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The constraints of all objects are displayed in the graphic area when enabled constraint display mode. With the mode disabled, only the constraints of the selected object can be seen if the setup dialog The Display restriction icons for selected objects option is enabled.

For designating constraints in the graphic area, special icons are used. For some constraints, additional elements are also displayed — dashed lines, crosses, etc. The designations of constraints are provided in the table.


Constraint

Example

Comments

Horizontality

 

Verticality

 

Alignment

horizontal

Hatched horizontal segment connecting the aligned points

Alignment

vertical

Hatched horizontal segment connecting the aligned points

Point Coincidence

A location of the point coincidence is marked with a circle.

Point on curve

The location of the point on the curve is marked with a cross. If necessary, the curve is extended with a dashed line.

Curve midpoint

A location of the curve midpoint is marked with a crosshair.

Symmetry of Points

An additional dashed segment is shown, which joins the symmetrical points, and a square at the intersection of the segment with the symmetry axis. If necessary, the axis is extended with a dashed line to the square center.

Three points at right line

Additional segments are displayed, joining the points on the same straight line. Intersections of those segments with the centerline are marked by crosses.

The constraint is created automatically when constructing a centerline by the Auto Centerline.

Parallel

 

Perpendicular

An additional icon of right angle is shown at the intersection of objects. If necessary, the objects are extended with a dashed line

Collinear

An additional dashed line is shown, joining the closest ends of segments.

Bisector

 

Tangency

The tangency point is marked by a special icon. If necessary, the curves are extended up to the tangent point with a dashed line.

Equal Radius

 

Equal Length

 

Concentricity

An icon is placed near the center of concentric objects

Fixed Point

An icon is placed near a fixed point

Fixed length

 

Fixed angle

 

 

Fixed size

A rectangular frame is displayed around the dimension value.

The constraint icon is not shown in the graphics area.

If the dimension has a variable, it is shown in parentheses below the dimension value (for more details, see the section Notes of displaying dimensions with variables).

Projection link

End vertex projection

Icon Projection link is shown in the sketch next to the projection objects (curves, points), and the icon End vertex projection—  near the extreme points of the projection curves, if they are open. For information on projecting objects, see the section Projection mode objects to a sketch.

Projection

The icon is shown in the drawing next to projection designations.

 

Array by grid

The Array by grid icon is displayed next to each object in a parallelogram grid array.

for the source object

for a copy object

 

Array by concentric grid

The icon Array by concentric grid is shown next to each object in the array in a concentric grid and next to the center point of the array.

for the source object

for a copy object

for the center point of the array

See Also

Viewing objects affected by constraint

Incorrect constraints

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