Hello, It is also possible to use the couple of solutions (auricle, ventricle) of Z=0: // Start of code nx=201; x=linspace(0,1,nx)'; // computation is done only for x=0 (it saves time for urgent needs!-) auricle=(sqrt(x)+sqrt(1-x.^2))/1.2; ventricle=(sqrt(x)-sqrt(1-x.^2))/1.2; X0=[x;x($:-1:1);-x;-x($:-1:1)]; Y0=[auricle;ventricle($:-1:1);ventricle;auricle($:-1:1)]; scf(); // plot of a symmetrical polygone xset("color",5); xfpoly(X0,Y0); // End of code
Thank you, I learned about "xfpoly" ! Denis -----Message d'origine----- De : users [mailto:users-boun...@lists.scilab.org] De la part de Hermes Envoyé : mercredi 27 septembre 2017 22:29 À : users@lists.scilab.org Objet : Re: [Scilab-users] Plot Heart Curve in Scilab Hi Rafa, Here I present the task solved: //start of code nx=300; ny=200; X0=linspace(-1.2,1.2,nx); Y0=linspace(-1.5,2,ny); X=X0.*.ones(ny,1); Y=(Y0.*.ones(nx,1))'; Z=(1.25*Y-sqrt(abs(X))).^2+X.^2-1; clf() a=gca(); a.x_label.text="X"; a.y_label.text="Y"; contour(X0,Y0,Z',[0,0]); *Polyline=a.children.children(1) Polyline.fill_mode="on"; Polyline.foreground=5; Polyline.background=5; Polyline.thickness=2;* a.view="2d"; //end code Two questions: in the Helps of Scilab, where can I find the hierarchy trees for the graphic objects? How do I copy from SciNote to the Forum scripts and maintain the format of it? Thank you Hermes -- Sent from: http://mailinglists.scilab.org/Scilab-users-Mailing-Lists-Archives-f2602246.html _______________________________________________ users mailing list users@lists.scilab.org http://lists.scilab.org/mailman/listinfo/users _______________________________________________ users mailing list users@lists.scilab.org http://lists.scilab.org/mailman/listinfo/users