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Diffstat (limited to 'Examples/GIFPlot/Ruby/full/runme.rb')
-rw-r--r-- | Examples/GIFPlot/Ruby/full/runme.rb | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/Examples/GIFPlot/Ruby/full/runme.rb b/Examples/GIFPlot/Ruby/full/runme.rb deleted file mode 100644 index 5c118b2fa..000000000 --- a/Examples/GIFPlot/Ruby/full/runme.rb +++ /dev/null @@ -1,66 +0,0 @@ -# Plot a 3D function -require 'gifplot' -include Gifplot -include Math - -# Here is the function to plot -def func(x,y) - return 5*cos(2*sqrt(x*x+y*y))*exp(-0.3*sqrt(x*x+y*y)) -end - -# Here are some plotting parameters -XMIN = -5.0 -XMAX = 5.0 -YMIN = -5.0 -YMAX = 5.0 -ZMIN = -5.0 -ZMAX = 5.0 - -# Grid resolution -NXPOINTS = 60 -NYPOINTS = 60 - -cmap = new_ColorMap("cmap") -frame = new_FrameBuffer(500,500) -FrameBuffer_clear(frame,BLACK) - -P3 = new_Plot3D(frame,XMIN,YMIN,ZMIN,XMAX,YMAX,ZMAX) -Plot3D_lookat(P3,2*[XMAX-XMIN,YMAX-YMIN,ZMAX-ZMIN].max) -Plot3D_autoperspective(P3,40) -Plot3D_rotu(P3,60) -Plot3D_rotr(P3,30) -Plot3D_rotd(P3,10) - -def drawsolid() - Plot3D_clear(P3,BLACK) - Plot3D_start(P3) - dx = 1.0*(XMAX-XMIN)/NXPOINTS - dy = 1.0*(YMAX-YMIN)/NYPOINTS - cscale = 240.0/(ZMAX-ZMIN) - x = XMIN - for i in 0...NXPOINTS - y = YMIN - for j in 0...NYPOINTS - z1 = func(x,y) - z2 = func(x+dx,y) - z3 = func(x+dx,y+dy) - z4 = func(x,y+dy) - c1 = cscale*(z1-ZMIN) - c2 = cscale*(z2-ZMIN) - c3 = cscale*(z3-ZMIN) - c4 = cscale*(z4-ZMIN) - c = (c1+c2+c3+c4)/4 - c = 0 if (c < 0) - c = 239 if c > 239 - Plot3D_solidquad(P3,x,y,z1,x+dx,y,z2,x+dx,y+dy,z3,x,y+dy,z4,c+16) - y = y + dy - end - x = x + dx - end -end - -puts "Making a nice 3D plot..." -drawsolid() - -FrameBuffer_writeGIF(frame,cmap,"image.gif") -puts "Wrote image.gif" |