x3p_sample: Sample from an x3p object
In x3ptools: Tools for Working with 3D Surface Measurements

Description Usage Arguments Value Examples

Sample from an x3p object

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x3p_sample(x3p, m = 2, mY = m, offset = 0, offsetY = offset)

sample_x3p(x3p, m = 2, mY = m, offset = 0, offsetY = offset)

`x3p`	x3p object
`m`	integer value - every mth value is included in the sample
`mY`	integer value - every mth value is included in the sample in x direction and every mYth value is included in y direction
`offset`	integer value between 0 and m-1 to specify offset of the sample
`offsetY`	integer value between 0 and mY-1 to specify different offsets for x and y direction

down-sampled x3p object

logo <- x3p_read(system.file("csafe-logo.x3p", package="x3ptools"))
dim(logo$surface.matrix)
# down-sample to one-fourth of the image:
logo4 <- x3p_sample(logo, m=4)
dim(logo4$surface.matrix)
## Not run: 
x3p_image(logo)
x3p_image(logo4)

## End(Not run)