1 | // ----------------------------------------------------------------------- |
---|
2 | // Object2D.hh: Definition of Object2D, a class to hold pixel |
---|
3 | // information for a 2-dimensional object. |
---|
4 | // ----------------------------------------------------------------------- |
---|
5 | // Copyright (C) 2006, Matthew Whiting, ATNF |
---|
6 | // |
---|
7 | // This program is free software; you can redistribute it and/or modify it |
---|
8 | // under the terms of the GNU General Public License as published by the |
---|
9 | // Free Software Foundation; either version 2 of the License, or (at your |
---|
10 | // option) any later version. |
---|
11 | // |
---|
12 | // Duchamp is distributed in the hope that it will be useful, but WITHOUT |
---|
13 | // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
---|
14 | // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
---|
15 | // for more details. |
---|
16 | // |
---|
17 | // You should have received a copy of the GNU General Public License |
---|
18 | // along with Duchamp; if not, write to the Free Software Foundation, |
---|
19 | // Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA |
---|
20 | // |
---|
21 | // Correspondence concerning Duchamp may be directed to: |
---|
22 | // Internet email: Matthew.Whiting [at] atnf.csiro.au |
---|
23 | // Postal address: Dr. Matthew Whiting |
---|
24 | // Australia Telescope National Facility, CSIRO |
---|
25 | // PO Box 76 |
---|
26 | // Epping NSW 1710 |
---|
27 | // AUSTRALIA |
---|
28 | // ----------------------------------------------------------------------- |
---|
29 | #ifndef OBJECT2D_H |
---|
30 | #define OBJECT2D_H |
---|
31 | |
---|
32 | #include <iostream> |
---|
33 | #include <algorithm> |
---|
34 | #include <vector> |
---|
35 | #include <list> |
---|
36 | #include <duchamp/PixelMap/Scan.hh> |
---|
37 | #include <duchamp/PixelMap/Voxel.hh> |
---|
38 | |
---|
39 | namespace PixelInfo |
---|
40 | { |
---|
41 | |
---|
42 | /// @brief A class to store the pixel information for an object |
---|
43 | /// defined in a 2-dimensional plane. |
---|
44 | /// |
---|
45 | /// @details The object consists of a set of Scans (stored as a |
---|
46 | /// std::vector), together with basic information on the maximum, |
---|
47 | /// minimum, and average values (actually stored as xSum, ySum) for |
---|
48 | /// the x and y pixel values. |
---|
49 | |
---|
50 | class Object2D |
---|
51 | { |
---|
52 | public: |
---|
53 | Object2D(); |
---|
54 | Object2D(const Object2D& o); |
---|
55 | Object2D& operator= (const Object2D& o); |
---|
56 | virtual ~Object2D(){}; |
---|
57 | |
---|
58 | /// @brief Clear the Object and set the number of pixels to zero. |
---|
59 | void clear(){scanlist.clear(); numPix=0;}; |
---|
60 | |
---|
61 | /// @brief Make sure there are no overlapping or adjacent scans in the Scan list. |
---|
62 | void cleanup(); |
---|
63 | |
---|
64 | /// @brief Add a pixel to the Object, making sure no scans overlap afterwards. |
---|
65 | void addPixel(long x, long y); |
---|
66 | // /// @brief Add the (x,y) part of a Voxel to the Object, using addPixel(long,long) |
---|
67 | // void addPixel(Voxel &v){this->addPixel(v.getX(),v.getY());}; |
---|
68 | // /// @brief Add a Pixel to the Object, using addPixel(long,long) |
---|
69 | // void addPixel(Pixel &p){this->addPixel(p.getX(),p.getY());}; |
---|
70 | |
---|
71 | /// @brief Add a full Scan to the Object, making sure there are no overlapping scans afterwards. |
---|
72 | void addScan(Scan &scan); |
---|
73 | |
---|
74 | /// @brief Test whether a pixel (x,y) is in the Object. |
---|
75 | bool isInObject(long x, long y); |
---|
76 | /// @brief Test whether the (x,y) part of a Voxel is in the Object. |
---|
77 | bool isInObject(Voxel v){return this->isInObject(v.getX(),v.getY());}; |
---|
