QCAD.org Forum

Posted: **Fri Dec 29, 2017 7:21 pm**

Hello,

Could you tell me how can I check programatically if three points ([RVector]) are aligned.

I tried :

 var pointsCheck = [pointStart, pointEnd, pointsIntersec[0]]
  var polyline = new RPolyline(pointsCheck, false)
  var isAlign = RShape.isXLineShape(polyline);
  EAction.handleUserMessage("pointsCheck : " + pointsCheck)
  EAction.handleUserMessage("isAlign : " + isAlign)

But this way doesn't work for me.

Many thanks
Miro

Posted: **Fri Jan 05, 2018 12:13 am**

You could create a line from two points and then check if the third point is on the line using isOnShape:

Code: Select all

if (new RLine(p1, p2).isOnShape(p3, false)) { ... }

Posted: **Mon Jan 08, 2018 6:38 pm**

Thanks it works !

QCAD.org Forum

Check if three points ([RVector]) are aligned

Check if three points ([RVector]) are aligned

Re: Check if three points ([RVector]) are aligned

Re: Check if three points ([RVector]) are aligned