mirror of
https://github.com/aportelli/LatAnalyze.git
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690 lines
20 KiB
C++
690 lines
20 KiB
C++
/*
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* Plot.cpp, part of LatAnalyze 3
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*
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* Copyright (C) 2013 - 2016 Antonin Portelli
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*
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* LatAnalyze 3 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* LatAnalyze 3 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LatAnalyze 3. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <LatAnalyze/Plot.hpp>
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#include <LatAnalyze/includes.hpp>
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#include <LatAnalyze/Mat.hpp>
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using namespace std;
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using namespace Latan;
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/******************************************************************************
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* Plot objects *
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******************************************************************************/
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// PlotObject access ///////////////////////////////////////////////////////////
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const string & PlotObject::getCommand(void) const
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{
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return command_;
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}
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const string & PlotObject::getHeadCommand(void) const
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{
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return headCommand_;
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}
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void PlotObject::setCommand(const string &command)
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{
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command_ = command;
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}
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void PlotObject::setHeadCommand(const string &command)
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{
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headCommand_ = command;
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}
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string PlotObject::popTmpFile(void)
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{
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string res = tmpFileName_.top();
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tmpFileName_.pop();
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return res;
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}
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void PlotObject::pushTmpFile(const std::string &fileName)
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{
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tmpFileName_.push(fileName);
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}
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// PlotObject dump a matrix to a temporary file ////////////////////////////////
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string PlotObject::dumpToTmpFile(const DMat &m)
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{
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char tmpFileName[MAX_PATH_LENGTH];
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int fd;
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FILE *tmpFile;
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for (Index j = 0; j < m.cols(); ++j)
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{
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}
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sprintf(tmpFileName, "%s/latan_plot_tmp.XXXXXX.dat", P_tmpdir);
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fd = mkstemps(tmpFileName, 4);
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if (fd == -1)
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{
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LATAN_ERROR(System, "impossible to create a temporary file from template "
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+ strFrom(tmpFileName));
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}
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tmpFile = fdopen(fd, "w");
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for (Index i = 0; i < m.rows(); ++i)
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{
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for (Index j = 0; j < m.cols(); ++j)
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{
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fprintf(tmpFile, "%e ", m(i, j));
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}
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fprintf(tmpFile, "\n");
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}
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fclose(tmpFile);
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return string(tmpFileName);
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}
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// PlotObject test /////////////////////////////////////////////////////////////
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bool PlotObject::gotTmpFile(void) const
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{
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return !tmpFileName_.empty();
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}
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// PlotCommand constructor /////////////////////////////////////////////////////
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PlotCommand::PlotCommand(const string &command)
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{
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setCommand(command);
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}
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// PlotHeadCommand constructor /////////////////////////////////////////////////
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PlotHeadCommand::PlotHeadCommand(const string &command)
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{
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setHeadCommand(command);
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}
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// PlotData constructor ////////////////////////////////////////////////////////
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PlotData::PlotData(const DMatSample &x, const DMatSample &y)
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{
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if (x[central].rows() != y[central].rows())
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{
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LATAN_ERROR(Size, "x and y vector does not have the same size");
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}
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DMat d(x[central].rows(), 4);
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string usingCmd, tmpFileName;
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d.col(0) = x[central];
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d.col(2) = y[central];
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d.col(1) = x.variance().cwiseSqrt();
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d.col(3) = y.variance().cwiseSqrt();
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tmpFileName = dumpToTmpFile(d);
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pushTmpFile(tmpFileName);
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setCommand("'" + tmpFileName + "' u 1:3:2:4 w xyerr");
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}
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PlotData::PlotData(const DVec &x, const DMatSample &y)
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{
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if (x.rows() != y[central].rows())
