Trying to make lines exist or not exist based on possible intersection.

I am creating lines that may or may not intersect surfaces.

If the lines don't intersect the surfaces I want them to remain.

If the lines do intersect the surfaces I want them to not exist.

To visualize what I'm trying to do, picture an eave blocking or not blocking a ray of sunlight depending on the angle of the sun.

I might be on the right track with using the surface|line tool, which creates a point value when there is an intersection I want the line to not exist(false), and when there is no intersection it has an empty value when I want the line to exist (true).

I can figure out how to make a point value become false, but I cannot figure out how to make no value become true, or anything for that matter.

Trying to convert this to boolean, am I on the right track of what I want to achieve or is there some other way and I need to back up a few steps?

I also figure that even if the line that creates the intersection has to exist, that is fine I will just have it's preview off and not bake it, I can then create a second identical line that is true/false based on whether there is an intersection or not.

Replies to This Discussion

Permalink Reply by Charlene Mendez on October 27, 2013 at 5:00pm

I attached where I'm at right now, even if this isn't the right path.

I can create true/false values when there is a value.

Permalink Reply by Charlene Mendez on October 27, 2013 at 5:10pm

Here when I make the angle of the line not intersect with the surface, I have no values, no true/false options.

I know my true false method might be a little crude, but I didn't want to mess around with it too much if this isn't even the right direction to take to solve this problem.

Thank you!!