gt_rotate: Rotate geometric objects In geometr: Generate and Modify Interoperable Geometric Shapes

Description

Rotate geometric objects by a certain angle about center coordinates

Usage

 `1` ```gt_rotate(obj, x = NULL, y = NULL, angle = NULL, fid = NULL, update = TRUE) ```

Arguments

 `obj` [`geometric object(1)`] the object to rotate. `x` [`numeric(1)`] the x position(s) to rotate about. `y` [`numeric(1)`] the y position(s) to rotate about. `angle` [`numeric(1)`] the counter-clockwise angle(s) by which `obj` shall be rotated (can be negative to rotate clockwise). `fid` [`integerish(.)`] in case only a subset of features shall be rotated, specify that here. `update` [`logical(1)`] whether or not to update the window slot of the resulting geom.

Value

`geom` of the rotated `obj`.

Other geometry tools: `gt_filter()`, `gt_locate()`, `gt_pull()`, `gt_reflect()`, `gt_scale()`, `gt_skew()`, `gt_stretch()`, `gt_translate()`
 ``` 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20``` ```# rotate all geoms visualise(gtGeoms\$polygon, linewidth = 3) newPoly <- gt_rotate(obj = gtGeoms\$polygon, x = 0, y = 0, angle = 135, update = FALSE) visualise(geom = newPoly, linecol = "green", new = FALSE) # rotate a single geom visualise(gtGeoms\$polygon, linewidth = 3) newPoly <- gt_rotate(obj = gtGeoms\$polygon, x = -10, y = 0, angle = -180, update = FALSE, fid = 2) visualise(geom = newPoly, linecol = "green", new = FALSE) # rotate different geoms about different centers by different angles visualise(gtGeoms\$polygon, linewidth = 3) newPoly <- gt_rotate(obj = gtGeoms\$polygon, x = c(0, -10), y = c(-10, 0), angle = c(75, -135), update = FALSE) visualise(geom = newPoly, linecol = "green", new = FALSE) ```