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sn#109024 filedate 1974-07-02 generic text, type T, neo UTF8
COMMENT ⊗ VALID 00002 PAGES
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00001 00001
00002 00002 ~H7O0,630,750
00004 ENDMK
⊗;
~H7;O0,630,750;
L0,-20,0*5,-61*5;L0,20,0*5,61*5;
L-86*5,83*5,0*5,61*5,86*5,83*5;L-86*5,-83*5,0*5,-61*5,86*5,-83*5;
H2;
L42*5,106*5,86*5,83*5,126*5,0*5,86*5,-83*5,42*5,-106*5,-42*5,-106*5;
L-42*5,-106*5,-86*5,-83*5,-126*5,0*5,-86*5,83*5,-42*5,106*5,42*5,106*5;
L-30,-10;FBedge~
L-380,-10;FBNFACE(edge)~
L240,-10;FBPFACE(edge)~
L-70,-370;FBNVT(edge)~
L-70,350;FBPVT(edge)~
L-360,320;FBNCCW(edge)~
L-390,-360;FBNCW(edge)~
L220,320;FBPCW(edge)~
L260,-360;FBPCCW(edge)~
I1350,0;
λ10;JC;FA[FIGURE 2.1 - Winged Edge Topology]
The orientation of links is as viewed from the exterior side of the surface.
The eight mnemonics in the figure, were derived as follows:
NFACE(edge) Negative Face of edge.
PFACE(edge) Positive Face of edge.
PVT(edge) Positive Vertex of edge.
NVT(edge) Negative Vertex of edge.
NCW(edge) edge in Negative face Clockwise from edge.
PCW(edge) edge in Positive face Clockwise from edge.
NCCW(edge) edge in Negative face Counter Clockwise from edge.
PCCW(edge) edge in Positive face Counter Clockwise from edge.