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## header to provide surface and context | |
using Cairo, LinearAlgebra | |
c = CairoRGBSurface(256,256); | |
cr = CairoContext(c); | |
rectangle(cr,0.0,0.0,256.0,256.0); # background | |
save(cr); | |
set_source_rgb(cr,0.8,0.8,0.8); # light gray | |
fill(cr); | |
restore(cr); | |
## original example, following here | |
b = Cairo.Colors.ARGB32(Cairo.Colors.colorant"black") | |
w = Cairo.Colors.ARGB32(Cairo.Colors.colorant"white") | |
N = 10 | |
image = fill(w, N, N) | |
for i = 1:N | |
image[N+1-i, i] = b | |
end | |
image = CairoImageSurface(image) | |
w = N | |
h = N | |
pattern = CairoPattern(image); | |
pattern_set_extend(pattern, Cairo.EXTEND_REPEAT); | |
arc(cr, 128.0, 128.0, 76.8, 0, 2*pi); | |
clip(cr); | |
rectangle(cr, 0, 0, 256.0, 256.0); | |
set_source(cr, pattern); | |
fill(cr); | |
set_source_surface(cr, image, 0, 0); | |
paint(cr); | |
write_to_png(c,"sample_clip_image.png"); |
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