This is my "Hello world" for Cairo in Julia outputting to PNG:
using Cairo
imwidth = 200
imheight = 200
c = CairoRGBSurface(imwidth,imheight)
cr = CairoContext(c)
set_source_rgba(cr, 1, 0.7, 0.2, 0.9)
set_line_width(cr, 1)
circle(cr, 100, 100, 50)
stroke(cr)
select_font_face (cr, "Helvetica", Cairo.FONT_SLANT_NORMAL,
Cairo.FONT_WEIGHT_NORMAL)
set_font_size (cr, 12)
move_to(cr, 100,100)
show_text(cr,"Hello world")
write_to_png(c,"/tmp/helloworld.png")
run(`open /tmp/helloworld.png`)
But I prefer to output to PDF. I've got as far as finding this:
c = CairoPDFSurface("/tmp/helloworld.pdf", imwidth, imheight)
but there's isn't a write_to_pdf() function (obviously?). But I can't get
any output.
Pkg.installed() gives:
"Cairo" => v"0.2.20"
and I'm on version 0.3.0.
