C++ (Cpp) myDestPointの例

コード例 #1

ファイル: qgsrasterprojector.cpp プロジェクト: rukku/Quantum-GIS

bool QgsRasterProjector::checkRows()
{
    for ( int r = 0; r < mCPRows; r++ )
    {
        for ( int c = 1; c < mCPCols - 1; c += 2 )
        {
            double myDestX, myDestY;
            destPointOnCPMatrix( r, c, &myDestX, &myDestY );

            QgsPoint myDestPoint( myDestX, myDestY );
            QgsPoint mySrcPoint1 = mCPMatrix[r][c-1];
            QgsPoint mySrcPoint2 = mCPMatrix[r][c];
            QgsPoint mySrcPoint3 = mCPMatrix[r][c+1];

            QgsPoint mySrcApprox(( mySrcPoint1.x() + mySrcPoint3.x() ) / 2, ( mySrcPoint1.y() + mySrcPoint3.y() ) / 2 );
            try
            {
                QgsPoint myDestApprox = mCoordinateTransform.transform( mySrcApprox, QgsCoordinateTransform::ReverseTransform );
                double mySqrDist = myDestApprox.sqrDist( myDestPoint );
                if ( mySqrDist > mSqrTolerance )
                {
                    return false;
                }
            }
            catch ( QgsCsException &e )
            {
                Q_UNUSED( e );
                // Caught an error in transform
                return false;
            }
        }
    }
    return true;
}

コード例 #2

ファイル: qgsrasterprojector.cpp プロジェクト: RealworldSystems/Quantum-GIS

void QgsRasterProjector::calcCP( int theRow, int theCol )
{
  double myDestX, myDestY;
  destPointOnCPMatrix( theRow, theCol, &myDestX, &myDestY );
  QgsPoint myDestPoint( myDestX, myDestY );

  mCPMatrix[theRow][theCol] = mCoordinateTransform.transform( myDestPoint );
}

コード例 #3

void QgsRasterProjector::calcCP( int theRow, int theCol )
{
  double myDestX, myDestY;
  destPointOnCPMatrix( theRow, theCol, &myDestX, &myDestY );
  QgsPoint myDestPoint( myDestX, myDestY );
  try
  {
    mCPMatrix[theRow][theCol] = mCoordinateTransform.transform( myDestPoint );
    mCPLegalMatrix[theRow][theCol] = true;
  }
  catch ( QgsCsException &e )
  {
    Q_UNUSED( e );
    // Caught an error in transform
    mCPLegalMatrix[theRow][theCol] = true;
  }
}

コード例 #4

ファイル: qgsrasterprojector.cpp プロジェクト: AlisterH/Quantum-GIS

bool ProjectorData::checkRows( const QgsCoordinateTransform &ct )
{
  if ( !ct.isValid() )
  {
    return false;
  }

  for ( int r = 0; r < mCPRows; r++ )
  {
    for ( int c = 1; c < mCPCols - 1; c += 2 )
    {
      double myDestX, myDestY;
      destPointOnCPMatrix( r, c, &myDestX, &myDestY );

      QgsPointXY myDestPoint( myDestX, myDestY );
      QgsPointXY mySrcPoint1 = mCPMatrix[r][c - 1];
      QgsPointXY mySrcPoint2 = mCPMatrix[r][c];
      QgsPointXY mySrcPoint3 = mCPMatrix[r][c + 1];

      QgsPointXY mySrcApprox( ( mySrcPoint1.x() + mySrcPoint3.x() ) / 2, ( mySrcPoint1.y() + mySrcPoint3.y() ) / 2 );
      if ( !mCPLegalMatrix[r][c - 1] || !mCPLegalMatrix[r][c] || !mCPLegalMatrix[r][c + 1] )
      {
        // There was an error earlier in transform, just abort
        return false;
      }
      try
      {
        QgsPointXY myDestApprox = ct.transform( mySrcApprox, QgsCoordinateTransform::ReverseTransform );
        double mySqrDist = myDestApprox.sqrDist( myDestPoint );
        if ( mySqrDist > mSqrTolerance )
        {
          return false;
        }
      }
      catch ( QgsCsException &e )
      {
        Q_UNUSED( e );
        // Caught an error in transform
        return false;
      }
    }
  }
  return true;
}

