Value of the synthetic series, computed directly — synthetic_value • xyt

The closed form of what synthetic_reader() holds, for writing expected values in tests without going through a raster.

Usage

synthetic_value(
  x,
  y,
  i,
  method = c("simple", "bilinear"),
  res = 1,
  origin = c(0, 0)
)

Arguments

x, y: coordinates. For method = "simple" these are snapped to the containing cell centre; for "bilinear" they are used as given.
i: slice number, one-based. May be fractional, which is what ctstime = TRUE returns.
method: "simple" or "bilinear".
res: cell size of the series.
origin: lower left corner of the series.

Value

a numeric vector.

Examples

synthetic_value(0.7, 2.2, i = 3)
#> [1] 55.5
synthetic_value(0.7, 2.2, i = 3, method = "bilinear")
#> [1] 75.2