-+-+-+-+-+-+-+-+ START OF PART 128 -+-+-+-+-+-+-+-+
X(vector)g Fi(p1-p2)i Fq(and)e(returns)g(the)g(result)f(in)h
XFi(p3)p Fq(.)p 1569 490 298 2 v 1569 569 2 80 v 1583 544 a
XFb(ptkf_subv3)p 1864 569 V 1569 571 298 2 v 11 645 a Fq(SUBROUTINE)h
XFp(ptkf_subv3)f Fq(\(p1,)g(p2,)g(p3\))25 734 y(IN)91 b(REAL)50
Xb Fa(p1\(3\))e Fq(3D)12 b(vector)n(.)25 784 y(IN)91 b(REAL)50
Xb Fa(p2\(3\))e Fq(3D)12 b(vector)n(.)25 833 y(OUT)50 b(REAL)g
XFa(p3\(3\))e Fq(3D)12 b(vector)n(.)0 902 y(This)f(function)f(evaluates)i(the
V)
Xf(3D)g(vector)g Fi(p1-p2)i Fq(and)e(returns)g(the)g(result)f(in)h
XFi(p3)p Fq(.)p 1479 1000 387 2 v 1479 1079 2 80 v 1493 1053
Xa Fb(ptkf_transform)p 1864 1079 V 1479 1081 387 2 v 11 1155
Xa Fq(SUBROUTINE)h Fp(ptkf_transform)f Fq(\(matrix,)g(point,)f(tpoint\))25
X1243 y(IN)91 b(REAL)50 b Fa(matrix\(3,)9 b(3\))49 b Fq(3x3)11
Xb(matrix.)25 1293 y(IN)91 b(REAL)50 b Fa(point\(2\))107 b Fq(2D)12
Xb(point.)25 1343 y(OUT)50 b(REAL)g Fa(tpoint\(2\))97 b Fq(2D)12
Xb(point.)0 1412 y(This)f(function)f(transforms)h(the)g(2D)g(point)f
XFi(point)i Fq(by)f(the)g(3)e Fl(\264)g Fq(3)i(matrix)g Fi(matrix)i
XFq(and)e(returnes)g(the)g(result)g(in)g Fi(tpoint)p Fq(.)p
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Xb(REAL)g Fa(tpoint\(3\))97 b Fq(3D)12 b(point.)0 1922 y(This)k(function)e
X(transforms)h(the)h(3D)g(point)e Fi(point)j Fq(by)e(the)h(4)d
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Xb Fa(matrix\(4,)9 b(4\))49 b Fq(4x4)11 b(matrix.)25 2362 y(IN)91
Xb(REAL)50 b Fa(point\(4\))107 b Fq(4D)12 b(point.)25 2412 y(OUT)50
Xb(REAL)g Fa(tpoint\(4\))97 b Fq(4D)12 b(point.)0 2481 y(This)i(function)f
X(performs)h(the)h(4D)f(transformation)f(\(that)g(is,)j(with)d(no)h
X(homogeneous)g(division\))e(of)i(the)g(point)f Fi(point)j Fq(by)0
X2531 y(the)11 b(4)e Fl(\264)g Fq(4)i(matrix)g Fi(matrix)p Fq(,)i(and)e
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Xb(May)m(,)12 b(1992)626 b(180)828 b(2.01)p eop
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V)
Xo(x)p 1864 60 V 1330 62 537 2 v 11 136 a Fq(SUBROUTINE)12 b
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X275 y(OUT)50 b(REAL)g Fa(result\(3,)8 b(3\))59 b Fq(3x3)11
Xb(matrix.)0 350 y(This)k(function)f(transposes)h Fi(matrix)p
XFq(,)j(and)d(returns)g(the)g(result)g(in)g Fi(result)p Fq(.)28
Xb(Note)15 b(that)g Fi(result)h Fq(can)g(be)g(the)f(same)i(vari-)0
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Vp
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X1864 576 V 1300 578 567 2 v 11 652 a Fq(SUBROUTINE)g Fp
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X791 y(OUT)50 b(REAL)g Fa(result\(4,)8 b(4\))59 b Fq(4x4)11
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Xb(Note)15 b(that)g Fi(result)h Fq(can)g(be)g(the)f(same)i(vari-)0
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Vp
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XFl(\264)g Fq(3)i(matrix,)g(and)h(stores)f(it)g(in)f Fi(matrix)p
