedge tags
for (size_t k=0; k<nIHE; k++)
{
hds.T[k] = tccData.T[k];
hds.itv[k] = tccData.itv[k];
}
// border halfedge tags
for (size_t k=nIHE; k<nHE; k++)
{
hds.T[k] = false;
hds.itv[k] = hds.itv[hds.twin[k]];
}
TCC_MAX::subdivide(hds, sdRes);
if (sdRefRes>0)
{
HDS hds2;
copy_HDS(hds, hds2);
TCC_MAX::subdivide(hds2, sdRefRes);
memcpy(&hds.V[0], &hds2.V[0], hds.V.size() * sizeof(double));
}
MObject outMeshObj = outMeshHandle.asMesh();
MFnMesh outMeshFn(outMeshObj);
// if no topology change necessary, just update points!
if ( (outMeshFn.numFaceVertices() == hds.nIHE()) && (outMeshFn.numPolygons() == hds.nF()) )
{
size_t nV = hds.nV();
points.setLength(nV);
for (size_t k=0; k<nV; k++)
{
points[k](0) = hds.V[3*k+0];
points[k](1) = hds.V[3*k+1];
points[k](2) = hds.V[3*k+2];
}
stat = outMeshFn.setPoints(points); McheckErr(stat, "ERROR creating outputData");
if (shouldCreateUVs)
{
MString uvSet = "UnitPatchUVs";
MString sc_uvSet = "ScaledPatchUVs";
stat = outMeshFn.setUVs(uArray, vArray, &uvSet); McheckErr(stat, "ERROR setting UVs");
stat = outMeshFn.setUVs(sc_uArray, sc_vArray, &sc_uvSet); McheckErr(stat, "ERROR setting UVs");
}
return MS::kSuccess;
}
// Have to update connectivity and geometry
load_from_hds(hds, points, tccData.nFV, tccData.F);
nV = points.length();
nF = tccData.nFV.length();
//.........这里部分代码省略.........
示例5: compute
//.........这里部分代码省略.........
outputData.setCached(false);
MDataHandle currStateOutputHandle = data.outputValue(currentState);
currStateOutputHandle.set(outputData.object());
cerr<<"pull on currentState\n";
}
if ( plug == startState )
{
int ii,jj;
// initialize MnCloth
MObject inMeshObj = data.inputValue(inputGeom).asMesh();
MFnMesh inputMesh(inMeshObj);
int numPolygons = inputMesh.numPolygons();
int * faceVertCounts = new int[numPolygons];
int facesArrayLength = 0;
for(ii=0;ii<numPolygons;ii++) {
MIntArray verts;
inputMesh.getPolygonVertices(ii,verts);
faceVertCounts[ii] = verts.length();
facesArrayLength += verts.length();
}
int * faces = new int[facesArrayLength];
int currIndex = 0;
for(ii=0;ii<numPolygons;ii++) {
MIntArray verts;
inputMesh.getPolygonVertices(ii,verts);
for(jj=0;jj<(int)verts.length();jj++) {
faces[currIndex++] = verts[jj];
}
}
int numEdges = inputMesh.numEdges();
int * edges = new int[2*numEdges];
currIndex = 0;
for(ii=0;ii<numEdges;ii++) {
int2 edge;
inputMesh.getEdgeVertices(ii,edge);
edges[currIndex++] = edge[0];
edges[currIndex++] = edge[1];
}
// When you are doing the initialization, the first call must to be setTopology(). All other
// calls must come after this.
fNObject.setTopology(numPolygons, faceVertCounts, faces,numEdges, edges );
delete[] faceVertCounts;
delete[] faces;
delete[] edges;
unsigned int numVerts = 0;
numVerts = inputMesh.numVertices();
MFloatPointArray vertexArray;
inputMesh.getPoints(vertexArray);
fNObject.setPositions(vertexArray,true);
MFloatPointArray velocitiesArray;
velocitiesArray.setLength(numVerts);
for(ii=0;ii<(int)numVerts;ii++) {
velocitiesArray[ii].x = 0.0f;
velocitiesArray[ii].y = 0.0f;
velocitiesArray[ii].z = 0.0f;
velocitiesArray[ii].w = 0.0f;
}
fNObject.setVelocities(velocitiesArray);
fNObject.setThickness(0.05f);
fNObject.setInverseMass(1.0f);
fNObject.setBounce(0.0f);
fNObject.setFriction(0.1f);
fNObject.setDamping(0.0f);
fNObject.setBendResistance(0.0f);
fNObject.setMaxIterations(100);
fNObject.setMaxSelfCollisionIterations(100);
fNObject.setStretchAndCompressionResistance(20.0f,10.0f);
fNObject.setSelfCollisionFlags(false);
fNObject.setCollisionFlags(true);
MFnNObjectData outputData;
MObject mayaNObjectData = outputData.create();
outputData.setObject(mayaNObjectData);
outputData.setObjectPtr(&fNObject);
outputData.setCached(false);
MDataHandle startStateOutputHandle = data.outputValue(startState);
startStateOutputHandle.set(outputData.object());
cerr<<"pull on startState\n";
}
else {
stat = MS::kUnknownParameter;
}
return stat;
}