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{
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LATAN_ERROR(Size, "x and y vector does not have the same size");
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}
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DMat d(x.rows(), 3);
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string usingCmd, tmpFileName;
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d.col(0) = x;
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d.col(1) = y[central];
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d.col(2) = y.variance().cwiseSqrt();
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tmpFileName = dumpToTmpFile(d);
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pushTmpFile(tmpFileName);
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setCommand("'" + tmpFileName + "' u 1:2:3 w yerr");
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}
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PlotData::PlotData(const DMatSample &x, const DVec &y)
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{
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if (x[central].rows() != y.rows())
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{
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LATAN_ERROR(Size, "x and y vector does not have the same size");
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}
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DMat d(x[central].rows(), 3), xerr, yerr;
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string usingCmd, tmpFileName;
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d.col(0) = x[central];
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d.col(2) = y;
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d.col(1) = x.variance().cwiseSqrt();
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tmpFileName = dumpToTmpFile(d);
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pushTmpFile(tmpFileName);
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setCommand("'" + tmpFileName + "' u 1:3:2 w xerr");
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}
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PlotData::PlotData(const XYStatData &data, const Index i, const Index j)
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{
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string usingCmd, tmpFileName;
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usingCmd = (data.isXExact(i)) ? "u 1:3:4 w yerr" : "u 1:3:2:4 w xyerr";
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tmpFileName = dumpToTmpFile(data.getTable(i, j));
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pushTmpFile(tmpFileName);
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setCommand("'" + tmpFileName + "' " + usingCmd);
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}
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// PlotHLine constructor ///////////////////////////////////////////////////////
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PlotHLine::PlotHLine(const double y)
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{
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setCommand(strFrom(y));
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}
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// PlotHBand constructor ///////////////////////////////////////////////////////
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PlotBand::PlotBand(const double xMin, const double xMax, const double yMin,
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const double yMax, const double opacity)
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{
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setCommand("'< printf \"%e %e\\n%e %e\\n%e %e\\n%e %e\\n%e %e\\n\" "
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+ strFrom(xMin) + " " + strFrom(yMin) + " "
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+ strFrom(xMax) + " " + strFrom(yMin) + " "
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+ strFrom(xMax) + " " + strFrom(yMax) + " "
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+ strFrom(xMin) + " " + strFrom(yMax) + " "
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+ strFrom(xMin) + " " + strFrom(yMin)
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+ "' u 1:2 w filledcurves closed fs solid " + strFrom(opacity)
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+ " noborder");
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}
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// PlotFunction constructor ////////////////////////////////////////////////////
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PlotFunction::PlotFunction(const DoubleFunction &function, const double xMin,
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const double xMax, const unsigned int nPoint)
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{
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DMat d(nPoint, 2);
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string tmpFileName;
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double dx = (xMax - xMin)/static_cast<double>(nPoint - 1);
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for (Index i = 0; i < nPoint; ++i)
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{
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d(i, 0) = xMin + i*dx;
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d(i, 1) = function(d(i, 0));
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}
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tmpFileName = dumpToTmpFile(d);
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pushTmpFile(tmpFileName);
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setCommand("'" + tmpFileName + "' u 1:2 w lines");
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}
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// PlotPredBand constructor ////////////////////////////////////////////////////
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PlotPredBand::PlotPredBand(const DoubleFunctionSample &function,
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const double xMin, const double xMax,
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const unsigned int nPoint, const double opacity)
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{
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DMat dLow(nPoint, 2), dHigh(nPoint, 2);
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DSample pred(function.size());
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double dx = (xMax - xMin)/static_cast<double>(nPoint - 1);
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string lowFileName, highFileName;
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for (Index i = 0; i < nPoint; ++i)
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{
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double x = xMin + i*dx, err;
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pred = function(x);
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err = sqrt(pred.variance());
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dLow(i, 0) = x;
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dLow(i, 1) = pred[central] - err;
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dHigh(i, 0) = x;
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dHigh(i, 1) = pred[central] + err;
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}
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lowFileName = dumpToTmpFile(dLow);
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highFileName = dumpToTmpFile(dHigh);
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pushTmpFile(lowFileName);
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pushTmpFile(highFileName);
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setCommand("'< (cat " + lowFileName + "; tac " + highFileName +
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"; head -n1 " + lowFileName + ")' u 1:2 w filledcurves closed" +
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" fs solid " + strFrom(opacity) + " noborder");
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}
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// PlotHistogram constructor ///////////////////////////////////////////////////
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PlotHistogram::PlotHistogram(const Histogram &h)
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{
