Display two needles in a single QwtDial

[abraxas]

Hi!

This question has been brought up earlier on, but it has not been properly answered. How do I display two needles in a single QwtDial? Can anybody help me with this?
The only properties I am interested in is to be able to change the color and value of the two needles.


I made the QwtDial in Qt Designer, and this is how I make the single needle in QwtDial:

QwtDialSimpleNeedle *needle = new QwtDialSimpleNeedle(QwtDialSimpleNeedle::Arrow, true, Qt::red, QColor(Qt::gray).light(130));
		 MainEngineRight->setRange(-1.0,1.,0.01);
		 MainEngineRight->setNeedle(needle);

QwtDialSimpleNeedle *needle = new QwtDialSimpleNeedle(QwtDialSimpleNeedle::Arrow, true, Qt::red, QColor(Qt::gray).light(130));
		 MainEngineRight->setRange(-1.0,1.,0.01);
		 MainEngineRight->setNeedle(needle);

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Best regards

[sonulohani]

Why are you posting it again and again? If somebody knows, then they had already posted the answer.

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Added after 10 minutes:

See the dials example in qwt

[Uwe]

How do I display two needles in a single QwtDial?

QwtAnalogClock is a QwtDial with 3 needles - check its implementation.

Uwe

[abraxas]

sonulohani: I did not create the original post, and that post is several years old. I could of course have brought the old topic back alive.

Uwe: Thanks for the tip. I will check the implementation.