tg_poly

tg_sys

Struct tg_poly 

Source 
pub struct tg_poly { /* private fields */ }
Expand description

A polygon consists of one exterior ring and zero or more holes.

Creating

To create a new polygon use the tg_poly_new() function.

struct tg_poly *poly = tg_poly_new(exterior, holes, nholes);

Upcasting

A tg_poly can always be safely upcasted to a tg_geom; allowing it to use any tg_geom_*() function.

struct tg_geom *geom = (struct tg_geom*)poly; // Cast to a tg_geom

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