If you enter a constraint for some geometry which is already constrained by another constrained object you will see a message like the one below.
In this case, the Coordinate constraint was already determined by the other two sides and an angle constraint on the triangle. There are three ways of dealing with this problem:
| 1. | Hit the Cancel button to leave the drawing as it was without the new constraint. |
| 2. | Click the first button, "Calculate the coordinates from other constraints" (the default choice). This is similar to the first choice, it eliminates the new constraint, but also calculates the selected geometry’s value. In this case, the coordinates of point C would be calculated and displayed. |
| 3. | If you choose "Relax other constraints so the coordinate is independent", this will keep the new constraint you just entered and allow you to eliminate one of the red highlighted constraints (figure 1). When you select one of these constraints (in figure 2 below we clicked on θ), the highlight changes to gray. After you click Ok, the selected constraint, the angle θ in this case, is calculated and displayed (figure 3). |
Figure 1
Figure 2
Figure 3