## Measuring Arc Angles

Use this forum to ask questions about how to do things in QCAD 2.1/2.2.

Moderator: andrew

### Measuring Arc Angles

How do I measure the angle between an arc and an intersecting line? I know the angle will be constantly changing depending on where abouts I am measuring on the arc but is it possible?

Also is it possible to put onto my drawing the total length of an entity. In the measure tools I used the command and it worked fine but just shows the total length in the console. Is there a similar tool in the dimension menu?

I wanted to put on my drawing the circumference of an arc I have drawn. At the moment I have just had to copy the measurement from the console and put the text on the drawing manually.

Thanks
Dave
Newbie Member

Posts: 8
Joined: Tue Apr 17, 2007 11:07 pm

### Re: Measuring Arc Angles

Dave wrote:How do I measure the angle between an arc and an intersecting line? I know the angle will be constantly changing depending on where abouts I am measuring on the arc but is it possible?

You will have to draw a tangent to the arc and through the intersection first and then measure the angle between the two lines.

The easiest way to draw the tangent:
- choose Draw - Line - Relative Angle
- click circle or arc
- enter '90' for the angle and some convenient length
- place the tangent at the intersection

Dave wrote:Also is it possible to put onto my drawing the total length of an entity. In the measure tools I used the command and it worked fine but just shows the total length in the console. Is there a similar tool in the dimension menu?

I wanted to put on my drawing the circumference of an arc I have drawn. At the moment I have just had to copy the measurement from the console and put the text on the drawing manually.

Thanks

There is probably no easier way to do that at this point.

andrew

Posts: 4012
Joined: Fri Mar 30, 2007 6:07 am

Thank you very much that works very well
Dave
Newbie Member

Posts: 8
Joined: Tue Apr 17, 2007 11:07 pm