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DMat d(h.size(), 2);
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string tmpFileName;
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for (Index i = 0; i < h.size(); ++i)
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{
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d(i, 0) = h.getX(i);
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d(i, 1) = h[i];
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}
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tmpFileName = dumpToTmpFile(d);
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pushTmpFile(tmpFileName);
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setCommand("'" + tmpFileName + "' u 1:2 w steps");
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}
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// PlotMatrixNoRange constructor ///////////////////////////////////////////////
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PlotMatrixNoRange::PlotMatrixNoRange(const DMat &m)
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{
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string tmpFileName = dumpToTmpFile(m);
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setCommand("'" + tmpFileName + "' matrix w image");
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}
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/******************************************************************************
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* Plot modifiers *
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******************************************************************************/
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// Caption constructor /////////////////////////////////////////////////////////
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Caption::Caption(const string &caption)
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: caption_(caption)
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{}
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// Caption modifier ////////////////////////////////////////////////////////////
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void Caption::operator()(PlotOptions &option) const
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{
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option.caption = caption_;
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}
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// Label constructor ///////////////////////////////////////////////////////////
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Label::Label(const string &label, const Axis axis)
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: label_(label)
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, axis_(axis)
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{}
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// Label modifier //////////////////////////////////////////////////////////////
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void Label::operator()(PlotOptions &option) const
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{
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option.label[static_cast<int>(axis_)] = label_;
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}
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// Color constructor ///////////////////////////////////////////////////////////
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Color::Color(const string &color)
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: color_(color)
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{}
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// Color modifier //////////////////////////////////////////////////////////////
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void Color::operator()(PlotOptions &option) const
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{
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option.lineColor = color_;
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}
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// LogScale constructor ////////////////////////////////////////////////////////
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LogScale::LogScale(const Axis axis)
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: axis_(axis)
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{}
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// Logscale modifier ///////////////////////////////////////////////////////////
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void LogScale::operator()(PlotOptions &option) const
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{
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option.scaleMode[static_cast<int>(axis_)] |= Plot::Scale::log;
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}
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// PlotRange constructors //////////////////////////////////////////////////////
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PlotRange::PlotRange(const Axis axis)
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: axis_(axis)
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, reset_(true)
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, min_(0.)
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, max_(0.)
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{}
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PlotRange::PlotRange(const Axis axis, const double min, const double max)
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: axis_(axis)
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, reset_(false)
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, min_(min)
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, max_(max)
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{}
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// PlotRange modifier ///////////////////////////////////////////////////////////
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void PlotRange::operator()(PlotOptions &option) const
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{
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int a = static_cast<int>(axis_);
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if (!reset_)
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{
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option.scaleMode[a] |= Plot::Scale::manual;
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option.scale[a].min = min_;
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option.scale[a].max = max_;
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}
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else
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{
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option.scaleMode[a] = Plot::Scale::reset;
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}
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}
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// Terminal constructor ////////////////////////////////////////////////////////
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Terminal::Terminal(const string &terminal, const std::string &options)
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: terminalCmd_(terminal + " " + options)
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{}
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// Terminal modifier ///////////////////////////////////////////////////////////
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void Terminal::operator()(PlotOptions &option) const
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{
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option.terminal = terminalCmd_;
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}
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// Title constructor ///////////////////////////////////////////////////////////
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Title::Title(const string &title)
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: title_(title)
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{}
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// Title modifier //////////////////////////////////////////////////////////////
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void Title::operator()(PlotOptions &option) const
