/*! ========================================================================
** Extended Template and Library Test Suite
** Angle Class Test
** $Id$
**
** Copyright (c) 2002 Robert B. Quattlebaum Jr.
** Copyright (c) 2008 Chris Moore
**
** This package is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License as
** published by the Free Software Foundation; either version 2 of
** the License, or (at your option) any later version.
**
** This package 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
** General Public License for more details.
**
** === N O T E S ===========================================================
**
** ========================================================================= */
/* === H E A D E R S ======================================================= */
#include <stdio.h>
#include <ETL/angle>
#include <ETL/fastangle>
#include <ETL/clock>
#include <ETL/bezier>
#include <ETL/hermite>
/* === M A C R O S ========================================================= */
ETL_FASTANGLE_INIT();
using namespace std;
using namespace etl;
/* === C L A S S E S ======================================================= */
int fastangle_test(void)
{
int ret=0;
float largest_error;
{
angle theta;
fastangle theta2;
float error;
largest_error=0.0f;
for(
theta=angle::degrees(0),theta2=fastangle::degrees(0);
theta<=angle::degrees(360);
theta+=angle::degrees(10),theta2+=fastangle::degrees(10)
)
{
error=(float)angle::sin(theta).get() -(float)fastangle::sin(theta2).get();
/*
fprintf(stderr,"angle: sin(%d)=%f ;\tfastangle: sin(%d)=%f ;\t diff: %f\n",
(int)angle::degrees(theta),
(float)angle::sin(theta),
(int)fastangle::degrees(theta2),
(float)fastangle::sin(theta2),
error
);
*/
if(error > largest_error)
largest_error=error;
if(error < -largest_error)
largest_error=-error;
}
}
printf("fastangle: Largest SIN error: (+/-)%f\n",largest_error);
if(largest_error>0.075)ret++;
{
angle theta;
fastangle theta2;
float error;
largest_error=0.0f;
for(
theta=angle::degrees(0),theta2=fastangle::degrees(0);
theta<=angle::degrees(360);
theta+=angle::degrees(10),theta2+=fastangle::degrees(10)
)
{
error=(float)angle::cos(theta).get() -(float)fastangle::cos(theta2).get();
/*
fprintf(stderr,"angle: cos(%d)=%f ;\tfastangle: cos(%d)=%f ;\t diff: %f\n",
(int)angle::degrees(theta),
(float)angle::cos(theta),
(int)fastangle::degrees(theta2),
(float)fastangle::cos(theta2),
error
);
*/
if(error > largest_error)
largest_error=error;
if(error < -largest_error)
largest_error=-error;
}
}
printf("fastangle: Largest COS error: (+/-)%f\n",largest_error);
if(largest_error>0.075)ret++;
{
double val;
float error;
largest_error=0.0f;
for(
val=-1.0f;
val<1.0f;
val+=0.01
)
{
error=angle::radians(angle::sin(val)).get() -fastangle::radians(fastangle::sin(val)).get();
/*
fprintf(stderr,"angle: asin(%f)=%frad ;\tfastangle: asin(%f)=%frad ;\t diff: %f\n",
val,
(float)(angle::radians)angle::sin(val),
val,
(float)(fastangle::radians)fastangle::sin(val),
error
);
*/
if(error > largest_error)
largest_error=error;
if(error < -largest_error)
largest_error=-error;
}
}
printf("fastangle: Largest ASIN error: (+/-)%frad\n",largest_error);
if(largest_error>0.075)ret++;
{
double val;
float error;
largest_error=0.0f;
for(
val=-1.0f;
val<1.0f;
val+=0.01
)
{
error=angle::radians(angle::cos(val)).get() -fastangle::radians(fastangle::cos(val)).get();
/*
fprintf(stderr,"angle: acos(%f)=%frad ;\tfastangle: acos(%f)=%frad ;\t diff: %f\n",
val,
(float)(angle::radians)angle::cos(val),
val,
(float)(fastangle::radians)fastangle::cos(val),
error
);
*/
if(error > largest_error)
largest_error=error;
if(error < -largest_error)
largest_error=-error;
}
}
printf("fastangle: Largest ACOS error: (+/-)%frad\n",largest_error);
if(largest_error>0.075)ret++;
{
angle theta;
fastangle theta2;
float error;
largest_error=0.0f;
for(
theta=angle::degrees(0),theta2=fastangle::degrees(0);
