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Asymptote can draw standard shapes (spheres, cylinders, cubes, etc) which you can then scale, rotate, and shift to create many other shapes. \documentclass[border=10pt]{standalone} \usepackage[inline]{asymptote} \begin{document} \begin{asy} import three; settings.render = 0; //Setup View size(200); currentprojection=orthographic(5,4,2); //Draw Axes pen thickblack =… Continue Reading →

\documentclass[border=10pt]{standalone} \usepackage[inline]{asymptote} \begin{document} \begin{asy} // settings.outformat=”pdf”; // settings.prc = false; // settings.render = 16; settings.render = 0; import three; import graph; size(8cm,0); currentprojection = orthographic(2,0,10, up=Y); draw(-2X–2X,arrow=Arrow3(),L=Label(“$X$”, position=EndPoint)); draw(-2Y–2Y,arrow=Arrow3(),L=Label(“$U$”, position=EndPoint)); draw(-2Z–2Z); label(“$w \to \infty$”,(2,1,0)); draw((0.5,-1,1)–(0.7,-0.2,1),arrow=Arrow3(size=5bp),L=Label(“$\Pi_w$”, position=BeginPoint)); draw((1.5,-1.3,0)–(1.3,-0.8,0),arrow=Arrow3(size=5bp),L=Label(“$X+U = L \mathrm{e}^{w/L}$”,… Continue Reading →

\documentclass[border=10pt]{standalone} \usepackage[inline]{asymptote} \begin{document} \begin{asy} settings.render=0; unitsize(1cm); import three; draw(Label(“$x$”,EndPoint,align=SW),O–2.5X,Arrow3); draw(Label(“$y$”,EndPoint),O–4Y,Arrow3); draw(Label(“$z$”,EndPoint),O–3Z,Arrow3); triple A=(1,sqrt(3),0), B=2Z; path3 p=plane(A,B); draw(surface(p),magenta+opacity(.2)); draw(p,magenta+.6pt); label(“$x\sqrt{3} -y =0$”,A+B,NE,magenta); draw(Label(scale(.6)*”$1$”,EndPoint,align=NW,black),A–(A.x,0,0),gray+dashed); draw(Label(scale(.6)*”$\sqrt{3}$”,EndPoint,align=.4dir(60),black),A–(0,A.y,0),gray+dashed); \end{asy} \end{document} Source: TeX.SE Author: Black Mild (License) See also: Original Source

\documentclass[border=10pt]{standalone} \usepackage[inline]{asymptote} \begin{document} \begin{asy} settings.render=0; import graph3; currentprojection=orthographic(2,2,.5,zoom=.9); unitsize(1cm); pen plane1=red, plane2=cyan, plane3=blue,pcone=yellow; real a=1.8,h=3; surface c=scale(a,a,h)*shift(0,0,-1)*unitcone; draw(zscale3(-1)*c,pcone+opacity(.5)); draw(c,pcone+opacity(.3)); real b=2.2; path3 g=scale3(b/a)*unitcircle3; draw(shift(0,0,b)*g,plane1+1pt); draw(shift(0,0,-b)*g,plane3+1pt); surface pl=shift(-3,-4,0)*scale(6,8,0)*unitplane; draw(shift(0,0,b)*pl,plane1+opacity(.3)); draw(pl,plane2+opacity(.3)); draw(shift(0,0,-b)*pl,plane3+opacity(.3)); draw(Label(“$\eta_1$”,EndPoint),O–4*X,Arrow3); draw(Label(“$\eta_2$”,EndPoint),O–5*Y,Arrow3); draw(Label(“$\eta_3$”,EndPoint,align=E),-3Z–4*Z,Arrow3); \end{asy} \end{document} Source: TeX.SE Author: Black Mild… Continue Reading →

\documentclass[border=10pt]{standalone} \usepackage{asymptote} \begin{document} \begin{asy}[inline=true] import math; import graph; struct construct{ pair[] loc; string[] name; pair[] namePos; guide[] straight; pen[] straightPen; guide[] circ; pen[] circPen; pen thinpen; bool pqr(pair p, pair q, pair r){ return (p.x*(q.y-r.y)+(r.y-p.y)*q.x+r.x*(p.y-q.y))>0; }; pair lastpoint(){ assert(loc.length>0); return… Continue Reading →

