poly

poly(vertices, indices; kwargs...)
poly(points; kwargs...)
poly(shape; kwargs...)
poly(mesh; kwargs...)

Plots a polygon based on the arguments given. When vertices and indices are given, it functions similarly to mesh. When points are given, it draws one polygon that connects all the points in order. When a shape is given (essentially anything decomposable by GeometryBasics), it will plot decompose(shape).

poly(coordinates, connectivity; kwargs...)

Plots polygons, which are defined by coordinates (the coordinates of the vertices) and connectivity (the edges between the vertices).

Attributes

Specific to Poly

  • color=theme(scene, :patchcolor) sets the color of the poly. Can be a Vector{<:Colorant} for per vertex colors or a single Colorant. A Matrix{<:Colorant} can be used to color the mesh with a texture, which requires the mesh to contain texture coordinates. Vector or Matrices of numbers can be used as well, which will use the colormap arguments to map the numbers to colors. One can also use Makie.LinePattern, to cover the poly with a regular stroke pattern.

  • strokecolor::Union{Symbol, <:Colorant} = :black sets the color of the outline around a marker.

  • strokecolormap::Union{Symbol, Vector{<:Colorant}} = :viridissets the colormap that is sampled for numericcolor`s.

  • strokewidth::Real = 0 sets the width of the outline around a marker.

  • linestyle::Union{Nothing, Symbol, Vector} = nothing sets the pattern of the line (e.g. :solid, :dot, :dashdot)

Color attributes

  • colormap::Union{Symbol, Vector{<:Colorant}} = :viridis sets the colormap that is sampled for numeric colors. PlotUtils.cgrad(...), Makie.Reverse(any_colormap) can be used as well, or any symbol from ColorBrewer or PlotUtils. To see all available color gradients, you can call Makie.available_gradients().

  • colorscale::Function = identity color transform function. Can be any function, but only works well together with Colorbar for identity, log, log2, log10, sqrt, logit, Makie.pseudolog10 and Makie.Symlog10.

  • colorrange::Tuple{<:Real, <:Real} sets the values representing the start and end points of colormap.

  • nan_color::Union{Symbol, <:Colorant} = RGBAf(0,0,0,0) sets a replacement color for color = NaN.

  • lowclip::Union{Nothing, Symbol, <:Colorant} = nothing sets a color for any value below the colorrange.

  • highclip::Union{Nothing, Symbol, <:Colorant} = nothing sets a color for any value above the colorrange.

  • alpha = 1.0 sets the alpha value of the colormap or color attribute. Multiple alphas like in plot(alpha=0.2, color=(:red, 0.5), will get multiplied.

Generic attributes

  • visible::Bool = true sets whether the plot will be rendered or not.

  • overdraw::Bool = false sets whether the plot will draw over other plots. This specifically means ignoring depth checks in GL backends.

  • transparency::Bool = false adjusts how the plot deals with transparency. In GLMakie transparency = true results in using Order Independent Transparency.

  • fxaa::Bool = true adjusts whether the plot is rendered with fxaa (anti-aliasing).

  • inspectable::Bool = true sets whether this plot should be seen by DataInspector.

  • depth_shift::Float32 = 0f0 adjusts the depth value of a plot after all other transformations, i.e. in clip space, where 0 <= depth <= 1. This only applies to GLMakie and WGLMakie and can be used to adjust render order (like a tunable overdraw).

  • model::Makie.Mat4f sets a model matrix for the plot. This replaces adjustments made with translate!, rotate! and scale!.

  • space::Symbol = :data sets the transformation space for box encompassing the volume plot. See Makie.spaces() for possible inputs.

Examples

using CairoMakie
using Makie.GeometryBasics


f = Figure()
Axis(f[1, 1])

poly!(Point2f[(0, 0), (2, 0), (3, 1), (1, 1)], color = :red, strokecolor = :black, strokewidth = 1)

f

using CairoMakie
using Makie.GeometryBasics


f = Figure()
Axis(f[1, 1])

# polygon with hole
p = Polygon(
    Point2f[(0, 0), (2, 0), (3, 1), (1, 1)],
    [Point2f[(0.75, 0.25), (1.75, 0.25), (2.25, 0.75), (1.25, 0.75)]]
)

poly!(p, color = :blue)

f

using CairoMakie
using Makie.GeometryBasics


f = Figure()
Axis(f[1, 1])

# vector of shapes
poly!(
    [Rect(i, j, 0.75, 0.5) for i in 1:5 for j in 1:3],
    color = 1:15,
    colormap = :heat
)

f

using CairoMakie
using Makie.GeometryBasics


f = Figure()
Axis(f[1, 1], aspect = DataAspect())

# shape decomposition
poly!(Circle(Point2f(0, 0), 15f0), color = :pink)

f

using CairoMakie
using Makie.GeometryBasics


f = Figure()
Axis(f[1, 1]; backgroundcolor = :gray15)

# vector of polygons
ps = [Polygon(rand(Point2f, 3) .+ Point2f(i, j))
    for i in 1:5 for j in 1:10]

poly!(ps, color = rand(RGBf, length(ps)))

f

using CairoMakie
using Makie.GeometryBasics


f = Figure()
Axis(f[1, 1])

# vector of shapes
poly!(
    [Rect(i, j, 0.75, 0.5) for i in 1:5 for j in 1:3],
    color = :white,
    strokewidth = 2,
    strokecolor = 1:15,
    strokecolormap=:plasma,
)

f