theta<angle::degrees(360);
theta+=angle::degrees(38),theta2+=fastangle::degrees(38)
)
{
error=angle::tan(theta).get() - fastangle::tan(theta2).get();
/*
fprintf(stderr,"angle: tan(%d)=%f ;\tfastangle: tan(%d)=%f ;\t diff: %f\n",
(int)angle::degrees(theta),
(float)angle::tan(theta),
(int)fastangle::degrees(theta2),
(float)fastangle::tan(theta2),
error
);
*/
if(error > largest_error)
largest_error=error;
if(error < -largest_error)
largest_error=-error;
}
}
printf("fastangle: Largest TAN error: (+/-)%f\n",largest_error);
if(largest_error>0.75)ret++;
{
double val;
float error;
largest_error=0.0f;
for(
val=-4.0f;
val<4.0f;
val+=0.1
)
{
error=angle::radians(angle::tan(val)).get() -fastangle::radians(fastangle::tan(val)).get();
/*
fprintf(stderr,"angle: atan(%f)=%frad ;\tfastangle: atan(%f)=%frad ;\t diff: %f\n",
val,
(float)(angle::radians)angle::tan(val),
val,
(float)(fastangle::radians)fastangle::tan(val),
error
);
*/
if(error > largest_error)
largest_error=error;
if(error < -largest_error)
largest_error=-error;
}
}
printf("fastangle: Largest ATAN error: (+/-)%frad\n",largest_error);
if(largest_error>0.075)ret++;
{
angle theta;
float error;
largest_error=0.0f;
for(
theta=angle::degrees(-179);
theta<angle::degrees(180);
theta+=angle::degrees(5)
)
{
error=angle::radians(theta).get()-fastangle::radians(fastangle::tan(angle::sin(theta).get(),angle::cos(theta).get())).get();
/*
fprintf(stderr,"\tfastangle: atan2(%f, %f)=%fdeg (%f) ;\t diff: %frad\n",
(float)angle::sin(theta),
(float)angle::cos(theta),
(float)(fastangle::degrees)fastangle::tan(angle::sin(theta),angle::cos(theta)),
(float)(fastangle::degrees)fastangle::tan((float)angle::sin(theta)/(float)angle::cos(theta)),
error
);
*/
if(error > largest_error)
largest_error=error;
if(error < -largest_error)
largest_error=-error;
}
}
printf("fastangle: Largest ATAN2 error: (+/-)%frad\n",largest_error);
if(largest_error>0.075)ret++;
printf("constant tests: %f==%f\n",
(float)angle::degrees(angle::tan(1.01)).get(),
(float)fastangle::degrees(fastangle::tan(1.01)).get());
printf("constant tests: %f==%f\n",
(float)angle::degrees(angle::tan(-1.0)).get(),
(float)fastangle::degrees(fastangle::tan(-1.0)).get());
return ret;
}
template <class Angle>
void angle_cos_speed_test(void)
{
Angle a,b,c,d;
float tmp,tmp2;
for(tmp=-1.0;tmp<1.0;tmp+=0.000002)
{
a=(typename Angle::cos)(tmp);
b=(typename Angle::cos)(tmp);
c=(typename Angle::cos)(tmp);
d=(typename Angle::cos)(tmp);
tmp2=((typename Angle::cos)(a)).get();
tmp2=((typename Angle::cos)(b)).get();
tmp2=((typename Angle::cos)(c)).get();
tmp2=((typename Angle::cos)(d)).get();
}
}
template <class Angle>
void angle_sin_speed_test(void)
{
Angle a,b,c,d;
float tmp,tmp2;
for(tmp=-1.0;tmp<1.0;tmp+=0.000002)
{
a=(typename Angle::sin)(tmp);
b=(typename Angle::sin)(tmp);
c=(typename Angle::sin)(tmp);
d=(typename Angle::sin)(tmp);
tmp2=((typename Angle::sin)(a)).get();
tmp2=((typename Angle::sin)(b)).get();
tmp2=((typename Angle::sin)(c)).get();
tmp2=((typename Angle::sin)(d)).get();
}
}
template <class Angle>
void angle_tan_speed_test(void)
{
Angle a,b,c,d;
float tmp,tmp2;
for(tmp=-1.0;tmp<1.0;tmp+=0.000002)
{
a=(typename Angle::tan)(tmp);
b=(typename Angle::tan)(tmp);
c=(typename Angle::tan)(tmp);
d=(typename Angle::tan)(tmp);
tmp2=((typename Angle::tan)(a)).get();
tmp2=((typename Angle::tan)(b)).get();
tmp2=((typename Angle::tan)(c)).get();
tmp2=((typename Angle::tan)(d)).get();
}
}
template <class Angle, class mytan>
void angle_atan2_speed_test(void)
{
Angle a,b,c;
float x,y;
for(y=-10.0;y<10.0;y+=0.05)
for(x=-10.0;x<10.0;x+=0.05)
{
a=mytan(y,x);
a=mytan(x,y);
b=mytan(y,x);
b=mytan(x,y);
c=mytan(y,x);
c=mytan(x,y);
a=mytan(y,x);
a=mytan(x,y);
b=mytan(y,x);
b=mytan(x,y);
c=mytan(y,x);
c=mytan(x,y);
}
}
int fastangle_speed_test(void)
{
int ret=0;
float
angle_cos_time,
fastangle_cos_time,
angle_tan_time,
fastangle_tan_time,
angle_atan2_time,
