Select lines that do not intersect a surface

Help please! I'm new in grasshopper!
I'm working in a project and the first stage is for me to define a path of lines. I established a source point for lines to revolve around it in a complete circle. If I move my point, the different intersection points with the same surfaces are identified. The problem is that I just need the lines that intersect the surface on a first plane. In other words, if a line goes over the surface and intersects a point behind I don't need it. For example, I uploaded a picture of a top view and marked with yellow the lines that I don't need but don't know how to select them, because the component trim only higlights the part inside the surface but if there is another surface behind it the line continues and is not selected... I want for the line to stop in the first intersection point...

So, how can I select those lines that do not intersect?