mantao/Plots.jl
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working on recipes

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This commit is contained in:
Thomas Breloff 2015-10-09 14:35:00 -04:00
parent 64b8e15918
commit 45747e3635
3 changed files with 232 additions and 157 deletions
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146
examples/facets.ipynb
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examples/recipes.ipynb Normal file
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src/recipes.jl
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@ -9,6 +9,16 @@ plot!(recipe::PlotRecipe, args...; kw...) = plot!(getRecipeXY(recipe)..., args..
plot!(plt::Plot, recipe::PlotRecipe, args...; kw...) = plot!(getRecipeXY(recipe)..., args...; getRecipeArgs(recipe)..., kw...) plot!(plt::Plot, recipe::PlotRecipe, args...; kw...) = plot!(getRecipeXY(recipe)..., args...; getRecipeArgs(recipe)..., kw...)
# -------------------------------------------------
function rotate(x::Real, y::Real, θ::Real; center = (0,0))
cx = x - center[1]
cy = y - center[2]
xrot = cx * cos(θ) - cy * sin(θ)
yrot = cy * cos(θ) + cx * sin(θ)
xrot + center[1], yrot + center[2]
end
# ------------------------------------------------- # -------------------------------------------------
type EllipseRecipe <: PlotRecipe type EllipseRecipe <: PlotRecipe
@ -22,24 +32,21 @@ EllipseRecipe(w,h,x,y) = EllipseRecipe(w,h,x,y,0)
# return x,y coords of a rotated ellipse, centered at the origin # return x,y coords of a rotated ellipse, centered at the origin
function rotatedEllipse(w, h, x, y, θ, rotθ) function rotatedEllipse(w, h, x, y, θ, rotθ)
# coord before rotation # # coord before rotation
xpre = w * cos(θ) xpre = w * cos(θ)
ypre = h * sin(θ) ypre = h * sin(θ)
# rotate
xrot = xpre * cos(rotθ) + ypre * sin(rotθ)
yrot = ypre * cos(rotθ) - xpre * sin(rotθ)
# translate # rotate and translate
xrot + x, yrot + y r = rotate(xpre, ypre, rotθ)
x + r[1], y + r[2]
end end
function getRecipeXY(ep::EllipseRecipe) function getRecipeXY(ep::EllipseRecipe)
x, y = unzip([rotatedEllipse(ep.w, ep.h, ep.x, ep.y, u, ep.θ) for u in linspace(0,2π,100)]) x, y = unzip([rotatedEllipse(ep.w, ep.h, ep.x, ep.y, u, ep.θ) for u in linspace(0,2π,100)])
right = rotatedEllipse(ep.w, ep.h, ep.x, ep.y, 0, ep.θ) top = rotate(0, ep.h, ep.θ)
top = rotatedEllipse(ep.w, ep.h, ep.x, ep.y, 0.5π, ep.θ) right = rotate(ep.w, 0, ep.θ)
linex = Float64[top[1], ep.x, right[1]] linex = Float64[top[1], 0, right[1]] + ep.x
liney = Float64[top[2], ep.y, right[2]] liney = Float64[top[2], 0, right[2]] + ep.y
Any[x, linex], Any[y, liney] Any[x, linex], Any[y, liney]
end end