fastangle_atan2_time,
angle_sin_time,
fastangle_sin_time ;
etl::clock MyTimer;
MyTimer.reset();
angle_cos_speed_test<angle>();
angle_cos_time=MyTimer();
printf("angle: Cosine test: %f seconds\n",angle_cos_time);
MyTimer.reset();
angle_cos_speed_test<fastangle>();
fastangle_cos_time=MyTimer();
printf("fastangle: Cosine test: %f seconds\n",fastangle_cos_time);
printf("fastangle is %.02f%% faster\n",(angle_cos_time/fastangle_cos_time)*100.0-100.0);
MyTimer.reset();
angle_sin_speed_test<angle>();
angle_sin_time=MyTimer();
printf("angle: Sine test: %f seconds\n",angle_sin_time);
MyTimer.reset();
angle_sin_speed_test<fastangle>();
fastangle_sin_time=MyTimer();
printf("fastangle: Sine test: %f seconds\n",fastangle_sin_time);
printf("fastangle is %.02f%% faster\n",(angle_sin_time/fastangle_sin_time)*100.0-100.0);
MyTimer.reset();
angle_tan_speed_test<angle>();
angle_tan_time=MyTimer();
printf("angle: Tangent test: %f seconds\n",angle_tan_time);
MyTimer.reset();
angle_tan_speed_test<fastangle>();
fastangle_tan_time=MyTimer();
printf("fastangle: Tangent test: %f seconds\n",fastangle_tan_time);
printf("fastangle is %.02f%% faster\n",(angle_tan_time/fastangle_tan_time)*100.0-100.0);
MyTimer.reset();
angle_atan2_speed_test<angle,angle::tan>();
angle_atan2_time=MyTimer();
printf("angle: arcTangent2 test: %f seconds\n",angle_atan2_time);
MyTimer.reset();
angle_atan2_speed_test<fastangle,fastangle::tan>();
fastangle_atan2_time=MyTimer();
printf("fastangle: arcTangent2 test: %f seconds\n",fastangle_atan2_time);
printf("fastangle is %.02f%% faster\n",(angle_atan2_time/fastangle_atan2_time)*100.0-100.0);
return ret;
}
int angle_test()
{
int ret=0;
float dist;
dist=angle::deg(angle::deg(330).dist(angle::deg(30))).get();
printf("angle: angular difference between 330deg and 30deg is %0.1fdeg\n",dist);
if(floor(dist+0.5)!=300)
{
printf("angle: error: should be 300deg!\n");
ret++;
}
dist=angle::deg(angle::deg(30).dist(angle::deg(330))).get();
printf("angle: angular difference between 30deg and 330deg is %0.1fdeg\n",dist);
if(floor(dist+0.5)!=-300)
{
printf("angle: error: should be -300deg!\n");
ret++;
}
dist=angle::deg(angle::deg(30).dist(angle::deg(-30))).get();
printf("angle: angular difference between 30deg and -30deg is %0.1fdeg\n",dist);
if(floor(dist+0.5)!=60)
{
printf("angle: error: should be 60deg!\n");
ret++;
}
dist=angle::deg(angle::deg(-30).dist(angle::deg(30))).get();
printf("angle: angular difference between -30deg and 30deg is %0.1fdeg\n",dist);
if(floor(dist+0.5)!=-60)
{
printf("angle: error: should be -60deg!\n");
ret++;
}
dist=angle::deg(angle::deg(20).dist(angle::deg(195))).get();
printf("angle: angular difference between 20deg and 195deg is %0.1fdeg\n",dist);
if(floor(dist+0.5)!=-175)
{
printf("angle: error: should be -175deg!\n");
ret++;
}
dist=angle::deg(angle::deg(20).dist(angle::deg(205))).get();
printf("angle: angular difference between 20deg and 205deg is %0.1fdeg\n",dist);
if(floor(dist+0.5)!=-185)
{
printf("angle: error: should be -185deg!\n");
ret++;
}
int i;
for(i=-1000;i<1000;i++)
{
dist=angle::deg(angle::deg(20+i+360).dist(angle::deg(205+i-360))).get();
if(floor(dist+0.5)!=535)
{
printf("angle: error: Badness at %d!\n",i);
ret++;
}
}
for(i=-1000;i<1000;i++)
{
dist=angle::deg(angle::deg(20+i-360).dist(angle::deg(195+i+360))).get();
if(floor(dist+0.5)!=-895)
{
printf("angle: error: Badness at %d!\n",i);
ret++;
}
}
{
float f;
angle a(angle::deg(-2005));
angle b(angle::deg(200));
affine_combo<angle> combo;
hermite<angle> hermie(a,b,b.dist(a),b.dist(a));
for(f=0;f<1.001;f+=0.1)
{
printf("@%f--affine_combo: %f hermie: %f\n",angle::deg(f).get(),angle::deg(combo(a,b,f)).get(),angle::deg(hermie(f)).get());
}
}
return ret;
}
/* === E N T R Y P O I N T ================================================= */
int main()
{
int error=0;
error+=fastangle_test();
error+=fastangle_speed_test();
error+=angle_test();
return error;
}