The following constraints are available in SISCAD-P:
- COLLINEARITY
- CONCENTRICITY
- DIAMETER
- DISTANCE
- FIXING
- HORIZONTALITY
- PARALLELISM
- PERPENDICULAR
- POSOFCENTER
- POSOFPOINT
- RADIUS
- SYMMETRY
- TANGENTIALITY
- VERTICALITY
The individual constraints are described as follows.
COLLINEARITY
The constraint to be collinear is assigned to two circles or circular arcs. The
radii of these circles or circular arcs are not determined with this constraint.
CONCENTRICITY
The constraint to be concentric is assigned to two circles or circular arcs. The
radii of these circles or circular arcs are not determined with this constraint.
DIAMETER
The constraint to have a defined diameter is assigned to a circle or circular
arc. The value of the diameter is determined with an existent dimensional
object.
DISTANCE
The constraint to have a defined distance to each other is assigned to two
geometrical objects. The value of the distance is determined with an existent
dimensional object. Any other position of the objects to each other is not
determined with this constraint.
FIXING
A geometrical object is fixed on its current position. Points will be fixed on
the corresponding co-ordinate position, lines on the corresponding carrier line
and circles on the corresponding carrier circle. The detailed position of
circular arcs as well as finite and single infinite lines is not determined
with this constraint.
HORIZONTALITY
The constraint to be horizontal is assigned to a line. The detailed position of
this line is not determined with this constraint.
PARALLELISM
The constraint to be parallel is assigned to two lines. Which other position or
distance they have to each other is not determined with this constraint.
PERPENDICULAR
The constraint to be perpendicular to each other is assigned to two circles or
to one line and one circle. Any other position of the objects to each other is
not determined with this constraint.
POSOFCENTER
The constraint to lie on the center of a finite line is assigned to a point.
POSOFPOINT
The constraint to lie on another geometrical object is assigned to a point.
Suitable geometrical objects are points or lines or circles. The detailed
position of the point on the other object is not determined with this
constraint.
RADIUS
The constraint to have a defined radius is assigned to a circle or circular
arc. The value of the radius is determined with an existent dimensional object.
SYMMETRY
The constraint to be symmetrical with respect to a axis of symmetry is assigned
to two objects of the same kind.
TANGENTIALITY
The constraint to be tangential to each other is assigned to two circles or to
one circle and a line. Which other position they have to each other is not
determined with this constraint.
VERTICALITY
The constraint to be vertical is assigned to a line. Any other position of the
line is not determined with this constraint.