47 lines
993 B
C
47 lines
993 B
C
#include "fdf.h"
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void rotate_x(t_point_3d **points, double angle, int size)
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{
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int i;
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double previous_y;
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i = 0;
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while (i < size)
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{
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previous_y = (*points)[i].y;
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(*points)[i].y = previous_y * cos(angle) + (*points)[i].z * sin(angle);
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(*points)[i].z = -previous_y * sin(angle) + (*points)[i].z * cos(angle);
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i++;
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}
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}
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void rotate_y(t_point_3d **points, double angle, int size)
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{
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int i;
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double previous_x;
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i = 0;
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while (i < size)
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{
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previous_x = (*points)[i].x;
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(*points)[i].x = previous_x * cos(angle) + (*points)[i].z * sin(angle);
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(*points)[i].z = -previous_x * sin(angle) + (*points)[i].z * cos(angle);
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i++;
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}
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}
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void rotate_z(t_point_3d **points, double angle, int size)
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{
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int i;
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double previous_x;
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double previous_y;
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i = 0;
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while (i < size)
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{
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previous_x = (*points)[i].x;
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previous_y = (*points)[i].y;
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(*points)[i].x = previous_x * cos(angle) - previous_y * sin(angle);
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(*points)[i].y = previous_x * sin(angle) + previous_y * cos(angle);
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i++;
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}
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}
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