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{
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option.title = title_;
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}
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/******************************************************************************
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* Plot implementation *
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******************************************************************************/
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// constructor /////////////////////////////////////////////////////////////////
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Plot::Plot(void)
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{
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initOptions();
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}
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// default options /////////////////////////////////////////////////////////////
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void Plot::initOptions(void)
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{
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options_.terminal = "qt";
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options_.output = "";
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options_.caption = "";
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options_.title = "";
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options_.scaleMode[0] = Plot::Scale::reset;
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options_.scaleMode[1] = Plot::Scale::reset;
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options_.scale[0] = {0.0, 0.0};
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options_.scale[1] = {0.0, 0.0};
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options_.label[0] = "";
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options_.label[1] = "";
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options_.lineColor = "";
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}
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// plot reset //////////////////////////////////////////////////////////////////
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void Plot::reset(void)
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{
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headCommand_.clear();
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plotCommand_.clear();
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tmpFileName_.clear();
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initOptions();
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}
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// plot objects ////////////////////////////////////////////////////////////////
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Plot & Plot::operator<<(PlotObject &&command)
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{
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string commandStr;
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while (command.gotTmpFile())
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{
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tmpFileName_.push_back(command.popTmpFile());
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commandStr += "'" + tmpFileName_.back() + "' ";
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}
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commandStr = command.getCommand();
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if (!commandStr.empty())
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{
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if (!options_.lineColor.empty())
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{
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commandStr += " lc " + options_.lineColor;
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options_.lineColor = "";
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}
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if (options_.title.empty())
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{
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commandStr += " notitle";
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}
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else
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{
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commandStr += " t '" + options_.title + "'";
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options_.title = "";
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}
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plotCommand_.push_back(commandStr);
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}
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if (!command.getHeadCommand().empty())
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{
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headCommand_.push_back(command.getHeadCommand());
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}
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return *this;
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}
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Plot & Plot::operator<<(PlotModifier &&modifier)
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{
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modifier(options_);
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return *this;
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}
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// find gnuplot ////////////////////////////////////////////////////////////////
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void Plot::getProgramPath(void)
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{
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int i, j, lg;
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char *path;
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static char buf[MAX_PATH_LENGTH];
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// trivial case: try in CWD
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sprintf(buf,"./%s", gnuplotBin_.c_str()) ;
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if (access(buf, X_OK) == 0)
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{
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sprintf(buf,".");
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gnuplotPath_ = buf;
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}
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// try out in all paths given in the PATH variable
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else
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{
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buf[0] = 0;
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path = getenv("PATH") ;
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if (path)
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{
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for (i=0;path[i];)
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{
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for (j=i;(path[j]) and (path[j]!=':');j++);
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lg = j - i;
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strncpy(buf,path + i,(size_t)(lg));
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if (lg == 0)
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{
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buf[lg++] = '.';
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}
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buf[lg++] = '/';
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strcpy(buf + lg, gnuplotBin_.c_str());
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if (access(buf, X_OK) == 0)
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{
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// found it!
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break ;
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}
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buf[0] = 0;
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i = j;
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if (path[i] == ':') i++ ;
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}
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}
