Re: AW: more question about plotting
- To: mathgroup at smc.vnet.net
- Subject: [mg49068] Re: AW: more question about plotting
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Wed, 30 Jun 2004 05:34:14 -0400 (EDT)
- Organization: Universitaet Leipzig
- References: <cbokbj$495$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
- Sender: owner-wri-mathgroup at wolfram.com
Hi, Needs["Calculus`Integration`"] Plot3D[ (x + y)*Boole[y < 10 && y < 15 - 3x/5 && y > -3 + 3x/5], {x, -1, 15}, {y, -5, 15}, PlotPoints -> 60 ] Plot3D[ {(x + y), RGBColor[Boole[y < 10 && y < 15 - 3x/5 && y > -3 + 3x/5], 1, 1]}, {x, -1, 15}, {y, -5, 15}, PlotPoints -> 60] Block[{$DisplayFunction = Identity}, lst = Join[{Plot3D[ (x + y), {x, -1, 15}, {y, -5, 15}, Mesh -> False]}, ParametricPlot3D[#, {x, -1, 15}] & /@ ( {x, y, (x + y) + 0.01} /. ({ y -> # } & /@ {10, 15 - 3x/5, -3 + 3x/5}))] ]; Show[lst] Regards Jens Ron Haus wrote: > > Okay, how about this? > > Topic: linear Optimization > > I'm looking for a solution in graphic form, therefore, draw the main > function (e.g. f(x,y):=x+y) and all the constrains (e.g. f1(x):=10, > f2(x):=15-3x/5, f3(x):=-3+3x/5) in the same 3D Plot. The constraints should > be displayed one the surface of the main function (and/or on the > button(x-y-axis). If I could highlight the surrounded area, it would be > perfect. > Any idea? > > Here you can see what I mean: > http://home.arcor.de/ronhaus/ > > also as a PDF > http://home.arcor.de/neuendorf2000/MathCAD.pdf > > THX > > -----Ursprüngliche Nachricht----- > Von: Steven M. Christensen [mailto:steve at smc.vnet.net] > Gesendet: Freitag, 25. Juni 2004 23:51 > An: ronhaus at arcor.de > Betreff: Re: more question about plotting > > It is a strict rule of this mailing list that we do not > discuss other systems like MathCAD. > > Moderator > > I used to work with MathCAD 11 (ger) and now try to do the same stuff in > Mathematica (since it is supposed to be better ;) > > But, it is way harder than MathCAD.... > > Here is what I did in MathCAD (but can't in Mathematica) > http://home.arcor.de/ronhaus/ > > also as a PDF > http://home.arcor.de/neuendorf2000/MathCAD.pdf > > May someone help me out getting "linear optimization" done in mathematica > (especially the plotting)? > > THX