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leeminardi
en respuesta a: jcsteele560

So the lines as a group can rotate!!!  I thought this was a surveying problem where the bearing (angle) was fixed.

 

The solution is quite easy with AutoCAD's parametric constraints.

s1.JPG

  1. Place a Fix constraint on the 3 points
  2. Place angle dimensions between two sets of the lines.  Note, in the image below I added a reference dimension (29°) to show the rotation angle after all constraints have been applied.
    s2.JPG


  3. Place coincident constraints
    1. between the end of line 1 and line 2 (where they intersect)
    2. between the end of line 1 and line 3
    3. between the free end of line 1 and point 1
    4. between the free end of line 2 and point 2
      s3.JPG
  4. And finally between the free end of line 3 and point 3

s4.JPG

 

Note, the three lines have been rotated approximately 4°.  Quick properties will show many decimal places.

 

 

lee.minardi