C++ Projection::ToProjectionY方法代码示例

  /**
   * Set the output cube to specified file name and specified input images
   * and output attributes
   */
  Isis::Cube *ProcessMapMosaic::SetOutputCube(FileList &propagationCubes, CubeAttributeOutput &oAtt,
      const QString &mosaicFile) {
    int bands = 0;
    double xmin = DBL_MAX;
    double xmax = -DBL_MAX;
    double ymin = DBL_MAX;
    double ymax = -DBL_MAX;
    double slat = DBL_MAX;
    double elat = -DBL_MAX;
    double slon = DBL_MAX;
    double elon = -DBL_MAX;

    Projection *proj = NULL;

    if (propagationCubes.size() < 1) {
      QString msg = "The list does not contain any data";
      throw IException(IException::Programmer, msg, _FILEINFO_);
    }

    for (int i = 0; i < propagationCubes.size(); i++) {
      // Open the cube and get the maximum number of band in all cubes
      Cube cube;
      cube.open(propagationCubes[i].toString());
      bands = max(bands, cube.bandCount());

      // See if the cube has a projection and make sure it matches
      // previous input cubes
      Projection *projNew =
          Isis::ProjectionFactory::CreateFromCube(*(cube.label()));
      if ((proj != NULL) && (*proj != *projNew)) {
        QString msg = "Mapping groups do not match between cubes [" +
                     propagationCubes[0].toString() + "] and [" + propagationCubes[i].toString() + "]";
        throw IException(IException::User, msg, _FILEINFO_);
      }

      // Figure out the x/y range as it may be needed later
      double x = projNew->ToProjectionX(0.5);
      double y = projNew->ToProjectionY(0.5);
      if (x < xmin) xmin = x;
      if (y < ymin) ymin = y;
      if (x > xmax) xmax = x;
      if (y > ymax) ymax = y;

      x = projNew->ToProjectionX(cube.sampleCount() + 0.5);
      y = projNew->ToProjectionY(cube.lineCount() + 0.5);
      if (x < xmin) xmin = x;
      if (y < ymin) ymin = y;
      if (x > xmax) xmax = x;
      if (y > ymax) ymax = y;

      slat = min(slat, projNew->MinimumLatitude());
      elat = max(elat, projNew->MaximumLatitude());
      slon = min(slon, projNew->MinimumLongitude());
      elon = max(elon, projNew->MaximumLongitude());

      // Cleanup
      cube.close();
      if (proj) delete proj;
      proj = projNew;
    }

    if (proj) delete proj;

    return SetOutputCube(propagationCubes[0].toString(), xmin, xmax, ymin, ymax,
                         slat, elat, slon, elon, bands, oAtt, mosaicFile);
  }

  /**
   * Mosaic Processing method, returns false if the cube is not inside the mosaic
   */
  bool ProcessMapMosaic::StartProcess(QString inputFile) {
    if (InputCubes.size() != 0) {
      QString msg = "Input cubes already exist; do not call SetInputCube when using ";
      msg += "ProcessMosaic::StartProcess(QString)";
      throw IException(IException::Programmer, msg, _FILEINFO_);
    }

    if (OutputCubes.size() == 0) {
      QString msg = "An output cube must be set before calling StartProcess";
      throw IException(IException::Programmer, msg, _FILEINFO_);
    }

    CubeAttributeInput inAtt(inputFile);
    Cube *inCube = ProcessMosaic::SetInputCube(inputFile, inAtt);

    Cube *mosaicCube = OutputCubes[0];
    Projection *iproj = inCube->projection();
    Projection *oproj = mosaicCube->projection();
    int nsMosaic = mosaicCube->sampleCount();
    int nlMosaic = mosaicCube->lineCount();

    if (*iproj != *oproj) {
      QString msg = "Mapping groups do not match between cube [" + inputFile + "] and mosaic";
      throw IException(IException::User, msg, _FILEINFO_);
    }

    int outSample, outSampleEnd, outLine, outLineEnd;
    outSample = (int)(oproj->ToWorldX(iproj->ToProjectionX(1.0)) + 0.5);
    outLine   = (int)(oproj->ToWorldY(iproj->ToProjectionY(1.0)) + 0.5);

    int ins = InputCubes[0]->sampleCount();
    int inl =  InputCubes[0]->lineCount();
    outSampleEnd = outSample + ins;
    outLineEnd   = outLine + inl;

    bool wrapPossible = iproj->IsEquatorialCylindrical();
    int worldSize = 0;
    if (wrapPossible) {
      // Figure out how many samples 360 degrees is
      wrapPossible = wrapPossible && oproj->SetUniversalGround(0, 0);
      int worldStart = (int)(oproj->WorldX() + 0.5);
      wrapPossible = wrapPossible && oproj->SetUniversalGround(0, 180);
      int worldEnd = (int)(oproj->WorldX() + 0.5);

      worldSize = abs(worldEnd - worldStart) * 2;

      wrapPossible = wrapPossible && (worldSize > 0);

      // This is EquatorialCylindrical, so shift to the left all the way
      if (wrapPossible) {
        // While some data would still be put in the mosaic, move left
        //  >1 for end because 0 still means no data, whereas 1 means 1 line of data
        while (outSampleEnd - worldSize > 1) {
          outSample -= worldSize;
          outSampleEnd -= worldSize;
        }
        // Now we have the sample range to the furthest left
      }
    }

    // Check overlaps of input image along the mosaic edges before
    // calling ProcessMosaic::StartProcess
    // Left edge
    if (outSample < 1) {
      ins = ins + outSample - 1;
    }

