\def\baseH{0.837345 1.43729 0.837345 2.21329 0.839808 2.31027 0.849005 2.38705 0.867482 2.44634 0.897783 2.49077 0.942536 2.52296 1.00429 2.5457 1.08567 2.56155 1.1893 2.57329 1.1893 2.64933 0.077354 2.64933 0.077354 2.57329 0.180821 2.56155 0.262199 2.5457 0.324033 2.52296 0.368787 2.49077 0.399088 2.44634 0.417564 2.38705 0.426761 2.31027 0.429307 2.21329 0.429307 0.481286 0.426925 0.368294 0.418139 0.279197 0.400155 0.21104 0.370265 0.160785 0.325757 0.12531 0.263923 0.101578 0.181971 0.0866332 0.077354 0.077354 0.077354 0.00131387 1.1893 0.00131387 1.1893 0.077354 1.08805 0.0880292 1.00774 0.103714 0.946068 0.12687 0.900821 0.159799 0.869535 0.204881 0.850073 0.26458 0.840137 0.341277 0.837345 0.437354 0.837345 1.26131 2.04931 1.26131 2.04931 0.481286 2.04693 0.368294 2.03814 0.279197 2.02015 0.21104 1.99026 0.160785 1.94576 0.12531 1.88384 0.101578 1.80197 0.0866332 1.69727 0.077354 1.69727 0.00131387 2.8093 0.00131387 2.8093 0.077354 2.70805 0.0880292 2.62774 0.103714 2.56607 0.12687 2.52082 0.159799 2.48953 0.204881 2.47007 0.26458 2.46014 0.341277 2.45734 0.437354 2.45734 2.21329 2.45981 2.31027 2.46901 2.38705 2.48748 2.44634 2.51778 2.49077 2.56254 2.52296 2.62429 2.5457 2.70567 2.56155 2.8093 2.57329 2.8093 2.64933 1.69727 2.64933 1.69727 2.57329 1.80082 2.56155 1.8822 2.5457 1.94395 2.52296 1.98879 2.49077 2.01909 2.44634 2.03756 2.38705 2.04676 2.31027 2.04931 2.21329 2.04931 1.43729} \def\baseT{1.01734 2.48132 1.01734 0.481286 1.0148 0.367062 1.00527 0.277555 0.985894 0.209316 0.953786 0.159307 0.906159 0.124243 0.840137 0.101004 0.752765 0.086469 0.641332 0.077354 0.641332 0.00131387 1.80928 0.00131387 1.80928 0.077354 1.69859 0.0854015 1.61089 0.0991971 1.54363 0.121204 1.49428 0.153805 1.46028 0.199297 1.4391 0.260146 1.42834 0.33865 1.4253 0.437354 1.4253 2.48132 1.64135 2.48132 1.79581 2.4773 1.92014 2.46318 2.01868 2.43526 2.09578 2.39026 2.15581 2.32464 2.20319 2.23489 2.24228 2.11763 2.27734 1.96932 2.37334 1.96932 2.34928 2.64933 0.0932847 2.64933 0.0693066 1.96932 0.165301 1.96932 0.201761 2.11648 0.242162 2.23317 0.290529 2.32284 0.351296 2.38878 0.428485 2.43427 0.526369 2.4626 0.649215 2.47713 0.801296 2.48132} \psset{lightsrc=40 20 25,viewpoint=50 10 20 rtp2xyz,Decran=30} \begin{pspicture}(-6,-2)(7,6) \psframe(-5,-2)(7,6) \psSolid[object=grille,base=0 4 -10 10,hue=0 1,grid]% \psSolid[object=prisme,h=1,hue=0 1,incolor=yellow, base=\baseH,ngrid=1,decal=1,RotZ=90,RotX=90,unit=4](0,-3,0) \psSolid[object=prisme,h=1,hue=0 1,incolor=yellow, base=\baseT,ngrid=1,decal=-2,RotZ=90,RotX=90,unit=4](0,0,0) \end{pspicture}