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OP-102: of course I did not get it right the first time... Better now?

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git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1147 ebee16cc-31ac-478f-84a7-5cbb03baadba
This commit is contained in:
edouard 2010-07-20 15:01:22 +00:00 committed by edouard
parent 6ef51b0c4d
commit 9410aa80fa
1 changed files with 10 additions and 9 deletions
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19
ground/src/plugins/pfd/pfdgadgetwidget.cpp
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@ -804,7 +804,6 @@ void PFDGadgetWidget::moveNeedles()
// to it. That way you always get the "shorter difference" to turn in.
//////
if (headingValue != headingTarget) {
double headingOffset = 0;
double headingDiff;
if ((abs((headingValue-headingTarget)*10) > 5)) {
headingDiff = (headingTarget - headingValue)/5;
@ -812,17 +811,19 @@ void PFDGadgetWidget::moveNeedles()
headingDiff = headingTarget-headingValue;
dialCount--;
}
double threshold = -180*compassBandWidth/540;
double threshold = 180*compassBandWidth/540;
// Note: rendering can jump oh so very slightly when crossing the 180 degree
// boundary, should not impact actual useability of the display.
if ((headingValue < threshold) && ((headingValue+headingDiff)>=threshold)) {
// We went over 180°: activate a -360 degree offset
headingOffset = 2*threshold;
} else if ((headingValue >= threshold) && ((headingValue+headingDiff)<threshold)) {
// We went under 180°: remove the -360 degree offset
headingOffset = -2*threshold;
if ((headingValue+headingDiff)>=threshold) {
// We went over 180°: activate a -360 degree offset
headingDiff -= 2*threshold;
headingTarget -= 2*threshold;
} else if ((headingValue+headingDiff)<-threshold) {
// We went under -180°: remove the -360 degree offset
headingDiff += 2*threshold;
headingTarget += 2*threshold;
}
QPointF opd = QPointF(headingDiff+headingOffset,0);
QPointF opd = QPointF(headingDiff,0);
m_compassband->setTransform(QTransform::fromTranslate(opd.x(),opd.y()), true);
headingValue += headingDiff;
} else {