diff options
Diffstat (limited to 'demo/sgi/gl_panel/nurbs')
| -rwxr-xr-x | demo/sgi/gl_panel/nurbs/nurbs.py | 318 | ||||
| -rw-r--r-- | demo/sgi/gl_panel/nurbs/nurbsdata.py | 90 |
2 files changed, 204 insertions, 204 deletions
diff --git a/demo/sgi/gl_panel/nurbs/nurbs.py b/demo/sgi/gl_panel/nurbs/nurbs.py index 686c3bd..c92cb46 100755 --- a/demo/sgi/gl_panel/nurbs/nurbs.py +++ b/demo/sgi/gl_panel/nurbs/nurbs.py @@ -1,6 +1,6 @@ #! /ufs/guido/bin/sgi/python -# Fancy NURBS demo. Require Z buffer and Panel Library. +# Fancy NURBS demo. Require Z buffer and Panel Library. from gl import * from GL import * @@ -11,186 +11,186 @@ import panel # # flags = trim_f, invis_f, cpvis_f, tpvis_f, axvis_f, freeze_f # -TRIM = 0 -VIS = 1 -CPVIS = 2 -TPVIS = 3 -AXVIS = 4 -FREEZE = 5 +TRIM = 0 +VIS = 1 +CPVIS = 2 +TPVIS = 3 +AXVIS = 4 +FREEZE = 5 flags = [0, 1, 0, 0, 0, 0] def draw_axis () : - cpack (0x0) - zero = (0.0, 0.0, 0.0) - # - one = (1.0, 0.0, 0.0) - smallline (zero, one) - cmov (1.0, 0.0, 0.0) - charstr ('x') - # - one = (0.0, 1.0, 0.0) - smallline (zero, one) - cmov (0.0, 1.0, 0.0) - charstr ('y') - # - one = (0.0, 0.0, 1.0) - smallline (zero, one) - cmov (0.0, 0.0, 1.0) - charstr ('z') + cpack (0x0) + zero = (0.0, 0.0, 0.0) + # + one = (1.0, 0.0, 0.0) + smallline (zero, one) + cmov (1.0, 0.0, 0.0) + charstr ('x') + # + one = (0.0, 1.0, 0.0) + smallline (zero, one) + cmov (0.0, 1.0, 0.0) + charstr ('y') + # + one = (0.0, 0.0, 1.0) + smallline (zero, one) + cmov (0.0, 0.0, 1.0) + charstr ('z') DELTA = 0.1 def cross (p) : - p0 = [p[0], p[1], p[2]] - p1 = [p[0], p[1], p[2]] - for i in range (0, 3) : - p0[i] = p0[i] + DELTA - p1[i] = p1[i] - DELTA - smallline (p0, p1) - p0[i] = p0[i] - DELTA - p1[i] = p1[i] + DELTA + p0 = [p[0], p[1], p[2]] + p1 = [p[0], p[1], p[2]] + for i in range (0, 3) : + p0[i] = p0[i] + DELTA + p1[i] = p1[i] - DELTA + smallline (p0, p1) + p0[i] = p0[i] - DELTA + p1[i] = p1[i] + DELTA def smallline (p0, p1) : - bgnline () - v3f (p0) - v3f (p1) - endline () + bgnline () + v3f (p0) + v3f (p1) + endline () def draw_pts (pnts, color) : - linewidth (2) - cpack (color) - for i in pnts : - cross (i) + linewidth (2) + cpack (color) + for i in pnts : + cross (i) def init_windows(): - foreground() - wid = winopen('nurbs') - wintitle('NURBS Surface') - doublebuffer() - RGBmode() - gconfig() - lsetdepth(0x000, 0x7fffff) - zbuffer( TRUE ) + foreground() + wid = winopen('nurbs') + wintitle('NURBS Surface') + doublebuffer() + RGBmode() + gconfig() + lsetdepth(0x000, 0x7fffff) + zbuffer( TRUE ) def init_view(): - mmode(MPROJECTION) - ortho( -5., 5., -5., 5., -5., 5. ) - # - mmode(MVIEWING) - loadmatrix(idmat) - # - lmbind(MATERIAL, 1) + mmode(MPROJECTION) + ortho( -5., 5., -5., 5., -5., 5. ) + # + mmode(MVIEWING) + loadmatrix(idmat) + # + lmbind(MATERIAL, 1) def set_scene(flags): - # - lmbind(MATERIAL, 0) - RGBcolor(150,150,150) - lmbind(MATERIAL, 1) - clear() - zclear() - # - if not flags[FREEZE] : - rotate( 100, 'y' ) - rotate( 100, 'z' ) + # + lmbind(MATERIAL, 0) + RGBcolor(150,150,150) + lmbind(MATERIAL, 1) + clear() + zclear() + # + if not