JOIN command

Joins 2D entities at their common endpoints.

BricsCAD Shape; BricsCAD Lite; BricsCAD Pro; BricsCAD Mechanical; BricsCAD BIM

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Description

Joins lines, lightweight and old-style 2D polylines, 3D polylines, arcs, elliptical arcs, polyarcs, splines, and helices at their common endpoints.

Note: The type of the resulting entity depends on the types of the input entities and on their coplanarity.

Method

Two 2D polylines are joined into a single:

  • 2D polyline- when they are coplanar.
  • 3D polyline- when they are not coplanar and if they are composed only of straight segments.
  • Spline- when they are not coplanar and if at least one of the polylines has a bulged (arc) segment.

A 2D polyline and a 3D polyline are joined into a single:

  • 2D polyline: when they are coplanar.
  • 3D polyline: when they are not coplanar and if the 2D polyline only has straight segments.
  • Spline: when they are not coplanar and if the 2D polyline has at least one arc segment.

A line and a circular arc (or a polyline with arcs) are joined into a single:

  • 2D polyline: when they are coplanar.
  • Spline: when they are not coplanar.

The following pairs of entities are joined into a spline:

  • Line and an elliptical arc.
  • Spline and another open entity, such as an elliptical arc or polyline.
  • Helix and another open entity, such as a line or arc.

Even when there are gaps between these entities, the command joins them into a single entity:

  • Collinear lines: joined into a single line.
  • Coplanar arcs (with same radii and center points): joined into an arc or a circle.
  • Coplanar elliptical arcs (with same major and minor axes): joined into an elliptical arc or ellipse.

Circular and elliptical arcs are joined in a counterclockwise direction starting from the source arc.

Note: Collinear means the entities lie in the same imaginary line. Coplanar means the entities lie in the same plane.