Intersection face with line in front of door

[Anonymous]

I'm trying to find the intersection of the line with the face. But sometimes the line gets in the door and therefore there is no crossing. I find the coordinates of the starting point:

BoundingBoxUV bboxUV = face1.GetBoundingBox();

UV center = (bboxUV.Max + bboxUV.Min) / 2.0;

location = faceinlist.Evaluate(center);

XYZ pt2 = location + 0.82 * normal;

Line line = Line.CreateBound(location, pt2);

 SetComparisonResult intersectionPoint = face2.Intersect(line);
                                        if (intersectionPoint != SetComparisonResult.Disjoint)
                                        {

How to provide for such cases when the doors are in the middle? I guess that it is necessary to find several points in different places, but I did not succeed

[jeremytammik]

Dear Vadim,

Your question leaves a lot of room for guesswork.

When you say 'face' I assume you mean the face of a wall.

When you say 'door in the middle', I assume that you mean the door is in the middle of the wall, and a ray that you shoot to try to hit the wall goes through the door opening, so that no intersection is found.

If those assumptions are correct, I see (at least) two choices:

• Temporarily remove all the openings from the wall in a transaction that is rolled back afterwards before shooting the ray; The Temporary Transaction Trick: http://thebuildingcoder.typepad.com/blog/about-the-author.html#5.53
• Use the wall location curve and intersect the ray with an imaginary vertical face standing on that instead of using the real wall faces.

I hope this helps.

Cheers,

Jeremy

[Anonymous]

Yes, I'm trying to find the intersections of the vector from the side of the room with the edge of the wall.
How i can  use the wall location curve and intersect the ray with an imaginary vertical face?

since I will need to study a wall that has intersections with a vector from the side of the room with the edge of the wall for the presence of doors in it.

[Anonymous]

I tried to remove the doors from the wall, but did not get the intersection

[Anonymous]

I tried to use a nested transaction, but got an error
An unhandled exception of type 'System.AccessViolationException' occurred in RevitDBAPI.dll
Additional information: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.