Rotary Gauges

Discuss issues and ideas you have to configuring displays with PowerVision
dberezowski
Posts: 65
Joined: Wed Sep 08, 2010 4:03 pm

Rotary Gauges

Post by dberezowski » Wed Dec 21, 2011 2:56 pm

I have three questions:

1. I need to be able to display a rotary gauge that has a needle that indicates the degrees in a circle. It has to be able to cross the boundary from 359.9 to 0 degrees and vice-versa. Is there a way to do this?

2. When I defined a rotary gauge which spanned from 0 to 360 with major markers every 15, it displayed 360 on top of the 0. I tried changing it from 0 to 359.9 but then it displayed 359.something over the 0. How can I get it to not display 360?

3. Is there a way to display a needle that goes through the hub? Imagine a needle whose pivot point is not one end of the needle.
highlandranger
Posts: 3
Joined: Fri Aug 05, 2011 3:17 pm

Re: Rotary Gauges

Post by highlandranger » Tue Jan 03, 2012 9:44 am

The way I would do this is to remove the labels from the rotary gauge and place text widgets where you want to display the numbers on the gauge. As for having a needle that goes "thru" the center... I would place two rotary gauges, one on top of the other. You would also have to setup a unit conversion that would subtract 180 from the DEG unit. Then create a second rotary gauge that would use the DEG-180 unit. That way the second gauge would display the bottom part of the needle at exactly opposite of the first needle.
dberezowski
Posts: 65
Joined: Wed Sep 08, 2010 4:03 pm

Re: Rotary Gauges

Post by dberezowski » Fri Feb 17, 2012 12:59 pm

Great suggestion but I found that it didn't quite work. For some reason the zero degree major tick mark did not display. I found that I had to add a third gauge. Also if you do chose to have a background or image, the other two gauges need to be on top of the one that does.

Gauge1. Major and minor tick marks with needle. Everything else is transparent. Angle range 0 to 360. Visually, in PowerVisionStudio it appears that the zero degree major tick mark will display but it won't.

Gauge2. Numbers only. Everything else is transparent. The angle range must NOT include 360 else it will display display 360 and we do not want that. Let's assume the last number we want to display is 270.

Gauge3. Major and minor tick marks from 270 to 360 with NO needle. Everything else is transparent. For whatever reason this is required to get the zero degree major tick mark to appear. The number of major tick marks should be 1/4 of the ones specified in gauge 1 plus one more. The number of minor tick marks should be 1/4 of the ones specified in gauge 1.