本文整理汇总了C++中Pos::getLatY方法的典型用法代码示例。如果您正苦于以下问题：C++ Pos::getLatY方法的具体用法？C++ Pos::getLatY怎么用？C++ Pos::getLatY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Pos的用法示例。
在下文中一共展示了Pos::getLatY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: getScreenRotation
float MapScale::getScreenRotation(float angle, const atools::geo::Pos& position, float zoomDistanceMeter) const
{
if(viewport != nullptr && viewport->projection() == Marble::Spherical && zoomDistanceMeter > 50)
{
// Get screen coordinates or origin
Marble::GeoDataCoordinates coords(position.getLonX(), position.getLatY(), 0., GeoDataCoordinates::Degree);
bool globeHidesPoint = false, globeHidesPointEnd = false;
double x = 0., y = 0., xEnd = 0., yEnd = 0.;
bool visible = viewport->screenCoordinates(coords, x, y, globeHidesPoint);
if(globeHidesPoint || !visible)
// Not visible
return map::INVALID_COURSE_VALUE;
// Use a tenth of the zoom distance which results in a screen length of 15 - 30 pixel
// Calculate endpoint in global coordinate system
Pos end = position.endpoint(zoomDistanceMeter / 10.f, angle);
end.normalize();
// Calculate screen coordinates of endpoint
Marble::GeoDataCoordinates endcoords(end.getLonX(), end.getLatY(), 0., GeoDataCoordinates::Degree);
viewport->screenCoordinates(endcoords, xEnd, yEnd, globeHidesPointEnd);
if(!globeHidesPointEnd)
{
QLineF line(x, y, xEnd, yEnd);
// qDebug() << Q_FUNC_INFO << line.length();
if(line.length() > 5.)
angle = atools::geo::normalizeCourse(
static_cast<float>(atools::geo::angleFromQt(line.angle())));
else
return map::INVALID_COURSE_VALUE;
}
else
// Hide if endpoint is not visible
return map::INVALID_COURSE_VALUE;
}
return angle;
}