Thought::Thought(int id, QSettings &s, QObject *parent)
: QObject(parent)
, m_title(s.value("title", "Unknown").toString())
, m_description(s.value("thought", m_title).toString())
, m_effect(s.value("value", 0).toInt())
, m_subtype(s.value("subthoughts_type",-1).toInt())
, m_id(id)
{
if(m_effect == 0){
m_color = c_neu();
}
else if(m_effect > 0){
m_color = c_pos();
}else{
m_color = c_neg();
}
//-1000 to +1000
//(x - from_min) * (to_max - to_min) / (from_max - from_min) + to_min
int alpha = (((m_effect + 50) * (255-75)) / 100) + 75;
if(alpha > 255)
alpha = 255;
else if(alpha < 0)
alpha = 0;
if(m_effect < 0)
alpha = 255 - alpha;
m_color.setAlpha(alpha);
}
/**
* \brief Expand pole product
* \param c resulting filter coefficients
* \param poles pole locations
* \param K number of poles
* \ingroup vyv_gaussian
*
* This routine expands the product to obtain the filter coefficients:
* \f[ \prod_{k=0}^{K-1}\frac{\mathrm{poles}[k]-1}{\mathrm{poles}[k]-z^{-1}}
= \frac{c[0]}{1+\sum_{k=1}^K c[k] z^{-k}}. \f]
*/
static void expand_pole_product(double *c, const complex4c *poles, int K)
{
complex4c denom[VYV_MAX_K + 1];
int k, j;
assert(K <= VYV_MAX_K);
denom[0] = poles[0];
denom[1] = make_complex(-1, 0);
for (k = 1; k < K; ++k)
{
denom[k + 1] = c_neg(denom[k]);
for (j = k; j > 0; --j)
denom[j] = c_sub(c_mul(denom[j], poles[k]), denom[j - 1]);
denom[0] = c_mul(denom[0], poles[k]);
}
for (k = 1; k <= K; ++k)
c[k] = c_div(denom[k], denom[0]).real;
for (c[0] = 1, k = 1; k <= K; ++k)
c[0] += c[k];
return;
}
static Py_complex
c_asin(Py_complex x)
{
/* -i * log[(sqrt(1-x**2) + i*x] */
const Py_complex squared = c_prod(x, x);
const Py_complex sqrt_1_minus_x_sq = c_sqrt(c_diff(c_one, squared));
return c_neg(c_prodi(c_log(
c_sum(sqrt_1_minus_x_sq, c_prodi(x))
) ) );
}
static Py_complex
c_acos(Py_complex x)
{
return c_neg(c_prodi(c_log(c_sum(x,c_prod(c_i,
c_sqrt(c_diff(c_one,c_prod(x,x))))))));
}
