Description Usage Arguments Value See Also Examples
Stretch geometric objects by a scale factor in x and y dimension.
1 |
obj |
[ |
x |
[ |
y |
[ |
fid |
[ |
update |
[ |
geom
of the stretched obj
.
Other geometry tools:
gt_filter()
,
gt_locate()
,
gt_pull()
,
gt_reflect()
,
gt_rotate()
,
gt_scale()
,
gt_skew()
,
gt_translate()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | # stretch several features
visualise(gtGeoms$polygon, linewidth = 3)
newPoly <- gt_stretch(obj = gtGeoms$polygon, x = 0.5, y = 0.2,
update = FALSE)
visualise(geom = newPoly, linecol = "green", new = FALSE)
# stretch a single feature
visualise(gtGeoms$polygon, linewidth = 3)
newPoly <- gt_stretch(obj = gtGeoms$polygon, x = 0.5, fid = 2, update = FALSE)
visualise(geom = newPoly, linecol = "green", new = FALSE)
# stretch feature separately
visualise(gtGeoms$polygon, linewidth = 3)
newPoly <- gt_stretch(obj = gtGeoms$polygon,
x = c(0.2, 1),
y = c(1, 0.2),
update = FALSE)
visualise(geom = newPoly, linecol = "green", new = FALSE)
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