What is an open or closed vector?

Vectors can be open or closed.

  • An open vector is a vector that does not join back with itself and the easiest example to visualize is a line.

  • A closed vector is one that joins with itself to form a shape with good examples being a circle or rectangle.

Sometimes you can have what looks to be a closed vector but is in fact an open vector. This can cause problems when setting up toolpaths, as some toolpaths treat open vectors different from closed vectors.

There are two quick ways to find whether a vector shape is open or closed.

  1. You can use Edit > Select All Open Vectors and see which ungrouped vectors become highlighted OR 
  2. Select the vectors you want to check and use the Join Open Vectors tool.  This tool will tell you how many of the selected vectors are open and how many are closed.