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add cubic curves #32

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add cubic curves #32

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f19ed44
add cubic curves
LinuxUserJTB Jan 8, 2023
33fa943
fix formatting
LinuxUserJTB Jul 18, 2025
c28d3d5
Merge branch 'JuliaGraphics:master' into master
LinuxUserJTB Jul 18, 2025
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22 changes: 20 additions & 2 deletions src/Graphics.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,7 @@ Graphics defines an API for drawing in two dimensions.

- Clipping: `clip`, `clip_preserve`, `reset_clip`, `inner_canvas`

- Paths: `move_to`, `line_to`, `rel_line_to`, `rel_move_to`,
- Paths: `move_to`, `line_to`, `curve_to`, `rel_curve_to`, `rel_line_to`, `rel_move_to`,
`new_path`, `new_sub_path`, `close_path`, `arc`

- High-level paths: `rectangle`, `circle`, `polygon`
Expand Down Expand Up @@ -71,7 +71,7 @@ export
clip, clip_preserve, reset_clip, inner_canvas,

# path primitives
move_to, line_to, rel_line_to, rel_move_to, new_path, new_sub_path,
move_to, line_to, curve_to, rel_curve_to, rel_line_to, rel_move_to, new_path, new_sub_path,
close_path, arc,

# fill and stroke
Expand Down Expand Up @@ -722,6 +722,24 @@ See also: [`rel_line_to`](@ref).
"""
@mustimplement line_to(gc::GraphicsContext, ::Real, ::Real)

"""
curve_to(gc::GraphicsContext, c1x, c1y, c2x, c2y, x, y)

Add a cubic bezier curve to the path. The control points will be the current point, `(c1x, c1y)`, `(c2x, c2y)` and `(x, y)`. The current point will be moved to `(x, y)`.

See also: [`rel_curve_to`](@ref).
"""
@mustimplement curve_to(gc::GraphicsContext, ::Real, ::Real, ::Real, ::Real, ::Real, ::Real)

"""
rel_curve_to(gc::GraphicsContex, Δc1x, Δc1y, Δc2x, Δc2y, Δx, Δy)

Add a cubic bezier curve to the path. The control points will be the current point `(x, y)` and `(x, y) + [(Δc1x, Δc1y), (Δc2x, Δc2y), (Δx, Δy)]`. The current point will be moved to `(x + Δx, y + Δy)`.

See also: [`curve_to`](@ref).
"""
@mustimplement rel_curve_to(gc::GraphicsContext, ::Real, ::Real, ::Real, ::Real, ::Real, ::Real)

"""
rel_move_to(gc::GraphicsContext, Δx, Δy)

Expand Down
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