void PointerCoordinates::draw(StelCore *core)
{
if (!isEnabled())
return;
const StelProjectorP prj = core->getProjection(StelCore::FrameJ2000, StelCore::RefractionAuto);
StelPainter sPainter(prj);
sPainter.setColor(textColor[0], textColor[1], textColor[2], 1.f);
font.setPixelSize(getFontSize());
sPainter.setFont(font);
QPoint p = QCursor::pos(); // get screen coordinates of mouse cursor
Vec3d mousePosition;
float wh = prj->getViewportWidth()/2; // get half of width of the screen
float hh = prj->getViewportHeight()/2; // get half of height of the screen
float mx = p.x()-wh; // point 0 in center of the screen, axis X directed to right
float my = p.y()-hh; // point 0 in center of the screen, axis Y directed to bottom
// calculate position of mouse cursor via position of center of the screen (and invert axis Y)
prj->unProject(prj->getViewportPosX()+wh+mx, prj->getViewportPosY()+hh+1-my, mousePosition);
double dec_j2000, ra_j2000;
StelUtils::rectToSphe(&ra_j2000,&dec_j2000,mousePosition); // Calculate RA/DE (J2000.0) and show it...
QString coordsText = QString("%1/%2").arg(StelUtils::radToHmsStr(ra_j2000, true)).arg(StelUtils::radToDmsStr(dec_j2000, true));
sPainter.drawText(getCoordinatesPlace(coordsText).first, getCoordinatesPlace(coordsText).second, coordsText);
}
void PointerCoordinates::draw(StelCore *core)
{
if (!isEnabled())
return;
const StelProjectorP prj = core->getProjection(StelCore::FrameJ2000, StelCore::RefractionAuto);
StelPainter sPainter(prj);
sPainter.setColor(textColor[0], textColor[1], textColor[2], 1.f);
font.setPixelSize(getFontSize());
sPainter.setFont(font);
QPoint p = StelMainView::getInstance().getMousePos(); // get screen coordinates of mouse cursor
Vec3d mousePosition;
float wh = prj->getViewportWidth()/2.; // get half of width of the screen
float hh = prj->getViewportHeight()/2.; // get half of height of the screen
float mx = p.x()-wh; // point 0 in center of the screen, axis X directed to right
float my = p.y()-hh; // point 0 in center of the screen, axis Y directed to bottom
// calculate position of mouse cursor via position of center of the screen (and invert axis Y)
// If coordinates are invalid, don't draw them.
bool coordsValid=false;
coordsValid = prj->unProject(prj->getViewportPosX()+wh+mx, prj->getViewportPosY()+hh+1-my, mousePosition);
{ // Nick Fedoseev patch
Vec3d win;
prj->project(mousePosition,win);
float dx = prj->getViewportPosX()+wh+mx - win.v[0];
float dy = prj->getViewportPosY()+hh+1-my - win.v[1];
coordsValid = prj->unProject(prj->getViewportPosX()+wh+mx+dx, prj->getViewportPosY()+hh+1-my+dy, mousePosition);
}
if (!coordsValid)
return;
bool withDecimalDegree = StelApp::getInstance().getFlagShowDecimalDegrees();
bool useSouthAzimuth = StelApp::getInstance().getFlagSouthAzimuthUsage();
QString coordsSystem, cxt, cyt;
double cx, cy;
switch (getCurrentCoordinateSystem())
{
case RaDecJ2000:
{
StelUtils::rectToSphe(&cx,&cy,mousePosition); // Calculate RA/DE (J2000.0) and show it...
coordsSystem = qc_("RA/Dec (J2000.0)", "abbreviated in the plugin");
if (withDecimalDegree)
{
cxt = StelUtils::radToDecDegStr(cx, 5, false, true);
cyt = StelUtils::radToDecDegStr(cy);
}
else
{
cxt = StelUtils::radToHmsStr(cx, true);
cyt = StelUtils::radToDmsStr(cy, true);
}
break;
}
case RaDec:
{
StelUtils::rectToSphe(&cx,&cy,core->j2000ToEquinoxEqu(mousePosition)); // Calculate RA/DE and show it...
