Attachment 68177 Details for Bug 55706 – working example of pattern

working example of pattern

cairo pattern bug 0.0 snd 1.0.c (text/plain), 1.41 KB, created by Volker on 2012-10-06 22:04:53 UTC

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Creator: Volker

Created: 2012-10-06 22:04:53 UTC

Size: 1.41 KB

patch

obsolete

>cairo_surface_t *pdf;
>		cairo_t *cr;
>		cairo_pattern_t *pat;
>
>		double x0      = 100,   /* parameters like cairo_rectangle */
>					 y0      = 100,
>					 rect_width  = 50,
>					 rect_height = 50,
>					 radius = 20;
>
>		double x1,y1;
>
>		double w = 100, h=100;
>		double dx0=20, dx1=20, dx2=dx0+w, dy0=20+h, dy1=20, dy2=20;
>
>
>		x1=x0+rect_width;
>		y1=y0+rect_height;
>
>		pdf = cairo_pdf_surface_create("test.pdf", 500, 800);
>		cr = cairo_create(pdf);
>
>		cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
>
>
>		cairo_set_line_width (cr, 10);
>
>
>		pat = cairo_pattern_create_linear (dx2, dy2,dx0, dy0);
>
>		//0.5 bei beiden fÃ¼r eine Trennung der Farben
>		//1.0, 0 fÃ¼r einen gleitenden Ãbergang
>		cairo_pattern_add_color_stop_rgba (pat, 0, 1, 1, 1, 1);
>		cairo_pattern_add_color_stop_rgba (pat, 1, 0, 0, 0, 1);
>		cairo_set_source (cr, pat);
>
>
>		cairo_move_to  (cr, dx0, dy0);
>		cairo_curve_to (cr, dx0, dy0, dx1, dy1, dx2, dy2);
>
>		cairo_stroke(cr);
>
>		cairo_move_to(cr, dx0, dy0-1);
>		cairo_line_to(cr, dx0, dy0+200);
>		cairo_stroke(cr);
>
>		cairo_set_line_width (cr, 1);
>		cairo_set_source_rgba(cr, 1,0,0,1);
>
>		cairo_move_to(cr, dx0, dy0);
>		cairo_arc(cr, dx0, dy0,3,0,2*M_PI);
>		cairo_stroke(cr);
>
>		cairo_move_to(cr, dx1, dy1);
>		cairo_arc(cr, dx1, dy1,3,0,2*M_PI);
>		cairo_stroke(cr);
>
>		cairo_move_to(cr, dx2, dy2);
>		cairo_arc(cr, dx2, dy2,3,0,2*M_PI);
>		cairo_stroke(cr);
>
>
>		cairo_show_page(cr);
>
>		cairo_surface_destroy(pdf);
>		cairo_destroy(cr);

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Attachments on bug 55706: 68176 | 68177 | 68178 | 68179 | 68180

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