PrimitiveOptions Struct Reference

Common settings shared by all primitives. More...

#include <lagrange/primitive/PrimitiveOptions.h>

Inheritance diagram for PrimitiveOptions:

Public Types
using	Scalar = float

Public Attributes
std::array< Scalar, 3 >	center {0, 0, 0}
	Center of the primitive in 3D space.
bool	with_top_cap = true
	Whether to generate top cap of the primitive (if applicable).
bool	with_bottom_cap = true
	Whether to generate bottom cap of the primitive (if applicable).
bool	with_cross_section = true
	Whether to generate cross section of the primitive (if applicable).
bool	triangulate = false
	Whether to triangulate the generated surface mesh.
bool	fixed_uv = false
	Whether to use fixed UV coordinates regardless of the primitive parameters.
std::string_view	normal_attribute_name = "@normal"
	Name of the output indexed attribute storing the normal vectors.
std::string_view	uv_attribute_name = "@uv"
	Name of the output indexed attribute storing the UV coordinates.
std::string_view	semantic_label_attribute_name = "@semantic_label"
	Name of the output facet attribute storing the semantic labels.
Scalar	dist_threshold = static_cast<Scalar>(1e-6)
	Two vertices are considered coinciding if the distance between them is smaller than dist_threshold.
Scalar	angle_threshold = static_cast<Scalar>(30 * lagrange::internal::pi / 180)
	An edge is considered sharp if its dihedral angle is larger than angle_threshold.
Scalar	epsilon = static_cast<Scalar>(1e-6)
	Numerical tolerance used for comparing Scalar values.
Scalar	uv_padding = static_cast<Scalar>(0.005)
	Padding size for UV charts to avoid bleeding.

Detailed Description

Common settings shared by all primitives.

Member Data Documentation

center

std::array<Scalar, 3> center {0, 0, 0}

Center of the primitive in 3D space.

Note

The center is not necessarily the mesh centroid or bounding box center due to the nature of parametric primitive. The center is invariant to the parameter changes.

• For torus, the center is the center of the torus ring.
• For sphere, the center is the center of the sphere.
• For cylinder, the center is the center of the bottom cap of the cylinder.
• For cone, the center is the center of the bottom cap of the cone.

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

• lagrange/primitive/PrimitiveOptions.h