11-19-2017
01:44 PM
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11-19-2017
01:44 PM
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.
- Place a Fix constraint on the 3 points
- 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.
- Place coincident constraints
- between the end of line 1 and line 2 (where they intersect)
- between the end of line 1 and line 3
- between the free end of line 1 and point 1
- between the free end of line 2 and point 2
- And finally between the free end of line 3 and point 3
Note, the three lines have been rotated approximately 4°. Quick properties will show many decimal places.
lee.minardi