diff options
Diffstat (limited to 'demo/sgi/gl_panel/flying/objectdef.py')
| -rw-r--r-- | demo/sgi/gl_panel/flying/objectdef.py | 234 |
1 files changed, 117 insertions, 117 deletions
diff --git a/demo/sgi/gl_panel/flying/objectdef.py b/demo/sgi/gl_panel/flying/objectdef.py index 3e96113..02a9513 100644 --- a/demo/sgi/gl_panel/flying/objectdef.py +++ b/demo/sgi/gl_panel/flying/objectdef.py @@ -7,141 +7,141 @@ FUZZY = 0.00001 # first try - brute force method (ala M.Overmars...) def makespinobject (smooth,rot,n,x1,z1,nx1,nz1,x2,z2,nx2,nz2) : - object = [] - dth = 2.0 * pi / float (rot) - for i in range (0, n) : - for j in range (0, rot) : - th = dth * float (j) - # - if smooth = 1: - a1 = th - a2 =th+dth - else : - a1 = th + dth / 2.0 - a2 = th + dth / 2.0 - # - v0 = (x1[i]*sin(th),x1[i]*cos(th),z1[i]) - n0 = (nx1[i]*sin(a1),nx1[i]*cos(a1),nz1[i]) - # - v1 = (x1[i]*sin(th+dth),x1[i]*cos(th+dth),z1[i]) - n1 = (nx1[i]*sin(a2), nx1[i]*cos(a2), nz1[i]) - # - v2 = (x2[i]*sin(th+dth),x2[i]*cos(th+dth),z2[i]) - n2 = (nx2[i]*sin(a2), nx2[i]*cos(a2), nz2[i]) - # - v3 = (x2[i]*sin(th), x2[i]*cos(th), z2[i]) - n3 = (nx2[i]*sin(a1), nx2[i]*cos(a1), nz2[i]) - # - patch = ((v0,n0), (v1,n1), (v2,n2), (v3,n3)) - #patch = ((n0,v0), (n1,v1), (n2,v2), (n3,v3)) - # - if x1[i] < FUZZY : - patch = patch[1:] - # - object.append (patch) - # - return object + object = [] + dth = 2.0 * pi / float (rot) + for i in range (0, n) : + for j in range (0, rot) : + th = dth * float (j) + # + if smooth = 1: + a1 = th + a2 =th+dth + else : + a1 = th + dth / 2.0 + a2 = th + dth / 2.0 + # + v0 = (x1[i]*sin(th),x1[i]*cos(th),z1[i]) + n0 = (nx1[i]*sin(a1),nx1[i]*cos(a1),nz1[i]) + # + v1 = (x1[i]*sin(th+dth),x1[i]*cos(th+dth),z1[i]) + n1 = (nx1[i]*sin(a2), nx1[i]*cos(a2), nz1[i]) + # + v2 = (x2[i]*sin(th+dth),x2[i]*cos(th+dth),z2[i]) + n2 = (nx2[i]*sin(a2), nx2[i]*cos(a2), nz2[i]) + # + v3 = (x2[i]*sin(th), x2[i]*cos(th), z2[i]) + n3 = (nx2[i]*sin(a1), nx2[i]*cos(a1), nz2[i]) + # + patch = ((v0,n0), (v1,n1), (v2,n2), (v3,n3)) + #patch = ((n0,v0), (n1,v1), (n2,v2), (n3,v3)) + # + if x1[i] < FUZZY : + patch = patch[1:] + # + object.append (patch) + # + return object def makesphere (n): - asin = [] - acos = [] - for i in range (0, n-1): - asin.append (sin((pi/float (n))*(1.0+float (i)))) - acos.append(cos((pi/float (n))*(1.0+float (i)))) - # - x1 = [0.0] + asin - z1 = [1.0] + acos - nx1 = [0.0] + asin - nz1 = [1.0] + acos - # - x2 = asin + [0.0] - z2 = acos + [-1.0] - nx2 = asin + [0.0] - nz2 = acos + [-1.0] - # - return makespinobject (1,2*n,n,x1,z1,nx1,nz1,x2,z2,nx2,nz2) + asin = [] + acos = [] + for i in range (0, n-1): + asin.append (sin((pi/float (n))*(1.0+float (i)))) + acos.append(cos((pi/float (n))*(1.0+float (i)))) + # + x1 = [0.0] + asin + z1 = [1.0] + acos + nx1 = [0.0] + asin + nz1 = [1.0] + acos + # + x2 = asin + [0.0] + z2 = acos + [-1.0] + nx2 = asin + [0.0] + nz2 = acos + [-1.0] + # + return makespinobject (1,2*n,n,x1,z1,nx1,nz1,x2,z2,nx2,nz2) def makecylinder(n) : - x1 = [0.0, 1.0, 1.0] - nx1 = [0.0, 1.0, 0.0] - z1 = [1.0, 1.0, -1.0] - nz1 = [1.0, 0.0, -1.0] - # - z2 = [1.0, -1.0, -1.0] - nz2 = [1.0, 0.0, -1.0] - x2 = [1.0, 1.0, 0.0] - nx2 = [0.0, 1.0, 0.0] - # - return