BLEND Command

BLEND Command

Creates a spline in the gap between two selected lines or curves. 

Select each object near an endpoint. The shape of the resulting spline depends on the specified continuity. The lengths of the selected objects remain unchanged. 

Valid objects include lines, arcs, elliptical arcs, helixes, open polylines, and open splines. 

The following prompts are displayed: 
Select First Object or Continuity
Selects a line or open curve near the end where the spline should start. 
Second Object
Selects another line or open curve near the end where the spline should end. 

Continuity

Specify one of two types of blends. 
Tangent
Creates a degree 3 spline with tangency (G1) continuity to the selected objects at their endpoints. 
Smooth
Creates a degree 5 spline with curvature (G2) continuity to the selected objects at their endpoints. 

If you use the Smooth option, do not switch the display from control vertices to fit points. This action changes the spline to degree 3, which will change the shape of the spline. 

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