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/* RCSid $Id$ */
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/*
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** Author: Christian Reetz ([email protected])
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*/
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#ifndef __G3AFFINE_H
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#define __G3AFFINE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "g3vector.h"
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#ifdef GL_CONVERSIONS
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#include "GL/gl.h"
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#endif
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typedef g3Float g3AVec[4];
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typedef g3Float g3ATrans[4][4];
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void g3av_copy(g3AVec res,g3AVec v);
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void g3at_tounit(g3ATrans t);
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void g3av_vectohom(g3AVec res,g3Vec v);
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void g3av_homtovec(g3Vec res,g3AVec h);
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int g3av_tonorm(g3AVec v);
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#ifdef GL_CONVERSIONS
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void g3at_get_openGL(g3ATrans t,GLdouble* glm);
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void g3at_from_openGL(g3ATrans t,GLdouble* glm);
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#endif
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void g3at_copy(g3ATrans t,g3ATrans tsrc);
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void g3at_print(g3ATrans t,FILE* outf);
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void g3at_comb(g3ATrans t,g3ATrans tf);
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void g3at_comb_to(g3ATrans res,g3ATrans t,g3ATrans tf);
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void g3at_translate(g3ATrans t,g3Vec tv);
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void g3at_add_trans(g3ATrans t,g3Vec tv);
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void g3at_prepend_trans(g3ATrans t,g3Vec tv);
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void g3at_rotate(g3ATrans t,g3Vec rnorm,g3Float ang);
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void g3at_add_rot(g3ATrans t,g3Vec rnorm,g3Float ang);
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void g3at_prepend_rot(g3ATrans t,g3Vec rnorm,g3Float ang);
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void g3at_btrans(g3ATrans t,g3Vec xv,g3Vec yv,g3Vec zv);
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int g3at_sph_ctrans(g3ATrans t,g3Vec vdir,g3Vec vup);
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int g3at_ctrans(g3ATrans t,g3Vec vdir,g3Vec vup);
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int g3at_inverse(g3ATrans t);
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void g3at_apply_h(g3ATrans t,g3AVec v);
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void g3at_iapply_h(g3Vec v,g3ATrans t);
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void g3at_apply(g3ATrans t,g3Vec v);
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void g3at_iapply(g3Vec v,g3ATrans t);
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#ifdef __cplusplus
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}
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#endif
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#endif
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