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Action:
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Creates a hexagonal pattern with cylindrical symmetry.
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Prototype:
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outcome api_hex_cylindrical_pattern (
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pattern*& pat,
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// created pattern
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const FACE* in_face,
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// face defining
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// the pattern
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int num_angular,
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// # of pattern elements
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// about cylinder axis
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int num_axial
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// # of pattern elements
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= 1,
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// along cylinder axis
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double spacing
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// spacing of pattern
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= 0.0,
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// elements
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AcisOptions* ao = NULL
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// acis options
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);
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outcome api_hex_cylindrical_pattern (
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pattern*& pat,
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// created pattern
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const SPAposition& center,// start position
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const SPAvector& normal,
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// direction of
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// cylinder axis
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int num_angular,
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// # of pattern elements
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// about cylinder axis
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int num_axial
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// # of pattern elements
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= 1,
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// along cylinder axis
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double spacing
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// spacing of pattern
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= 0.0,
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// elements
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AcisOptions* ao = NULL
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// acis options
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);
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Includes:
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#include "kernel/acis.hxx"
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#include "baseutil/vector/position.hxx"
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#include "baseutil/vector/vector.hxx"
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#include "kernel/kernapi/api/api.hxx"
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#include "kernel/kerndata/top/face.hxx"
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#include "kernel/kernutil/law/pattern.hxx"
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#include "kernel/kernutil/law/pattern_api.hxx"
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#include "kernel/kernapi/api/acis_options.hxx"
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Description:
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Creates a two-dimensional hexagonal pattern with cylindrical symmetry, with a radius and axis defined either by the center position and normal vector or by the cylindrical face
in_face. The number of angular and axial elements in the pattern are set by
num_angular and
num_axial, respectively, and the distance between pattern elements by spacing. The pattern coordinates are specified in the order (angular, axial).
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The following code snippet shows an example of how this API can be used.
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// Create a pattern
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pattern* pat = NULL;
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SPAposition center(5, 0, 0);
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SPAvector normal(0, 1, 0);
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int num_angular = 8;
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int num_axial = 6;double spacing = 3.0;
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check_outcome(result = api_hex_cylindrical_pattern(pat, center,
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normal, num_angular, num_axial, spacing));
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// Create a cylinder
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BODY* cylinder = NULL;
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SPAposition bottom(0, 0, 0);
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SPAposition top(0.5, 0, 0);
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double maj_rad = 1.0;
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double min_rad = 1.0;
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check_outcome(result = api_solid_cylinder_cone(bottom, top, maj_rad, min_rad, maj_rad, NULL, cylinder));
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// Apply the pattern to the cylinder
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check_outcome(result = api_set_entity_pattern(cylinder, pat));
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// Clean up
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pat->remove();
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Library:
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kernel
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Filename:
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kern/kernel/kernutil/law/pattern_api.hxx
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Effect:
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Changes model
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