double dTr(double x,double a) {
double left_fac, right_fac;
double norm, xi,res;
xi = (x-a) / scaleH(a);
// norm = planet.eps * a*M_PI*(planet.mp*params.mth)*(planet.mp*params.mth);
norm = planet.eps * (planet.mp*params.mth)*(planet.mp*params.mth)/2.;
if (planet.symmetric_torque) {
right_fac = norm*pow(a/fmax(scaleH(x),fabs(x-a)),4);
}
else {
right_fac = norm*pow(x/fmax(scaleH(x),fabs(x-a)),4);
}
left_fac = -norm*pow(x/fmax(scaleH(x),fabs(x-a)),4);
left_fac *= (1-smoothing(xi, -planet.c, planet.delta));
right_fac *= smoothing(xi,-planet.c, planet.delta)*smoothing(xi,planet.c,planet.delta);
res = left_fac*(1-planet.onesided) + right_fac;
return res;
}
void ScreenPainter::setupState(bool rect)
{
if (selected() && rect)
{
// we are drawing a selection rect
QColor color = qApp->palette().color(QPalette::Active, QPalette::Highlight);
m_painter->setBrush(color);
m_painter->setPen(color, strokeWidth(), Qt::SolidLine, Qt::FlatCap, Qt::MiterJoin);
}
else if (selected())
{
// we are drawing selected text
QColor color = qApp->palette().color(QPalette::Active, QPalette::HighlightedText);
m_painter->setBrush(color);
m_painter->setPen(color, strokeWidth(), Qt::SolidLine, Qt::FlatCap, Qt::MiterJoin);
}
else
{
QColor tmp;
if (m_fillColor != fillColor())
{
m_item->SetQColor(&tmp, fillColor().color, fillColor().shade);
m_fillQColor = tmp;
m_fillColor = fillColor();
}
if (m_strokeColor != strokeColor())
{
m_item->SetQColor(&tmp, strokeColor().color, strokeColor().shade);
m_fillStrokeQColor = tmp;
m_strokeColor = strokeColor();
}
m_painter->setBrush(m_fillQColor);
m_painter->setPen(m_fillStrokeQColor, strokeWidth(), Qt::SolidLine, Qt::FlatCap, Qt::MiterJoin);
}
m_painter->translate(x(), y());
if (scaleH() != 1.0 || scaleV() != 1.0)
m_painter->scale(scaleH(), scaleV());
if (matrix() != QTransform())
{
m_painter->setWorldMatrix(matrix() * m_painter->worldMatrix());
}
}
