doc/liaisons-methane.tex

   1 \begin{center}
   2 \begin{pspicture}(-4,-4)(4,5)
   3 \psset{viewpoint=100 50 20 rtp2xyz,Decran=30,RotY=-30}
   4 {\psset{lightintensity=1,linewidth=0.5\pslinewidth}
   5 \psframe(-4,-4)(4,5)
   6 \codejps{
   7   /L1 {
   8      0 0.25 10.93  [8 6] newcylindre
   9      {-90 0 0 rotateOpoint3d} solidtransform
  10       dup (White) outputcolors
  11    } def
  12 /L2 { L1 {0 0 -109.5 rotateOpoint3d} solidtransform } def
  13 /L3 { L2 {0 -120 0 rotateOpoint3d} solidtransform } def
  14 /L4 { L2 {0 120 0 rotateOpoint3d} solidtransform } def
  15 /L12 { L1 L2 solidfuz} def
  16 /L123 { L12 L3 solidfuz} def
  17 /Liaisons { L123 L4 solidfuz} def
  18   Liaisons  drawsolid**}}
  19 \psPoint(0,10.93,0){H1}
  20 \psPoint(10.3,-3.64,0){H2}
  21 \psPoint(-5.15,-3.64,8.924){H3}
  22 \psPoint(-5.15,-3.64,-8.924){H4}
  23 \uput[0](H1){$\mathrm{H_1}$}
  24 \uput[l](H2){$\mathrm{H_2}$}
  25 \uput[u](H3){$\mathrm{H_3}$}
  26 \uput[d](H4){$\mathrm{H_4}$}
  27 \pcline[offset=0.25]{|-|}(H2)(H3)
  28 \pcline[offset=0.25]{<->}(H2)(H3)
  29 \aput{:U}{17,8 pm}
  30 \pcline[offset=0.15]{|-|}(H2)(O)
  31 \pcline[offset=0.15]{<->}(H2)(O)
  32 \aput{:U}{10,93 pm}
  33 \axesIIID(3,3,3)(14,16,14)
  34 \pspolygon[linestyle=dashed,linecolor=red](H1)(H2)(H3)
  35 \psline[linestyle=dashed,linecolor=red](H4)(H1)
  36 \psline[linestyle=dashed,linecolor=red](H4)(H2)
  37 \psline[linestyle=dashed,linecolor=red](H4)(H3)
  38 \psline[linestyle=dotted,linecolor=red](H4)(O)
  39 \psline[linestyle=dotted,linecolor=red](H3)(O)
  40 \psline[linestyle=dotted,linecolor=red](H2)(O)
  41 \psline[linestyle=dotted,linecolor=red](H1)(O)
  42 \pstMarkAngle[arrows=<->]{H1}{O}{H3}{\small 109,5$^{\mathrm{o}}$}
  43 \end{pspicture}
  44 \hfill
  45 \begin{pspicture}(-4,-4)(4,5)
  46 \psset{lightsrc=50 50 10,lightintensity=1,viewpoint=100 50 20 rtp2xyz,Decran=30,RotY=-30}
  47 {%
  48 \psset{linewidth=0.5\pslinewidth}
  49 \psframe(-4,-4)(4,5)
  50 \codejps{
  51  /H1 {2  [18 16] newsphere
  52  {-90 0 0 rotateOpoint3d} solidtransform
  53  {0 10.93 0 translatepoint3d} solidtransform
  54  dup (White) outputcolors} def
  55   /L1 {
  56      0 0.25 10  [12 10] newcylindre
  57      {-90 0 0 rotateOpoint3d} solidtransform
  58       dup (White) outputcolors
  59    } def
  60 /HL1{ H1 L1  solidfuz} def
  61 /HL2 { HL1 {0 0 -109.5 rotateOpoint3d} solidtransform } def
  62 /HL3 { HL2 {0 -120 0 rotateOpoint3d} solidtransform } def
  63 /HL4 { HL2 {0 120 0 rotateOpoint3d} solidtransform } def
  64  /C {3  [18 16] newsphere
  65   {90 0 0 rotateOpoint3d} solidtransform
  66    dup (gris) outputcolors} def
  67 /HL12 { HL1 HL2 solidfuz} def
  68 /HL123 { HL12 HL3 solidfuz} def
  69 /HL1234 { HL123 HL4 solidfuz} def
  70 /methane { HL1234 C solidfuz} def
  71   methane  drawsolid**}
  72 \psPoint(0,10.93,0){H1}
  73 \psPoint(10.3,-3.64,0){H2}
  74 \psPoint(-5.15,-3.64,8.924){H3}
  75 \psPoint(-5.15,-3.64,-8.924){H4}}%
  76 \axesIIID(3,3,3)(14,16,14)
  77 \pspolygon[linestyle=dashed,linecolor=red](H1)(H2)(H3)
  78 \psline[linestyle=dashed,linecolor=red](H4)(H1)
  79 \psline[linestyle=dashed,linecolor=red](H4)(H2)
  80 \psline[linestyle=dashed,linecolor=red](H4)(H3)
  81 \psline[linestyle=dotted,linecolor=red](H4)(O)
  82 \psline[linestyle=dotted,linecolor=red](H3)(O)
  83 \psline[linestyle=dotted,linecolor=red](H2)(O)
  84 \psline[linestyle=dotted,linecolor=red](H1)(O)
  85 \end{pspicture}
  86 \end{center}