/ . / VolumePath / vrml_curve.py
Functions
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vrml_point_indexing
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vrml_point_indexing ( points )
Return VRML strings for xyz coordinate table and point index list.
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vrml_color_indexing
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vrml_color_indexing ( colors )
Return VRML strings for color table and color index list.
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vrml_tube
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vrml_tube (
points,
point_colors,
segment_colors,
radius,
)
Return VRML string to that draws a tube.
Cylinders are drawn between consecutive points with spheres at each point
to join cylinders at a bend and to cap the ends.
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vrml_overhauser_spline
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vrml_overhauser_spline (
points,
rgb,
radius,
segment_subdivisions,
)
Return VRML string drawing a piecewise linear approximation to an
Overhauser spline. An Overhauser spline uses cubic segments that
join at the given points and have continuous tangent vector.
For the end segments I use a quadratic curve.
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vrml_nurbs_spline
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vrml_nurbs_spline ( points, rgb )
Use VRML NurbsCurve extension to create spline. Curve will not pass through
points and will not extend to the end points. This is taken from the
Chimera Ribbon extension.
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vrml_lines
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vrml_lines ( points, colors )
Return VRML string to draw a piecewise linear curve.
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vrml_banded_tube
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vrml_banded_tube (
points,
point_colors,
segment_colors,
radius,
segment_subdivisions,
band_length,
)
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cylinder_node
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cylinder_node (
p1,
p2,
radius,
rgb,
)
Return VRML node for a cylinder with axis specified by end points.
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vrml_header
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vrml_header ()
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band_points
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band_points ( arcs, band_length )
Count points within band_length/2 of each end of an arc.
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band_colors
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band_colors (
plist,
point_colors,
segment_colors,
segment_subdivisions,
band_length,
)
Calculate point and segment colors for an interpolated set of points.
Point colors are extended to interpolated points and segments within
band_length/2 arc distance.
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