The DOMPointReadOnly
interface's z
property holds the depth coordinate, z, for a read-only point in space.
If your script needs to be able to change the value of this property, you should instead use the DOMPoint
object.
In general, positive values of z
mean toward the user (out from the screen), and negative values of z
mean away from the user (into the screen), assuming no transforms have resulted in a reversal.