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/******************************************************************************
* Project: PROJ
* Purpose: Benchmark
* Author: Even Rouault, <even.rouault at spatialys.com>
*
******************************************************************************
* Copyright (c) 2022, Even Rouault, <even.rouault at spatialys.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*****************************************************************************/
#include "proj.h"
#include <stdlib.h> // rand()
#include <chrono>
#include <cmath> // HUGE_VAL
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <string>
static void usage() {
printf("Usage: bench_proj_trans [(--source-crs|-s) string]\n");
printf(" [(--target-crs|-t) string]\n");
printf(" [(--pipeline|-p) string]\n");
printf(" [(--loops|-l) number]\n");
printf(" [--noise-x number] [--noise-y number]\n");
printf(" coord_comp_1 coord_comp_2 [coord_comp_3] "
"[coord_comp_4]\n");
printf("\n");
printf("Both of --source-crs and --target_crs, or --pipeline must be "
"specified.\n");
printf("\n");
printf("Example: bench_proj_trans -s EPSG:4326 -t EPSG:32631 49 2\n");
exit(1);
}
int main(int argc, char *argv[]) {
std::string sourceCRS;
std::string targetCRS;
std::string pipeline;
int loops = 5 * 1000 * 1000;
double coord_comp[4] = {0, 0, 0, HUGE_VAL};
int coord_comp_counter = 0;
double noiseX = 0;
double noiseY = 0;
for (int i = 1; i < argc; ++i) {
if (strcmp(argv[i], "--source-crs") == 0 ||
strcmp(argv[i], "-s") == 0) {
if (i + 1 >= argc)
usage();
sourceCRS = argv[i + 1];
++i;
} else if (strcmp(argv[i], "--target-crs") == 0 ||
strcmp(argv[i], "-t") == 0) {
if (i + 1 >= argc)
usage();
targetCRS = argv[i + 1];
++i;
} else if (strcmp(argv[i], "--pipeline") == 0 ||
strcmp(argv[i], "-p") == 0) {
if (i + 1 >= argc)
usage();
pipeline = argv[i + 1];
++i;
} else if (strcmp(argv[i], "--loops") == 0 ||
strcmp(argv[i], "-l") == 0) {
if (i + 1 >= argc)
usage();
loops = atoi(argv[i + 1]);
++i;
} else if (strcmp(argv[i], "--noise-x") == 0) {
if (i + 1 >= argc)
usage();
noiseX = atof(argv[i + 1]);
++i;
} else if (strcmp(argv[i], "--noise-y") == 0) {
if (i + 1 >= argc)
usage();
noiseY = atof(argv[i + 1]);
++i;
} else if (argv[i][0] == '-' &&
!(argv[i][1] >= '0' && argv[i][1] <= '9')) {
usage();
} else if (coord_comp_counter < 4) {
coord_comp[coord_comp_counter++] = atof(argv[i]);
} else {
usage();
}
}
if (coord_comp_counter < 2)
usage();
PJ_CONTEXT *ctxt = proj_context_create();
PJ *P = nullptr;
if (!pipeline.empty()) {
P = proj_create(ctxt, pipeline.c_str());
} else if (!sourceCRS.empty() && !targetCRS.empty()) {
P = proj_create_crs_to_crs(ctxt, sourceCRS.c_str(), targetCRS.c_str(),
nullptr);
} else {
usage();
}
if (P == nullptr) {
exit(1);
}
PJ_COORD c;
c.v[0] = coord_comp[0];
c.v[1] = coord_comp[1];
c.v[2] = coord_comp[2];
c.v[3] = coord_comp[3];
PJ_COORD c_ori = c;
auto res = proj_trans(P, PJ_FWD, c);
if (coord_comp_counter == 2) {
printf("%.15g %.15g -> %.15g %.15g\n", c.v[0], c.v[1], res.v[0],
res.v[1]);
} else if (coord_comp_counter == 3) {
printf("%.15g %.15g %.15g -> %.15g %.15g %.15g\n", c.v[0], c.v[1],
c.v[2], res.v[0], res.v[1], res.v[2]);
} else {
printf("%.15g %.15g %.15g %.15g -> %.15g %.15g %.15g %.15g\n", c.v[0],
c.v[1], c.v[2], c.v[3], res.v[0], res.v[1], res.v[2], res.v[3]);
}
// Start by timing just noise generation
double dummy = 0;
auto start_noise = std::chrono::system_clock::now();
for (int i = 0; i < loops; ++i) {
if (noiseX != 0)
c.v[0] = c_ori.v[0] + noiseX * (2 * double(rand()) / RAND_MAX - 1);
if (noiseY != 0)
c.v[1] = c_ori.v[1] + noiseY * (2 * double(rand()) / RAND_MAX - 1);
dummy += c.v[0];
dummy += c.v[1];
}
auto end_noise = std::chrono::system_clock::now();
auto start = std::chrono::system_clock::now();
for (int i = 0; i < loops; ++i) {
if (noiseX != 0)
c.v[0] = c_ori.v[0] + noiseX * (2 * double(rand()) / RAND_MAX - 1);
if (noiseY != 0)
c.v[1] = c_ori.v[1] + noiseY * (2 * double(rand()) / RAND_MAX - 1);
dummy += c.v[0];
dummy += c.v[1];
proj_trans(P, PJ_FWD, c);
}
auto end = std::chrono::system_clock::now();
proj_destroy(P);
proj_context_destroy(ctxt);
auto elapsed_ms = std::chrono::duration_cast<std::chrono::milliseconds>(
(end - start) - (end_noise - start_noise));
printf("Duration: %d ms\n", static_cast<int>(elapsed_ms.count()));
printf("Throughput: %.02f million coordinates/s\n",
1e-3 * static_cast<double>(loops) /
static_cast<double>(elapsed_ms.count()) +
dummy * 1e-300);
return 0;
}
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