Applique data management apparatus, sewing machine, and storage medium storing applique data management program

A sewing machine comprising:

• an output interface;
• and
• a controller configured to:
• acquire sewing data for sewing an applique piece on a sewing target material, the applique piece having a shape having a hole, the hole being a closed area surrounded by at least part of the applique piece;
• identify a contour of the applique piece while distinguishing an inner contour and an outer contour, the inner contour being the contour defining the hole of the applique piece, the outer contour being the contour other than the inner contour;
• determine, based on the acquired sewing data, whether an inner stitch and an outer stitch are arranged at positions closer to each other than a particular distance or at positions overlapping each other, the inner stitch being formed along the inner contour, the outer stitch being formed along the outer contour;
• and
• output an error notification through the output interface in response to determining that the inner stitch and the outer stitch are arranged at positions closer to each other than the particular distance or at positions overlapping each other.

A non-transitory computer-readable storage medium storing an applique data management program including a set of program instructions for an applique data management apparatus, the set of program instructions, when executed by a controller of the applique data management apparatus, causing the applique data management apparatus to perform:

• acquiring sewing data for sewing an applique piece on a sewing target material, the applique piece having a shape having a hole, the hole being a closed area surrounded by at least part of the applique piece;
• identifying a contour of the applique piece while distinguishing an inner contour and an outer contour, the inner contour being the contour defining the hole of the applique piece, the outer contour being the contour other than the inner contour;
• determining, based on the acquired sewing data, whether an inner stitch and an outer stitch are arranged at positions closer to each other than a particular distance or at positions overlapping each other, the inner stitch being formed along the inner contour, the outer stitch being formed along the outer contour;
• and
• outputting an error notification through an output interface of the applique data management apparatus in response to determining that the inner stitch and the outer stitch are arranged at positions closer to each other than the particular distance or at positions overlapping each other.