ProbeXmlConfigParserImpl.h

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.

Copyright (c) 2008-2014, SINTEF Department of Medical Technology
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#ifndef PROBEXMLCONFIGPARSERIMPL_H_
#define PROBEXMLCONFIGPARSERIMPL_H_

#include "cxResourceExport.h"

#include <ProbeXmlConfigParser.h>

class cxResource_EXPORT ProbeXmlConfigParserImpl : public ProbeXmlConfigParser
{
public:
        ProbeXmlConfigParserImpl(QString& pathToXml); 
        virtual ~ProbeXmlConfigParserImpl();
        virtual QString getFileName();
        virtual void removeConfig(QString scanner, QString probe, QString rtsource, QString configId);
        virtual void saveCurrentConfig(Configuration config);
        virtual QStringList getScannerList(); 
        virtual QStringList getProbeList(QString scanner); 
        virtual QStringList getRtSourceList(QString scanner, QString probe); 
        virtual QStringList getConfigIdList(QString scanner, QString probe, QString rtSource); 
        virtual Configuration getConfiguration(QString scanner, QString probe, QString rtsource, QString configId); 
protected:
        QList<QDomNode> getScannerNodes(QString scanner = "ALL"); 
        QList<QDomNode> getProbeNodes(QString scanner, QString probe = "ALL"); 
        QList<QDomNode> getRTSourceNodes(QString scanner, QString probe, QString rtSource="ALL"); 
        QList<QDomNode> getConfigNodes(QString scanner, QString probe, QString rtsource, QString config="ALL"); 
        QList<QDomNode> nodeListToListOfNodes(QDomNodeList list); 
        void addTextElement(QDomElement parent, QString element, QString text);

        cx::XmlOptionFile mFile;
};

//------------------------------------------------------------------------------
/*
http://stackoverflow.com/questions/1709283/how-can-i-sort-a-coordinate-list-for-a-rectangle-counterclockwise

I need to sort a coordinate list for a rectangle counterclockwise, and make the north-east corner the first coordinate.

solution seems pretty straightforward:

>>> import math
>>> mlat = sum(x['lat'] for x in l) / len(l)
>>> mlng = sum(x['lng'] for x in l) / len(l)
>>> def algo(x):
    return (math.atan2(x['lat'] - mlat, x['lng'] - mlng) + 2 * math.pi) % 2*math.pi

>>> l.sort(key=algo)
basically, algo normalises the input into the [0, 2pi] space and it would be naturally sorted "counter-clockwise".
*/

//------------------------------------------------------------------------------
class cxResource_EXPORT Angular_less
{
public:
  Angular_less(ProbeXmlConfigParser::ColRowPair center) : mCenter(center)
  {
  }

  bool operator()(const ProbeXmlConfigParser::ColRowPair& rhs, const ProbeXmlConfigParser::ColRowPair& lhs)
  {
    return angle(rhs) < angle(lhs);
  }

  int angle(ProbeXmlConfigParser::ColRowPair pair1)
  {
        double pi = atan(1.0)*4;
    return fmod(  ( ( atan2((double)(pair1.first - mCenter.first), (double)(pair1.second - mCenter.second)) ) + 3*pi/4) , 2*pi);
  }
  ProbeXmlConfigParser::ColRowPair mCenter;
};

#endif /* PROBEXMLCONFIGPARSERIMPL_H_ */