Abstract: An embroidering machine controller which can be operated with improved operability even by unskilled operators or by operators of foreign nationalities despite language barriers, if any. The controller (12) is provided with exclusive pictorial switch keys (21A to 21J) and auxiliary switch keys (22A to 22D) on its operating panel (14). The faces of the exclusive pictorial switch keys (21A to 21J) bear graphic symbols indicative of the contents of exclusively allotted commands. The auxiliary switch keys (22A to 22D) are selectively allotted with commands in relation with and in submission to a keying operation on one of the exclusive pictorial switch keys (21A to 21J). Graphic symbols of the commands which are currently allotted to the respective auxiliary switch keys (22A to 22D) are shown in a menu area (15A) on the viewing screen of a display means (15). In addition, a corresponding graphic symbol is shown as a guide message in a message area (15B) of the display screen in response to a keying operation.

Abstract: Disclosed herein is a turning zigzag embroidery machine adapted to read in from outside needle center data N, which permits scaling up or down or alteration of an embroidery pattern, and to convert the needle center data into frame center data C to reproduce an embroidery pattern in an improved form. Of externally read-in needle center data N (.DELTA.X, .DELTA.Y, .theta., W) and the data of needle center N on X-Y axes, this turning zigzag embroidery machine transforms, for example, data Nk (Xk, Yk, .theta.k, Wk) of needle center Nk into data Ck (xk, yk, .theta.k, Wk) of frame center Ck on x-y axes by arithmetic conversion. Then, in order to advance an embroidering needle 10 to the needle center Nk, a rotatable frame is shifted in the directions of x- and y-axes and at the same time it is turned through a given rotational angle .theta.=.theta.k in the direction of arrow E.