sciGraphics::AutomaticTicksComputer Class Reference

#include </home/scilab/compilation_chain/sci_checkOut/scilab/modules/renderer/src/cpp/subwinDrawing/AutomaticTicksComputer.hxx>

Inheritance diagram for sciGraphics::AutomaticTicksComputer:

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Public Member Functions
	AutomaticTicksComputer (DrawableSubwin *subwin)
virtual	~AutomaticTicksComputer (void)
virtual void	reinit (void)
virtual int	getNbTicks (void)
virtual void	getTicksPosition (double positions[], char *labels[], char *labelsExponents[])
virtual void	reduceTicksNumber (void)
virtual bool	needTicksDecimation (void)
virtual void	setAxisBounds (double min, double max)
virtual bool	isDisplayingLabelsExponents (void)
Protected Attributes
int	m_iNbTicks
double	m_dMinBounds
double	m_dMaxBounds

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Detailed Description

Definition at line 22 of file AutomaticTicksComputer.hxx.

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Constructor & Destructor Documentation

sciGraphics::AutomaticTicksComputer::AutomaticTicksComputer

(

DrawableSubwin *

subwin

)

Definition at line 29 of file AutomaticTicksComputer.cpp.

References m_dMinBounds, and m_iNbTicks.

  : ComputeTicksStrategy(subwin)
{
  m_dMinBounds = 0.0;
  m_dMinBounds = 0.0;
  m_iNbTicks = -1; /* ie unitialized */
}

sciGraphics::AutomaticTicksComputer::~AutomaticTicksComputer

(

void

)

[virtual]

Definition at line 37 of file AutomaticTicksComputer.cpp.

{
  
}

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Member Function Documentation

void sciGraphics::AutomaticTicksComputer::reinit

(

void

)

[virtual]

Reinitialize ticks computer data.

Implements sciGraphics::ComputeTicksStrategy.

Definition at line 42 of file AutomaticTicksComputer.cpp.

References m_iNbTicks.

{
  m_iNbTicks = -1;
}

int sciGraphics::AutomaticTicksComputer::getNbTicks

(

void

)

[virtual]

Get the number of ticks which will be computed by the strategy.

Implements sciGraphics::ComputeTicksStrategy.

Reimplemented in sciGraphics::AutoLogTicksComputer.

Definition at line 47 of file AutomaticTicksComputer.cpp.

References FALSE, m_dMaxBounds, m_dMinBounds, m_iNbTicks, TheTicks(), and ticks.

Referenced by getTicksPosition().

{

  if (m_iNbTicks < 0)
  {
    double ticks[20];
    TheTicks(&m_dMinBounds, &m_dMaxBounds, ticks, &m_iNbTicks, FALSE);
  }
  return m_iNbTicks;
}

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void sciGraphics::AutomaticTicksComputer::getTicksPosition	(	double	positions[],
		char *	labels[],
		char *	labelsExponents[]
	)			[virtual]

Fill positions parameters with the ticks abscissas, ordinate, ...

Implements sciGraphics::ComputeTicksStrategy.

Reimplemented in sciGraphics::AutoLogTicksComputer.

Definition at line 58 of file AutomaticTicksComputer.cpp.

References buffer, sciGraphics::BUFFER_LENGTH, ChoixFormatE(), getNbTicks(), i, m_dMaxBounds, m_dMinBounds, m_iNbTicks, Max, NULL, TheTicks(), and TRUE.

