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LSST Data Management Base Package
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PixelRegion.h
Go to the documentation of this file.
1// -*- lsst-c++ -*-
2/*
3 * LSST Data Management System
4 * Copyright 2008, 2009, 2010 LSST Corporation.
5 *
6 * This product includes software developed by the
7 * LSST Project (http://www.lsst.org/).
8 *
9 * This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation, either version 3 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the LSST License Statement and
20 * the GNU General Public License along with this program. If not,
21 * see <http://www.lsstcorp.org/LegalNotices/>.
22 */
23
24#ifndef LSST_AFW_GEOM_ELLIPSES_PixelRegion_h_INCLUDED
25#define LSST_AFW_GEOM_ELLIPSES_PixelRegion_h_INCLUDED
26
27#include <vector>
28
29#include "lsst/geom/Box.h"
30#include "lsst/afw/geom/Span.h"
32
33namespace lsst {
34namespace afw {
35namespace geom {
36namespace ellipses {
37
46class PixelRegion final {
47public:
48
50 using Iterator = std::vector<Span>::const_iterator;
51
53 explicit PixelRegion(Ellipse const& ellipse);
54
56
57 PixelRegion(PixelRegion const&) = default;
59 PixelRegion& operator=(PixelRegion const&) = default;
61 ~PixelRegion() = default;
63
65
68 Iterator begin() const { return _spans.begin(); }
69 Iterator end() const { return _spans.end(); }
71
80 lsst::geom::Box2I const& getBBox() const { return _bbox; }
81
88 Span const getSpanAt(int y) const;
89
90private:
91 std::vector<Span> _spans;
93};
94
95} // namespace ellipses
96} // namespace geom
97} // namespace afw
98} // namespace lsst
99
100#endif // !LSST_AFW_GEOM_ELLIPSES_PixelRegion_h_INCLUDED
int y
Definition SpanSet.cc:48
A range of pixels within one row of an Image.
Definition Span.h:47
An ellipse defined by an arbitrary BaseCore and a center point.
Definition Ellipse.h:51
A pixelized region containing all pixels whose centers are within an Ellipse.
Definition PixelRegion.h:46
PixelRegion & operator=(PixelRegion const &)=default
lsst::geom::Box2I const & getBBox() const
Return the bounding box of the pixel region.
Definition PixelRegion.h:80
PixelRegion(PixelRegion &&)=default
Iterator begin() const
Iterator range over Spans whose pixels are within the Ellipse.
Definition PixelRegion.h:68
PixelRegion(Ellipse const &ellipse)
Construct a PixelRegion from an Ellipse.
std::vector< Span >::const_iterator Iterator
Iterator type used by begin() and end().
Definition PixelRegion.h:50
Span const getSpanAt(int y) const
Return the span at the given y coordinate value.
PixelRegion(PixelRegion const &)=default
PixelRegion is copy and move constructable and assignable.
PixelRegion & operator=(PixelRegion &&)=default
An integer coordinate rectangle.
Definition Box.h:55