Was wondering if anyone can help me draw two arcs (curves) in AutoCAD
2004. Here is the information I have for the first curve
Radius03.75' Length5.38' Chord5.25' Bearing=n85d15'34" w. The
second curve is radius0.00' length 46.84' chord 42.23' bearing
n44d33'40" w. I am sure you can tell I am a novice. So any help would
be appreciated. Thanks
On 23 Jan, 22:13, firstname.lastname@example.org wrote:
Well, here's how I'd do it:
Draw a circle (C1) of the specified radius.
Draw another circle (C2) with its centrepoint on a quadrant of the
first circle and radius equal to the specified chord length.
Draw a line from the centre of circle C2 to one of the points at which
it intersects circle C1. This is the chord.
Delete circle C2 and trim circle C1 to the chord.
I haven't use degrees minutes and seconds in a long, long time - but I
think these are arcminutes and arcseconds measured counterclockwise
If so, for each bearing, draw a vertical line and rotate it by it's
southernmost handle through 85.259 & 44.561 degrees respectively. You
should be able to figure out how to align the chords with these
Here's another way:
Draw a line with a length of 115.38' with the bearing noted.
pick first point
for second point, type this: @155.38<n85d15'34"w then hit enter. Then,
draw a circle at each end with a radius of 1103.75'. Where these two
circles intersect, draw a third circle with the same radius. Erase the
first two and trim the third using your original line at the cutting
edge. You'll have to look at what you are replicating to make sure
which side of the line to trim on.
I like to use polar coordinates, especially with civil engineering
situations. In the line n85d15'34"w, it's read as North 85 degrees, 15
minutes, 34 seconds west. Hope this helps.
Polytechforum.com is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here.
All logos and trade names are the property of their respective owners.