flags[FREEZE] : + rotate( 100, 'y' ) + rotate( 100, 'z' ) def draw_trim_surface(flags): - pnts = ctlpoints - if flags[VIS] : - bgnsurface() - nurbssurface(surfknots,surfknots,pnts,ORDER,ORDER,N_XYZ) - if flags[TRIM]: - bgntrim() - nurbscurve(trimknots,trimpoints,ORDER-1,N_STW) - endtrim() - endsurface() - # - if flags[CPVIS] : - for i in pnts : - draw_pts (i, RED) - # - if flags[TPVIS] : - tpts = trimpoints - draw_pts (tpts, YELLOW) - # - if flags[AXVIS] : - draw_axis () - # - swapbuffers() + pnts = ctlpoints + if flags[VIS] : + bgnsurface() + nurbssurface(surfknots,surfknots,pnts,ORDER,ORDER,N_XYZ) + if flags[TRIM]: + bgntrim() + nurbscurve(trimknots,trimpoints,ORDER-1,N_STW) + endtrim() + endsurface() + # + if flags[CPVIS] : + for i in pnts : + draw_pts (i, RED) + # + if flags[TPVIS] : + tpts = trimpoints + draw_pts (tpts, YELLOW) + # + if flags[AXVIS] : + draw_axis () + # + swapbuffers() def make_lights(): - lmdef(DEFLMODEL,1,[]) - lmdef(DEFLIGHT,1,[]) - # - # define material #1 - # - a = [] - a = a + [EMISSION, 0.0, 0.0, 0.0] - a = a + [AMBIENT, 0.1, 0.1, 0.1] - a = a + [DIFFUSE, 0.6, 0.3, 0.3] - a = a + [SPECULAR, 0.0, 0.6, 0.0] - a = a + [SHININESS, 2.0] - a = a + [LMNULL] - lmdef(DEFMATERIAL, 1, a) - # - # turn on lighting - # - lmbind(LIGHT0, 1) - lmbind(LMODEL, 1) + lmdef(DEFLMODEL,1,[]) + lmdef(DEFLIGHT,1,[]) + # + # define material #1 + # + a = [] + a = a + [EMISSION, 0.0, 0.0, 0.0] + a = a + [AMBIENT, 0.1, 0.1, 0.1] + a = a + [DIFFUSE, 0.6, 0.3, 0.3] + a = a + [SPECULAR, 0.0, 0.6, 0.0] + a = a + [SHININESS, 2.0] + a = a + [LMNULL] + lmdef(DEFMATERIAL, 1, a) + # + # turn on lighting + # + lmbind(LIGHT0, 1) + lmbind(LMODEL, 1) def main(): - init_windows() - make_lights() - init_view() - # - panel.needredraw() - panels = panel.defpanellist('nurbs.s') - p = panels[0] - # - def cbtrim (a) : - flags[TRIM:TRIM+1] = [int (a.val)] - p.trim.upfunc = cbtrim - # - def cbquit (a) : - import sys - sys.exit (1) - p.quit.upfunc = cbquit - # - def cbmotion (a) : - flags[FREEZE:FREEZE+1] = [int (a.val)] - p.motion.upfunc = cbmotion - # - def cbxyzaxis (a) : - flags[AXVIS:AXVIS+1] = [int (a.val)] - p.xyzaxis.upfunc = cbxyzaxis - # - def cbtrimpnts (a) : - flags[TPVIS:TPVIS+1] = [int (a.val)] - p.trimpnts.upfunc = cbtrimpnts - # - def cbcntlpnts (a) : - flags[CPVIS:CPVIS+1] = [int (a.val)] - p.cntlpnts.upfunc = cbcntlpnts - # - def cbnurb (a) : - flags[VIS:VIS+1] = [int (a.val)] - p.nurb.upfunc = cbnurb - # - set_scene(flags) - setnurbsproperty( N_ERRORCHECKING, 1.0 ) - setnurbsproperty( N_PIXEL_TOLERANCE, 50.0 ) - draw_trim_surface(flags) - # - while 1: - act = panel.dopanel() - # - wid = panel.userredraw () - if wid : - winset (wid) - reshapeviewport() - set_scene(flags) - draw_trim_surface(flags) - # - set_scene(flags) - draw_trim_surface(flags) + init_windows() + make_lights() + init_view() + # + panel.needredraw() + panels = panel.defpanellist('nurbs.s') + p = panels[0] + # + def cbtrim (a) : + flags[TRIM:TRIM+1] = [int (a.val)] + p.trim.upfunc = cbtrim + # + def cbquit (a) : + import sys + sys.exit (1) + p.quit.upfunc = cbquit + # + def