mpLayer Class Reference

#include <mathplot.h>

Inheritance diagram for mpLayer:
Inheritance graph
[legend]

List of all members.

Public Member Functions

 mpLayer ()
virtual bool HasBBox ()
virtual double GetMinX ()
virtual double GetMaxX ()
virtual double GetMinY ()
virtual double GetMaxY ()
virtual void Plot (wxDC &dc, mpWindow &w)=0
wxString GetName () const
const wxFont & GetFont () const
const wxPen & GetPen () const
void SetName (wxString name)
void SetFont (wxFont &font)
void SetPen (wxPen &pen)
int GetYTranslated (double sizey, double y)

Protected Attributes

wxFont m_font
 Layer's font.
wxPen m_pen
 Layer's pen.
wxString m_name
 Layer's name.

Detailed Description

Plot layer, abstract base class. Any number of mpLayer implementations can be attached to mpWindow. Examples for mpLayer implementations are function graphs, or scale rulers.

For convenience mpLayer defines a name, a font (wxFont), and a pen (wxPen) as class members. These may or may not be used by implementations.

Definition at line 98 of file mathplot.h.


Constructor & Destructor Documentation

mpLayer::mpLayer (  ) 

Definition at line 53 of file mathplot.cxx.

00054 {
00055 // EED wx 2.8.5
00056 //      SetPen( *wxBLACK_PEN);
00057 //      SetFont(*wxNORMAL_FONT);
00058 
00059         wxFont ff( *wxNORMAL_FONT);
00060         wxPen pp( *wxBLACK_PEN);
00061         SetPen( pp );
00062         SetFont( ff );
00063 
00064 }


Member Function Documentation

const wxFont& mpLayer::GetFont (  )  const [inline]

Get font set for this layer.

Returns:
Font

Definition at line 175 of file mathplot.h.

00175 { return m_font; }

virtual double mpLayer::GetMaxX (  )  [inline, virtual]

Get inclusive right border of bounding box.

Returns:
Value

Definition at line 120 of file mathplot.h.

Referenced by mpWindow::UpdateBBox().

00120 { return  1.0; }

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virtual double mpLayer::GetMaxY (  )  [inline, virtual]

Get inclusive top border of bounding box.

Returns:
Value

Definition at line 130 of file mathplot.h.

Referenced by mpWindow::UpdateBBox().

00130 { return  1.0; }

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virtual double mpLayer::GetMinX (  )  [inline, virtual]

Get inclusive left border of bounding box.

Returns:
Value

Definition at line 115 of file mathplot.h.

Referenced by mpWindow::UpdateBBox().

00115 { return -1.0; }

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virtual double mpLayer::GetMinY (  )  [inline, virtual]

Get inclusive bottom border of bounding box.

Returns:
Value

Definition at line 125 of file mathplot.h.

Referenced by mpWindow::UpdateBBox().

00125 { return -1.0; }

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wxString mpLayer::GetName (  )  const [inline]

Get layer name.

Returns:
Name

Definition at line 170 of file mathplot.h.

00170 { return m_name; }

const wxPen& mpLayer::GetPen (  )  const [inline]

Get pen set for this layer.

Returns:
Pen

Definition at line 180 of file mathplot.h.

00180 { return m_pen;  }

int mpLayer::GetYTranslated ( double  sizey,
double  y 
) [inline]

Get the translation of the Y coordinate acoording to the new orientation of the axis du to the problem identified in MACOS with the funtion 'SetAxisOrientation'

Definition at line 201 of file mathplot.h.

Referenced by pPlotterLayer::draw(), pPlotterLayer::drawFunction(), pPlotterLayer::drawPoints(), pPlotterLayer::drawSplineCurve(), pPlotterScaleY::Plot(), pPlotterScaleX::Plot(), pPlotterLayer::Plot(), and mpScaleY::Plot().

00201                                                   {
00202                 return -y+sizey;
00203         }

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virtual bool mpLayer::HasBBox (  )  [inline, virtual]

Check whether this layer has a bounding box. The default implementation returns TRUE. Overide and return FALSE if your mpLayer implementation should be ignored by the calculation of the global bounding box for all layers in a mpWindow.

Return values:
TRUE Has bounding box
FALSE Has not bounding box

Reimplemented in mpScaleX, mpScaleY, pPlotterScaleX, and pPlotterScaleY.

Definition at line 110 of file mathplot.h.

Referenced by mpWindow::UpdateBBox().

00110 { return TRUE; }

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virtual void mpLayer::Plot ( wxDC &  dc,
mpWindow w 
) [pure virtual]

Plot given view of layer to the given device context. An implementation of this function has to transform layer coordinates to wxDC coordinates based on the view parameters retrievable from the mpWindow passed in w. The passed device context dc has its coordinate origin set to the center of the visible area. The coordinate orientation is as show in the following picture:

	+--------------------------------------------------+
	|                                                  |
	|                                                  |
	|                (wxDC origin 0,0)                 |
	|                       x-------------> acending X |
	|                       |                          |
	|                       |                          |
	|                       V ascending Y              |
	+--------------------------------------------------+
	

Note that Y ascends in downward direction, whereas the usual vertical orientation for mathematical plots is vice versa. Thus Y-orientation will be swapped usually, when transforming between wxDC and mpLayer coordinates.

Rules for transformation between mpLayer and wxDC coordinates

        dc_X = (layer_X - mpWindow::GetPosX()) * mpWindow::GetScaleX()
        dc_Y = (mpWindow::GetPosY() - layer_Y) * mpWindow::GetScaleY() // swapping Y-orientation

        layer_X = (dc_X / mpWindow::GetScaleX()) + mpWindow::GetPosX() // scale guaranted to be not 0
        layer_Y = mpWindow::GetPosY() - (dc_Y / mpWindow::GetScaleY()) // swapping Y-orientation
Parameters:
dc Device context to plot to.
w View to plot. The visible area can be retrieved from this object.

Implemented in mpFX, mpFY, mpFXY, mpScaleX, pPlotterLayer, pPlotterScaleX, and pPlotterScaleY.

void mpLayer::SetFont ( wxFont &  font  )  [inline]

Set layer font

Parameters:
font Font, will be copied to internal class member

Definition at line 190 of file mathplot.h.

00190 { m_font = font; }

void mpLayer::SetName ( wxString  name  )  [inline]

Set layer name

Parameters:
name Name, will be copied to internal class member

Definition at line 185 of file mathplot.h.

00185 { m_name = name; }

void mpLayer::SetPen ( wxPen &  pen  )  [inline]

Set layer pen

Parameters:
pen Pen, will be copied to internal class member

Definition at line 195 of file mathplot.h.

Referenced by HistogramWidget::drawHistogram(), Histogram::drawHistogram(), HistogramWidget::drawTransferenceFunction(), pPlotterWindow::onChangeColor(), pPlotterWindow::onLoad(), and pPlotterWindow::onStartDrawing().

00195 { m_pen  = pen;  }

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Member Data Documentation

wxFont mpLayer::m_font [protected]
wxString mpLayer::m_name [protected]

Layer's name.

Definition at line 208 of file mathplot.h.

Referenced by mpScaleY::Plot(), mpScaleX::Plot(), mpFXY::Plot(), mpFY::Plot(), and mpFX::Plot().

wxPen mpLayer::m_pen [protected]

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

Generated on 18 Mar 2010 for creaMaracasVisu_lib by  doxygen 1.6.1