occtl_mesh_options Struct Reference

#include <occtl_mesh.h>

Collaboration diagram for occtl_mesh_options:

Public Attributes
uint32_t	struct_version
const void *	p_next
double	deflection
double	angle
double	deflection_interior
double	angle_interior
double	min_size
int32_t	in_parallel
int32_t	relative
int32_t	internal_vertices_mode
int32_t	control_surface_deflection
int32_t	control_surface_deflection_all
int32_t	clean_model
int32_t	adjust_min_size
int32_t	force_face_deflection
int32_t	allow_quality_decrease
int32_t	use_bbox
occtl_aabb3_t	bbox
double	deviation_coefficient
double	deviation_angle

Detailed Description

Tunable parameters for occtl_mesh_generate.

Two parameter sources are supported, selected by the use_bbox field: explicit deflection / angle controls, or bbox-derived where the linear deflection is recomputed from a caller-supplied bounding box and a relative coefficient.

Defaults (see OCCTL_MESH_OPTIONS_INIT and occtl_mesh_options_init) are the conservative ones: linear deflection 0.001, angular deflection 0.5 rad, interior fields = -1.0 (inherit from boundary), single threaded, control-surface deflection on, model cleanup on.

Cancellation and algorithm selection.

Cooperative cancellation and a tessellation-algorithm enum will be added behind p_next when a binding asks for them; this v1 surface is locked to the default algorithm and runs to completion.

Member Data Documentation

adjust_min_size

int32_t occtl_mesh_options::adjust_min_size

0/1; non-zero adjusts minimum size per edge. Default 0.

allow_quality_decrease

int32_t occtl_mesh_options::allow_quality_decrease

0/1; non-zero permits the algorithm to coarsen an existing mesh. Default 0.

angle

double occtl_mesh_options::angle

Boundary angular deflection (rad). Default 0.5.

angle_interior

double occtl_mesh_options::angle_interior

Interior angular deflection (rad); -1.0 to inherit boundary. Default -1.0.

bbox

occtl_aabb3_t occtl_mesh_options::bbox

Bounding box used iff use_bbox != 0.

clean_model

int32_t occtl_mesh_options::clean_model

0/1; non-zero discards stale intermediate mesh data after the run. Default 1.

control_surface_deflection

int32_t occtl_mesh_options::control_surface_deflection

0/1; non-zero verifies surface deviation. Default 1.

control_surface_deflection_all

int32_t occtl_mesh_options::control_surface_deflection_all

0/1; if non-zero applies the surface-deflection check to all surface kinds. Default 0.

deflection

double occtl_mesh_options::deflection

Boundary linear deflection. Default 0.001.

deflection_interior

double occtl_mesh_options::deflection_interior

Interior linear deflection; -1.0 to inherit boundary. Default -1.0.

deviation_angle

double occtl_mesh_options::deviation_angle

Angular deflection (rad) for bbox mode. Default 20°.

deviation_coefficient

double occtl_mesh_options::deviation_coefficient

Relative deflection multiplier for bbox mode. Default 0.001.

force_face_deflection

int32_t occtl_mesh_options::force_face_deflection

0/1; non-zero overrides face tolerance with the supplied deflection. Default 0.

in_parallel

int32_t occtl_mesh_options::in_parallel

0/1; non-zero enables parallel face meshing. Default 0.

internal_vertices_mode

int32_t occtl_mesh_options::internal_vertices_mode

0/1; non-zero adds interior vertices to the surface mesh. Default 1.

min_size

double occtl_mesh_options::min_size

Minimum triangle edge length; -1.0 to compute from deflection. Default -1.0.

p_next

const void* occtl_mesh_options::p_next

Reserved for extensions; must be NULL.

relative

int32_t occtl_mesh_options::relative

0/1; non-zero treats deflection as relative to edge size. Default 0.

struct_version

uint32_t occtl_mesh_options::struct_version

Must be OCCTL_MESH_OPTIONS_VERSION_1.

use_bbox

int32_t occtl_mesh_options::use_bbox

0/1; when non-zero the algorithm derives deflection from the bbox / deviation_coefficient pair instead of using the explicit deflection field. Default 0.

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

• include/occtl/occtl_mesh.h