For each x element, determines the width and height of a bounding box that's big enough
to (just) enclose the provided text. Unit is pixel.
Usage
m_str_extents(
x,
fontname = "sans",
fontsize = 10,
bold = FALSE,
italic = FALSE,
fontfile = NULL
)Arguments
- x
Character vector of strings to measure
- fontname
Font name. A vector of character to match with x.
- fontsize
Font size. A vector of numeric to match with x.
- bold, italic
Is text bold/italic?. A vector of logical to match with x.
- fontfile
Font file. A vector of character to match with x.
Examples
# \donttest{
# The first run can be slow when font caches are missing
# as font files are then being scanned to build those font caches.
m_str_extents(letters, fontsize = 1:26)
#> [,1] [,2]
#> [1,] 0.612793 0.5742188
#> [2,] 1.269531 1.5478516
#> [3,] 1.649414 1.7226562
#> [4,] 2.539062 3.0957031
#> [5,] 3.076172 2.8710938
#> [6,] 2.112305 4.5585938
#> [7,] 4.443359 5.3764648
#> [8,] 5.070312 6.0781250
#> [9,] 2.500488 6.8378906
#> [10,] 2.778320 9.6777344
#> [11,] 6.370117 8.3574219
#> [12,] 3.333984 9.1171875
#> [13,] 12.663574 7.2807617
#> [14,] 8.873047 7.8408203
#> [15,] 9.177246 8.6132812
#> [16,] 10.156250 12.2890625
#> [17,] 10.791016 13.0571289
#> [18,] 7.400391 10.0810547
#> [19,] 9.898926 10.9101562
#> [20,] 7.841797 14.0429688
#> [21,] 13.309570 12.0585938
#> [22,] 13.019531 12.0312500
#> [23,] 18.811035 12.5781250
#> [24,] 14.203125 13.1250000
#> [25,] 14.794922 18.8720703
#> [26,] 13.647461 14.2187500
m_str_extents(letters[1:3],
bold = c(TRUE, FALSE, TRUE),
italic = c(FALSE, TRUE, TRUE),
fontname = c("sans", "sans", "sans") )
#> [,1] [,2]
#> [1,] 6.748047 5.742188
#> [2,] 6.347656 7.739258
#> [3,] 5.927734 5.742188
# }