diff options
Diffstat (limited to 'indra/llmath/v2math.cpp')
-rw-r--r-- | indra/llmath/v2math.cpp | 252 |
1 files changed, 126 insertions, 126 deletions
diff --git a/indra/llmath/v2math.cpp b/indra/llmath/v2math.cpp index fd71c337fa..4649e13376 100644 --- a/indra/llmath/v2math.cpp +++ b/indra/llmath/v2math.cpp @@ -1,126 +1,126 @@ -/**
- * @file v2math.cpp
- * @brief LLVector2 class implementation.
- *
- * $LicenseInfo:firstyear=2000&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2010, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
-
-#include "linden_common.h"
-
-//#include "vmath.h"
-#include "v2math.h"
-#include "v3math.h"
-#include "v4math.h"
-#include "m4math.h"
-#include "m3math.h"
-#include "llquaternion.h"
-
-// LLVector2
-
-LLVector2 LLVector2::zero(0,0);
-
-
-// Non-member functions
-
-// Sets all values to absolute value of their original values
-// Returns true if data changed
-bool LLVector2::abs()
-{
- bool ret{ false };
-
- if (mV[0] < 0.f) { mV[0] = -mV[0]; ret = true; }
- if (mV[1] < 0.f) { mV[1] = -mV[1]; ret = true; }
-
- return ret;
-}
-
-
-F32 angle_between(const LLVector2& a, const LLVector2& b)
-{
- LLVector2 an = a;
- LLVector2 bn = b;
- an.normVec();
- bn.normVec();
- F32 cosine = an * bn;
- F32 angle = (cosine >= 1.0f) ? 0.0f :
- (cosine <= -1.0f) ? F_PI :
- acos(cosine);
- return angle;
-}
-
-bool are_parallel(const LLVector2 &a, const LLVector2 &b, float epsilon)
-{
- LLVector2 an = a;
- LLVector2 bn = b;
- an.normVec();
- bn.normVec();
- F32 dot = an * bn;
- if ( (1.0f - fabs(dot)) < epsilon)
- {
- return true;
- }
- return false;
-}
-
-
-F32 dist_vec(const LLVector2 &a, const LLVector2 &b)
-{
- F32 x = a.mV[0] - b.mV[0];
- F32 y = a.mV[1] - b.mV[1];
- return (F32) sqrt( x*x + y*y );
-}
-
-F32 dist_vec_squared(const LLVector2 &a, const LLVector2 &b)
-{
- F32 x = a.mV[0] - b.mV[0];
- F32 y = a.mV[1] - b.mV[1];
- return x*x + y*y;
-}
-
-F32 dist_vec_squared2D(const LLVector2 &a, const LLVector2 &b)
-{
- F32 x = a.mV[0] - b.mV[0];
- F32 y = a.mV[1] - b.mV[1];
- return x*x + y*y;
-}
-
-LLVector2 lerp(const LLVector2 &a, const LLVector2 &b, F32 u)
-{
- return LLVector2(
- a.mV[VX] + (b.mV[VX] - a.mV[VX]) * u,
- a.mV[VY] + (b.mV[VY] - a.mV[VY]) * u );
-}
-
-LLSD LLVector2::getValue() const
-{
- LLSD ret;
- ret[0] = mV[0];
- ret[1] = mV[1];
- return ret;
-}
-
-void LLVector2::setValue(const LLSD& sd)
-{
- mV[0] = (F32) sd[0].asReal();
- mV[1] = (F32) sd[1].asReal();
-}
-
+/** + * @file v2math.cpp + * @brief LLVector2 class implementation. + * + * $LicenseInfo:firstyear=2000&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2010, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA + * $/LicenseInfo$ + */ + +#include "linden_common.h" + +//#include "vmath.h" +#include "v2math.h" +#include "v3math.h" +#include "v4math.h" +#include "m4math.h" +#include "m3math.h" +#include "llquaternion.h" + +// LLVector2 + +LLVector2 LLVector2::zero(0,0); + + +// Non-member functions + +// Sets all values to absolute value of their original values +// Returns true if data changed +bool LLVector2::abs() +{ + bool ret{ false }; + + if (mV[0] < 0.f) { mV[0] = -mV[0]; ret = true; } + if (mV[1] < 0.f) { mV[1] = -mV[1]; ret = true; } + + return ret; +} + + +F32 angle_between(const LLVector2& a, const LLVector2& b) +{ + LLVector2 an = a; + LLVector2 bn = b; + an.normVec(); + bn.normVec(); + F32 cosine = an * bn; + F32 angle = (cosine >= 1.0f) ? 0.0f : + (cosine <= -1.0f) ? F_PI : + acos(cosine); + return angle; +} + +bool are_parallel(const LLVector2 &a, const LLVector2 &b, float epsilon) +{ + LLVector2 an = a; + LLVector2 bn = b; + an.normVec(); + bn.normVec(); + F32 dot = an * bn; + if ( (1.0f - fabs(dot)) < epsilon) + { + return true; + } + return false; +} + + +F32 dist_vec(const LLVector2 &a, const LLVector2 &b) +{ + F32 x = a.mV[0] - b.mV[0]; + F32 y = a.mV[1] - b.mV[1]; + return (F32) sqrt( x*x + y*y ); +} + +F32 dist_vec_squared(const LLVector2 &a, const LLVector2 &b) +{ + F32 x = a.mV[0] - b.mV[0]; + F32 y = a.mV[1] - b.mV[1]; + return x*x + y*y; +} + +F32 dist_vec_squared2D(const LLVector2 &a, const LLVector2 &b) +{ + F32 x = a.mV[0] - b.mV[0]; + F32 y = a.mV[1] - b.mV[1]; + return x*x + y*y; +} + +LLVector2 lerp(const LLVector2 &a, const LLVector2 &b, F32 u) +{ + return LLVector2( + a.mV[VX] + (b.mV[VX] - a.mV[VX]) * u, + a.mV[VY] + (b.mV[VY] - a.mV[VY]) * u ); +} + +LLSD LLVector2::getValue() const +{ + LLSD ret; + ret[0] = mV[0]; + ret[1] = mV[1]; + return ret; +} + +void LLVector2::setValue(const LLSD& sd) +{ + mV[0] = (F32) sd[0].asReal(); + mV[1] = (F32) sd[1].asReal(); +} + |