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mpFXYVector Class Reference

Detailed Description

A class providing graphs functionality for a 2D plot (either continuous or a set of points), from vectors of data.

This class can be used directly, the user does not need to derive any new class. Simply pass the data as two vectors with the same length containing the X and Y coordinates to the method SetData.

To generate a graph with a set of points, call

     layerVar->SetContinuity(false)

or

     layerVar->SetContinuity(true)

to render the sequence of coordinates as a continuous line.

(Added: Jose Luis Blanco, AGO-2007)

#include <mrpt/otherlibs/mathplot/mathplot.h>

Inheritance diagram for mpFXYVector:
Inheritance graph
[legend]

List of all members.

Public Member Functions

 mpFXYVector (wxString name=wxEmptyString, int flags=mpALIGN_NE)
void SetData (const std::vector< double > &xs, const std::vector< double > &ys)
 Changes the internal data: the set of points to draw.
void SetData (const std::vector< float > &xs, const std::vector< float > &ys)
 Changes the internal data: the set of points to draw.
void Clear ()
 Clears all the data, leaving the layer empty.
size_t GetDataLength () const
 Returns the number of data points currently hold in X & Y.
void AppendDataPoint (float x, float y)
 Append a new data point (x,y)
double GetMinX ()
 Returns the actual minimum X data (loaded in SetData).
double GetMinY ()
 Returns the actual minimum Y data (loaded in SetData).
double GetMaxX ()
 Returns the actual maximum X data (loaded in SetData).
double GetMaxY ()
 Returns the actual maximum Y data (loaded in SetData).
virtual void Plot (wxDC &dc, mpWindow &w)
 Layer plot handler.
virtual bool HasBBox ()
 Check whether this layer has a bounding box.
virtual bool IsInfo ()
 Check whether the layer is an info box.
wxString GetName () const
 Get layer name.
const wxFont & GetFont () const
 Get font set for this layer.
const wxPen & GetPen () const
 Get pen set for this layer.
void SetContinuity (bool continuity)
 Set the 'continuity' property of the layer (true:draws a continuous line, false:draws separate points).
bool GetContinuity () const
 Gets the 'continuity' property of the layer.
void ShowName (bool show)
 Shows or hides the text label with the name of the layer (default is visible).
void SetName (wxString name)
 Set layer name.
void SetFont (wxFont &font)
 Set layer font.
void SetPen (wxPen pen)
 Set layer pen.
void SetDrawOutsideMargins (bool drawModeOutside)
 Set Draw mode: inside or outside margins.
bool GetDrawOutsideMargins ()
 Get Draw mode: inside or outside margins.
wxBitmap GetColourSquare (int side=16)
 Get a small square bitmap filled with the colour of the pen used in the layer.
mpLayerType GetLayerType ()
 Get layer type: a Layer can be of different types: plot lines, axis, info boxes, etc, this method returns the right value.
bool IsVisible ()
 Checks whether the layer is visible or not.
void SetVisible (bool show)
 Sets layer visibility.
const wxBrush & GetBrush () const
 Get brush set for this layer.
void SetBrush (wxBrush brush)
 Set layer brush.

Protected Member Functions

void Rewind ()
 Rewind value enumeration with mpFXY::GetNextXY.
bool GetNextXY (double &x, double &y)
 Get locus value for next N.
void UpdateViewBoundary (wxCoord xnew, wxCoord ynew)
 Update label positioning data.

Protected Attributes

std::vector< double > m_xs
 The internal copy of the set of data to draw.
std::vector< double > m_ys
size_t m_index
 The internal counter for the "GetNextXY" interface.
double m_minX
 Loaded at SetData.
double m_maxX
double m_minY
double m_maxY
int m_flags
 Holds label alignment.
wxCoord maxDrawX
wxCoord minDrawX
wxCoord maxDrawY
wxCoord minDrawY
wxFont m_font
 Layer's font.
wxPen m_pen
 Layer's pen.
wxBrush m_brush
 Layer's brush.
wxString m_name
 Layer's name.
bool m_continuous
 Specify if the layer will be plotted as a continuous line or a set of points.
bool m_showName
 States whether the name of the layer must be shown (default is true).
bool m_drawOutsideMargins
 select if the layer should draw only inside margins or over all DC
mpLayerType m_type
 Define layer type, which is assigned by constructor.
bool m_visible
 Toggles layer visibility.