コード例 #5

bool QgsRasterProjector::checkCols()
{
  for ( int c = 0; c < mCPCols; c++ )
  {
    for ( int r = 1; r < mCPRows - 1; r += 2 )
    {
      double myDestX, myDestY;
      destPointOnCPMatrix( r, c, &myDestX, &myDestY );
      QgsPoint myDestPoint( myDestX, myDestY );

      QgsPoint mySrcPoint1 = mCPMatrix[r-1][c];
      QgsPoint mySrcPoint2 = mCPMatrix[r][c];
      QgsPoint mySrcPoint3 = mCPMatrix[r+1][c];

      QgsPoint mySrcApprox(( mySrcPoint1.x() + mySrcPoint3.x() ) / 2, ( mySrcPoint1.y() + mySrcPoint3.y() ) / 2 );
      if ( !mCPLegalMatrix[r-1][c] || !mCPLegalMatrix[r][c] || !mCPLegalMatrix[r+1][c] )
      {
        // There was an error earlier in transform, just abort
        return false;
      }
      try
      {
        QgsPoint myDestApprox = mCoordinateTransform.transform( mySrcApprox, QgsCoordinateTransform::ReverseTransform );
        double mySqrDist = myDestApprox.sqrDist( myDestPoint );
        if ( mySqrDist > mSqrTolerance )
        {
          return false;
        }
      }
      catch ( QgsCsException &e )
      {
        Q_UNUSED( e );
        // Caught an error in transform
        return false;
      }
    }
  }
  return true;
}

コード例 #6

ファイル: qgsrasterprojector.cpp プロジェクト: RealworldSystems/Quantum-GIS

bool QgsRasterProjector::checkCols()
{
  for ( int c = 0; c < mCPCols; c++ )
  {
    for ( int r = 1; r < mCPRows - 1; r += 2 )
    {
      double myDestX, myDestY;
      destPointOnCPMatrix( r, c, &myDestX, &myDestY );
      QgsPoint myDestPoint( myDestX, myDestY );

      QgsPoint mySrcPoint1 = mCPMatrix[r-1][c];
      QgsPoint mySrcPoint2 = mCPMatrix[r][c];
      QgsPoint mySrcPoint3 = mCPMatrix[r+1][c];

      QgsPoint mySrcApprox(( mySrcPoint1.x() + mySrcPoint3.x() ) / 2, ( mySrcPoint1.y() + mySrcPoint3.y() ) / 2 );
      QgsPoint myDestApprox = mCoordinateTransform.transform( mySrcApprox, QgsCoordinateTransform::ReverseTransform );
      double mySqrDist = myDestApprox.sqrDist( myDestPoint );
      if ( mySqrDist > mSqrTolerance )
        return false;
    }
  }
  return true;
}

コード例 #7

ファイル: qgsrasterprojector.cpp プロジェクト: AlisterH/Quantum-GIS

void ProjectorData::calcCP( int row, int col, const QgsCoordinateTransform &ct )
{
  double myDestX, myDestY;
  destPointOnCPMatrix( row, col, &myDestX, &myDestY );
  QgsPointXY myDestPoint( myDestX, myDestY );
  try
  {
    if ( ct.isValid() )
    {
      mCPMatrix[row][col] = ct.transform( myDestPoint );
      mCPLegalMatrix[row][col] = true;
    }
    else
    {
      mCPLegalMatrix[row][col] = false;
    }
  }
  catch ( QgsCsException &e )
  {
    Q_UNUSED( e );
    // Caught an error in transform
    mCPLegalMatrix[row][col] = false;
  }
}