Drawing Parabolic curve in Autocad Drawing Parabolic curve in Autocad sro2ck (Civil/Environmental) (OP) 31 Jan 14 03:08 can any one suggest tutorial links or materials for learning to draw parabolic curve in Autocad? RE: Drawing Parabolic curve in Autocad IFRs (Petroleum) 31 Jan 14 07:13 I'd probably use Excel or OpenOffice to create a list of points and import them. RE: Drawing Parabolic curve in Autocad Occupant (Mechanical) 31 Jan 14 09:10 Yes, that's what I would do. You create the X-Y coordinate points at intervals acceptable to you in Excel let's say in columns A&B. In row 1 - column D (or so) you write "_pline" and in the next row you do per attached. You can then fill all the other rows with the "Fill-down" command in one fell swoop. Then you put column "D" to the clipboard and subsequently into a text editor and save the file as e.g. Parabola.scr. Finally you insert this polyline into your drawing with the "Run Script" command. http://files.engineering.com/getfile.aspx?folder=4d18960a-2b91-444f-9946-a7 RE: Drawing Parabolic curve in Autocad dik (Structural) 31 Jan 14 11:10 I'll try that for a catenary... thanks. Dik RE: Drawing Parabolic curve in Autocad CarlB (Civil/Environmental) 31 Jan 14 12:35 Another way to get the points coordinates from Excel to AutoCAD is to just copy and paste. In AutoCAD start the "pline" command, copy the range with x,y points from Excel, paste into AutoCAD's command line. You may need an "enter" to end the command. RE: Drawing Parabolic curve in Autocad Occupant (Mechanical) 31 Jan 14 15:03 Oh, I forgot to say to turn "Object Snap" off when you do that otherwise it might create a mess. RE: Drawing Parabolic curve in Autocad rollupswx (Mechanical) 31 Jan 14 17:42 You probably don't need very many points. I would guess no more than 5. If you use more than that - post your example here. RE: Drawing Parabolic curve in Autocad leo5cn (Structural) 21 May 14 21:34 Or you could make an auto lisp macro. RE: Drawing Parabolic curve in Autocad rollupswx (Mechanical) 27 May 14 01:30 You could Slice a cone. RE: Drawing Parabolic curve in Autocad VMichl (Computer) 28 May 14 04:37 You can use our 2DPlot utility to automate plotting of parametric 2D curves (and 3DPlot for 3D surfaces). See: http://www.cadforum.cz/cadforum_en/sinusoid-hypotr... Vladimir Michl, www.cadstudio.cz RE: Drawing Parabolic curve in Autocad SEANT (Mechanical) 20 Jun 14 04:44 Another option is to use a Spline (Method = CV, Degree = 2). This will produce a mathematically/geometrically perfect parabola curve that will allow accurate Perp and Tan OSNAPs. Examine the attached example to understand construction method. http://files.engineering.com/getfile.aspx?folder=98057f54-314c-4ffa-bc62-93 RE: Drawing Parabolic curve in Autocad MacGruber22 (Structural) 4 Jul 14 11:41 SEANT: Elegant solution.