makespinobject(1,2*n,3,x1,z1,nx1,nz1,x2,z2,nx2,nz2) + x1 = [0.0, 1.0, 1.0] + nx1 = [0.0, 1.0, 0.0] + z1 = [1.0, 1.0, -1.0] + nz1 = [1.0, 0.0, -1.0] + # + z2 = [1.0, -1.0, -1.0] + nz2 = [1.0, 0.0, -1.0] + x2 = [1.0, 1.0, 0.0] + nx2 = [0.0, 1.0, 0.0] + # + return makespinobject(1,2*n,3,x1,z1,nx1,nz1,x2,z2,nx2,nz2) def makecone(n) : - x1 = [0.0, 1.0, 1.0] - nx1 = [2.0/sqrt(5.0), 0.0, 0.0] - z1 = [1.0, -1.0, -1.0] - nz1 = [1.0/sqrt(5.0), -1.0, -1.0] - # - x2 = [1.0, 0.0, 0.0] - nx2 = [2.0/sqrt(5.0), 0.0, 0.0] - nz2 = [1.0/sqrt(5.0), -1.0, -1.0] - z2 = [-1.0, -1.0, -1.0] - # - return makespinobject(1,2*n,2,x1,z1,nx1,nz1,x2,z2,nx2,nz2) + x1 = [0.0, 1.0, 1.0] + nx1 = [2.0/sqrt(5.0), 0.0, 0.0] + z1 = [1.0, -1.0, -1.0] + nz1 = [1.0/sqrt(5.0), -1.0, -1.0] + # + x2 = [1.0, 0.0, 0.0] + nx2 = [2.0/sqrt(5.0), 0.0, 0.0] + nz2 = [1.0/sqrt(5.0), -1.0, -1.0] + z2 = [-1.0, -1.0, -1.0] + # + return makespinobject(1,2*n,2,x1,z1,nx1,nz1,x2,z2,nx2,nz2) def makecube() : - x1 = [0.0, sqrt(2.0), sqrt (2.0)] - nx1 = [0.0, 1.0, 0.0] - z1 = [1.0, 1.0, -1.0] - nz1 = [1.0, 0.0, -1.0] - # - x2 = [sqrt(2.0), sqrt(2.0), 0.0] - nx2 = [0.0, 1.0, 0.0] - z2 = [1.0, -1.0, -1.0] - nz2 = [1.0, 0.0, -1.0] - # - return makespinobject(0,4,3,x1,z1,nx1,nz1,x2,z2,nx2,nz2) + x1 = [0.0, sqrt(2.0), sqrt (2.0)] + nx1 = [0.0, 1.0, 0.0] + z1 = [1.0, 1.0, -1.0] + nz1 = [1.0, 0.0, -1.0] + # + x2 = [sqrt(2.0), sqrt(2.0), 0.0] + nx2 = [0.0, 1.0, 0.0] + z2 = [1.0, -1.0, -1.0] + nz2 = [1.0, 0.0, -1.0] + # + return makespinobject(0,4,3,x1,z1,nx1,nz1,x2,z2,nx2,nz2) def makepyramid() : - x1 = [0.0, sqrt(2.0), 0.0] - nx1 = [2.0 / sqrt(5.0), 0.0, 0.0] - z1 = [1.0, -1.0, 0.0] - nz1 = [1.0 / sqrt(5.0), -1.0, 0.0] - # - x2 = [sqrt(2.0), 0.0, 0.0] - nx2 = [2.0 / sqrt(5.0), 0.0, 0.0] - z2 = [-1.0, -1.0, -1.0] - nz2 = [1.0/sqrt(5.0), -1.0, 0.0] - # - return makespinobject(0,4,3,x1,z1,nx1,nz1,x2,z2,nx2,nz2) + x1 = [0.0, sqrt(2.0), 0.0] + nx1 = [2.0 / sqrt(5.0), 0.0, 0.0] + z1 = [1.0, -1.0, 0.0] + nz1 = [1.0 / sqrt(5.0), -1.0, 0.0] + # + x2 = [sqrt(2.0), 0.0, 0.0] + nx2 = [2.0 / sqrt(5.0), 0.0, 0.0] + z2 = [-1.0, -1.0, -1.0] + nz2 = [1.0/sqrt(5.0), -1.0, 0.0] + # + return makespinobject(0,4,3,x1,z1,nx1,nz1,x2,z2,nx2,nz2) def makeobjects () : - cube = makecube() - sphere = makesphere (6) - cylinder = makecylinder (6) - cone = makecone (6) - pyramid = makepyramid () - # - odict = {} - odict ['cube'] = cube - odict ['pyramid'] = pyramid - odict ['sphere'] = sphere - odict ['cylinder'] = cylinder - odict ['cone'] = cone - odict ['diamond'] = cube - odict ['disk'] = sphere - # - return odict + cube = makecube() + sphere = makesphere (6) + cylinder = makecylinder (6) + cone = makecone (6) + pyramid = makepyramid () + # + odict = {} + odict ['cube'] = cube + odict ['pyramid'] = pyramid + odict ['sphere'] = sphere + odict ['cylinder'] = cylinder + odict ['cone'] = cone + odict ['diamond'] = cube + odict ['disk'] = sphere + # + return odict renderfuncs = [bgnpolygon, endpolygon] def putFunc (funcs) : - renderfuncs [:] = funcs + renderfuncs [:] = funcs def drawobject (obj) : - # - for patch in obj : - renderfuncs[0] () - vnarray (patch) - renderfuncs[1] () + # + for patch in obj : + renderfuncs[0] () + vnarray (patch) + renderfuncs[1] () |