cbmotion (a) : + flags[FREEZE:FREEZE+1] = [int (a.val)] + p.motion.upfunc = cbmotion + # + def cbxyzaxis (a) : + flags[AXVIS:AXVIS+1] = [int (a.val)] + p.xyzaxis.upfunc = cbxyzaxis + # + def cbtrimpnts (a) : + flags[TPVIS:TPVIS+1] = [int (a.val)] + p.trimpnts.upfunc = cbtrimpnts + # + def cbcntlpnts (a) : + flags[CPVIS:CPVIS+1] = [int (a.val)] + p.cntlpnts.upfunc = cbcntlpnts + # + def cbnurb (a) : + flags[VIS:VIS+1] = [int (a.val)] + p.nurb.upfunc = cbnurb + # + set_scene(flags) + setnurbsproperty( N_ERRORCHECKING, 1.0 ) + setnurbsproperty( N_PIXEL_TOLERANCE, 50.0 ) + draw_trim_surface(flags) + # + while 1: + act = panel.dopanel() + # + wid = panel.userredraw () + if wid : + winset (wid) + reshapeviewport() + set_scene(flags) + draw_trim_surface(flags) + # + set_scene(flags) + draw_trim_surface(flags) main() diff --git a/demo/sgi/gl_panel/nurbs/nurbsdata.py b/demo/sgi/gl_panel/nurbs/nurbsdata.py index ed7e705..9a3f09e 100644 --- a/demo/sgi/gl_panel/nurbs/nurbsdata.py +++ b/demo/sgi/gl_panel/nurbs/nurbsdata.py @@ -25,58 +25,58 @@ surfknots = [-1, -1, -1, -1, 1, 1, 1, 1] # list of list of control points # def make_ctlpoints(): - c = [] - # - ci = [] - ci.append(-2.5, -3.7, 1.0) - ci.append(-1.5, -3.7, 3.0) - ci.append(1.5, -3.7, -2.5) - ci.append(2.5, -3.7, -0.75) - c.append(ci) - # - ci = [] - ci.append(-2.5, -2.0, 3.0) - ci.append(-1.5, -2.0, 4.0) - ci.append(1.5, -2.0, -3.0) - ci.append(2.5, -2.0, 0.0) - c.append(ci) - # - ci = [] - ci.append(-2.5, 2.0, 1.0) - ci.append(-1.5, 2.0, 0.0) - ci.append(1.5, 2.0, -1.0) - ci.append(2.5, 2.0, 2.0) - c.append(ci) - # - ci = [] - ci.append(-2.5, 2.7, 1.25) - ci.append(-1.5, 2.7, 0.1) - ci.append(1.5, 2.7, -0.6) - ci.append(2.5, 2.7, 0.2) - c.append(ci) - # - return c + c = [] + # + ci = [] + ci.append(-2.5, -3.7, 1.0) + ci.append(-1.5, -3.7, 3.0) + ci.append(1.5, -3.7, -2.5) + ci.append(2.5, -3.7, -0.75) + c.append(ci) + # + ci = [] + ci.append(-2.5, -2.0, 3.0) + ci.append(-1.5, -2.0, 4.0) + ci.append(1.5, -2.0, -3.0) + ci.append(2.5, -2.0, 0.0) + c.append(ci) + # + ci = [] + ci.append(-2.5, 2.0, 1.0) + ci.append(-1.5, 2.0, 0.0) + ci.append(1.5, 2.0, -1.0) + ci.append(2.5, 2.0, 2.0) + c.append(ci) + # + ci = [] + ci.append(-2.5, 2.7, 1.25) + ci.append(-1.5, 2.7, 0.1) + ci.append(1.5, 2.7, -0.6) + ci.append(2.5, 2.7, 0.2) + c.append(ci) + # + return c ctlpoints = make_ctlpoints () # # trim knots # -trimknots = [0., 0., 0., 1., 1., 2., 2., 3., 3., 4., 4., 4.] +trimknots = [0., 0., 0., 1., 1., 2., 2., 3., 3., 4., 4., 4.] def make_trimpoints(): - c = [] - # - c.append(1.0, 0.0, 1.0) - c.append(1.0, 1.0, 1.0) - c.append(0.0, 2.0, 2.0) - c.append(-1.0, 1.0, 1.0) - c.append(-1.0, 0.0, 1.0) - c.append(-1.0, -1.0, 1.0) - c.append(0.0, -2.0, 2.0) - c.append(1.0, -1.0, 1.0) - c.append(1.0, 0.0, 1.0) - # - return c + c = [] + # + c.append(1.0, 0.0, 1.0) + c.append(1.0, 1.0, 1.0) + c.append(0.0, 2.0, 2.0) + c.append(-1.0, 1.0, 1.0) + c.append(-1.0, 0.0, 1.0) + c.append(-1.0, -1.0, 1.0) + c.append(0.0, -2.0, 2.0) + c.append(1.0, -1.0, 1.0) + c.append(1.0, 0.0, 1.0) + # + return c trimpoints = make_trimpoints() |