ImplicitSurfaceNetwork/primitive_process/interface/primitive_descriptor.h

#pragma once

#include <stdint.h>

#include <math/math_defs.h>

typedef enum {
    // PRIMITIVE_TYPE_CONSTANT,
    // PRIMITIVE_TYPE_PLANE,
    PRIMITIVE_TYPE_SPHERE,
    PRIMITIVE_TYPE_CYLINDER,
    PRIMITIVE_TYPE_CONE,
    PRIMITIVE_TYPE_BOX,
    // PRIMITIVE_TYPE_MESH,
    PRIMITIVE_TYPE_EXTRUDE_POLYLINE,
    PRIMITIVE_TYPE_EXTRUDE_HELIXLINE,
    PRIMITIVE_TYPE_MAX_COUNT
} primitive_type;

// // Placeholder, currently used to represent empty body
// typedef struct {
//     double value; // Use 0 to represent an empty body
// } constant_descriptor_t;

// // Plane descriptor
// typedef struct {
//     vector3d point;  // The base point of the plane
//     vector3d normal; // The normal of the plane
// } plane_descriptor_t;

// Sphere descriptor
typedef struct {
    vector3d center; // The ceter of the sphere
    double   radius; // The radius of the sphere
} sphere_descriptor_t;

// Cylinder descriptor
typedef struct {
    vector3d bottom_origion; // The origion of bottom face of the cylinder
    double   radius;         // The radius of the cylinder
    vector3d offset;         // The vector from the origion of bottom face to the origion of the top face
} cylinder_descriptor_t;

typedef struct {
    vector3d top_point;    // The origion of top face of the cone
    vector3d bottom_point; // The origion of bottom face of the cone
    double   radius1;      // The radius of the top face
    double   radius2;      // The radius of the bottom face
} cone_descriptor_t;

typedef struct {
    vector3d center;    // The center of the box
    vector3d half_size; // The { half_length, half_width, half_height} of the box
} box_descriptor_t;

// // Mesh descriptor
// typedef struct {
//     uint32_t begin_index;
//     uint32_t vertex_count;
// } polygon_face_descriptor_t;

// typedef struct {
//     uint32_t                   point_number; // The point number of the mesh
//     uint32_t                   face_number;  // The face number of the mesh
//     vector3d*            points;       // The points of the mesh
//     uint32_t*                  indices;      // The indices from face to point
//     polygon_face_descriptor_t* faces;        // Two-dimensional array, Use [begin index, length] to represent a face
// } mesh_descriptor_t;

// Extrude descriptor
// CAUTION: when looking into the polyline from -{reference_normal} direction, all points should be arranged in counter
// clockwise order
// CAUTION: iff {is_closed} is true, then {point_number} == {bulge_number} should be agreed; iff {is_closed} is false,
// then {point_number} == {bulge_number} + 1 should be agreed.
typedef struct {
    uint32_t  point_number;     // The point number of the polyline
    vector3d* points;           // The points of the polyline
    uint32_t  bulge_number;     // The bulge number of the polyline
    double*   bulges;           // The bulge of each edge
    vector3d  reference_normal; // The reference normal of the polyline
    bool      is_close;         // Whether the polyline is close
} polyline_descriptor_t;

typedef struct {
    vector3d axis_start;        // The start point of the helix line
    vector3d axis_end;          // The end point of the helix line
    double   radius;            // The radius of the helix line
    double   advance_per_round; // he advance per round of the helix line
    vector3d start_direction;   // The direction from axisStart to start of the helix line
    bool     is_righthanded;    // {axis_start -> axis_end} as upward direction
} helixline_descriptor_t;

// Note : In profiles, The first polyline is outer boundary, and the ohters is internal holes
typedef struct {
    uint32_t               profile_number; // The profiles number of the extruded solid
    polyline_descriptor_t* profiles;       // The profiles of the extruded solid
    polyline_descriptor_t  axis;           // The axis of the extruded solid
} extrude_polyline_descriptor_t;

typedef struct {
    uint32_t               profile_number; // The profiles number of the extruded solid
    polyline_descriptor_t* profiles;       // The profiles of the extruded solid
    helixline_descriptor_t axis;           // The axis of the extruded solid
} extrude_helixline_descriptor_t;