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Found 6 results

  1. I'm having a hard time: I'm creating a middle line in the center of a road route, to verify the distance traveled by trucks. To do this, I create a 3dpolyline by connecting the edges of the path and then create a 3D POLYLINE by clicking on the midpoint of each polyline to draw a median route. As they are many, it is being a complicated job, since I have to click on the midpoint of each one to generate the 3D line that I need. Is there any lisp that can already do this, remembering that it needs to be 3D?
  2. Good morning, I have a big problem: I need to make an outline of which was advanced on a road. But I'm doing this activity manually. I tried to use the OVERKILL, but it only deletes the 3dpolylines/polylines that are overlapping and not both. I need only what is different between them and make a REGION or a Closed Polyline of the result. Can you help me? Is there any lisp or a command that can make this? I'm sending the attached file of what I want in order to make an example. Example.dwg
  3. Hello All!!! I am a road engineer and I know that many people have this problem: my topographical survey is in 2d with points and polylines not having Z elevation, the points are blocks with elevation as an atribute. I managed with the help of EATTEXT command in Autocad to extract a field report data containing X, Y, Z, and Point Code. With a lisp I inserted the points into Autocad and now are all 3D points. The lines are still 2D polylines(road edges, retaining walls, ditches etc) and I want to ask your help in writing a lisp ( my knowledge of composing lisps is 0 ) to elevate these polyline to the levels of the points(the polyline vertexes matches the points) for obtaining the DTM. I know one way that I can draw the 3D poly is by snaping to the points but i want to use an automatic mode as the number of polylines is high.
  4. Evening All I work as a design assistant for a West End Set Designer who loves working in forced perspective & vanishing points. My question is how do I slice/trim a 3d polyline that runs through a solid. I basically want to cut the line once it touches the face of the solid. I would be also happy to add a node. Attached is a small example of the working file. Look forward to your responses Cheers James EXAMPLE.dwg
  5. Hello everyone, I am quite new here in this forum and I was expecting some help. Recently I've been working with water distribution models and I just faced a wasting time problem when working with elevation data. People in my office have to look for every elevation data in the topografic dwg and then write down all those numbers one by one in an Excel spreadsheet. I think this process is kinda waste of time, so I came here looking for some help. If anyone could help me I would apreciate it very much. Basicaly, what I do actualy need is a lisp routine capable of converting a 3Dpolyline to a 2Dpolyline but changing also the 3D polylines' vector Z to the 2D polylines' elevation. For example: if I have a 3d polyline with vector Z value of 350 (meters), I want the lisp program to turn it into a 2D polyline with Elevation value of 350. Thanks in advance..
  6. I'm working with C3D 2011. I have a large number of EP shots along a roadway. I drew a lwpolyline connecting each point with a node snap (the entire line is at the elevation of the first point). I need each polyline vertex at the EP elevation. Is there a way to convert my existing lwpolyline to a 3dpolyline AND have each vertex of the 3dpolyline inherit the elevation of the EP point/node that it was snapped to without redrawing the whole line using the 3dpoly command? Thanks all
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