    // Top edge
    if (outLine < 1) {
      inl = inl + outLine - 1;
    }

    // Right edge
    if ((outSample + ins - 1) > nsMosaic) {
      ins = nsMosaic - outSample + 1;
    }

    // Bottom edge
    if ((outLine + inl - 1) > nlMosaic) {
      inl = nlMosaic - outLine + 1;
    }

    if (outSampleEnd < 1 || outLineEnd < 1 || outSample > nsMosaic || outLine > nlMosaic || ins < 1 || inl < 1) {
      // Add a PvlKeyword naming which files are not included in output mosaic
      ClearInputCubes();
      return false;
    }
    else {
      // Place the input in the mosaic
      Progress()->SetText("Mosaicking " + FileName(inputFile).name());

      try {
        do {
          int outBand = 1;
          ProcessMosaic::StartProcess(outSample, outLine, outBand);

          // Increment for projections where occurrances may happen multiple times
//.........这里部分代码省略.........

/**
 * Constructs an OverlapStatistics object.  Compares the two input cubes and
 * finds where they overlap.
 *
 * @param x The first input cube
 * @param y The second input cube
 * @param progressMsg (Default value of "Gathering Overlap Statistics") Text
 *         for indicating progress during statistic gathering
 * @param sampPercent (Default value of 100.0) Sampling percent, or the percentage
 *       of lines to consider during the statistic gathering procedure
 *
 * @throws Isis::iException::User - All images must have the same number of
 *                                  bands
 */
OverlapStatistics::OverlapStatistics(Isis::Cube &x, Isis::Cube &y,
                                     std::string progressMsg, double sampPercent) {
    // Test to ensure sampling percent in bound
    if (sampPercent <= 0.0 || sampPercent > 100.0) {
        string msg = "The sampling percent must be a decimal (0.0, 100.0]";
        throw iException::Message(iException::Programmer,msg,_FILEINFO_);
    }

    p_sampPercent = sampPercent;

    // Extract filenames and band number from cubes
    p_xFile = x.Filename();
    p_yFile = y.Filename();

    // Make sure number of bands match
    if (x.Bands() != y.Bands()) {
        string msg = "Number of bands do not match between cubes [" +
                     p_xFile.Name() + "] and [" + p_yFile.Name() + "]";
        throw iException::Message(iException::User,msg,_FILEINFO_);
    }
    p_bands = x.Bands();
    p_stats.resize(p_bands);

    //Create projection from each cube
    Projection *projX = x.Projection();
    Projection *projY = y.Projection();

    // Test to make sure projection parameters match
    if (*projX != *projY) {
        string msg = "Mapping groups do not match between cubes [" +
                     p_xFile.Name() + "] and [" + p_yFile.Name() + "]";
        throw iException::Message(iException::Programmer,msg,_FILEINFO_);
    }

    // Figure out the x/y range for both images to find the overlap
    double Xmin1 = projX->ToProjectionX(0.5);
    double Ymax1 = projX->ToProjectionY(0.5);
    double Xmax1 = projX->ToProjectionX(x.Samples()+0.5);
    double Ymin1 = projX->ToProjectionY(x.Lines()+0.5);

    double Xmin2 = projY->ToProjectionX(0.5);
    double Ymax2 = projY->ToProjectionY(0.5);
    double Xmax2 = projY->ToProjectionX(y.Samples()+0.5);
    double Ymin2 = projY->ToProjectionY(y.Lines()+0.5);

    // Find overlap
    if ((Xmin1<Xmax2) && (Xmax1>Xmin2) && (Ymin1<Ymax2) && (Ymax1>Ymin2)) {
        double minX = Xmin1 > Xmin2 ? Xmin1 : Xmin2;
        double minY = Ymin1 > Ymin2 ? Ymin1 : Ymin2;
        double maxX = Xmax1 < Xmax2 ? Xmax1 : Xmax2;
        double maxY = Ymax1 < Ymax2 ? Ymax1 : Ymax2;

        // Find Sample range of the overlap
        p_minSampX = (int)(projX->ToWorldX(minX) + 0.5);
        p_maxSampX = (int)(projX->ToWorldX(maxX) + 0.5);
        p_minSampY = (int)(projY->ToWorldX(minX) + 0.5);
        p_maxSampY = (int)(projY->ToWorldX(maxX) + 0.5);
        p_sampRange = p_maxSampX - p_minSampX + 1;

        // Test to see if there was only sub-pixel overlap
        if (p_sampRange <= 0) return;

        // Find Line range of overlap
        p_minLineX = (int)(projX->ToWorldY(maxY) + 0.5);
        p_maxLineX = (int)(projX->ToWorldY(minY) + 0.5);
        p_minLineY = (int)(projY->ToWorldY(maxY) + 0.5);
        p_maxLineY = (int)(projY->ToWorldY(minY) + 0.5);
        p_lineRange = p_maxLineX - p_minLineX + 1;

        // Print percent processed
        Progress progress;
        progress.SetText(progressMsg);

        int linc = (int)(100.0 / sampPercent + 0.5); // Calculate our line increment

        // Define the maximum number of steps to be our line range divided by the
        // line increment, but if they do not divide evenly, then because of
        // rounding, we need to do an additional step for each band
        int maxSteps = (int)(p_lineRange / linc + 0.5);

        if (p_lineRange % linc != 0) maxSteps += 1;
        maxSteps *= p_bands;


        progress.SetMaximumSteps(maxSteps);
        progress.CheckStatus();
//.........这里部分代码省略.........