Constructor & Destructor Documentation

mpFXYVector::mpFXYVector ( wxString  name = wxEmptyString,
int  flags = mpALIGN_NE 
)
Parameters:
nameLabel
flagsLabel alignment, pass one of mpALIGN_NE, mpALIGN_NW, mpALIGN_SW, mpALIGN_SE.

Member Function Documentation

void mpFXYVector::AppendDataPoint ( float  x,
float  y 
)

Append a new data point (x,y)

See also:
SetData
void mpFXYVector::Clear ( )

Clears all the data, leaving the layer empty.

See also:
SetData
const wxBrush& mpLayer::GetBrush ( ) const [inline, inherited]

Get brush set for this layer.

Returns:
brush.

Definition at line 314 of file mathplot.h.

wxBitmap mpLayer::GetColourSquare ( int  side = 16) [inherited]

Get a small square bitmap filled with the colour of the pen used in the layer.

Useful to create legends or similar reference to the layers.

Parameters:
sideside length in pixels
Returns:
a wxBitmap filled with layer's colour
bool mpLayer::GetContinuity ( ) const [inline, inherited]

Gets the 'continuity' property of the layer.

See also:
SetContinuity

Definition at line 266 of file mathplot.h.

size_t mpFXYVector::GetDataLength ( ) const [inline]

Returns the number of data points currently hold in X & Y.

See also:
SetData

Definition at line 1309 of file mathplot.h.

bool mpLayer::GetDrawOutsideMargins ( ) [inline, inherited]

Get Draw mode: inside or outside margins.

Returns:
The draw mode

Definition at line 293 of file mathplot.h.

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

Get font set for this layer.

Returns:
Font

Definition at line 251 of file mathplot.h.

mpLayerType mpLayer::GetLayerType ( ) [inline, inherited]

Get layer type: a Layer can be of different types: plot lines, axis, info boxes, etc, this method returns the right value.

Returns:
An integer indicating layer type

Definition at line 302 of file mathplot.h.

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

Returns the actual maximum X data (loaded in SetData).

Reimplemented from mpLayer.

Definition at line 1355 of file mathplot.h.

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

Returns the actual maximum Y data (loaded in SetData).

Reimplemented from mpLayer.

Definition at line 1359 of file mathplot.h.

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

Returns the actual minimum X data (loaded in SetData).

Reimplemented from mpLayer.

Definition at line 1347 of file mathplot.h.

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

Returns the actual minimum Y data (loaded in SetData).

Reimplemented from mpLayer.

Definition at line 1351 of file mathplot.h.

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

Get layer name.

Returns:
Name

Definition at line 246 of file mathplot.h.

bool mpFXYVector::GetNextXY ( double &  x,
double &  y 
) [protected, virtual]

Get locus value for next N.

Overridden in this implementation.

Parameters:
xReturns X value
yReturns Y value

Implements mpFXY.

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

Get pen set for this layer.

Returns:
Pen

Definition at line 256 of file mathplot.h.

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

Check whether this layer has a bounding box.

The default implementation returns TRUE. Override 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:
TRUEHas bounding box
FALSEHas not bounding box

Reimplemented in mpBitmapLayer, mpMovableObject, mpText, mpScaleY, mpScaleX, and mpInfoLayer.

Definition at line 170 of file mathplot.h.

virtual bool mpLayer::IsInfo ( ) [inline, virtual, inherited]

Check whether the layer is an info box.

The default implementation returns FALSE. It is overrided to TRUE for mpInfoLayer class and its derivative. It is necessary to define mouse actions behaviour over info boxes.

Returns:
whether the layer is an info boxes
See also:
mpInfoLayer::IsInfo

Reimplemented in mpInfoLayer.

Definition at line 178 of file mathplot.h.

bool mpLayer::IsVisible ( ) [inline, inherited]

Checks whether the layer is visible or not.

Returns:
true if visible

Definition at line 306 of file mathplot.h.

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

Layer plot handler.

This implementation will plot the locus in the visible area and put a label according to the alignment specified.

Implements mpLayer.

void mpFXYVector::Rewind ( ) [protected, virtual]

Rewind value enumeration with mpFXY::GetNextXY.

Overridden in this implementation.

Implements mpFXY.

void mpLayer::SetBrush ( wxBrush  brush) [inline, inherited]

Set layer brush.

Parameters:
brushbrush, will be copied to internal class member

Definition at line 318 of file mathplot.h.

void mpLayer::SetContinuity ( bool  continuity) [inline, inherited]

Set the 'continuity' property of the layer (true:draws a continuous line, false:draws separate points).

