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plotly: support aspect_ratio

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This commit is contained in:
Thomas Breloff 2016-09-30 13:44:37 -04:00
parent 4416fc919e
commit f41a09b68e
1 changed files with 30 additions and 3 deletions
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33
src/backends/plotly.jl
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@ -26,7 +26,8 @@ const _plotly_attr = merge_with_base_supported([
# :overwrite_figure, # :overwrite_figure,
:polar, :polar,
:normalize, :weights, :normalize, :weights,
# :contours, :aspect_ratio, # :contours,
:aspect_ratio,
:hover, :hover,
:inset_subplots, :inset_subplots,
]) ])
@ -150,11 +151,38 @@ function plotly_scale(scale::Symbol)
end end
end end
function shrink_by(lo, sz, ratio)
amt = 0.5 * (1.0 - ratio) * sz
lo + amt, sz - 2amt
end
function plotly_apply_aspect_ratio(sp::Subplot, plotarea, pcts)
aspect_ratio = sp[:aspect_ratio]
if aspect_ratio != :none
if aspect_ratio == :equal
aspect_ratio = 1.0
end
parea_ratio = width(plotarea) / height(plotarea)
if aspect_ratio > parea_ratio
# need to shrink y
ratio = parea_ratio / aspect_ratio
pcts[2], pcts[4] = shrink_by(pcts[2], pcts[4], ratio)
elseif aspect_ratio < parea_ratio
# need to shrink x
ratio = aspect_ratio / parea_ratio
pcts[1], pcts[3] = shrink_by(pcts[1], pcts[3], ratio)
end
pcts
end
pcts
end
# this method gets the start/end in percentage of the canvas for this axis direction # this method gets the start/end in percentage of the canvas for this axis direction
function plotly_domain(sp::Subplot, letter) function plotly_domain(sp::Subplot, letter)
figw, figh = sp.plt[:size] figw, figh = sp.plt[:size]
pcts = bbox_to_pcts(sp.plotarea, figw*px, figh*px) pcts = bbox_to_pcts(sp.plotarea, figw*px, figh*px)
pcts = plotly_apply_aspect_ratio(sp, sp.plotarea, pcts)
i1,i2 = (letter == :x ? (1,3) : (2,4)) i1,i2 = (letter == :x ? (1,3) : (2,4))
[pcts[i1], pcts[i1]+pcts[i2]] [pcts[i1], pcts[i1]+pcts[i2]]
end end
@ -230,6 +258,7 @@ function plotly_layout(plt::Plot)
for sp in plt.subplots for sp in plt.subplots
spidx = plotly_subplot_index(sp) spidx = plotly_subplot_index(sp)
# add an annotation for the title... positioned horizontally relative to plotarea, # add an annotation for the title... positioned horizontally relative to plotarea,
# but vertically just below the top of the subplot bounding box # but vertically just below the top of the subplot bounding box
if sp[:title] != "" if sp[:title] != ""
@ -249,8 +278,6 @@ function plotly_layout(plt::Plot)
d_out[:plot_bgcolor] = rgba_string(sp[:background_color_inside]) d_out[:plot_bgcolor] = rgba_string(sp[:background_color_inside])
# TODO: x/y axis tick values/labels
# if any(is3d, seriesargs) # if any(is3d, seriesargs)
if is3d(sp) if is3d(sp)
d_out[:scene] = KW( d_out[:scene] = KW(