本文整理汇总了C++中KisPaintInformation::setPressure方法的典型用法代码示例。如果您正苦于以下问题：C++ KisPaintInformation::setPressure方法的具体用法？C++ KisPaintInformation::setPressure怎么用？C++ KisPaintInformation::setPressure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KisPaintInformation的用法示例。
在下文中一共展示了KisPaintInformation::setPressure方法的1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: paint
//.........这里部分代码省略.........
qreal distanceSum = 0.0;
qreal scaleSum = 0.0;
qreal pressure = 0.0;
qreal baseRate = 0.0;
Q_ASSERT(m_d->history.size() == m_d->distanceHistory.size());
for (int i = m_d->history.size() - 1; i >= 0; i--) {
qreal rate = 0.0;
const KisPaintInformation nextInfo = m_d->history.at(i);
double distance = m_d->distanceHistory.at(i);
Q_ASSERT(distance >= 0.0);
qreal pressureGrad = 0.0;
if (i < m_d->history.size() - 1) {
pressureGrad = nextInfo.pressure() - m_d->history.at(i + 1).pressure();
const qreal tailAgressiveness = 40.0 * m_d->smoothingOptions->tailAggressiveness();
if (pressureGrad > 0.0 ) {
pressureGrad *= tailAgressiveness * (1.0 - nextInfo.pressure());
distance += pressureGrad * 3.0 * sigma; // (3 * sigma) --- holds > 90% of the region
}
}
if (gaussianWeight2 != 0.0) {
distanceSum += distance;
rate = gaussianWeight * exp(-distanceSum * distanceSum / (2 * gaussianWeight2));
}
if (m_d->history.size() - i == 1) {
baseRate = rate;
} else if (baseRate / rate > 100) {
break;
}
scaleSum += rate;
x += rate * nextInfo.pos().x();
y += rate * nextInfo.pos().y();
if (m_d->smoothingOptions->smoothPressure()) {
pressure += rate * nextInfo.pressure();
}
}
if (scaleSum != 0.0) {
x /= scaleSum;
y /= scaleSum;
if (m_d->smoothingOptions->smoothPressure()) {
pressure /= scaleSum;
}
}
if ((x != 0.0 && y != 0.0) || (x == info.pos().x() && y == info.pos().y())) {
info.setPos(QPointF(x, y));
if (m_d->smoothingOptions->smoothPressure()) {
info.setPressure(pressure);
}
m_d->history.last() = info;
}
}
}
if (m_d->smoothingOptions->smoothingType() == KisSmoothingOptions::SIMPLE_SMOOTHING
|| m_d->smoothingOptions->smoothingType() == KisSmoothingOptions::WEIGHTED_SMOOTHING)
{
// Now paint between the coordinates, using the bezier curve interpolation
if (!m_d->haveTangent) {
m_d->haveTangent = true;
m_d->previousTangent =
(info.pos() - m_d->previousPaintInformation.pos()) /
qMax(qreal(1.0), info.currentTime() - m_d->previousPaintInformation.currentTime());
} else {
QPointF newTangent = (info.pos() - m_d->olderPaintInformation.pos()) /
qMax(qreal(1.0), info.currentTime() - m_d->olderPaintInformation.currentTime());
paintBezierSegment(m_d->olderPaintInformation, m_d->previousPaintInformation,
m_d->previousTangent, newTangent);
m_d->previousTangent = newTangent;
}
m_d->olderPaintInformation = m_d->previousPaintInformation;
m_d->strokeTimeoutTimer.start(100);
}
else if (m_d->smoothingOptions->smoothingType() == KisSmoothingOptions::NO_SMOOTHING) {
paintLine(m_d->previousPaintInformation, info);
}
if (m_d->smoothingOptions->smoothingType() == KisSmoothingOptions::STABILIZER) {
m_d->stabilizedSampler.addEvent(info);
} else {
m_d->previousPaintInformation = info;
}
if(m_d->airbrushingTimer.isActive()) {
m_d->airbrushingTimer.start();
}
}