*I wrote it using a translator. Please understand if there is any
awkwardness in the sentence.*
One object is moving in the path A -> B, B->C, C-D (using AnimationPath).
And I need to know in what path the moving object is moving.
I think you need to know if the line and point intersect to figure this out.
I thought I should use LineSegmentIntersection to check whether a line and
a point intersect.
I found the part in LineSegmentIntersection that sets the line (path)
coordinates, but I don't find a function to check if the
LineSegmentIntersection and point intersect.
-------example--------
osg::Vec3d start(128.0, 37.0, 250); //wgs84, longitude, latitude,
altitude
osg::Vec3d end(128.0, 37.0005, 750); //wgs84, longitude, latitude, altitude
osg::ref_ptr<osg::Utill::LineSegmentIntersector> lis = NULL;
lis = new osgEarth::DPLineSegmentIntersector(start, end)
osgUtill::IntersectionVisitor iv(lis.get())
------------------------------------------
----------------------------------------------
osg::ref_ptr<osg::Node> node = _node
node->accept(iv);
if(lis->containsIntersections())
{
......................................
------------------------------------------------
I tried running it in the same way as above, but there was no true result
even though the object coordinates belong to the line coordinates.
I think the part of setting the point coordinates in that code is wrong.
How do I set the point coordinates to get the desired result?
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