See also:
GetContinuity

Definition at line 261 of file mathplot.h.

void mpFXYVector::SetData ( const std::vector< double > &  xs,
const std::vector< double > &  ys 
)

Changes the internal data: the set of points to draw.

Both vectors MUST be of the same length. This method DOES NOT refresh the mpWindow; do it manually.

See also:
Clear
void mpFXYVector::SetData ( const std::vector< float > &  xs,
const std::vector< float > &  ys 
)

Changes the internal data: the set of points to draw.

Both vectors MUST be of the same length. This method DOES NOT refresh the mpWindow; do it manually.

See also:
Clear
void mpLayer::SetDrawOutsideMargins ( bool  drawModeOutside) [inline, inherited]

Set Draw mode: inside or outside margins.

Default is outside, which allows the layer to draw up to the mpWindow border.

Parameters:
drawModeOutsideThe draw mode to be set

Definition at line 289 of file mathplot.h.

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

Set layer font.

Parameters:
fontFont, will be copied to internal class member

Definition at line 280 of file mathplot.h.

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

Set layer name.

Parameters:
nameName, will be copied to internal class member

Definition at line 275 of file mathplot.h.

void mpLayer::SetPen ( wxPen  pen) [inline, inherited]

Set layer pen.

Parameters:
penPen, will be copied to internal class member

Definition at line 285 of file mathplot.h.

void mpLayer::SetVisible ( bool  show) [inline, inherited]

Sets layer visibility.

Parameters:
showvisibility bool.

Definition at line 310 of file mathplot.h.

void mpLayer::ShowName ( bool  show) [inline, inherited]

Shows or hides the text label with the name of the layer (default is visible).

Definition at line 270 of file mathplot.h.

void mpFXY::UpdateViewBoundary ( wxCoord  xnew,
wxCoord  ynew 
) [protected, inherited]

Update label positioning data.

Parameters:
xnewNew x coordinate
ynewNew y coordinate

Member Data Documentation

wxBrush mpLayer::m_brush [protected, inherited]

Layer's brush.

Reimplemented in mpInfoLayer.

Definition at line 323 of file mathplot.h.

bool mpLayer::m_continuous [protected, inherited]

Specify if the layer will be plotted as a continuous line or a set of points.

Definition at line 325 of file mathplot.h.

bool mpLayer::m_drawOutsideMargins [protected, inherited]

select if the layer should draw only inside margins or over all DC

Definition at line 327 of file mathplot.h.

int mpFXYVector::m_flags [protected]

Holds label alignment.

Reimplemented from mpFXY.

Definition at line 1362 of file mathplot.h.

wxFont mpLayer::m_font [protected, inherited]

Layer's font.

Definition at line 318 of file mathplot.h.

size_t mpFXYVector::m_index [protected]

The internal counter for the "GetNextXY" interface.

Definition at line 1326 of file mathplot.h.

double mpFXYVector::m_maxX [protected]

Definition at line 1330 of file mathplot.h.

double mpFXYVector::m_maxY [protected]

Definition at line 1330 of file mathplot.h.

double mpFXYVector::m_minX [protected]

Loaded at SetData.

Definition at line 1330 of file mathplot.h.

double mpFXYVector::m_minY [protected]

Definition at line 1330 of file mathplot.h.

wxString mpLayer::m_name [protected, inherited]

Layer's name.

Definition at line 324 of file mathplot.h.

wxPen mpLayer::m_pen [protected, inherited]

Layer's pen.

Definition at line 322 of file mathplot.h.

bool mpLayer::m_showName [protected, inherited]

States whether the name of the layer must be shown (default is true).

Definition at line 326 of file mathplot.h.

mpLayerType mpLayer::m_type [protected, inherited]

Define layer type, which is assigned by constructor.

Definition at line 328 of file mathplot.h.

bool mpLayer::m_visible [protected, inherited]

Toggles layer visibility.

Definition at line 329 of file mathplot.h.

std::vector<double> mpFXYVector::m_xs [protected]

The internal copy of the set of data to draw.

Definition at line 1322 of file mathplot.h.

std::vector<double> mpFXYVector::m_ys [protected]

Definition at line 1322 of file mathplot.h.

wxCoord mpFXY::maxDrawX [protected, inherited]

Definition at line 627 of file mathplot.h.

wxCoord mpFXY::maxDrawY [protected, inherited]

Definition at line 627 of file mathplot.h.

wxCoord mpFXY::minDrawX [protected, inherited]

Definition at line 627 of file mathplot.h.

wxCoord mpFXY::minDrawY [protected, inherited]

Definition at line 627 of file mathplot.h.




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