{
  if (m_iNbTicks < 0)
  {
    getNbTicks();
  }

  // Number of ticks has already been computed.
  TheTicks(&m_dMinBounds, &m_dMaxBounds, positions, &m_iNbTicks, TRUE);

  // now convert ticks positions in strings for labels
  // find ticks format
  char labelsFormat[5];
  int lastIndex = Max( m_iNbTicks - 1, 0 ) ;

  ChoixFormatE( labelsFormat,
                positions[0],
                positions[lastIndex],
                (positions[lastIndex] - positions[0]) / lastIndex ); /* Adding F.Leray 06.05.04 */

  char buffer[BUFFER_LENGTH];
  for (int i = 0; i < m_iNbTicks; i++)
  {
    // convert current position into a string
    sprintf(buffer, labelsFormat, positions[i]);

    // add the string to labels
    if (labels[i] != NULL) {delete[] labels[i];}

    labels[i] = new char[strlen(buffer) + 1];
    strcpy(labels[i], buffer);
  }
  


}

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void sciGraphics::AutomaticTicksComputer::reduceTicksNumber

(

void

)

[virtual]

To be called when there are too many ticks. Compute a new sequence of ticks with less ticks.

Implements sciGraphics::ComputeTicksStrategy.

Definition at line 95 of file AutomaticTicksComputer.cpp.

References m_iNbTicks.

{
  m_iNbTicks = (m_iNbTicks + 1) / 2;
}

virtual bool sciGraphics::AutomaticTicksComputer::needTicksDecimation

(

void

)

[inline, virtual]

To know if the ticks computer needs decimation.

Implements sciGraphics::ComputeTicksStrategy.

Definition at line 55 of file AutomaticTicksComputer.hxx.

{return true;}

void sciGraphics::AutomaticTicksComputer::setAxisBounds	(	double	min,
		double	max
	)			[virtual]

Set bounds between which we must compute ticks.

Definition at line 100 of file AutomaticTicksComputer.cpp.

References m_dMaxBounds, and m_dMinBounds.

Referenced by sciGraphics::TicksDrawerFactory::createXTicksDrawer(), sciGraphics::TicksDrawerFactory::createYTicksDrawer(), and sciGraphics::TicksDrawerFactory::createZTicksDrawer().

{
  m_dMinBounds = min;
  m_dMaxBounds = max;
}

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virtual bool sciGraphics::AutomaticTicksComputer::isDisplayingLabelsExponents

(

void

)

[inline, virtual]

To know if we need to get ticks exposants or not.

Implements sciGraphics::ComputeTicksStrategy.

Reimplemented in sciGraphics::AutoLogTicksComputer.

Definition at line 65 of file AutomaticTicksComputer.hxx.

{return false;}

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Field Documentation

int sciGraphics::AutomaticTicksComputer::m_iNbTicks [protected]

Current number of ticks

Definition at line 70 of file AutomaticTicksComputer.hxx.

Referenced by AutomaticTicksComputer(), getNbTicks(), sciGraphics::AutoLogTicksComputer::getNbTicks(), getTicksPosition(), sciGraphics::AutoLogTicksComputer::getTicksPosition(), reduceTicksNumber(), and reinit().

double sciGraphics::AutomaticTicksComputer::m_dMinBounds [protected]

Definition at line 72 of file AutomaticTicksComputer.hxx.

Referenced by AutomaticTicksComputer(), getNbTicks(), sciGraphics::AutoLogTicksComputer::getNbTicks(), getTicksPosition(), sciGraphics::AutoLogTicksComputer::getTicksPosition(), and setAxisBounds().

double sciGraphics::AutomaticTicksComputer::m_dMaxBounds [protected]

Definition at line 73 of file AutomaticTicksComputer.hxx.

Referenced by getNbTicks(), sciGraphics::AutoLogTicksComputer::getNbTicks(), getTicksPosition(), sciGraphics::AutoLogTicksComputer::getTicksPosition(), and setAxisBounds().

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The documentation for this class was generated from the following files:

• /home/scilab/compilation_chain/sci_checkOut/scilab/modules/renderer/src/cpp/subwinDrawing/AutomaticTicksComputer.hxx
• /home/scilab/compilation_chain/sci_checkOut/scilab/modules/renderer/src/cpp/subwinDrawing/AutomaticTicksComputer.cpp