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/*
* Copyright (c) 2008, Willow Garage, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the Willow Garage, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <vector>
#include <sys/time.h>
#include "tf/LinearMath/Transform.h"
void seed_rand()
{
//Seed random number generator with current microseond count
timeval temp_time_struct;
gettimeofday(&temp_time_struct,NULL);
srand(temp_time_struct.tv_usec);
};
int main(int argc, char **argv){
unsigned int runs = 400;
seed_rand();
std::vector<double> xvalues(runs), yvalues(runs), zvalues(runs);
for ( unsigned int i = 0; i < runs ; i++ )
{
xvalues[i] = 1.0 * ((double) rand() - (double)RAND_MAX /2.0) /(double)RAND_MAX;
yvalues[i] = 1.0 * ((double) rand() - (double)RAND_MAX /2.0) /(double)RAND_MAX;
zvalues[i] = 1.0 * ((double) rand() - (double)RAND_MAX /2.0) /(double)RAND_MAX;
}
//Useful Operator Overload
for ( unsigned int i = 0; i < runs ; i++ )
{
tf::Transform transform(tf::Quaternion(0,0,0), tf::Vector3(xvalues[i],yvalues[i],zvalues[i]));
tf::Quaternion initial(xvalues[i],yvalues[i],zvalues[i]);
tf::Quaternion final(xvalues[i],yvalues[i],zvalues[i]);
final = transform * initial;
std::printf("Useful Operator Overload: %f, angle between quaternions\n", initial.angle(final));
}
return 0;
}
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