[Geometric constraints] can be applied onto the sketch design in Draftsight, making it familiar to the workflow in Solidworks.

**Coincident:** Defines a coincident geometric constraint to two points on entities or constrains a point on an entity to an entity.

**Collinear:** Causes Lines and linear PolyLine segments to be collinear.

**Concentric:** Causes the center points of Arcs, Circles, Ellipses, or elliptical Arcs to coincide.

**Equal:** Constrains Lines to the same length, or Arcs and Circles to the same radius.

**Fix:** Causes points on entities and entities to maintain fixed positions.

**Horizontal:** Causes Lines and linear PolyLine segments or pairs of points on entities to be parallel to the X-axis of the current coordinate system.

**Perpendicular:** Causes two Lines or linear PolyLine segments to be perpendicular to each other.

**Parallel:** Causes two Lines or linear PolyLine segments to be parallel to each other.

**Tangent:** Causes one entity to be tangent to another.

**Smooth:** Causes a Spline to constitute fluid geometric continuity with another Spline, Arc, Line, or PolyLine.

**Symmetric:** Causes two entities or constraint points on entities to lie symmetrically with respect to a symmetry line.

**Vertical:** Causes Lines and linear PolyLine segments or pairs of points on entities to be parallel to the Y-axis of the current coordinate system.

[Dimensional Constraints] can also be defined to control the distance values for entities or between constraint points on entities. The following options are available:

**Aligned:** Constrains the direct distance between two points on entities.

**Angular:** Constrains the angle between three constraint points on entities or between two Lines or PolyLine segments, or to constrain the total angle of an Arc or curved PolyLine segment.

**Diameter:** Constrains the diameter of a Circle, Arc, or curved PolyLine segment.

**Horizontal:** Constrains the horizontal distance between two points on entities.

**Linear:** Constrains the horizontal or vertical distance between two defining points on entities.

**Radial:** Constrains the radius of a Circle, Arc, or curved PolyLine segment.

**Vertical:** Constrains the vertical distance between two points on entities.