mpScaleY Class Reference

#include <mathplot.h>

Inheritance diagram for mpScaleY:
Inheritance graph
[legend]
Collaboration diagram for mpScaleY:
Collaboration graph
[legend]

List of all members.

Public Member Functions

 mpScaleY (wxString name=wxT("Y"))
virtual void Plot (wxDC &dc, mpWindow &w, int orgy)
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 implementing a y-scale ruler. The ruler is fixed at X=0 in the coordinate system. A label is plottet at the top-right hand of the ruler. The scale numbering automatically adjusts to view and zoom factor.

Definition at line 387 of file mathplot.h.

Constructor & Destructor Documentation

mpScaleY::mpScaleY ( wxString  name = wxT("Y")  ) 
Parameters:
name Label to plot by the ruler

Definition at line 312 of file mathplot.cxx.

00313 { 
00314         SetName(name);/*
00315         SetFont(*wxSMALL_FONT);
00316         SetPen(*wxGREY_PEN);*/
00317         wxFont ff( *wxSMALL_FONT);
00318         wxPen pp( *wxGREY_PEN);
00319         SetPen( pp );
00320         SetFont( ff );
00321 }

Member Function Documentation

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

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, inherited]

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; }

Here is the caller graph for this function:

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

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; }

Here is the caller graph for this function:

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

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; }

Here is the caller graph for this function:

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

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; }

Here is the caller graph for this function:

wxString mpLayer::GetName (  )  const [inline, inherited]

Get layer name.

Returns:
Name

Definition at line 170 of file mathplot.h.

00170 { return m_name; }

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

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, inherited]

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 Plot().

00201                                                   {
00202                 return -y+sizey;
00203         }

Here is the caller graph for this function:

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

Check whether this layer has a bounding box. This implementation returns FALSE thus making the ruler invisible to the plot layer bounding box calculation by mpWindow.

Reimplemented from mpLayer.

Definition at line 402 of file mathplot.h.

00402 { return FALSE; }

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

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 mpScaleY::Plot ( wxDC &  dc,
mpWindow &  w,
int  orgy 
) [virtual]

Layer plot handler. This implementation will plot the ruler adjusted to the visible area.

Definition at line 323 of file mathplot.cxx.

References mpWindow::GetPosX(), mpWindow::GetPosY(), mpWindow::GetScaleX(), mpWindow::GetScaleY(), mpWindow::GetScrY(), mpLayer::GetYTranslated(), mpLayer::m_font, mpLayer::m_name, mpLayer::m_pen, and mpLN10.

00324 {
00325         dc.SetPen( m_pen);
00326         dc.SetFont( m_font);
00327 
00328         const int orgx   = -(int)(w.GetPosX() * w.GetScaleX());
00329         const int extend = w.GetScrY()/2;
00330 
00331         double sizedc = dc.GetSize().GetHeight()-orgy;
00332 
00333         dc.DrawLine( orgx, GetYTranslated(sizedc, -extend), orgx, GetYTranslated(sizedc, extend));
00334 
00335         const double dig  = floor( log( 128.0 / w.GetScaleY() ) / mpLN10 );
00336         const double step = exp( mpLN10 * dig);
00337         const double end  = w.GetPosY() + (double)extend / w.GetScaleY();
00338 
00339         wxCoord tx, ty;
00340         wxString s;
00341         wxString fmt;
00342         int tmp = (int)dig;
00343         if (tmp>=1)
00344         {
00345                 fmt = wxT("%.f");
00346         }
00347         else
00348         {
00349                 tmp=8-tmp;
00350                 fmt.Printf(wxT("%%.%df"), tmp >= -1 ? 2 : -tmp);
00351         }
00352 
00353         double n = floor( (w.GetPosY() - (double)extend / w.GetScaleY()) / step ) * step ;
00354 
00355         tmp=65536;
00356         for (;n < end; n += step)
00357         {
00358                 const int p = (int)((w.GetPosY() - n) * w.GetScaleY());
00359                 dc.DrawLine( orgx, GetYTranslated(sizedc, p), orgx+4, GetYTranslated(sizedc,p));
00360 
00361                 s.Printf(fmt, n);
00362                 dc.GetTextExtent(s, &tx, &ty);
00363                 if ((tmp-p+ty/2) > 32)
00364                 {
00365                         dc.DrawText( s, orgx+4, GetYTranslated(sizedc,p-ty/2));
00366                         tmp=p-ty/2;
00367                 }
00368         }
00369 
00370         dc.GetTextExtent(m_name, &tx, &ty);
00371         dc.DrawText( m_name, orgx-tx-4, GetYTranslated(sizedc,-extend + ty + 4));
00372 }

Here is the call graph for this function:

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

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, inherited]

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, inherited]

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;  }

Here is the caller graph for this function:

Member Data Documentation

wxFont mpLayer::m_font [protected, inherited]

Layer's font.

Definition at line 206 of file mathplot.h.

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

wxString mpLayer::m_name [protected, inherited]

Layer's name.

Definition at line 208 of file mathplot.h.

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

wxPen mpLayer::m_pen [protected, inherited]

Layer's pen.

Definition at line 207 of file mathplot.h.

Referenced by pPlotterScaleY::Plot(), pPlotterScaleX::Plot(), pPlotterLayer::Plot(), Plot(), mpScaleX::Plot(), mpFXY::Plot(), mpFY::Plot(), and mpFX::Plot().

The documentation for this class was generated from the following files:
Generated on 18 Mar 2010 for creaMaracasVisu_lib by  doxygen 1.6.1