Description Usage Arguments See Also Examples
View source: R/circularstring.R
Make WKT circularstring objects
1 | circularstring(..., fmt = 16)
|
... |
A GeoJSON-like object representing a Point, LineString, Polygon, MultiPolygon, etc. |
fmt |
Format string which indicates the number of digits to display after the decimal point when formatting coordinates. Max: 20 |
Other R-objects:
geometrycollection()
,
linestring()
,
multilinestring()
,
multipoint()
,
multipolygon()
,
point()
,
polygon()
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | ## empty circularstring
circularstring("empty")
# circularstring("stuff")
# Character string
circularstring("CIRCULARSTRING(1 5, 6 2, 7 3)")
# data.frame
df <- data.frame(lon = c(-116.4, -118), lat = c(45.2, 47))
circularstring(df, fmt=1)
df <- data.frame(lon=c(-116.4, -118, -120), lat=c(45.2, 47, 49))
circularstring(df, fmt=1)
# matrix
mat <- matrix(c(-116.4,-118, 45.2, 47), ncol = 2)
circularstring(mat, fmt=1)
mat2 <- matrix(c(-116.4, -118, -120, 45.2, 47, 49), ncol = 2)
circularstring(mat2, fmt=1)
# list
x <- list(c(1, 5), c(6, 2), c(7, 3))
circularstring(x, fmt=2)
|
Attaching package: 'wellknown'
The following object is masked from 'package:graphics':
polygon
[1] "CIRCULARSTRING EMPTY"
[1] "CIRCULARSTRING(1 5, 6 2, 7 3)"
[1] "CIRCULARSTRING (-116.4 45.2, -118.0 47.0)"
[1] "CIRCULARSTRING (-116.4 45.2, -118.0 47.0, -120.0 49.0)"
[1] "CIRCULARSTRING (-116.4 45.2, -118.0 47.0)"
[1] "CIRCULARSTRING (-116.4 45.2, -118.0 47.0, -120.0 49.0)"
[1] "CIRCULARSTRING (1.00 5.00, 6.00 2.00, 7.00 3.00)"
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