IRIX Base Documentation 2002 November/SGI IRIX Base Documentation 2002 November.iso/usr/share/catman/p_man/cat3/il/ilVkHistGraph.z/ilVkHistGraph

Text File | 2002-10-03 | 12.2 KB | 331 lines

iiiillllVVVVkkkkHHHHiiiissssttttGGGGrrrraaaapppphhhh((((3333))))   IIIImmmmaaaaggggeeeeVVVViiiissssiiiioooonnnn LLLLiiiibbbbrrrraaaarrrryyyy CCCC++++++++ RRRReeeeffffeeeerrrreeeennnncccceeee MMMMaaaannnnuuuuaaaallll   iiiillllVVVVkkkkHHHHiiiissssttttGGGGrrrraaaapppphhhh((((3333))))



NNNNAAAAMMMMEEEE
     iiiillllVVVVkkkkHHHHiiiissssttttGGGGrrrraaaapppphhhh - displays graph of histogram for an image


IIIINNNNHHHHEEEERRRRIIIITTTTSSSS FFFFRRRROOOOMMMM
     ilVkComponent


HHHHEEEEAAAADDDDEEEERRRR FFFFIIIILLLLEEEE
     #include <il/ilVkHistGraph.h>


CCCCLLLLAAAASSSSSSSS DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
     This component displays a graph of the histogram of the current image.
     The current image is specified with sssseeeettttIIIImmmmaaaaggggeeee(). One channel at a time is
     displayed. The graph color and title can be set.  It uses iiiillllIIIImmmmggggSSSSttttaaaatttt to
     compute the histogram.

CCCCLLLLAAAASSSSSSSS MMMMEEEEMMMMBBBBEEEERRRR FFFFUUUUNNNNCCCCTTTTIIIIOOOONNNN SSSSUUUUMMMMMMMMAAAARRRRYYYY
     CCCCoooonnnnssssttttrrrruuuuccccttttoooorrrr

          ilVkHistGraph( const char *, Widget )
          ilVkHistGraph( const char * )

     GGGGeeeetttt////sssseeeetttt mmmmeeeetttthhhhooooddddssss

          void autoScale(Widget widget, XtPointer arg)    _p_r_o_t_e_c_t_e_d
          void create(Widget parent)
          const char * className()
          void findPeak(Widget widget, XtPointer arg)    _p_r_o_t_e_c_t_e_d
          const char* getColor()
          int getComponent()
          ilRoi* getRoi()
          void getRoiOffset(int& xoffset, int& yoffset)
          virtual void graphExpose(Widget widget, XtPointer arg) _p_r_o_t_e_c_t_e_d
          virtual void graphInput(Widget widget, XtPointer arg)  _p_r_o_t_e_c_t_e_d
          virtual void graphResized(Widget widget, XtPointer arg)     _p_r_o_t_e_c_t_e_d
          virtual void ilUpdateWidget() _p_r_o_t_e_c_t_e_d
          void selectComponent(Widget widget, XtPointer arg)    _p_r_o_t_e_c_t_e_d
          void setColor(const char* colorName)
          void setComponent(int c)
          void setPercentage(Widget widget, parent arg)    _p_r_o_t_e_c_t_e_d
          void setRoi(ilRoi* roi, int xoffset, int yoffset)
          void stepComponent(Widget widget, parent arg)    _p_r_o_t_e_c_t_e_d











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iiiillllVVVVkkkkHHHHiiiissssttttGGGGrrrraaaapppphhhh((((3333))))   IIIImmmmaaaaggggeeeeVVVViiiissssiiiioooonnnn LLLLiiiibbbbrrrraaaarrrryyyy CCCC++++++++ RRRReeeeffffeeeerrrreeeennnncccceeee MMMMaaaannnnuuuuaaaallll   iiiillllVVVVkkkkHHHHiiiissssttttGGGGrrrraaaapppphhhh((((3333))))