\documentclass[border=10pt]{standalone} \usepackage{asymptote} \begin{document} \begin{asy}[inline=true] settings.tex=”pdflatex”; import graph; import math; import palette; size(12cm); import fontsize;defaultpen(fontsize(8pt)); real xmin=-3.6, xmax=5; real ymax=1.6, ymin=-ymax; real dxmin=0, dxmax=0.1; real dymin=0.1, dymax=dymin; xaxis(“$x$”,xmin-dxmin,xmax+dxmax,RightTicks(Step=1,step=0.2,OmitTick(0,2.2)),above=true); yaxis(“$y$”,ymin-dymin,ymax+dymax,LeftTicks (Step=1,step=0.2,OmitTick(0,1.4)),above=true); real[] n={-3, -2, -1, 0, 1, 2, 3}; pen[] p=Gradient(n.length, blue,red);… Continue Reading →

\documentclass[border=10pt]{standalone} \usepackage{asymptote} \begin{document} \begin{asy}[inline=true] import graph; import contour; import palette; defaultpen(fontsize(10pt)); size(14cm,8cm,IgnoreAspect); pair xyMin=(1,74); pair xyMax=(3,86); real f(real x, real y) {return -2.051^3*1000/(2*3.1415*(2.99*10^2)^2)/(x^2*Cos(y)^2);} int N=200; int Levels=16; defaultpen(1bp); bounds range=bounds(-3,-0.10); // min(f(x,y)), max(f(x,y)) real[] Cvals=uniform(range.min,range.max,Levels); guide[][] g=contour(f,xyMin,xyMax,Cvals,N,operator –); pen[] Palette=Gradient(Levels,rgb(0.3,0.06,0.5),rgb(0.9,0.9,0.85));… Continue Reading →

\documentclass[border=10pt]{standalone} \usepackage{asymptote} \begin{document} \begin{asy}[width=\the\linewidth,inline=true] settings.outformat=”pdf”; settings.render=0; settings.prc=false; size(7cm); import graph; import patterns; import fontsize; defaultpen(fontsize(9pt)); texpreamble(“\usepackage{lmodern}”); pen hatchPen=orange+0.4bp; pen borderPen=deepblue+1bp; pen arrPen=red+1bp; pen areaBG=palegreen; pair[] dots={ (25,280), (60,280), (25,140), }; pair star=(60,137); guide[] arrows={(25,265)–(25,160), (60,265){dir(-90)}..(60,200)..(40,160), }; guide[] markedArrows={ (150,280)–(200,280), (150,140)–(200,140),… Continue Reading →

\documentclass[border=10pt]{standalone} \usepackage{asymptote} \begin{document} \begin{asy}[width=\the\linewidth,inline=true] settings.outformat=”pdf”; settings.render=0; settings.prc=false; import solids; import graph3; usepackage(“newtxmath”); size(200,400); real r=3; real h=2.5pi; currentprojection=orthographic(8,2,4); revolution R=cylinder(O,r,h); // The circular helix triple f(real t){ real a=r*cos(t); real b=r*sin(t); real c=t; return (a,b,c); } real k=7; path3 plane=(k,k,0)–(k,-k,0)–(-k,-k,0)–(-k,k,0)–cycle;… Continue Reading →

\documentclass[border=10pt]{standalone} \usepackage{asymptote} \begin{document} \begin{asy}[width=\the\linewidth,inline=true] settings.render=8; settings.prc=false; size(8cm); import three; import graph; import fontsize; defaultpen(fontsize(9pt)); pen[] fillpen={ red, orange, yellow, green, lightblue, blue, darkblue }; real xmin=0, xmax=20, ymin=0, ymax=20; xaxis(xmin,xmax,RightTicks(Step=10,step=5)); yaxis(ymin,ymax, LeftTicks(Step=10,step=5)); real ra(real t, real a){return 3*a*sin(t)*cos(t)/(sin(t)^3+cos(t)^3);}; real r(real);… Continue Reading →