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V)
Xp 1864 1543 V 1433 1545 434 2 v 11 1619 a Fq(SUBROUTINE)i Fp
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XFa(matrix\(4,)9 b(4\))49 b Fq(4x4)11 b(matrix.)0 1819 y(This)g(procedure)h
X(creates)g(a)g(unit)e(4)f Fl(\264)g Fq(4)i(matrix,)g(and)h(stores)f(it)g(in)
Vf
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X2284 y(This)g(function)f(generates)i(and)g(returns)e(a)i(unit)e(vector)h(in)
Vg
XFi(uvec)h Fq(from)f(the)g(supplied)f(2D)i(vector)f Fi(vec)p
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Xeop
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Xa Fq(SUBROUTINE)h Fp(ptkf_unstackmatrix)e Fq(\(matrix\))25
X701 y(OUT)50 b(REAL)g Fa(matrix\(3,)9 b(3\))49 b Fq(3x3)11
Xb(matrix.)0 801 y(This)g(function)f(pops)h(a)h(3)d Fl(\264)g
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Xb(182)828 b(2.01)p eop
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X(specify)g(the)0 1283 y(lower)c(and)g(upper)g(limits)f(of)h(the)g(range)h(of
V)
Xf(integers)g(to)g(which)f(strings)h(hashed)g(into)f(the)h(hashtable)h(will)e
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X2175 y(IN)50 b(CHARACTER*\(*\))e Fa(delstr)77 b Fq(string)10
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Xbop 0 -137 a Fq(PHIGS)11 b(T)m(oolkit)f(User)i(Manual)1235
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Vp
X1864 60 V 1376 62 490 2 v 0 136 a Fq(LOGICAL)12 b(FUNCTION)f
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XFa(str)h Fq(name)12 b(of)f(hashtable.)0 335 y(This)16 b(function)f(checks)j
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X2 80 v 1480 987 a Fb(ptkf_inttostring)p 1864 1012 V 1466 1014
X401 2 v 11 1088 a Fq(SUBROUTINE)h Fp(ptkf_inttostring)d Fq(\(tablestr)n(,)j
X(stint,)e(size,)i(strbuf)o(fer)n(,)g(buf)o(fersize\))25 1177
Xy(IN)91 b(CHARACTER*\(*\))48 b Fa(tablestr)85 b Fq(hashtable)11
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Vg
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XFi(stint)p Fq(.)20 b(The)14 b(string)0 1495 y(is)e(returned)f(in)h(the)g(buf
V)
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X1595 y(0')h(character\),)i(or)e(0)g(if)g(no)g(string)f(was)i(returned.)p
X1240 1692 626 2 v 1240 1771 2 80 v 1254 1746 a Fb(ptkf_restoreallha)o(shtabl
V)
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Xb(The)c(\256le)f(should)f(be)i(open)f(for)g(reading)g(when)g(this)f(function
V)
Xg(is)h(called.)p 1323 2193 543 2 v 1323 2272 2 80 v 1337 2247
Xa Fb(ptkf_restorehashtabl)o(e)p 1864 2272 V 1323 2274 543 2
Xv 11 2348 a Fq(SUBROUTINE)h Fp(ptkf_r)o(estor)o(ehashtable)g
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X1192 y(IN)50 b(CHARACTER*\(*\))e Fa(tablestr)f Fq(name)13 b(of)e(hashtable.)
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V)
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