FFFFUUUUNNNNCCCCTTTTIIIIOOOONNNN DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNNSSSS
     iiiillllVVVVkkkkHHHHiiiissssttttGGGGrrrraaaapppphhhh(((())))

          ilVkHistGraph( const char * )
          ilVkHistGraph( const char *, Widget )


          Both versions of the constructor take the name of the object and
          assign it to the base widget of the component (see VkComponent).
          The second version of the constructor takes a pointer to the parent
          widget and creates the component as a child.

     aaaauuuuttttooooSSSSccccaaaalllleeee(((())))

          void autoScale( Widget parent, XtPointer arg)


          Automatically scale the histogram to fit the graph area.

     ccccllllaaaassssssssNNNNaaaammmmeeee(((())))

          const char * className()


          Returns the class name of the component.

     ccccrrrreeeeaaaatttteeee(((())))

          void create( Widget parent )


          Creates the component as a child of _p_a_r_e_n_t.

     ffffiiiinnnnddddPPPPeeeeaaaakkkk(((())))

          void findPeak(Widget widget, XtPointer arg)


          Highlight the first peak component value in the histogram.

     ggggeeeettttCCCCoooolllloooorrrr(((())))

          const char* getColor()


          Returns the name of the drawing color.









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iiiillllVVVVkkkkHHHHiiiissssttttGGGGrrrraaaapppphhhh((((3333))))   IIIImmmmaaaaggggeeeeVVVViiiissssiiiioooonnnn LLLLiiiibbbbrrrraaaarrrryyyy CCCC++++++++ RRRReeeeffffeeeerrrreeeennnncccceeee MMMMaaaannnnuuuuaaaallll   iiiillllVVVVkkkkHHHHiiiissssttttGGGGrrrraaaapppphhhh((((3333))))



     ggggeeeettttCCCCoooommmmppppoooonnnneeeennnntttt(((())))

          int getComponent()


          Returns the currently viewed component (or channel).

     ggggeeeettttRRRRooooiiii(((())))

          ilRoi* getRoi()


          Returns the current ROI for the histogram graph.

     ggggeeeettttRRRRooooiiiiOOOOffffffffsssseeeetttt(((())))

          void getRoiOffset(int& xoffset, int& yoffset)


          Returns the offset of the ROI in the source image in _x_o_f_f_s_e_t and
          _y_o_f_f_s_e_t.

     ggggrrrraaaapppphhhhEEEExxxxppppoooosssseeeedddd(((())))

          virtual void graphExposed( Widget, XtPointer )    _p_r_o_t_e_c_t_e_d


          This virtual method is called by the expose callback when the
          component is exposed. The contents of the drawing area are redrawn
          by calling the redraw method on ilDisplay.

     ggggrrrraaaapppphhhhIIIInnnnppppuuuutttt(((())))

          virtual void graphInput( Widget, XtPointer ) _p_r_o_t_e_c_t_e_d


          This virtual method is called by the input callback when X input
          events are received. Since this component statically displays an
          ilImage, no actions are performed in response to input events.
          However, a derived class may choose to manipulate the image within
          the ilDisplay object in response to input events. See also
          iiiillllVVVVkkkkVVVViiiieeeewwwweeeerrrr(3).

     ggggrrrraaaapppphhhhRRRReeeessssiiiizzzzeeeedddd(((())))

          virtual void graphResized( Widget, XtPointer )    _p_r_o_t_e_c_t_e_d


          This virtual method is called by the resize callback when the
          component is resized. It updates the current size of the drawing
          area.




