void
Distance::analyzeFrame(int frnr, const t_trxframe &fr, t_pbc *pbc,
TrajectoryAnalysisModuleData *pdata)
{
AnalysisDataHandle dh = pdata->dataHandle(data_);
const Selection &sel1 = pdata->parallelSelection(sel_[0]);
const Selection &sel2 = pdata->parallelSelection(sel_[1]);
rvec dx;
real r;
const SelectionPosition &p1 = sel1.position(0);
const SelectionPosition &p2 = sel2.position(0);
if (pbc != NULL)
{
pbc_dx(pbc, p1.x(), p2.x(), dx);
}
else
{
rvec_sub(p1.x(), p2.x(), dx);
}
r = norm(dx);
dh.startFrame(frnr, fr.time);
dh.setPoint(0, r);
dh.setPoints(1, 3, dx);
dh.finishFrame();
}
void
AnalysisTemplate::analyzeFrame(int frnr, const t_trxframe &fr, t_pbc *pbc,
TrajectoryAnalysisModuleData *pdata)
{
AnalysisDataHandle dh = pdata->dataHandle(data_);
const Selection &refsel = pdata->parallelSelection(refsel_);
AnalysisNeighborhoodSearch nbsearch = nb_.initSearch(pbc, refsel);
dh.startFrame(frnr, fr.time);
for (size_t g = 0; g < sel_.size(); ++g)
{
const Selection &sel = pdata->parallelSelection(sel_[g]);
int nr = sel.posCount();
real frave = 0.0;
for (int i = 0; i < nr; ++i)
{
SelectionPosition p = sel.position(i);
frave += nbsearch.minimumDistance(p.x());
}
frave /= nr;
dh.setPoint(g, frave);
}
dh.finishFrame();
}
void
Angle::analyzeFrame(int frnr, const t_trxframe &fr, t_pbc *pbc,
TrajectoryAnalysisModuleData *pdata)
{
AnalysisDataHandle dh = pdata->dataHandle(angles_);
const SelectionList &sel1 = pdata->parallelSelections(sel1_);
const SelectionList &sel2 = pdata->parallelSelections(sel2_);
checkSelections(sel1, sel2);
dh.startFrame(frnr, fr.time);
for (size_t g = 0; g < sel1_.size(); ++g)
{
rvec v1, v2;
rvec c1, c2;
switch (g2type_[0])
{
case 'z':
clear_rvec(v2);
v2[ZZ] = 1.0;
clear_rvec(c2);
break;
case 's':
copy_rvec(sel2_[g].position(0).x(), c2);
break;
}
for (int i = 0, j = 0, n = 0;
i < sel1[g].posCount();
i += natoms1_, j += natoms2_, ++n)
{
rvec x[4];
real angle;
copy_pos(sel1, natoms1_, g, i, x);
switch (g1type_[0])
{
case 'a':
if (pbc)
{
pbc_dx(pbc, x[0], x[1], v1);
pbc_dx(pbc, x[2], x[1], v2);
}
else
{
rvec_sub(x[0], x[1], v1);
rvec_sub(x[2], x[1], v2);
}
angle = gmx_angle(v1, v2);
break;
case 'd':
{
rvec dx[3];
if (pbc)
{
pbc_dx(pbc, x[0], x[1], dx[0]);
pbc_dx(pbc, x[2], x[1], dx[1]);
pbc_dx(pbc, x[2], x[3], dx[2]);
}
else
{
rvec_sub(x[0], x[1], dx[0]);
rvec_sub(x[2], x[1], dx[1]);
rvec_sub(x[2], x[3], dx[2]);
}
cprod(dx[0], dx[1], v1);
cprod(dx[1], dx[2], v2);
angle = gmx_angle(v1, v2);
real ipr = iprod(dx[0], v2);
if (ipr < 0)
{
angle = -angle;
}
break;
}
case 'v':
case 'p':
calc_vec(natoms1_, x, pbc, v1, c1);
switch (g2type_[0])
{
case 'v':
case 'p':
copy_pos(sel2, natoms2_, 0, j, x);
calc_vec(natoms2_, x, pbc, v2, c2);
break;
case 't':
// FIXME: This is not parallelizable.
if (frnr == 0)
{
copy_rvec(v1, vt0_[g][n]);
}
copy_rvec(vt0_[g][n], v2);
break;
case 'z':
c1[XX] = c1[YY] = 0.0;
break;
case 's':
if (pbc)
{
pbc_dx(pbc, c1, c2, v2);
}
else
{
rvec_sub(c1, c2, v2);
}
break;
default:
GMX_THROW(InternalError("invalid -g2 value"));
}
angle = gmx_angle(v1, v2);
break;
default:
GMX_THROW(InternalError("invalid -g1 value"));
}
/* TODO: Should we also calculate distances like g_sgangle?
* Could be better to leave that for a separate tool.
real dist = 0.0;
if (bDumpDist_)
{
if (pbc)
{
rvec dx;
pbc_dx(pbc, c2, c1, dx);
dist = norm(dx);
}
else
{
dist = sqrt(distance2(c1, c2));
}
}
*/
dh.setPoint(n, angle * RAD2DEG);
}
}
dh.finishFrame();
}