2.8.1.1.6.2.  Cut

Mark the outer (green = part) and inner contour (purple = holes) of the part, either as freehand line or with the option Activate border detection (mostly better).

For this you can use the tools Cut, Erase, Smooth and Pull:

  • Cut:

    1. At first choose green and mark the outer contour.

      Click on the edge to be marked and lead the mouse along the edge until you reach the starting point again.

      [Note]Note

      Pay attention to close the circle. As long as it is not really closed, no Preview will be displayed.

    2. Choose purple and mark the inner contour.

  • Erase: Erase only works at the end of a line (not between).

    Click on the end of the desired line and erase along the line with pressed mouse key.

    Before erasing

    Before erasing

    After erasing

    After erasing

  • Smooth:

    Line Points are moved to the expected average value between previous and subsequent point.

    1. Choose the desired contour color to apply the tool.

    2. Set the mouse pointer on the line and move along.

    Contour non-smoothed

    Contour non-smoothed

    Contour smoothed

    Contour smoothed

  • Pull:

    Pull line points closer to the mouse pointer. When clicking outside of the contour, you will pull it outward, when clicking inside then inward. Each click brings the line closer to the mouse pointer.

    Marking too far from contour

    Marking too far from contour

    Marking pulled up

    Marking pulled up

Activate border detection: If the option is deactivated, please try to follow the contours as exactly as possible. The result will be taken as it is.

Normally a good result is easier achieved with activated option.

Example of badly drawn freehand line

Example of badly drawn freehand line

Border detection activated

Border detection activated