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Cleanup example code

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Remove "using ceres:foo" directives from example code. The using
directives actually make the code harder to read unless you already
know the ceres API. By making the namespace explicit it is clear
to the reader that these are functions and objects from the Ceres
API.

Change-Id: I89b1281c754bf71c0f82e39e1607c5e40a148388
This commit is contained in:
Sameer Agarwal
2023-09-27 14:30:58 -07:00
parent 59182a42c3
commit 3712650941
10 changed files with 77 additions and 133 deletions
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examples/curve_fitting.cc
+10 -14
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@@ -31,12 +31,6 @@
#include "ceres/ceres.h"
#include "glog/logging.h"
using ceres::AutoDiffCostFunction;
using ceres::CostFunction;
using ceres::Problem;
using ceres::Solve;
using ceres::Solver;
// Data generated using the following octave code.
// randn('seed', 23497);
// m = 0.3;
@@ -137,28 +131,30 @@ struct ExponentialResidual {
int main(int argc, char** argv) {
google::InitGoogleLogging(argv[0]);
double m = 0.0;
double c = 0.0;
const double initial_m = 0.0;
const double initial_c = 0.0;
double m = initial_m;
double c = initial_c;
Problem problem;
ceres::Problem problem;
for (int i = 0; i < kNumObservations; ++i) {
problem.AddResidualBlock(
new AutoDiffCostFunction<ExponentialResidual, 1, 1, 1>(
new ceres::AutoDiffCostFunction<ExponentialResidual, 1, 1, 1>(
new ExponentialResidual(data[2 * i], data[2 * i + 1])),
nullptr,
&m,
&c);
}
Solver::Options options;
ceres::Solver::Options options;
options.max_num_iterations = 25;
options.linear_solver_type = ceres::DENSE_QR;
options.minimizer_progress_to_stdout = true;
Solver::Summary summary;
Solve(options, &problem, &summary);
ceres::Solver::Summary summary;
ceres::Solve(options, &problem, &summary);
std::cout << summary.BriefReport() << "\n";
std::cout << "Initial m: " << 0.0 << " c: " << 0.0 << "\n";
std::cout << "Initial m: " << initial_m << " c: " << initial_c << "\n";
std::cout << "Final m: " << m << " c: " << c << "\n";
return 0;
}