Projections.cpp File Reference

#include "Projections.h"
#include <cmath>
#include <algorithm>

Go to the source code of this file.

Functions
static void	crossProduct (int64_t res[3], const int64_t a[3], const int64_t b[3])
static void	crossProduct (double res[3], const double a[3], const double b[3])
static int64_t	dotProduct (const int64_t a[3], const int64_t b[3])
static void	normalize (double a[3])
static void	create_projection_axes (int64_t axes[NUM_AXES][3], const int64_t tri[3][3])

Variables
const int	vertmap [8][3]
const int	centmap [3][3][3][2]
const int	edgemap [12][2]
const int	facemap [6][4]

Function Documentation

create_projection_axes()

void create_projection_axes ( int64_t axes[NUM_AXES][3], const int64_t tri[3][3] )

static

Definition at line 98 of file Projections.cpp.

References crossProduct(), i, and NUM_AXES.

Referenced by CubeTriangleIsect::CubeTriangleIsect().

crossProduct() [1/2]

void crossProduct ( double res[3], const double a[3], const double b[3] )

static

Definition at line 62 of file Projections.cpp.

References b.

crossProduct() [2/2]

void crossProduct ( int64_t res[3], const int64_t a[3], const int64_t b[3] )

static

Method to perform cross-product

Definition at line 55 of file Projections.cpp.

References b.

Referenced by create_projection_axes(), and CubeTriangleIsect::CubeTriangleIsect().

dotProduct()

int64_t dotProduct ( const int64_t a[3], const int64_t b[3] )

static

Method to perform dot product

Definition at line 72 of file Projections.cpp.

References b.

Referenced by CubeTriangleIsect::CubeTriangleIsect().

normalize()

void normalize ( double a[3] )

static

Definition at line 77 of file Projections.cpp.

References sqrt.

Variable Documentation

centmap

const int centmap[3][3][3][2]

Initial value:

              = {
{{{0, 0}, {0, 1}, {1, 1}}, {{0, 2}, {0, 3}, {1, 3}}, {{2, 2}, {2, 3}, {3, 3}}},
 
{{{0, 4}, {0, 5}, {1, 5}}, {{0, 6}, {0, 7}, {1, 7}}, {{2, 6}, {2, 7}, {3, 7}}},
 
{{{4, 4}, {4, 5}, {5, 5}}, {{4, 6}, {4, 7}, {5, 7}}, {{6, 6}, {6, 7}, {7, 7}}}}

Definition at line 21 of file Projections.cpp.

edgemap

const int edgemap[12][2]

Initial value:

                  = {
    {0, 4},
    {1, 5},
    {2, 6},
    {3, 7},
    {0, 2},
    {1, 3},
    {4, 6},
    {5, 7},
    {0, 1},
    {2, 3},
    {4, 5},
    {6, 7},
}

Definition at line 28 of file Projections.cpp.

facemap

const int facemap[6][4]

Initial value:

                  = {
    {0, 1, 2, 3},
    {4, 5, 6, 7},
    {0, 1, 4, 5},
    {2, 3, 6, 7},
    {0, 2, 4, 6},
    {1, 3, 5, 7},
}

Definition at line 43 of file Projections.cpp.

vertmap

const int vertmap[8][3]

Initial value:

                  = {
    {0, 0, 0},
    {0, 0, 1},
    {0, 1, 0},
    {0, 1, 1},
    {1, 0, 0},
    {1, 0, 1},
    {1, 1, 0},
    {1, 1, 1},
}

Structures and classes for computing projections of triangles onto separating axes during scan conversion

Author

Tao Ju

Definition at line 10 of file Projections.cpp.

Referenced by CubeTriangleIsect::CubeTriangleIsect().