Positioning of stitch data objects
View Patent ↗A method is provided for embroidering embroidery elements by means of a processor-controlled sewing machine ( 1 ). The method includes: the fabric ( 2 ) that is to be embroidered is placed in the required position in relation to a threaded needle ( 5 ) on the sewing machine; a plurality of embroidery elements (A, B, C) in the form of software products having pre-programmed embroideries are provided; a group of said embroidery elements, defined as stitch data objects in a memory (M), is selected; an arbitrary curve (KU) along which said group of embroidery elements (A, B, C) shall be embroidered on said fabric ( 2 ) is defined by the operator of the sewing machine; said embroidery elements of said group are distributed in a spaced relationship along said curve utilizing a positioning algorithm. According to the method of the invention, a coupling between the embroidery elements of the group and the arbitrary curve is preserved during the full processing by said positioning algorithm.
1. A method of positioning embroidery elements with a processor-controlled sewing machine, the method comprising:
placing fabric that is to be embroidered in a position in relation to a threaded needle on the sewing machine;
providing a plurality of embroidery elements defined as stitch data objects in a memory;
selecting at least one of the plurality of embroidery elements to define a group of embroidery elements to be embroidered on the fabric;
defining an arbitrary curve along which the embroidery elements shall be embroidered on the fabric;
distributing the embroidery elements in a spaced relationship along the defined arbitrary curve utilizing a positioning algorithm; and
preserving a coupling between the group of embroidery elements and the arbitrary curve.
2. The method according to claim 1 , further comprising setting the arbitrary curve to be one of a number of pre-defined curves being accessible in the memory or a curve specified by a user of the sewing machine, wherein the arbitrary curve has a number of curve definition points.
3. The method according to claim 2 , further comprising defining at least one set of control points for the group of embroidery elements, wherein each set of control points includes at least one of the curve definition points.
4. The method according to claim 2 , further comprising modifying the arbitrary curve by at least one of translating, rotating, and scaling the set of control points.
5. The method according to claim 2 , further comprising modifying the arbitrary curve by assigning a weight of at least one of the control points to determine a level of attraction by which the control point attracts the arbitrary curve.
6. The method according to claim 2 , further comprising modifying the arbitrary curve by adding or removing a control point from the defined set of control points.
7. The method according to claim 2 , further comprising modifying the arbitrary curve by adding or removing a curve definition point from the arbitrary curve.
8. The method according to claim 1 , further comprising setting a gap between the embroidery elements of the group of embroidery elements as an evenly distributed gap or a user specified gap distribution.
9. The method according to claim 1 , further comprising setting an angle between an embroidery element of the group of embroidery elements and a tangent of the curve at a point of the curve to which the embroidery element is assigned by any one of use of an angle set by a positioning algorithm, use of a manual set of the angle, use of an angle aligned to a specific coordinate system, or use of a specific angle control algorithm.
10. The method according to claim 1 , further comprising selectively adjusting the position of at least one of the embroidery elements in relation to at least one of a neighboring embroidery element of the group of embroidery elements, and the arbitrary curve.
11. The method according to any one of the preceding claims, further comprising defining a point related to the geometry of the embroidery element, wherein the point is one of a point on a side of a rectangle inscribing the embroidery element, a point on a symmetry line of the graphic object represented by the embroidery element, a midpoint of the symmetry line, a sharp point of the graphic object represented by the embroidery element, a point selected by the user, or aligning the embroidery element to the curve by means of positioning the point on the curve.
12. The method according to claim 1 , further comprising storing a version of the group of embroidery elements edited on the sewing machine in a memory for later use.
13. The method according to claim 1 , further comprising automatically adjusting the positions of the embroidery elements in a predetermined relation to sharp points of the arbitrary curve.
14. The method according to claim 1 , further comprising automatically positioning the positions of the embroidery elements to compensate for convex and concave portions of the arbitrary curve along which the embroidery elements are positioned.
15. A method of positioning embroidery elements with a processor-controlled sewing machine, the method comprising:
placing fabric that is to be embroidered in a position in relation to a threaded needle on the sewing machine;
selecting a group of embroidery elements to be embroidered on the fabric;
distributing the group of embroidery elements along an arbitrary curve;
performing an intersection test on at least one embroidery element from the group of embroidery elements distributed along the arbitrary curve to determine if the at least one embroidery element overlaps any of the other embroidery elements from the group of embroidery elements distributed along the arbitrary curve; and
positioning the at least one embroidery element on the arbitrary curve in response to feedback received from the intersection test such that it does not overlap any of the other embroidery elements from the group of embroidery elements distributed along the arbitrary curve.