;;;; along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
;;;; This file implements different flag styles in Scheme / GUILE, most
-;;;; notably the old-straight-flag and the modern-straight-flag styles.
+;;;; notably the old-straight-flag, the modern-straight-flag and the flat-flag
+;;;; styles.
(define-public (no-flag grob)
(raw-length (if stem-up upflag-length downflag-length))
(angle (if stem-up upflag-angle downflag-angle))
(flag-length (+ (* raw-length factor) half-stem-thickness))
- (flag-end (polar->rectangular flag-length angle))
+ ;; For flat flags the points to create the stencil using
+ ;; ly:round-filled-polygon need to be different concerning flag-end
+ (flag-end (if (= angle 0)
+ (cons flag-length (* half-stem-thickness dir))
+ (polar->rectangular flag-length angle)))
(thickness (* flag-thickness factor))
(thickness-offset (cons 0 (* -1 thickness dir)))
(spacing (* -1 flag-spacing factor dir ))
(start (cons (- half-stem-thickness) (* half-stem-thickness dir)))
;; The points of a round-filled-polygon need to be given in clockwise
;; order, otherwise the polygon will be enlarged by blot-size*2!
- (points (if stem-up (list start flag-end
- (offset-add flag-end thickness-offset)
- (offset-add start thickness-offset))
+ (points (if stem-up
+ (list start
+ flag-end
+ (offset-add flag-end thickness-offset)
+ (offset-add start thickness-offset))
(list start
(offset-add start thickness-offset)
(offset-add flag-end thickness-offset)
flags are both 45 degrees."
((straight-flag 0.55 1 -45 1.2 45 1.4) grob))
+(define-public (flat-flag grob)
+ "Flat flag style. The angles of the flags are both 0 degrees"
+ ((straight-flag 0.55 1.0 0 1.0 0 1.0) grob))
+
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;; Flags created from feta glyphs (normal and mensural flags)