Method and apparatus for automatic shape computing for contour shape determining machine

An automatic shape calculating apparatus in a contour shape measuring machine, comprising;

• the contour shape measuring machine for measuring a contour shape of a measured subject to output shape data;
• a recognition condition entering part for entering geometric shape recognition conditions;
• a calculation area setting part for provisionally setting a geometric shape boundary of the shape data, and for setting a geometric shape calculation area of the shape data in areas except for vicinities of the provisionally set geometric shape boundary, a measurement starting point and a measurement ending point;
• a geometric shape value calculating part for calculating a geometric shape value of the shape data while determining a geometric shape of the shape data under the geometric shape recognition conditions for the set geometric shape calculation area;
• a boundary value calculating part for calculating a geometric shape boundary value from the calculated geometric shape value;
• and
• a measurement result outputting part for outputting the calculated geometric shape value and geometric shape boundary value.