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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | #!F-adobe-helvetica-medium-r-normal--18*
#!N
#!CNavyBlue
#!N #!Rphos Path Operations #!N #!EC #!N #!N The following operations
produce a geometric Object from a path. In addition to the
functions noted here, the Render module is capable of directly rendering
a path as a series of one-pixel lines. A path is
a Field with 1-dimensional regular connections. A path can be created
by, for example: #!CForestGreen #!N #!N #!F-adobe-courier-bold-r-normal--18* #!N f = DXNewField();
#!N DXSetComponentValue(f, "positions", ...); #!N DXSetConnections(f, "lines", DXMakeGridConnections(1, n)); #!N DXEndField(f);
#!EF #!N #!N #!EC where #!F-adobe-times-bold-r-normal--18* n #!EF is the number
of points. #!N #!N Both of the operations listed here use
"normals" and "tangent" components if they are present; otherwise, they compute
approximations to the normals and tangents, as follows: the tangent is
the first derivative of the path; the normal is perpendicular to
the tangent and lies in the plane formed by the tangent
and the second derivative of the path. In each case, appropriate
normals are associated with the result for shading. #!N #!I0 #!N
#!N #!I0 #!N #!F-adobe-times-bold-r-normal--18* #!F-adobe-times-bold-r-normal--18* Object DXRibbon() #!EF #!EF #!I50 #!N
Produces a ribbon of the given width from a path or
group of paths. See #!Ldxrib,dxall1361 h DXRibbon #!EL . #!N #!I0 #!N #!F-adobe-times-bold-r-normal--18* #!F-adobe-times-bold-r-normal--18*
Object DXTube() #!EF #!EF #!I50 #!N Produces a tube of a
given diameter from a path or group of paths. See #!Ldxtbe,dxall1401 h DXTube #!EL
. #!I0 #!N #!N #!N #!N #!N #!F-adobe-times-medium-i-normal--18* Next Topic #!EF
#!N #!N #!Lrendchp,dxall1129 h Rendering #!EL #!N #!F-adobe-times-medium-i-normal--18* #!N
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