- int s,t;
- for(t=0;t<poly->num_strokes;t++) {
- gfxpolystroke_t*stroke = &poly->strokes[t];
- for(s=0;s<stroke->num_points-1;s++) {
- point_t a = stroke->points[s];
- point_t b = stroke->points[s+1];
- fprintf(fi, "%g setgray\n", stroke->dir==DIR_UP ? 0.7 : 0);
- fprintf(fi, "%d %d moveto\n", a.x, a.y);
- fprintf(fi, "%d %d lineto\n", b.x, b.y);
- fprintf(fi, "stroke\n");
+ int t;
+ double l = 5.0 / poly->gridsize;
+ double g = poly->gridsize;
+ gfxpolystroke_t*stroke = poly->strokes;
+ for(;stroke;stroke=stroke->next) {
+ fprintf(fi, "%g setgray\n", 0);
+
+ int s = stroke->dir==DIR_UP?stroke->num_points-1:0;
+ int end = stroke->dir==DIR_UP?-1:stroke->num_points;
+ int dir = stroke->dir==DIR_UP?-1:1;
+
+ point_t p = stroke->points[s];
+ s+=dir;
+ point_t o = p;
+ fprintf(fi, "%f %f moveto\n", p.x * g, p.y * g);
+ for(;s!=end;s+=dir) {
+ p = stroke->points[s];
+ int lx = p.x - o.x;
+ int ly = p.y - o.y;
+ double d = sqrt(lx*lx+ly*ly);
+ if(!d) d=1;
+ else d = l / d;
+ double d2 = d*1.5;
+ fprintf(fi, "%f %f lineto\n", (p.x - lx*d2) * g, (p.y - ly*d2) * g);
+ fprintf(fi, "%f %f lineto\n", (p.x - lx*d2 + (ly*d))*g,
+ (p.y - ly*d2 - (lx*d))*g);
+ fprintf(fi, "%f %f lineto\n", p.x * g, p.y * g);
+ fprintf(fi, "%f %f lineto\n", (p.x - lx*d2 - (ly*d))*g,
+ (p.y - ly*d2 + (lx*d))*g);
+ fprintf(fi, "%f %f lineto\n", (p.x - lx*d2) * g, (p.y - ly*d2) * g);
+ fprintf(fi, "%f %f moveto\n", p.x * g, p.y * g);
+ o = p;