triplot

Draw the triangulation mesh itself — the edges (and optionally nodes) connecting a set of scattered points. Useful for inspecting how tri* methods triangulate your data.

Matplotlib: Axes.triplot.

Axes: rectangular (ax) and ternary (axtri).

Coordinates

Key	Required	Meaning
x	yes¹	Point x
y	yes¹	Point y

¹ On a ternary axis use left / right / bottom instead of x / y.

Style

Key	Type	Purpose
color	color	Edge (and marker) color
linewidth / lw	float	Edge width
linestyle	string	Edge style
marker	string	Node marker (omit for edges only)
alpha	0–1	Opacity
zorder	number	Draw order

Any other Axes.triplot keyword is also accepted.

Example

- name: mesh
  data:
    - source: df
  axes: ax
  method: triplot
  coordinates:
    x: {expr: xx}
    y: {expr: yy}
  style:
    color: gray
    linewidth: 0.3

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See also: Plot Methods index · tripcolor · tricontour