Function to fill a ternary plot with coloured tiles. Useful in combination with
`TernaryPointValues`

and `TernaryContour`

.

```
TernaryTiles(
x,
y,
down,
resolution,
col,
direction = getOption("ternDirection", 1L)
)
```

- x, y
Numeric vectors specifying

*x*and*y*coordinates of centres of each triangle.- down
Logical vector specifying

`TRUE`

if each triangle should point down (or right),`FALSE`

otherwise.- resolution
The number of triangles whose base should lie on the longest axis of the triangle. Higher numbers will result in smaller subdivisions and smoother colour gradients, but at a computational cost.

- col
Vector specifying the colour with which to fill each triangle.

- direction
(optional) Integer specifying the direction that the current ternary plot should point: 1, up; 2, right; 3, down; 4, left.

Other functions for colouring and shading:
`ColourTernary()`

```
TernaryPlot()
TernaryXRange()
#> [1] -0.5 0.5
TernaryYRange()
#> [1] -0.0669873 0.9330127
TernaryTiles(0, 0.5, TRUE, 10, "red")
xy <- TernaryCoords(c(4, 3, 3))
TernaryTiles(xy[1], xy[2], FALSE, 5, "darkblue")
```