rrate | R Documentation |
Compute the relief rate from a sub-sample of a 3d triangle mesh. For instance, the relief rate could be computed from the portion of a molar above the lowermost point of its central basin, compared to the whole tooth.
rrate(uncropped, cropped, origin = TRUE)
uncropped |
object of class mesh3d. Should entirely contain the 'cropped' argument. |
cropped |
object of class mesh3d. Should be part of the 'uncropped' argument. |
origin |
logical, if TRUE both cropped and uncropped mesh are translated along the z-axis
so that the lowest z of the uncropped mesh = 0; see |
A single relief rate value.
doi: 10.1002/ajpa.23916Thiery et al. (2019)
medelev <- median(elev(dkmodel$cusp)) basins <- dkcrop(dkmodel$cusp, which(elev(dkmodel$cusp) < medelev)) cusps <- dkcrop(dkmodel$cusp, which(elev(dkmodel$cusp) > medelev)) rrate(dkmodel$cusp, basins) rrate(dkmodel$cusp, cusps)
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