Commands > B commands > 
BCPARAMETER
 
 
 
Quick Reference

Applies constraint parameters to selected objects, or converts dimensional constraints to parameter constraints.

Access Methods

Panel

 Ribbon: Block Editor contextual tab Dimensional panel

Summary

The BCPARAMETER command is used in the Block Editor. This command applies a constraint parameter to an object or between constraint points on object(s).

List of Prompts

The following prompts are displayed.

Enter an option [Linear/Horizontal/Vertical/Aligned/ANgular/Radial/Diameter/Convert] <last>: Specify an option

Linear

Button

 Ribbon: Block Editor contextual tab Dimensional panel Linear

Creates a horizontal or vertical constraint parameter based on the locations of the extension line origins and the location of the dimension line similar to the DIMLINEAR command.

Object

Selects an object instead of a constraint point. Press Enter or click the drop-down list to select the object.

Horizontal

Button

 Ribbon: Block Editor contextual tab Dimensional panel Horizontal

Constrains the X distance of a line or between two points on different objects. Valid objects include lines and polyline segments.

Object
Object

Vertical

Button

 Ribbon: Block Editor contextual tab Dimensional panel Vertical

Constrains the Y distance of a line or between two points on different objects. Valid objects include lines and polyline segments.

Object
Object

Aligned

Button

 Ribbon: Block Editor contextual tab Dimensional panel Aligned

Constrains the length of a line or the distance between two lines, a point on an object and a line, or two points on different objects.

Object
Object
Point & Line

Selects a point and a line object. The aligned constraint controls the distance between a point and the closest point on a line.

2Lines

Selects two line objects. The lines are made parallel and the aligned constraint controls the distance between the two lines.

Angular

Button

 Ribbon: Block Editor contextual tab Dimensional panel Angular

Constrains the angle between two lines or polyline segments. It is similar to an angular dimension.

3Point

Selects three valid constraint points on the object.

Valid Objects or Points

Characteristics

Pair of lines

Pair of polyline subobjects

Three constraint points

Arc
  • When you select two lines, the angle between the lines is constrained. The initial value always defaults to a value less than 180 degrees.
  • When you specify three constraint points, the following applies:
    • First point — angle vertex
    • Second and third points — endpoints of the angle
  • When you select an arc, a three-point angular constraint is created. The angle vertex is at the center of the arc and the angle endpoints of the arc are at the endpoints of the arc.

When you enter or edit an angle value that is either negative or is greater than 360 degrees, the number entered is stored for the expression (for example, 390), but the value displayed is based on the formatting of the units (for example, 30 if decimal degrees).

When an expression with variables evaluates to greater than 360 or less than -360, the constraint value is displayed in the Parameters Manager palette based on the units of the drawing.

Radial

Button

 Ribbon: Block Editor contextual tab Dimensional panel Radius

Creates a radial constraint parameter for a circle, arc, or polyline arc segment.

Valid Objects or Points

Characteristics

Circle

Arc

  • Constrains the radius of the circle or arc.

Diameter

Button

 Ribbon: Block Editor contextual tab Dimensional panel Diameter

Creates a diameter constraint parameter for a circle, arc, or polyline arc segment.

Valid Objects or Points

Characteristics

Circle

Arc

  • Constrains the diameter of the circle or arc.

Convert

 Ribbon: Block Editor contextual tab Dimensional panel Convert

Converts the dimensional constraints to constraint parameters.

Objects other than dimensional constraints are ignored and filtered from the selection set.

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