mantao/Plots.jl
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Implement grid attributes for polar plots.

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This commit is contained in:
Andrew Palugniok 2017-11-04 21:27:02 +00:00
parent f0ad851aa7
commit 2fe2ff474c
4 changed files with 69 additions and 30 deletions
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85
src/backends/gr.jl
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@ -205,35 +205,66 @@ function gr_text(x, y, s)
end
end
function gr_polaraxes(rmin, rmax)
function gr_polaraxes(rmin::Real, rmax::Real, sp::Subplot)
GR.savestate()
GR.setlinetype(GR.LINETYPE_SOLID)
GR.setlinecolorind(88)
xaxis = sp[:xaxis]
yaxis = sp[:yaxis]
α = 0:45:315
a = α .+ 90
sinf = sind.(a)
cosf = cosd.(a)
tick = 0.5 * GR.tick(rmin, rmax)
n = round(Int, (rmax - rmin) / tick + 0.5)
for i in 0:n
r = float(i) / n
if i % 2 == 0
GR.setlinecolorind(88)
if i > 0
GR.drawarc(-r, r, -r, r, 0, 359)
end
GR.settextalign(GR.TEXT_HALIGN_LEFT, GR.TEXT_VALIGN_HALF)
x, y = GR.wctondc(0.05, r)
GR.text(x, y, string(signif(rmin + i * tick, 12)))
else
GR.setlinecolorind(90)
GR.drawarc(-r, r, -r, r, 0, 359)
#draw angular grid
if xaxis[:grid]
gr_set_line(xaxis[:gridlinewidth], xaxis[:gridstyle], xaxis[:foreground_color_grid])
GR.settransparency(xaxis[:gridalpha])
for i in 1:length(α)
GR.polyline([sinf[i], 0], [cosf[i], 0])
end
end
for α in 0:45:315
a = α + 90
sinf = sin(a * pi / 180)
cosf = cos(a * pi / 180)
GR.polyline([sinf, 0], [cosf, 0])
GR.settextalign(GR.TEXT_HALIGN_CENTER, GR.TEXT_VALIGN_HALF)
x, y = GR.wctondc(1.1 * sinf, 1.1 * cosf)
GR.textext(x, y, string(α, "^o"))
#draw radial grid
if yaxis[:grid]
gr_set_line(yaxis[:gridlinewidth], yaxis[:gridstyle], yaxis[:foreground_color_grid])
GR.settransparency(yaxis[:gridalpha])
for i in 0:n
r = float(i) / n
if i % 2 == 0
if i > 0
GR.drawarc(-r, r, -r, r, 0, 359)
end
else
GR.drawarc(-r, r, -r, r, 0, 359)
end
end
end
#prepare to draw ticks
GR.settransparency(1)
GR.setlinecolorind(90)
GR.settextalign(GR.TEXT_HALIGN_CENTER, GR.TEXT_VALIGN_HALF)
#draw angular ticks
if xaxis[:showaxis]
GR.drawarc(-1, 1, -1, 1, 0, 359)
for i in 1:length(α)
x, y = GR.wctondc(1.1 * sinf[i], 1.1 * cosf[i])
GR.textext(x, y, string((360-α[i])%360, "^o"))
end
end
#draw radial ticks
if yaxis[:showaxis]
for i in 0:n
r = float(i) / n
if i % 2 == 0
x, y = GR.wctondc(0.05, r)
GR.text(x, y, string(signif(rmin + i * tick, 12)))
end
end
end
GR.restorestate()
end
@ -760,9 +791,9 @@ function gr_display(sp::Subplot{GRBackend}, w, h, viewport_canvas)
elseif ispolar(sp)
r = gr_set_viewport_polar()
rmin, rmax = GR.adjustrange(ignorenan_minimum(r), ignorenan_maximum(r))
# rmin, rmax = axis_limits(sp[:yaxis])
gr_polaraxes(rmin, rmax)
#rmin, rmax = GR.adjustrange(ignorenan_minimum(r), ignorenan_maximum(r))
rmin, rmax = axis_limits(sp[:yaxis])
gr_polaraxes(rmin, rmax, sp)
elseif draw_axes
if xmax > xmin && ymax > ymin

2
src/backends/pgfplots.jl
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@ -294,6 +294,8 @@ function pgf_axis(sp::Subplot, letter)
# grid on or off
if axis[:grid] && framestyle != :none
push!(style, "$(letter)majorgrids = true")
else
push!(style, "$(letter)majorgrids = false")
end
# limits

2
src/backends/plotly.jl
View File

@ -293,7 +293,7 @@ end
function plotly_polaraxis(axis::Axis)
ax = KW(
:visible => axis[:grid],
:visible => axis[:showaxis],
:showline => axis[:grid],
)

10
src/backends/pyplot.jl
View File

@ -1093,7 +1093,11 @@ function _before_layout_calcs(plt::Plot{PyPlotBackend})
if !sp[:xaxis][:showaxis]
kw = KW()
for dir in (:top, :bottom)
ax[:spines][string(dir)][:set_visible](false)
if ispolar(sp)
ax[:spines]["polar"][:set_visible](false)
else
ax[:spines][string(dir)][:set_visible](false)
end
kw[dir] = kw[Symbol(:label,dir)] = "off"
end
ax[:xaxis][:set_tick_params](; which="both", kw...)
@ -1101,7 +1105,9 @@ function _before_layout_calcs(plt::Plot{PyPlotBackend})
if !sp[:yaxis][:showaxis]
kw = KW()
for dir in (:left, :right)
ax[:spines][string(dir)][:set_visible](false)
if !ispolar(sp)
ax[:spines][string(dir)][:set_visible](false)
end
kw[dir] = kw[Symbol(:label,dir)] = "off"
end
ax[:yaxis][:set_tick_params](; which="both", kw...)