[2689] | 1 | // |
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| 2 | // C++ Interface: PlotHelper |
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| 3 | // |
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| 4 | // Description: |
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| 5 | // A small helper class to handle direction coordinate in asapplotter |
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| 6 | // |
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| 7 | // Author: Kana Sugimoto <kana.sugi@nao.ac.jp>, (C) 2012 |
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| 8 | // |
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| 9 | // Copyright: See COPYING file that comes with this distribution |
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| 10 | // |
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| 11 | // |
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| 12 | |
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| 13 | // casacore |
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| 14 | #include <casa/Arrays/Vector.h> |
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| 15 | #include <casa/Quanta/Quantum.h> |
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| 16 | #include <casa/Quanta/QuantumHolder.h> |
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| 17 | #include <measures/Measures/MDirection.h> |
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| 18 | #include <casa/Logging/LogIO.h> |
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| 19 | |
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| 20 | #include "PlotHelper.h" |
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| 21 | |
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[2690] | 22 | //#define KS_DEBUG |
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[2689] | 23 | |
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| 24 | using namespace std ; |
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| 25 | using namespace casa ; |
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| 26 | using namespace asap ; |
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| 27 | |
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| 28 | namespace asap { |
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| 29 | |
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| 30 | PlotHelper::PlotHelper() : dircoord_(0) |
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| 31 | { |
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| 32 | #ifdef KS_DEBUG |
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| 33 | cout << "Default constructor nrow = " << data_.nrow() << endl; |
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| 34 | #endif |
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| 35 | }; |
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| 36 | |
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| 37 | PlotHelper::PlotHelper( const ScantableWrapper &s) : dircoord_(0) |
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| 38 | { |
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| 39 | #ifdef KS_DEBUG |
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| 40 | cout << "Constructing PlotHelper with scantable wrapper" << endl; |
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| 41 | #endif |
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| 42 | setScantable(s); |
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| 43 | }; |
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| 44 | |
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| 45 | PlotHelper::~PlotHelper(){ |
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| 46 | #ifdef KS_DEBUG |
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| 47 | cout << "Called PlotHelper destructor" << endl; |
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| 48 | #endif |
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| 49 | if (dircoord_){ |
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| 50 | #ifdef KS_DEBUG |
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| 51 | cout << "Destructing dircoord_" << endl; |
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| 52 | #endif |
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| 53 | delete dircoord_; |
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| 54 | dircoord_ = 0; |
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| 55 | } |
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| 56 | }; |
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| 57 | |
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| 58 | void PlotHelper::setScantable( const ScantableWrapper &s ) |
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| 59 | { |
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| 60 | #ifdef KS_DEBUG |
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| 61 | cout << "Setting scantable" << endl; |
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| 62 | #endif |
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| 63 | data_ = s ; |
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| 64 | }; |
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| 65 | |
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| 66 | // void PlotHelper::setGridParam(const int nx, const int ny, const string cellx, const string celly, string center, const string projection){ |
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| 67 | // // Value check of nx and ny |
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| 68 | // if (nx < 1) |
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| 69 | // throw(AipsError("nx should be > 0")); |
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| 70 | // if (ny < 1) |
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| 71 | // throw(AipsError("ny should be > 0")); |
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| 72 | // // Destroy old coord |
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| 73 | // if (dircoord_){ |
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| 74 | // cout << "Destructing dircoord_" << endl; |
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| 75 | // delete dircoord_; |
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| 76 | // dircoord_ = 0; |
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| 77 | // } |
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| 78 | |
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| 79 | // // |
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| 80 | // Double incX, incY; |
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| 81 | // Double centX, centY; |
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| 82 | // MDirection::Types mdt; |
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| 83 | // // projection |
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| 84 | // Projection::Type projType(Projection::type(String(projname))); |
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| 85 | // /// |
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| 86 | // incX = cellx; |
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| 87 | // incY = celly; |
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| 88 | // centX = centx; |
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| 89 | // centY = centy; |
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| 90 | // MDirection::getType(mdt, String(epoch)); |
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| 91 | // /// |
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| 92 | // // Get map extent |
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| 93 | // Double xmax, xmin, ymax, ymin; |
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| 94 | // ROArrayColumn<Double> dirCol; |
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| 95 | // MDirection::Types stdt; |
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| 96 | // const bool stset = (data_ ? true : false); |
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| 97 | |
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| 98 | // if (stset) { |
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| 99 | // dirCol_.attach( data_, "DIRECTION" ); |
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| 100 | // Matrix<Double> direction = dirCol.getColumn(); |
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| 101 | // minMax(xmin, xmax, direction.row( 0 )); |
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| 102 | // minMax(ymin, ymax, direction.row( 1 )); |
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| 103 | // if (!MDirection::getType(stdt, data_.getDirectionRefString())) |
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| 104 | // throw AipsError("Failed to get direction reference from scantable."); |
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| 105 | // } |
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| 106 | // // center |
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| 107 | // if (center.size() == 0){ |
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| 108 | // if (!stset) |
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| 109 | // throw AipsError("Scantable is not set. Could not resolve map center."); |
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| 110 | // cenX = 0.5 * (xmin + xmax); |
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| 111 | // cenY = 0.5 * (ymin + ymax); |
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| 112 | // mdt = stdt; |
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| 113 | // } else { |
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| 114 | // if (!MDirection::getType(mdt,center)) |
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| 115 | // throw AipsError("Invalid direction reference in center"); |
