typename Field2<NUMCOMPONENTS>::DataType
Field2<NUMCOMPONENTS>::node(const card32 i_, const card32 j_) const {
DataType out;
for(size_t k=0; k<NUMCOMPONENTS; ++k)
out[k] = mGridData.data[NUMCOMPONENTS*linearIndex(i_, j_) + k];
return out;
}
typename Field2<NUMCOMPONENTS>::DataType
Field2<NUMCOMPONENTS>::sample(const PosType &x_) const {
assert(mGridData.data.size());
//check bounds
if(!insideBounds(x_))
return DataType().setZero();
//get uniform parametrization location
PosType localPos;
localPos[0] = (x_[0] - mGridData.boundMin[0]) * mInvScaleFactor[0];
localPos[1] = (x_[1] - mGridData.boundMin[1]) * mInvScaleFactor[1];
//get grid indices
const card32 i0 = card32(std::floor(localPos[0])),
j0 = card32(std::floor(localPos[1]));
const card32 i1 = min(mGridData.dims[0]-1, i0+1),
j1 = min(mGridData.dims[1]-1, j0+1);
//get uniform parametrization
const float32 u = localPos[0] - float32(i0),
v = localPos[1] - float32(j0);
//perform bilinear interpolation for each data component
const float32 b00 = (1-u)*(1-v),
b10 = u*(1-v),
b01 = (1-u)*v,
b11 = u*v;
DataType out;
for(size_t k=0; k<NUMCOMPONENTS; ++k)
out[k] = b00 * mGridData.data[NUMCOMPONENTS*linearIndex(i0, j0) + k] +
b10 * mGridData.data[NUMCOMPONENTS*linearIndex(i1, j0) + k] +
b01 * mGridData.data[NUMCOMPONENTS*linearIndex(i0, j1) + k] +
b11 * mGridData.data[NUMCOMPONENTS*linearIndex(i1, j1) + k];
return out;
}
int TileIndex::indexLon(const int getLevel) const
{
return linearIndex(getLevel) % Tiling;
}
int TileIndex::indexLat(const int getLevel) const
{
return linearIndex(getLevel) / Tiling;
}
/// Set the mask flag of the detector with given index. Not thread safe.
void DetectorInfo::setMasked(const std::pair<size_t, size_t> &index,
bool masked) {
m_isMasked.access()[linearIndex(index)] = masked;
}
/// Returns true if the detector with given index is masked.
bool DetectorInfo::isMasked(const std::pair<size_t, size_t> &index) const {
return (*m_isMasked)[linearIndex(index)];
}
MStatus genRod(
const MPoint &p0,
const MPoint &p1,
const double radius,
const unsigned int nSegs,
int &nPolys,
MPointArray &verts,
MIntArray &polyCounts,
MIntArray &polyConnects
)
{
verts.clear();
polyCounts.clear();
polyConnects.clear();
unsigned int nCirclePts = nSegs;
unsigned int nVerts = 2 * nCirclePts;
// Calculate the local axiis of the rod
MVector vec( p1 - p0 );
MVector up( 0.0, 1.0, 0.0 );
MVector xAxis, yAxis, zAxis;
yAxis = vec.normal();
if( up.isParallel( yAxis, 0.1 ) )
up = MVector( 1.0, 0.0, 0.0 );
xAxis = yAxis ^ up;
zAxis = (xAxis ^ yAxis).normal();
xAxis = (yAxis ^ zAxis ).normal();
// Calculate the vertex positions
verts.setLength( nVerts );
double angleIncr = 2.0 * M_PI / nSegs;
double angle;
MPoint p;
double x, z;
unsigned int i;
for( i=0, angle=0; i < nCirclePts; i++, angle += angleIncr )
{
// Calculate position in circle
x = radius * cos( angle );
z = radius * sin( angle );
p = p0 + x * xAxis + z * zAxis;
verts[ i ] = p;
p += vec;
verts[ i + nCirclePts ] = p;
}
nPolys = nSegs;
// Generate polycounts
polyCounts.setLength( nPolys );
for( i=0; i < polyCounts.length(); i++ )
polyCounts[i] = 4;
// Generate polyconnects
polyConnects.setLength( nPolys * 4 );
polyConnects.clear();
for( i=0; i < nSegs; i++ )
{
polyConnects.append( linearIndex( 0, i, 2, nCirclePts ) );
polyConnects.append( linearIndex( 0, i+1, 2, nCirclePts ) );
polyConnects.append( linearIndex( 1, i+1, 2, nCirclePts ) );
polyConnects.append( linearIndex( 1, i, 2, nCirclePts ) );
}
return MS::kSuccess;
}
MStatus genBall(
const MPoint ¢re,
const double radius,
const unsigned int nSegs,
int &nPolys,
MPointArray &verts,
MIntArray &polyCounts,
MIntArray &polyConnects
)
{
verts.clear();
polyCounts.clear();
polyConnects.clear();
int nAzimuthSegs = nSegs * 2;
int nZenithSegs = nSegs;
int nAzimuthPts = nAzimuthSegs; // Last point corresponds to the first
int nZenithPts = nZenithSegs + 1; // Last point is at other pole
double azimIncr = 2.0 * M_PI / nAzimuthSegs;
double zenIncr = M_PI / nZenithSegs;
MPoint p;
double azimuth, zenith;
double sinZenith;
int azi, zeni;
zenith = 0.0;
for( zeni=0; zeni < nZenithPts; zeni++, zenith += zenIncr )
{
azimuth = 0.0;
for( azi=0; azi < nAzimuthPts; azi++, azimuth += azimIncr )
{
sinZenith = sin(zenith);
p.x = radius * sinZenith * cos(azimuth);
p.y = radius * cos(zenith);
p.z = radius * sinZenith * sin(azimuth);
verts.append( p );
}
}
// Calculate the number of polygons
nPolys = nAzimuthSegs * nZenithSegs;
// Each face has four points
polyCounts.setLength( nPolys );
int i;
for( i=0; i < nPolys; i++ )
polyCounts[i] = 4;
// Generate the faces
for( zeni=0; zeni < nZenithSegs; zeni++ )
{
for( azi=0; azi < nAzimuthSegs; azi++ )
{
//MGlobal::displayInfo( MString( "\n" ) + azi + "," + zeni );
polyConnects.append( linearIndex( zeni, azi, nZenithPts, nAzimuthPts ) );
polyConnects.append( linearIndex( zeni, azi+1, nZenithPts, nAzimuthPts ) );
polyConnects.append( linearIndex( zeni+1, azi+1, nZenithPts, nAzimuthPts ) );
polyConnects.append( linearIndex( zeni+1, azi, nZenithPts, nAzimuthPts ) );
}
}
return MS::kSuccess;
}
void Field2<NUMCOMPONENTS>::setNode(const card32 i_, const card32 j_,
DataType data_) {
for(size_t k=0; k<NUMCOMPONENTS; ++k)
mGridData.data[NUMCOMPONENTS*linearIndex(i_, j_) + k] = data_[k];
}
