Magnetized Point for an Intersection

[Daniel Choi]

Hello,

https://jsxgraph.uni-bayreuth.de/wiki/index.php/Magnetized_points

The link above is an example of how to use attractors to magnetize points to an point,line,circle, etc.

Is there any way that a JSX.Intersection can have the same behavior as example in the link above. (For example, if a two lines intersected each other, and the intersection would magnetize to a point/line when one of the intersecting lines moved?)

https://jsxgraph.uni-bayreuth.de/docs/symbols/Intersection.html

This link is the docs for the Intersection element, but it does not have an attractor attribute. 

Is there way to have magnetizing behavior for the intersection element? Am I missing something? is there some kind of work around?

Thanks so much

[Alfred Wassermann]

It is not possible to let intersection points react to attractors, because of the hierarchy of the construction.

But it may be poossible that you can fake this situation with a glider on one line which in turn is one of the defining points of the second line:

var li1 = board.create('line', [[-3, -3], [4,1]]);
var glide1 = board.create('glider', [-2, -2, li1], {fixed: true, color: 'blue', withLabel: false});
var glide2 = board.create('glider', [2, 0, li1], {
            withLabel: false,
      attractors: [glide1],
      attractorDistance: 0.8,
      snatchDistance: 0.3
      });
var p = board.create('point', [2, 3], {withLabel: false});
var li2 = board.create('line', [glide2, p], {fixed: false});
board.create('group', [p, glide2]);

See it live at https://jsfiddle.net/7ge48L3b/1/

Best wishes,

Alfred