1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
// Ceres Solver - A fast non-linear least squares minimizer
// Copyright 2015 Google Inc. All rights reserved.
// http://ceres-solver.org/
//
// 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 Google 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.
//
// Author: sameeragarwal@google.com (Sameer Agarwal)
#include "ceres/function_sample.h"
#include "ceres/stringprintf.h"
namespace ceres {
namespace internal {
FunctionSample::FunctionSample()
: x(0.0),
vector_x_is_valid(false),
value(0.0),
value_is_valid(false),
vector_gradient_is_valid(false),
gradient(0.0),
gradient_is_valid(false) {}
FunctionSample::FunctionSample(const double x, const double value)
: x(x),
vector_x_is_valid(false),
value(value),
value_is_valid(true),
vector_gradient_is_valid(false),
gradient(0.0),
gradient_is_valid(false) {}
FunctionSample::FunctionSample(const double x,
const double value,
const double gradient)
: x(x),
vector_x_is_valid(false),
value(value),
value_is_valid(true),
vector_gradient_is_valid(false),
gradient(gradient),
gradient_is_valid(true) {}
std::string FunctionSample::ToDebugString() const {
return StringPrintf("[x: %.8e, value: %.8e, gradient: %.8e, "
"value_is_valid: %d, gradient_is_valid: %d]",
x, value, gradient, value_is_valid, gradient_is_valid);
}
} // namespace internal
} // namespace ceres
|
