LSST Applications g042eb84c57+730a74494b,g04e9c324dd+8c5ae1fdc5,g134cb467dc+1f1e3e7524,g199a45376c+0ba108daf9,g1fd858c14a+fa7d31856b,g210f2d0738+f66ac109ec,g262e1987ae+83a3acc0e5,g29ae962dfc+d856a2cb1f,g2cef7863aa+aef1011c0b,g35bb328faa+8c5ae1fdc5,g3fd5ace14f+a1e0c9f713,g47891489e3+0d594cb711,g4d44eb3520+c57ec8f3ed,g4d7b6aa1c5+f66ac109ec,g53246c7159+8c5ae1fdc5,g56a1a4eaf3+fd7ad03fde,g64539dfbff+f66ac109ec,g67b6fd64d1+0d594cb711,g67fd3c3899+f66ac109ec,g6985122a63+0d594cb711,g74acd417e5+3098891321,g786e29fd12+668abc6043,g81db2e9a8d+98e2ab9f28,g87389fa792+8856018cbb,g89139ef638+0d594cb711,g8d7436a09f+80fda9ce03,g8ea07a8fe4+760ca7c3fc,g90f42f885a+033b1d468d,g97be763408+a8a29bda4b,g99822b682c+e3ec3c61f9,g9d5c6a246b+0d5dac0c3d,ga41d0fce20+9243b26dd2,gbf99507273+8c5ae1fdc5,gd7ef33dd92+0d594cb711,gdab6d2f7ff+3098891321,ge410e46f29+0d594cb711,geaed405ab2+c4bbc419c6,gf9a733ac38+8c5ae1fdc5,w.2025.38
LSST Data Management Base Package
Loading...
Searching...
No Matches
functional.cc
Go to the documentation of this file.
1/*
2 * LSST Data Management System
3 * Copyright 2017 AURA/LSST.
4 *
5 * This product includes software developed by the
6 * LSST Project (http://www.lsst.org/).
7 *
8 * This program is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the LSST License Statement and
19 * the GNU General Public License along with this program. If not,
20 * see <https://www.lsstcorp.org/LegalNotices/>.
21 */
22#include <stdexcept>
23#include <string>
24
25#include "astshim/functional.h"
26#include "astshim/UnitMap.h"
27#include "astshim/UnitNormMap.h"
28#include "astshim/ParallelMap.h"
29#include "astshim/SeriesMap.h"
30
31namespace ast {
32
33std::shared_ptr<FrameSet> append(FrameSet const& first, FrameSet const& second) {
34 std::shared_ptr<FrameSet> const merged = first.copy();
35 std::shared_ptr<FrameSet> const newFrames = second.copy();
36
37 newFrames->setCurrent(FrameSet::BASE);
38 int const joinNAxes = first.getFrame(FrameSet::CURRENT)->getNAxes();
39 merged->addFrame(FrameSet::CURRENT, UnitMap(joinNAxes), *newFrames);
40
41 // All frame numbers from `second` have been offset in `merged` by number of frames in `first`
42 int const mergedCurrent = first.getNFrame() + second.getCurrent();
43 merged->setCurrent(mergedCurrent);
44
45 return merged;
46}
47
49 auto naxes = center.size();
50 if (mapping1d.getNIn() != 1) {
51 throw std::invalid_argument("mapping1d has " + std::to_string(mapping1d.getNIn()) +
52 " inputs, instead of 1");
53 }
54 if (mapping1d.getNOut() != 1) {
55 throw std::invalid_argument("mapping1d has " + std::to_string(mapping1d.getNOut()) +
56 " outputs, instead of 1");
57 }
58 auto unitNormMap = UnitNormMap(center);
60 unitNormMap.then(UnitMap(naxes).under(mapping1d)).then(*unitNormMap.inverted()));
61}
62
63} // namespace ast
A FrameSet consists of a set of one or more Frames (which describe coordinate systems),...
Definition FrameSet.h:99
static int constexpr CURRENT
index of current frame
Definition FrameSet.h:105
static int constexpr BASE
index of base frame
Definition FrameSet.h:104
An abstract base class for objects which transform one set of coordinates to another.
Definition Mapping.h:59
int getNOut() const
Get NOut: the number of output axes.
Definition Mapping.h:82
int getNIn() const
Get NIn: the number of input axes.
Definition Mapping.h:77
A UnitMap is a unit (null) Mapping that has no effect on the coordinates supplied to it.
Definition UnitMap.h:44
The forward transformation of a UnitNormMap subtracts the specified centre and then transforms the re...
Definition UnitNormMap.h:53
T make_shared(T... args)
AST wrapper classes and functions.
std::shared_ptr< FrameSet > append(FrameSet const &first, FrameSet const &second)
Construct a FrameSet that performs two transformations in series.
Definition functional.cc:33
std::shared_ptr< Mapping > makeRadialMapping(std::vector< double > const &center, Mapping const &mapping1d)
Construct a radially symmetric mapping from a 1-dimensional mapping.
Definition functional.cc:48
T size(T... args)
T to_string(T... args)