Region Grow Circle

images/download/attachments/122260007/CmdExtractCircle.svg

This command extracts a circle according to seed points and visible objects.

Requirements

To extract a circle, launch the command and click a seed on objects.


  1. You can force the center, the normal or the radius :

    1. Enter the XYZ coordinates in the edit controls or click on the icon images/download/attachments/122288076/AddPoint.svg to click a point in the scene.

    2. Enter the XYZ values of the vector in the edit controls or click on the icon images/download/attachments/122288081/Normal1.svg to define a direction in the scene.

  2. Set the Extraction tolerance.

  3. Click a seed point.

Notes

  • Once a seed point is clicked, the computation is launched. You can cancel the current computation by pressing ESC or by clicking another point.

  • Sometimes, when you compute a circle, an incorrect extraction may occur with the point you click if, at this place, the noise disturbs the local curvature evaluation or if only a part of the circle is present. In this case, click a new point to replace the current seed point.

  • The Extraction tolerance corresponds to the extraction of the plane which contains the circle (Extraction performed in two steps: plane and contour extractions).