[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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