starting over

1 files changed, 159 insertions, 159 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()