dgnlib
Public Attributes
DGNElemBSplineSurfaceHeader Struct Reference

#include <dgnlib.h>

List of all members.

Public Attributes

DGNElemCore core
long desc_words
unsigned char curve_type
unsigned char u_order
unsigned short u_properties
short num_poles_u
short num_knots_u
short rule_lines_u
unsigned char v_order
unsigned short v_properties
short num_poles_v
short num_knots_v
short rule_lines_v
short num_bounds

Detailed Description

B-Spline Surface Header element

The core.stype code is DGNST_BSPLINE_SURFACE_HEADER.

Used for: DGNT_BSPLINE_SURFACE_HEADER(24)


Member Data Documentation

unsigned char DGNElemBSplineSurfaceHeader::curve_type

curve type

long DGNElemBSplineSurfaceHeader::desc_words

Total length of B-Spline surface in words, excluding the first 20 words (header + desc_words field)

short DGNElemBSplineSurfaceHeader::num_bounds

number of boundaries

short DGNElemBSplineSurfaceHeader::num_knots_u

number of knots

short DGNElemBSplineSurfaceHeader::num_knots_v

number of knots

short DGNElemBSplineSurfaceHeader::num_poles_u

number of poles

short DGNElemBSplineSurfaceHeader::num_poles_v

number of poles

short DGNElemBSplineSurfaceHeader::rule_lines_u

number of rule lines

short DGNElemBSplineSurfaceHeader::rule_lines_v

number of rule lines

unsigned char DGNElemBSplineSurfaceHeader::u_order

B-spline U order: 2-15

unsigned short DGNElemBSplineSurfaceHeader::u_properties

surface U properties: ORing of DGNBSC_ flags

unsigned char DGNElemBSplineSurfaceHeader::v_order

B-spline V order: 2-15

unsigned short DGNElemBSplineSurfaceHeader::v_properties

surface V properties: Oring of DGNBSS_ flags


The documentation for this struct was generated from the following file: