lufc100 Posted February 9, 2013 Share Posted February 9, 2013 Hi, I'm trying to find the point where 2 lines intersect. I extend both lines so they cross. But when I try to draw a point over where they cross & select intersection on the snap menu, it will not snap to where the 2 lines cross. Any ideas folks? I've attached the drawing. Rgds, Martin. Ground Floor.dwg Quote Link to comment Share on other sites More sharing options...
dbroada Posted February 9, 2013 Share Posted February 9, 2013 are the Z values identical? If not "apparent intersecion" can be used (or flatten the lines). Quote Link to comment Share on other sites More sharing options...
eldon Posted February 9, 2013 Share Posted February 9, 2013 Just had a look at your drawing and at each line, there are two lines. When you try for any sort of Intersection snap, AutoCAD is confused as to which of the four lines it should use. Erase the duplicate lines, and try again. All the Z values are not identical, so as dbroada suggests, the Apparent Intersection snap will work. Quote Link to comment Share on other sites More sharing options...
CheSyn Posted February 11, 2013 Share Posted February 11, 2013 As eldon said, the lines are not coplanar and you have duplicates so AutoCAD is getting "confused." Use the "flatten" and "overkill" command to clean things up (assuming the duplicate lines are not needed and the lines can be on the same plane). Quote Link to comment Share on other sites More sharing options...
neophoible Posted February 11, 2013 Share Posted February 11, 2013 Also, note that APParent intersection does not require that the lines be extended so that they cross. It will figure that out for you, that is, where the Lines would intersect if they were extended. It can even work for Arcs. Quote Link to comment Share on other sites More sharing options...
Rajparamasivam Posted February 12, 2013 Share Posted February 12, 2013 You may get the solution from below link http://www.lee-mac.com/programs.html Raj Quote Link to comment Share on other sites More sharing options...
CheSyn Posted February 12, 2013 Share Posted February 12, 2013 ^ A program may help, but it is not needed in this case. It is overcomplicating a relatively simple issue. Quote Link to comment Share on other sites More sharing options...
lufc100 Posted February 12, 2013 Author Share Posted February 12, 2013 thanks everybody for there help, yeah i had too many lines drawen and cad could'nt distinguish between them Quote Link to comment Share on other sites More sharing options...
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