Polygon

WLJS

Execution environment

Supports dynamics

wljs-graphics-d3

Package

Polygon[{p1, p2, ...}]

represents a filled polygon with points p1, p2...

Polygon[{{p1, p2, ...}, {n1, n2, ...}}]

Example

pol = Polygon[{{1, 0}, {0, Sqrt[3]}, {-1, 0}}];
Graphics[pol]

h[x_, y_] := Polygon[Table[{Cos[2 Pi k/6] + x, Sin[2 Pi k/6] + y}, {k, 6}]];

Graphics[{EdgeForm[Blue], LightBlue, Table[h[3 i + 3 ((-1)^j + 1)/4, Sqrt[3]/2 j], {i, 5}, {j, 10}]}]

Digital petals

With[{d = 2 Pi/12}, 
 Graphics[
  Table[{EdgeForm[Black], Hue[(-11 + q + 10 r)/72., 1, 0.5], 
    Polygon[{(8 - r) {Cos[d (q - 1)], 
        Sin[d (q - 1)]}, (8 - r) {Cos[d (q + 1)], 
        Sin[d (q + 1)]}, (10 - r) {Cos[d q], Sin[d q]}}]}, {r, 6}, {q,
     12}]]]

Parameters

RGBColor

filling color

Opacity

global opacity of an object

EdgeForm

stroke color

Indexed geometry

Using GraphicsComplex one can specify only faces with indexes for each polygon, while vertex data is stored in a separate array.

For example

GraphicsComplex[{{0,0}, {1,0}, {1,1}}, Polygon[{{1,2,3}}]] // Graphics

It is common use case, when vertices are colored and there are many polygons on the screen.

Dynamics

It fully support dynamics when a Polygon represents 1 polygon (a set of animated polygon per 1 expression is not supported).