fromPoint() creates and returns a new
DOMPointReadOnly object given a source point.
You can also create a new
DOMPointReadOnly object using the
new DOMPointReadOnly() constructor.
DOMPointReadOnlyinstance, or an object containing the following properties, from which to take the values of the new point's properties:
An unrestricted floating-point value indicating the
x-coordinate of the point in space. This is generally the horizontal coordinate, with positive values being to the right and negative values to the left. The default value is
An unrestricted floating-point number providing the point's
y-coordinate. This is the vertical coordinate, and barring any transforms applied to the coordinate system, positive values are downward and negative values upward toward the top of the screen. The default is
An unrestricted floating-point value which gives the point's
z-coordinate, which is (assuming no transformations that alter the situation) the depth coordinate; positive values are closer to the user and negative values retreat back into the screen. The default value is
wperspective value, given as an unrestricted floating-point number. The default is
DOMPointReadOnly object (which is identical to the source point).
Creating a 2D point
Creating a 3D point using an existing point
This example creates a point,
origPoint, of type
new DOMPoint(). That
point is then used as the input for
fromPoint() to create a new point,
const origPoint = new DOMPoint(25, 25, 100, 0.5); const newPoint = DOMPointReadOnly.fromPoint(origPoint);
|Geometry Interfaces Module Level 1 |
BCD tables only load in the browser