plot3d1 - 3D gray or color level plot of a surface
Note that the surface color treatement can be done using color_mode and color_flag options through the surface entity properties (see surface_properties ).
Note that axes boundaries can be customized through the axes entity properties (see axes_properties ).
Note that axes aspect can also be customized through the axes entity properties (see axes_properties ).
Note that, when specified, the ebox argument acts on the data_bounds field that can also be reset through the axes entity properties (see axes_properties ).
plot3d1 plots a surface with colors depending on the z-level of the surface. This special plot function can also be enabled setting color_flag=1 after a plot3d (see surface_properties )
Enter the command plot3d1() to see a demo.
// simple plot using z=f(x,y) t=[0:0.3:2*%pi]'; z=sin(t)*cos(t'); plot3d1(t,t,z) // same plot using facets computed by genfac3d [xx,yy,zz]=genfac3d(t,t,z); clf(); plot3d1(xx,yy,zz) // multiple plots clf(); plot3d1([xx xx],[yy yy],[zz 4+zz]) // simple plot with viewpoint and captions clf() ; plot3d1(1:10,1:20,10*rand(10,20),35,45,"X@Y@Z",[2,2,3]) // same plot without grid clf() plot3d1(1:10,1:20,10*rand(10,20),35,45,"X@Y@Z",[-2,2,3]) // plot of a sphere using facets computed by eval3dp deff("[x,y,z]=sph(alp,tet)",["x=r*cos(alp).*cos(tet)+orig(1)*ones(tet)";.. "y=r*cos(alp).*sin(tet)+orig(2)*ones(tet)";.. "z=r*sin(alp)+orig(3)*ones(tet)"]); r=1; orig=[0 0 0]; [xx,yy,zz]=eval3dp(sph,linspace(-%pi/2,%pi/2,40),linspace(0,%pi*2,20)); clf() plot3d(xx,yy,zz) e=gce(); e.color_flag=1; scf(2); plot3d1(xx,yy,zz) // the 2 graphics are similar
plot3d , gca , gce , scf , clf ,
J.Ph.C.