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| 116 | // if (stset && mdt != stdt) |
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| 117 | // throw AipsError("Direction reference of center should be the same as input scantable"); |
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| 118 | // MDirection centdir; |
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| 119 | // centdir.setRefString(String(center)); |
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| 120 | // /// |
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| 121 | // Vector<Double> centrad; |
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| 122 | // centrad = centdir.getAngle("rad").getValue(); |
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| 123 | // cenX = centrad[0]; |
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| 124 | // cenY = centrad[1]; |
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| 125 | // // rotaion |
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| 126 | // if (stset) { |
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| 127 | // Double rotnum = round(abs(cenX - )/(C::)) |
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| 128 | // } |
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| 129 | // } |
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| 130 | // // cell |
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| 131 | // Quantum<Double> qcellx, qcelly; |
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| 132 | // if (cellx.size() == 0 && celly.size() == 0){ |
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| 133 | // // Need resolution |
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| 134 | // if (!stset) |
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| 135 | // throw AipsError("Scantable is not set. Could not resolve cell size."); |
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| 136 | // } else { |
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| 137 | // if (cellx.size() != 0){ |
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| 138 | // readQuantity(qcellx, String(cellx)); |
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| 139 | // qcellx.convert("rad"); |
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| 140 | // } else if (celly.size() == 0) { |
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| 141 | // celly = cellx; |
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| 142 | // |
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| 143 | // } |
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| 144 | |
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| 145 | void PlotHelper::setGridParamVal(const int nx, const int ny, const double cellx, const double celly, const double centx, const double centy, const string epoch, const string projname){ |
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| 146 | // Value check of nx and ny |
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| 147 | if (nx < 1) |
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| 148 | throw(AipsError("nx should be > 0")); |
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| 149 | if (ny < 1) |
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| 150 | throw(AipsError("ny should be > 0")); |
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| 151 | // Destroy old coord |
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| 152 | if (dircoord_){ |
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| 153 | #ifdef KS_DEBUG |
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| 154 | cout << "Destructing dircoord_" << endl; |
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| 155 | #endif |
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| 156 | delete dircoord_; |
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| 157 | dircoord_ = 0; |
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| 158 | } |
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| 159 | |
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| 160 | // center (in rad) |
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| 161 | Double centX(centx), centY(centy); |
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| 162 | // cell size (in rad) |
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| 163 | Double incX(cellx), incY(celly); |
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| 164 | // epoch |
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| 165 | MDirection::Types mdt; |
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| 166 | MDirection::getType(mdt, String(epoch)); |
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| 167 | // projection |
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| 168 | Projection::Type projType(Projection::type(String(projname))); |
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| 169 | |
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| 170 | Matrix<Double> xform(2,2) ; |
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| 171 | xform = 0.0 ; |
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| 172 | xform.diagonal() = 1.0 ; |
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| 173 | dircoord_ = new DirectionCoordinate(mdt, projType, |
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| 174 | centX, centY, incX, incY, |
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| 175 | xform, |
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[2690] | 176 | 0.5*Double(nx), |
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| 177 | 0.5*Double(ny)) ; // pixel at center |
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| 178 | // 0.5*Double(nx-1), |
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| 179 | // 0.5*Double(ny-1)) ; // pixel at grid |
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[2689] | 180 | #ifdef KS_DEBUG |
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| 181 | {//Debug outputs |
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| 182 | cout << "Direction coordinate is set: " << endl; |
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| 183 | Vector<String> units = dircoord_->worldAxisUnits(); |
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| 184 | Vector<Double> refv = dircoord_->referenceValue(); |
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| 185 | cout <<"Reference: " << MDirection::showType(dircoord_->directionType()) << " " << refv[0] << units[0] << " " << refv[1] << units[1] << endl; |
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| 186 | Vector<Double> refpix = dircoord_->referencePixel(); |
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| 187 | cout <<"Reference Pixel: [" << refpix[0] << ", " << refpix[1] << "]" << endl; |
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| 188 | Vector<Double> inc = dircoord_->increment(); |
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| 189 | cout <<"Increments: [" << inc[0] << ", " << inc[1] << "]" << endl; |
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| 190 | cout <<"Projection: " << dircoord_->projection().name() << endl; |
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| 191 | } |
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| 192 | #endif |
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| 193 | }; |
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| 194 | |
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| 195 | vector<double> PlotHelper::getGridPixel(const int whichrow){ |
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| 196 | if (data_.nrow() < 1) |
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| 197 | throw AipsError("Scantable is not set. Could not get direction."); |
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| 198 | else if (whichrow > int(data_.nrow()) - 1) |
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| 199 | throw AipsError("Row index out of range."); |
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| 200 | if (!dircoord_) |
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| 201 | throw AipsError("Direction coordinate is not defined."); |
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| 202 | |
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| 203 | Vector<Double> pixel; |
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| 204 | MDirection world; |
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| 205 | vector<double> outvec; |
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| 206 | world = data_.getCP()->getDirection(whichrow); |
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| 207 | #ifdef KS_DEBUG |
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| 208 | cout << "searching pixel position (world = " << data_.getCP()->getDirectionString(whichrow) << " = [" << world.getAngle("rad").getValue()[0] << ", " << world.getAngle("rad").getValue()[1] << "])" << endl; |
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| 209 | #endif |
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| 210 | dircoord_->toPixel(pixel, world); |
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| 211 | #ifdef KS_DEBUG |
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| 212 | cout << "got pixel = [" << pixel[0] << ", " << pixel[1] << "]" << endl; |
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| 213 | #endif |
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| 214 | // convert pixel to std vector |
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| 215 | pixel.tovector(outvec); |
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| 216 | return outvec; |
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| 217 | }; |
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| 218 | |
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| 219 | } //namespace asap |
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