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else
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{
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LATAN_ERROR(System, "PATH variable not set");
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}
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// if the buffer is still empty, the command was not found
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if (buf[0] == 0)
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{
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LATAN_ERROR(System, "cannot find gnuplot in $PATH");
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}
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// otherwise truncate the command name to yield path only
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lg = (int)(strlen(buf) - 1);
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while (buf[lg]!='/')
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{
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buf[lg] = 0;
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lg--;
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}
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buf[lg] = 0;
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gnuplotPath_ = buf;
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}
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}
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// plot parsing and output /////////////////////////////////////////////////////
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void Plot::display(void)
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{
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int pid = fork();
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if (pid == 0)
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{
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FILE *gnuplotPipe;
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string command;
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ostringstream scriptBuf;
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if (!getenv("DISPLAY"))
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{
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LATAN_ERROR(System, "cannot find DISPLAY variable: is it set ?");
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}
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getProgramPath();
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command = gnuplotPath_ + "/" + gnuplotBin_;
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gnuplotPipe = popen(command.c_str(), "w");
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if (!gnuplotPipe)
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{
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LATAN_ERROR(System, "error starting gnuplot (command was '"
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+ command + "')");
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}
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commandBuffer_.str("");
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commandBuffer_ << *this << endl;
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commandBuffer_ << "pause mouse close" << endl;
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fprintf(gnuplotPipe, "%s", commandBuffer_.str().c_str());
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if (pclose(gnuplotPipe) == -1)
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{
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LATAN_ERROR(System, "problem closing communication to gnuplot");
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}
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exit(EXIT_SUCCESS);
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}
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else if (pid == -1)
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{
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perror("fork error");
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LATAN_ERROR(System, "problem forking to the process handling gnuplot");
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}
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}
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void Plot::save(string dirName)
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{
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vector<string> commandBack;
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string path, terminalBack, outputBack, gpCommand, scriptName;
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mode_t mode755;
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ofstream script;
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|
|
mode755 = S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH;
|
|
|
|
// backup I/O parameters
|
|
terminalBack = options_.terminal;
|
|
outputBack = options_.output;
|
|
commandBack = plotCommand_;
|
|
|
|
// generate directory
|
|
if (mkdir(dirName))
|
|
{
|
|
LATAN_ERROR(Io, "impossible to create directory '" + dirName + "'");
|
|
}
|
|
|
|
// save PDF
|
|
options_.terminal = "pdf";
|
|
options_.output = dirName + "/plot.pdf";
|
|
display();
|
|
options_.terminal = terminalBack;
|
|
options_.output = outputBack;
|
|
|
|
// save script and datafiles
|
|
for (unsigned int i = 0; i < tmpFileName_.size(); ++i)
|
|
{
|
|
ofstream dataFile;
|
|
ifstream tmpFile;
|
|
string dataFileName = "points_" + strFrom(i) + ".dat";
|
|
|
|
dataFile.open(dirName + "/" + dataFileName);
|
|
tmpFile.open(tmpFileName_[i]);
|
|
dataFile << tmpFile.rdbuf();
|
|
dataFile.close();
|
|
tmpFile.close();
|
|
for (string &command: plotCommand_)
|
|
{
|
|
auto pos = command.find(tmpFileName_[i]);
|
|
|
|
while (pos != string::npos)
|
|
{
|
|
command.replace(pos, tmpFileName_[i].size(), dataFileName);
|
|
pos = command.find(tmpFileName_[i], pos + 1);
|
|
}
|
|
}
|
|
}
|
|
scriptName = dirName + "/source.plt";
|
|
script.open(scriptName);
|
|
getProgramPath();
|
|
gpCommand = gnuplotPath_ + "/" + gnuplotBin_ + " " + gnuplotArgs_;
|
|
script << "#!/usr/bin/env " << gpCommand << "\n" << endl;
|
|
script << "# script generated by " << Env::fullName << "\n" << endl;
|
|
script << *this;
|
|
script.close();
|
|
if (chmod(scriptName.c_str(), mode755))
|
|
{
|
|
LATAN_ERROR(Io, "impossible to set file '" + scriptName +
|
|
"' in mode 755");
|
|
}
|
|
plotCommand_ = commandBack;
|
|
}
|
|
|
|
ostream & Latan::operator<<(ostream &out, const Plot &plot)
|
|
{
|
|
std::string begin, end;
|
|
int x = static_cast<int>(Axis::x), y = static_cast<int>(Axis::y);
|
|
|
|
if (!plot.options_.terminal.empty())
|
|
{
|
|
out << "set term " << plot.options_.terminal << endl;
|
|
}
|
|
if (!plot.options_.output.empty())
|
|
{
|
|
out << "set output '" << plot.options_.output << "'" << endl;
|
|
}
|
|
if (!plot.options_.caption.empty())
|
|
{
|
|
out << "set title '" << plot.options_.caption << "'" << endl;
|
|
}
|
|
if (plot.options_.scaleMode[x] & Plot::Scale::manual)
|
|
{
|
|
out << "xMin = " << plot.options_.scale[x].min << endl;
|
|
out << "xMax = " << plot.options_.scale[x].max << endl;
|
|
}
|
|
if (plot.options_.scaleMode[y] & Plot::Scale::manual)
|
|
{
|
|
out << "yMin = " << plot.options_.scale[y].min << endl;
|
|
out << "yMax = " << plot.options_.scale[y].max << endl;
|
|
}
|
|
if (!plot.options_.title.empty())
|
|
{
|
|
out << "set title '" << plot.options_.title << "'" << endl;
|
|
}
|
|
if (plot.options_.scaleMode[x] & Plot::Scale::manual)
|
|
{
|
|
out << "set xrange [xMin:xMax]" << endl;
|
|
}
|
|
if (plot.options_.scaleMode[y] & Plot::Scale::manual)
|
|
{
|
|
out << "set yrange [yMin:yMax]" << endl;
|
|
}
|
|
if (plot.options_.scaleMode[x] & Plot::Scale::log)
|
|
{
|
|
out << "set log x" << endl;
|
|
}
|
|
if (plot.options_.scaleMode[y] & Plot::Scale::log)
|
|
{
|
|
out << "set log y" << endl;
|
|
}
|
|
if (!plot.options_.label[x].empty())
|
|
{
|
|
out << "set xlabel '" << plot.options_.label[x] << "'" << endl;
|
|
}
|
|
if (!plot.options_.label[y].empty())
|
|
{
|
|
out << "set ylabel '" << plot.options_.label[y] << "'" << endl;
|
|
}
|
|
for (unsigned int i = 0; i < plot.headCommand_.size(); ++i)
|
|
{
|
|
out << plot.headCommand_[i] << endl;
|
|
}
|
|
for (unsigned int i = 0; i < plot.plotCommand_.size(); ++i)
|
|
{
|
|
begin = (i == 0) ? "plot " : " ";
|
|
end = (i == plot.plotCommand_.size() - 1) ? "" : ",\\";
|
|
out << begin << plot.plotCommand_[i] << end << endl;
|
|
}
|
|
|
|
return out;
|
|
}
|