get selection poligon vertex and perform a scaling

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 26/08/2011 at 03:09, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   12 
Platform:      
Language(s) :   C.O.F.F.E.E  ;

---------
I'm using c.o.f.f.e.e. (no pytohon, no c++) i'm in polygon mode i would to do these things:

1. enable menu plugin if the user is in polygon mode and has selected a poligon
2. get all the list of polygon selected
3. then perform a scaling but only for the X axis
    
   very big thanks!

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 30/08/2011 at 09:42, xxxxxxxx wrote:

The state of the menu entry is controled via the MenuPlugin::GetState method. Override it for your own plugins. The other points are explained in my example.

  
class MPPlugin : MenuPlugin  
{  
  public:  
      MPPlugin();  
  
      GetID();  
      GetName();  
      GetState();  
        
      GetHelp();  
      Execute(doc);  
}  
  
MPPlugin::MPPlugin()  
{  
  super();  
}  
  
MPPlugin::GetID()  
{  
  return 1001150;  
}  
  
MPPlugin::GetState()  
{  
  var doc = GetActiveDocument();  
  if (!doc) return 0;  
    
  // is polygon mode checked  
  if (!IsCommandChecked(12187)) return 0;  
  
  // is there an selected object and is it a polygon object  
  var op = doc->GetActiveObject();  
  if (!op || op->GetType() != Opolygon) return 0;  
    
  // is at least one polyogn selected  
  var sel = op->GetPolygonSelection();  
  if (sel->GetCount() == 0) return 0;  
    
  return CMD_ENABLED;  
}  
  
MPPlugin::GetName()  
{  
  return "Scale Test";  
}  
  
MPPlugin::GetHelp()  
{  
  return "Scale Test";  
}  
  
  
MPPlugin::Execute(doc)  
{  
  var op = doc->GetActiveObject();  
  if (!op || op->GetType() != Opolygon) return 0;  
    
  var sel = op->GetPolygonSelection();  
  if (sel->GetCount() == 0) return;  
  
  var fcnt = op->GetPolygonCount();  
  var vcnt = op->GetPointCount();  
    
  // create a vertex index array to store selection states for vertices of selected polygons  
  var vidx = new(array,vcnt);  
  if (!vidx) return;  
    
  var i = 0;  
    
  // initialize the array  
  for (i=0; i<vcnt; i++)  
  {  
      vidx[i] = FALSE;  
  }  
    
  // converts polygon selection into point selection  
  for (i=0; i<fcnt; i++)  
  {  
      if (sel->IsSelected(i))  
      {  
          var poly = op->GetPolygon(i);  
          vidx[poly->a] = TRUE;  
          vidx[poly->b] = TRUE;  
          vidx[poly->c] = TRUE;  
          vidx[poly->d] = TRUE;        }  
  }  
    
  // go through the vertices and do something (e.g scale)  
  for (i=0; i<vcnt; i++)  
  {  
      if (vidx[i])  
      {  
          var vertex = op->GetPoint(i);  
            
          // do something with vertex  
          vertex.x *= 5.0;  
          //vertex.y *= 2.0;  
          //vertex.z *= 3.0;   
            
          op->SetPoint(i, vertex);  
      }  
  }  
    
  // must be called for object and editor update  
  op->Message(MSG_UPDATE);  
  EventAdd();  
}  
  
  
main()  
{  
  Register(MPPlugin);  
}  

cheers,
Matthias