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{SECT 0 {PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 256 "" 0 "" {TEXT 256 
22 "Calulus Worksheet III\n" }}{SECT 0 {PARA 3 "" 0 "" {TEXT -1 212 "I
n this worksheet we give a few examples for the use of the 3D visualiz
ation\ntool Geomview. First a link beween Maple and Geomview has to be
 established\nby the command \"readlib(gvplot):\" (gv stands for geomv
iew)." }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 16 "readlib(gvplot):" }
}}}{SECT 0 {PARA 3 "" 0 "" {TEXT -1 76 "As a first example, we conside
r graphic primitives in the plottools package:" }}{EXCHG {PARA 0 "> " 
0 "" {MPLTEXT 1 0 28 "with(plots):with(plottools):" }}}{EXCHG {PARA 0 
"> " 0 "" {MPLTEXT 1 0 84 "display(dodecahedron([0,0,0]),\nscaling=con
strained, style=patch, lightmodel=light2);" }}}{EXCHG {PARA 0 "> " 0 "
" {MPLTEXT 1 0 86 "display(cuboid([0,0,0],[1,1,1]),\nscaling=constrain
ed, style=patch, lightmodel=light4);" }}}{EXCHG {PARA 0 "> " 0 "" 
{MPLTEXT 1 0 114 "n:=5:display(\{seq(\ncuboid([0,0,k],[n-k,n-k,k+1]),k
=1..n-1)\},\nscaling=constrained, style=patch, lightmodel=light3);" }}
}}{SECT 0 {PARA 3 "" 0 "" {TEXT -1 180 "We now launch Geomview and tra
nslate the Maple code\nto Geomview's code by inserting the Maple code \+
into\ngvplot(...). Note that Geomview normally does not inherit\nthe M
aple options." }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 42 "gvplot( \nd
isplay(dodecahedron([0,0,0])\n));" }}}{EXCHG {PARA 0 "> " 0 "" 
{MPLTEXT 1 0 69 "n:=5:gvplot(display(\{seq(\ncuboid([0,0,k],[n-k,n-k,k
+1]),k=1..n-1)\}));" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 40 "gvpl
ot(plot3d(x^2-y^2,x=-1..1,y=-1..1));" }}}}}{MARK "1 0" 21 }{VIEWOPTS 
1 1 0 3 2 1804 }