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greg |
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/* RCSid $Id$ */ |
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greg |
2.1 |
/* |
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** Author: Christian Reetz ([email protected]) |
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*/ |
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#ifndef __G3VECTOR_H |
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#define __G3VECTOR_H |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#include <stdio.h> |
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#include "gbasic.h" |
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#include "fvect.h" |
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typedef g3Float* g3Vec; |
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#define g3v_angle(v1,v2) (acos(g3v_dot((v1),(v2)))) |
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g3Vec g3v_create(); |
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void g3v_free(g3Vec v); |
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g3Vec g3v_copy(g3Vec dest,g3Vec src); |
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g3Vec g3v_zero(g3Vec v); |
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g3Vec g3v_set(g3Vec v,g3Float x,g3Float y,g3Float z); |
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g3Vec g3v_sane(g3Vec v); |
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g3Vec g3v_fromrad(g3Vec v,FVECT rv); |
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void g3v_torad(FVECT rv,g3Vec v); |
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/* |
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** Orderering is done component wise, with decreasing significance |
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** Returns -1, 0 or 1 if v1 is less, equal or greater than v2 |
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*/ |
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int g3v_epsorder(g3Vec v1,g3Vec v2); |
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/* |
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** Returns true if v1 and v2 are epsilon equal |
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*/ |
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int g3v_epseq(g3Vec v1,g3Vec v2); |
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int g3v_epszero(g3Vec v); |
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/* Euclidean length of vector */ |
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g3Float g3v_length(g3Vec v); |
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/* |
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** Common operations on vectors. All routines returns zero on errors or |
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** the result as a g3Float |
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*/ |
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g3Float g3v_dot(g3Vec v1,g3Vec v2); |
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g3Vec g3v_scale(g3Vec res,g3Vec v,g3Float sc); |
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g3Vec g3v_normalize(g3Vec v); |
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g3Vec g3v_cross(g3Vec res,g3Vec v1,g3Vec v2); |
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g3Vec g3v_sub(g3Vec res,g3Vec v1,g3Vec v2); |
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g3Vec g3v_add(g3Vec res,g3Vec v1,g3Vec v2); |
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g3Vec g3v_rotate(g3Vec res,g3Vec v,g3Vec rnorm,g3Float ang); |
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g3Vec g3v_print(g3Vec v,FILE* fp); |
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int g3v_read(g3Vec v,FILE* fp); |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif |