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iiiillllVVVVkkkkHHHHiiiissssttttGGGGrrrraaaapppphhhh((((3333))))   IIIImmmmaaaaggggeeeeVVVViiiissssiiiioooonnnn LLLLiiiibbbbrrrraaaarrrryyyy CCCC++++++++ RRRReeeeffffeeeerrrreeeennnncccceeee MMMMaaaannnnuuuuaaaallll   iiiillllVVVVkkkkHHHHiiiissssttttGGGGrrrraaaapppphhhh((((3333))))



     iiiillllUUUUppppddddaaaatttteeeeWWWWiiiiddddggggeeeetttt(((())))

          virtual void ilUpdateWidget() _p_r_o_t_e_c_t_e_d


          This virtual function is called by sssseeeettttIIIImmmmaaaaggggeeee(), sssseeeettttCCCCoooolllloooorrrr(), and
          sssseeeettttTTTTiiiittttlllleeee(). It causes the component to update its GUI elements. The
          histogram for the currently selected channel is displayed in the
          drawing area using the current color.

     sssseeeelllleeeeccccttttCCCCoooommmmppppoooonnnneeeennnntttt(((())))

          void selectComponent(Widget widget, XtPointer arg)    _p_r_o_t_e_c_t_e_d


          This method is called by the component selection slider when the
          slider is moved. It chooses the component (or channel) for display
          by the histogram graph.

     sssseeeettttCCCCoooolllloooorrrr(((())))

          void setColor(const char* colorName)


          This method set the drawing color to _c_o_l_o_r_N_a_m_e.

     sssseeeettttCCCCoooommmmppppoooonnnneeeennnntttt(((())))

          void setComponent(int c)


          This method sets the selected component (or channel) to _c.

     sssseeeettttPPPPeeeerrrrcccceeeennnnttttaaaaggggeeee(((())))

          void setPercentage(Widget widget, XtPointer arg)    _p_r_o_t_e_c_t_e_d


          This method is invoked when the percentage thumbwheel is modified.
          It scales histogram such that the given percentage of pixels in the
          ROI appears in the graph.

     sssseeeettttRRRRooooiiii(((())))

          void setRoi(ilRoi* roi, int xoffset, int yoffset)


          This method sets the ROI and its offset in the source image for the
          histogram graph.






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iiiillllVVVVkkkkHHHHiiiissssttttGGGGrrrraaaapppphhhh((((3333))))   IIIImmmmaaaaggggeeeeVVVViiiissssiiiioooonnnn LLLLiiiibbbbrrrraaaarrrryyyy CCCC++++++++ RRRReeeeffffeeeerrrreeeennnncccceeee MMMMaaaannnnuuuuaaaallll   iiiillllVVVVkkkkHHHHiiiissssttttGGGGrrrraaaapppphhhh((((3333))))



     sssstttteeeeppppCCCCoooommmmppppoooonnnneeeennnntttt(((())))

          void stepComponent(Widget widget, parent arg)    _p_r_o_t_e_c_t_e_d


          This method is called by the left and right component selection
          arrows in the GUI. It decrements or increments the selected
          component (or channel) number.

IIIINNNNHHHHEEEERRRRIIIITTTTEEEEDDDD MMMMEEEEMMMMBBBBEEEERRRR FFFFUUUUNNNNCCCCTTTTIIIIOOOONNNNSSSS
   IIIInnnnhhhheeeerrrriiiitttteeeedddd ffffrrrroooommmm iiiillllVVVVkkkkCCCCoooommmmppppoooonnnneeeennnntttt
     className(), getImage(), getParent(), ilUpdateWidget(), setImage(),
     setParent()

   IIIInnnnhhhheeeerrrriiiitttteeeedddd ffffrrrroooommmm VVVVkkkkCCCCoooommmmppppoooonnnneeeennnntttt
     afterRealizeHook(), baseWidget(), className(), getResources(), hide(),
     installDestroyHandler(), manage(), name(), okToQuit(), operator Widget(),
     removeDestroyHandler(), setDefaultResources(), show(), unmanage(),
     widgetDestroyed()


SSSSEEEEEEEE AAAALLLLSSSSOOOO
     ilVkComponent, ilImgStat
































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