diff options
Diffstat (limited to 'src/live_effects/spiro.cpp')
| -rw-r--r-- | src/live_effects/spiro.cpp | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/src/live_effects/spiro.cpp b/src/live_effects/spiro.cpp index 46e53a0da..0ac2815bf 100644 --- a/src/live_effects/spiro.cpp +++ b/src/live_effects/spiro.cpp @@ -847,13 +847,13 @@ solve_spiro(spiro_seg *s, const int nseg) static void spiro_seg_to_otherpath(const double ks[4], double x0, double y0, double x1, double y1, - ConverterBase &bc, int depth) + ConverterBase &bc, int depth, bool close_last) { double bend = fabs(ks[0]) + fabs(.5 * ks[1]) + fabs(.125 * ks[2]) + fabs((1./48) * ks[3]); if (!(bend > 1e-8)) { - bc.lineto(x1, y1); + bc.lineto(x1, y1, close_last); } else { double seg_ch = hypot(x1 - x0, y1 - y0); double seg_th = atan2(y1 - y0, x1 - x0); @@ -876,7 +876,7 @@ spiro_seg_to_otherpath(const double ks[4], vl = (scale * (1./3)) * sin(th_even - th_odd); ur = (scale * (1./3)) * cos(th_even + th_odd); vr = (scale * (1./3)) * sin(th_even + th_odd); - bc.curveto(x0 + ul, y0 + vl, x1 - ur, y1 - vr, x1, y1); + bc.curveto(x0 + ul, y0 + vl, x1 - ur, y1 - vr, x1, y1, close_last); } else { /* subdivide */ double ksub[4]; @@ -895,11 +895,11 @@ spiro_seg_to_otherpath(const double ks[4], integrate_spiro(ksub, xysub); xmid = x0 + cth * xysub[0] - sth * xysub[1]; ymid = y0 + cth * xysub[1] + sth * xysub[0]; - spiro_seg_to_otherpath(ksub, x0, y0, xmid, ymid, bc, depth + 1); + spiro_seg_to_otherpath(ksub, x0, y0, xmid, ymid, bc, depth + 1, false); ksub[0] += .25 * ks[1] + (1./384) * ks[3]; ksub[1] += .125 * ks[2]; ksub[2] += (1./16) * ks[3]; - spiro_seg_to_otherpath(ksub, xmid, ymid, x1, y1, bc, depth + 1); + spiro_seg_to_otherpath(ksub, xmid, ymid, x1, y1, bc, depth + 1, close_last); } } } @@ -933,9 +933,10 @@ spiro_to_otherpath(const spiro_seg *s, int n, ConverterBase &bc) double y1 = s[i + 1].y; if (i == 0) { - bc.moveto(x0, y0, s[0].ty == '{'); + bc.moveto(x0, y0); } - spiro_seg_to_otherpath(s[i].ks, x0, y0, x1, y1, bc, 0); + // on the last segment, set the 'close_last' flag if path is closed + spiro_seg_to_otherpath(s[i].ks, x0, y0, x1, y1, bc, 0, (nsegs == n) && (i == n - 1)); } } |