coordsSystem = qc_("RA/Dec", "abbreviated in the plugin");
if (withDecimalDegree)
{
cxt = StelUtils::radToDecDegStr(cx, 5, false, true);
cyt = StelUtils::radToDecDegStr(cy);
}
else
{
cxt = StelUtils::radToHmsStr(cx, true);
cyt = StelUtils::radToDmsStr(cy, true);
}
break;
}
case AltAzi:
{
StelUtils::rectToSphe(&cy,&cx,core->j2000ToAltAz(mousePosition, StelCore::RefractionAuto));
float direction = 3.; // N is zero, E is 90 degrees
if (useSouthAzimuth)
direction = 2.;
cy = direction*M_PI - cy;
if (cy > M_PI*2)
cy -= M_PI*2;
coordsSystem = qc_("Az/Alt", "abbreviated in the plugin");
if (withDecimalDegree)
{
cxt = StelUtils::radToDecDegStr(cy);
cyt = StelUtils::radToDecDegStr(cx);
}
else
{
cxt = StelUtils::radToDmsStr(cy);
cyt = StelUtils::radToDmsStr(cx);
}
break;
}
case Galactic:
{
StelUtils::rectToSphe(&cx,&cy,core->j2000ToGalactic(mousePosition)); // Calculate galactic position and show it...
coordsSystem = qc_("Gal. Long/Lat", "abbreviated in the plugin");
if (withDecimalDegree)
{
cxt = StelUtils::radToDecDegStr(cx);
cyt = StelUtils::radToDecDegStr(cy);
}
else
{
cxt = StelUtils::radToDmsStr(cx, true);
cyt = StelUtils::radToDmsStr(cy, true);
}
break;
}
case Ecliptic:
{
double lambda, beta;
StelUtils::rectToSphe(&cx,&cy,core->j2000ToEquinoxEqu(mousePosition));
StelUtils::equToEcl(cx, cy, core->getCurrentPlanet()->getRotObliquity(core->getJDE()), &lambda, &beta); // Calculate ecliptic position and show it...
if (lambda<0) lambda+=2.0*M_PI;
coordsSystem = qc_("Ecl. Long/Lat", "abbreviated in the plugin");
if (withDecimalDegree)
{
cxt = StelUtils::radToDecDegStr(lambda);
cyt = StelUtils::radToDecDegStr(beta);
}
else
{
cxt = StelUtils::radToDmsStr(lambda, true);
cyt = StelUtils::radToDmsStr(beta, true);
}
break;
}
case EclipticJ2000:
{
double lambda, beta;
StelUtils::rectToSphe(&cx,&cy, mousePosition);
StelUtils::equToEcl(cx, cy, core->getCurrentPlanet()->getRotObliquity(2451545.0), &lambda, &beta); // Calculate ecliptic position and show it...
if (lambda<0) lambda+=2.0*M_PI;
coordsSystem = qc_("Ecl. Long/Lat (J2000.0)", "abbreviated in the plugin");
if (withDecimalDegree)
{
cxt = StelUtils::radToDecDegStr(lambda);
cyt = StelUtils::radToDecDegStr(beta);
}
else
{
cxt = StelUtils::radToDmsStr(lambda, true);
cyt = StelUtils::radToDmsStr(beta, true);
}
break;
}
case HourAngle:
{
Vec3d v = core->j2000ToAltAz(mousePosition, StelCore::RefractionAuto);
StelUtils::rectToSphe(&cx,&cy,Mat4d::zrotation(-core->getLocalSiderealTime())*core->altAzToEquinoxEqu(v, StelCore::RefractionOff));
cx = 2.*M_PI-cx;
coordsSystem = qc_("HA/Dec", "abbreviated in the plugin");
if (withDecimalDegree)
{
double ha_sidereal = cx*12/M_PI;
if (ha_sidereal>24.)
ha_sidereal -= 24.;
cxt = QString("%1h").arg(ha_sidereal, 0, 'f', 5);
cyt = StelUtils::radToDecDegStr(cy);
}
else
{
cxt = StelUtils::radToHmsStr(cx);
cyt = StelUtils::radToDmsStr(cy);
}
break;
}
}
QString coordsText = QString("%1: %2/%3").arg(coordsSystem).arg(cxt).arg(cyt);
sPainter.drawText(getCoordinatesPlace(coordsText).first, getCoordinatesPlace(coordsText).second, coordsText);
}
