Pcbnew: cleaned code in ratsnet calculations (work in progress). The new code is also faster.

 * Gavin Bell

 */

#include <math.h>

#include "fctsys.h"         // used only to define GLfloat

#include "3d_viewer.h"      // used only to define GLfloat

#include "wx/glcanvas.h"     // used only to define GLfloat

#include "trackball.h"

/*

Please add newer entries at the top, list the date and your name with

email address.

2009-may-24 UPDATE Jean-Pierre Charras <jean-pierre.charras@gipsa-lab.inpg.fr>

================================================================================

++Pcbnew:

    clean code in ratsnet calculations (work in progress)

    The old code was very difficukt to understand, and was sometime very ugly.

    Mainly, the list of nets (RATSNEST_ITEM class, formerly EQUIPOT class)

    are now handled in a std::vector, and not a linked list.

    This is better, because nets identifiers for pads and tracks are a number called netcode.

    now, this is the index of the given net in this list, and the code to find a net given by its netcode

    is very fast.

2009-may-12 UPDATE Jean-Pierre Charras <jean-pierre.charras@gipsa-lab.inpg.fr>

================================================================================

++All:

    ../pcbnew/class_drc_item.cpp

    ../pcbnew/class_edge_mod.cpp

    ../pcbnew/class_equipot.cpp

    ../pcbnew/class_netinfolist.cpp

    ../pcbnew/class_marker.cpp

    ../pcbnew/class_mire.cpp

    ../pcbnew/class_module.cpp

    TYPE_PCB,

    // Items in pcb

    TYPE_EQUIPOT,

    TYPE_MODULE,

    TYPE_PAD,

    TYPE_DRAWSEGMENT,

#define EXTERNAL_LAYERS         0x00008001

/* Forward declaration */

class EQUIPOT;

class NETINFO_ITEM;

class MARKER;

class CHEVELU;

class RATSNEST_ITEM;

//class Ki_PageDescr;

//class DrawBlockStruct;