Translations:Sketcher ConstrainCoincident/43/en

The two constrained items of a Coincident constraint must be start point or end point vertices, or center points of arcs, circles or ellipses. Some combinations which are not possible with a coincident constraint can be emulated using other constraints:
 * The Sketcher_ConstrainSymmetric.svg Symmetric constraint can be used to place a start point, end point or center point on the midpoint of a straight line.
 * A midpoint-to-midpoint placement of two straight lines can be achieved by creating a new Sketcher_CreatePoint.svg Point and using two Sketcher_ConstrainSymmetric.svg Symmetric constraints so that it lies on the midpoint of both lines.
 * A vertex can be constrained to lie along an edge using a Sketcher_ConstrainPointOnObject.svgOnObject constraint. Note that with this constraint, the point can lie anywhere on the full extension of a segment or curve (i.e. also before the start point or beyond the end point).
 * A collinear placement of two straight lines can be obtained by applying a Sketcher_ConstrainTangent.svg Tangent constraint to them, or by combining a Sketcher_ConstrainPointOnObject.svg PointOnObject constraint and a Sketcher_ConstrainParallel.svg Parallel constraint.
 * Two edges can be made identical by using two Sketcher_ConstrainCoincident.svg Coincident constraints, one for each pair of extremities.
 * Two circles can be made identical by using a Sketcher_ConstrainCoincident.svg Coincident constraint to merge the centers, and applying an Sketcher_ConstrainEqual.svg Equal constraint to their edges. For arcs, this will ensure both arcs are part of the same circle, while allowing them to have different start and end points.