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# 3DPlot Utility

 Author Message    Topic Search   Topic Options chaitu1351 Newbie Joined: 02.Feb.2017 Location: India Using: AutoCAD 2017 Status: Offline Points: 3 Topic: 3DPlot Utility    Posted: 02.Feb.2017 at 07:14 I am using 3DPlot Utility for Surface Generation. In my case, the y upper limit is a function is current x value. Can anyone help solve this problem?There is an simple form of my problem0.1 < x < 0.50.1 < y < 2*x(defun z (x y) (list x y (+ x y)))How should write the code for 3D plot (3Dplot z 0.1 0.5 0.01 0.1 '?' 0.01)Thank you Vladimir Michl Moderator Group Arkance Systems CZ Joined: 26.Jul.2007 Location: Czech Republic Using: Autodesk software Status: Offline Points: 1996 Posted: 02.Feb.2017 at 07:43 If I understand this correctly, you can just modify your Z function so as Y does not go over 2*X. E.g. this way: (defun Z (x y) (list x (min y (* 2.0 x)) (+ x (min y (* 2.0 x))))) Vladimir Michl (moderator)Arkance Systems - arkance-systems.cz - Autodesk reseller chaitu1351 Newbie Joined: 02.Feb.2017 Location: India Using: AutoCAD 2017 Status: Offline Points: 3 Posted: 02.Feb.2017 at 07:59 Thanks for your suggestion. your answer solves half of the problemWhat should write in place of '?' (upper limit of y) in 3Dplot code(3Dplot z 0.1 0.5 0.01 0.1 '?' 0.01)Should I have to replace it by 2*(0.5) (ie., 2*max of x)?Also in your solution, The values that are greater than 2*x become same pointsAnd I think it might change the curvature.Is there an option to not to consider those points Thank you Vladimir Michl Moderator Group Arkance Systems CZ Joined: 26.Jul.2007 Location: Czech Republic Using: Autodesk software Status: Offline Points: 1996 Posted: 02.Feb.2017 at 14:13 It depends on what the max. value should be - probably just 0.5. Due to the meshing algorithm used it is currently not possible to completely skip/omit nodes. Vladimir Michl (moderator)Arkance Systems - arkance-systems.cz - Autodesk reseller