78 | |
---|
79 | /// @brief Test whether a given Scan overlaps with any pixels in the Object. |
---|
80 | bool scanOverlaps(Scan &scan); |
---|
81 | |
---|
82 | bool canMerge(Object2D &other, float threshS, bool flagAdj); |
---|
83 | bool isNear(Object2D &other, long gap); |
---|
84 | bool isClose(Object2D &other, float threshS, bool flagAdj); |
---|
85 | |
---|
86 | /// @brief Return the number of pixels in the Object. |
---|
87 | unsigned long getSize(){return numPix;}; |
---|
88 | |
---|
89 | /// @brief Return the number of Scans in the Object. |
---|
90 | long getNumScan(){return scanlist.size();}; |
---|
91 | |
---|
92 | /// @brief Return the scan list. |
---|
93 | std::vector<Scan> getScanlist(){return scanlist;}; |
---|
94 | |
---|
95 | /// @brief Get the i-th Scan in the Scan list. |
---|
96 | Scan getScan(int i){return scanlist[i];}; |
---|
97 | |
---|
98 | /// @brief Order the Scans in the list, using the < operator for Scans. |
---|
99 | void order(){std::stable_sort(scanlist.begin(),scanlist.end());}; |
---|
100 | //void order(){scanlist.sort();}; |
---|
101 | |
---|
102 | /// @brief Add values to the x- and y-axes, making sure to add the offsets to the sums and min/max values. |
---|
103 | void addOffsets(long xoff, long yoff); |
---|
104 | |
---|
105 | /// @brief Calculate the sums, mins, maxs for x&y -- should not be necessary as these are done when pixels & Scans are added. |
---|
106 | void calcParams(); |
---|
107 | |
---|
108 | /// @brief Return the average x-value. |
---|
109 | float getXaverage(){return xSum/float(numPix);}; |
---|
110 | |
---|
111 | /// @brief Return the average y-value. |
---|
112 | float getYaverage(){return ySum/float(numPix);}; |
---|
113 | |
---|
114 | long getXmin(){return xmin;}; |
---|
115 | long getYmin(){return ymin;}; |
---|
116 | long getXmax(){return xmax;}; |
---|
117 | long getYmax(){return ymax;}; |
---|
118 | |
---|
119 | /// @brief Return the number of distinct y-values. |
---|
120 | long getNumDistinctY(); |
---|
121 | /// @brief Return the number of distinct x-values. |
---|
122 | long getNumDistinctX(); |
---|
123 | |
---|
124 | /// @brief Return a measurement of the primary position angle |
---|
125 | double getPositionAngle(); |
---|
126 | /// @brief Return the lengths of the principal axes. |
---|
127 | std::pair<double,double> getPrincipalAxes(); |
---|
128 | /// @brief Find the best fitting ellipse weighted by some flux array |
---|
129 | bool findEllipse(bool weightByFlux, float *array, size_t xdim, size_t ydim, int xzero, int yzero, float x0, float y0); |
---|
130 | |
---|
131 | double major(){return majorAxis;}; |
---|
132 | double minor(){return minorAxis;}; |
---|
133 | double posAng(){return posAngle;}; |
---|
134 | |
---|
135 | /// @brief A stream output operator. |
---|
136 | friend std::ostream& operator<< ( std::ostream& theStream, Object2D& obj); |
---|
137 | |
---|
138 | /// @brief Adding two Objects together. |
---|
139 | friend Object2D operator+ (Object2D lhs, Object2D rhs); |
---|
140 | |
---|
141 | friend class ChanMap; |
---|
142 | friend class Object3D; |
---|
143 | friend class Detection; |
---|
144 | |
---|
145 | protected: |
---|
146 | std::vector<Scan> scanlist; ///< The list of Scans |
---|
147 | unsigned long numPix; ///< Number of pixels in the Object |
---|
148 | float xSum; ///< Sum of x values |
---|
149 | float ySum; ///< Sum of y values |
---|
150 | long xmin,xmax; ///< min and max x-values of object |
---|
151 | long ymin,ymax; ///< min and max y-values of object |
---|
152 | double majorAxis; ///< fitted major principal axis |
---|
153 | double minorAxis; ///< fitted minor principal axis |
---|
154 | double posAngle; ///< fitted position angle of principal axis |
---|
155 | }; |
---|
156 | |
---|
157 | } |
---|
158 | |
---|
159 | #endif //OBJECT2D_H |
---|