Create a Ray in ECMA?

[wildspidee]

Andrew,

Husky provided a very nice demonstration for me and he was using Rays. I couldn't locate anything in the API documentation regarding Rays and the Line2P.js didn't help me.
Can I create a Ray using code?

Thanks,
Lori

[andrew]

Yes, you can create any supported entity type in scripts. Example ray that starts at 100,50 and extends towards the right (1,0). I.e. the second vector is a direction vector.

new RRayEntity(document, new RRayData(new RVector(100,50), new RVector(1,0));

[wildspidee]

I should have searched RRay in the documentation, it was there all along.

I tried to implement this and had some strange results. When I created horizontal guides using rays, I was able to use a circle intersection with them. My vertical guides made of rays don't work with the circle intersection.

You can see that the circle definitely intersects the rays.

RayIntersect.jpg (22.82 KiB) Viewed 6394 times

Here's the horizontal ones. There are two starting at the center out. The intersections are clear and found by QCAD.

RaysHoriz.jpg (26.78 KiB) Viewed 6394 times

I understand that Rays are probably virtual, being infinite, but it's strange that some work and others don't. Any ideas?

Lori

[andrew]

Please post the drawing file, thanks.

[wildspidee]

Andrew

Here's the dxf. It is being generated from one of my .js files. I just commented everything below the drawing of the circle out (since the next bit of code was the intersection call that fails).

Thank you,
Lori