sendPointToPlane

sendPointToPlane(point, from?, to?): Point

Defined in: util/misc/planeChange.ts:36

Sends a point from the source coordinate plane to the destination coordinate plane.
From the canvas/viewer’s perspective the point remains unchanged.

Parameters

point

Point

from?

TMat2D = iMatrix

plane matrix containing object. Passing undefined is equivalent to passing the identity matrix, which means point exists in the canvas coordinate plane.

to?

TMat2D = iMatrix

destination plane matrix to contain object. Passing undefined means point should be sent to the canvas coordinate plane.

Returns

Point

transformed point

Example

Send point from canvas plane to group plane

var obj = new Rect({ left: 20, top: 20, width: 60, height: 60, strokeWidth: 0 });
var group = new Group([obj], { strokeWidth: 0 });
var sentPoint1 = sendPointToPlane(new Point(50, 50), undefined, group.calcTransformMatrix());
var sentPoint2 = sendPointToPlane(new Point(50, 50), iMatrix, group.calcTransformMatrix());
console.log(sentPoint1, sentPoint2) //  both points print (0,0) which is the center of group