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Code Issues Releases Activity

OP-82 : Small bug correction where the heading scale could become offset if the heading jumped back and forth just around 180 degrees. Should be fixed now.

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git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@876 ebee16cc-31ac-478f-84a7-5cbb03baadba
This commit is contained in:
edouard 2010-06-23 21:45:56 +00:00 committed by edouard
parent d404b93fea
commit ee2e21e7e1
1 changed files with 6 additions and 8 deletions
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14
ground/src/plugins/pfd/pfdgadgetwidget.cpp
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@ -309,13 +309,10 @@ void PFDGadgetWidget::resizeEvent(QResizeEvent *event)
}
// Take an input value and rotate the dial accordingly
// Rotation is smooth, starts fast and slows down when
// Take an input value and move the elements accordingly.
// Movement is smooth, starts fast and slows down when
// approaching the target.
// We aim for a 0.5 degree precision.
//
// Note: this code is valid even if needle1 and needle2 point
// to the same element.
void PFDGadgetWidget::rotateNeedles()
{
int dialCount = 3;
@ -359,11 +356,12 @@ void PFDGadgetWidget::rotateNeedles()
dialCount--;
}
double threshold = -180*compassBandWidth/540;
// The below does not work 100% perfect yet, visually speaking...
if ((headingValue < threshold) && ((headingValue+headingDiff)>threshold)) {
// 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)) {
} else if ((headingValue >= threshold) && ((headingValue+headingDiff)<threshold)) {
// We went under 180°: remove the -360 degree offset
headingOffset = -2*threshold;
}