Polygon Plane

Helper

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On 06/03/2010 at 20:13, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   11.5
Platform:   Windows ;
Language(s) :     C++ ;

---------
Hey everyone,

Could anyone tell me the process involved in creating a polygon plane object from scratch? Or point toward something that can guide me through this process.

Thanks,

~Shawn

Helper

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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 08/03/2010 at 09:41, xxxxxxxx wrote:

Anyone have any info about this. I want to know how to create a plane from scratch. Not creating a plane primitive, but creating a polygon object and adjusting its points and polygons to create a plane. Is there something that could point me in the right direction. I checked out the rounded tube sample in the SDK but I do not see where the geometry is created.

Thanks,

~Shawn

Helper

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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 08/03/2010 at 12:22, xxxxxxxx wrote:

Hi, this little example will create a quad with the given coordinates:

  
BaseObject *drawPlane::GetVirtualObjects(PluginObject *op, HierarchyHelp *hh)   
{   
     PolygonObject *obj = NULL;   
     Vector *padr=NULL;   
     CPolygon *vadr=NULL;   
     obj = PolygonObject::Alloc(4,1);   
     if (!obj) goto Error;   
     padr=obj->GetPointW();   
     vadr=obj->GetPolygonW();   
     padr[0] = Vector(-100,0,-100);   
     padr[1] = Vector(-100,0,100);   
     padr[2] = Vector(100,0,100);   
     padr[3] = Vector(100,0,-100);   
     vadr[0] = CPolygon(0,1,2,3);   
     return obj;   
Error:   
     return NULL;   
}

hope it helps..
cheers,
ello

Helper

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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 08/03/2010 at 12:33, xxxxxxxx wrote:

Great, thanks ello. I want to be able to control the number of polys on the plane so I would do this by creating more polys like this?

Thanks again.

~Shawn

Helper

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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 08/03/2010 at 13:29, xxxxxxxx wrote:

yes, you just need to allocate the PolygonObject corresponding to that number, or you adjust it later on with ResizeObject(LONG pcnt, LONG vcnt)

cheers,
ello

Helper

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 RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 08/03/2010 at 15:18, xxxxxxxx wrote:

Hi ello, I copied and pasted your code in to my object plugin just to see how it works and I get nothing. No polygon is created. Any thoughts as yo why this is?

Thanks,

~Shawn

Helper

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

On 08/03/2010 at 23:15, xxxxxxxx wrote:

hm. it worked at home. i'll give it another try here at work when i have a break...

Helper

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

On 08/03/2010 at 23:33, xxxxxxxx wrote:

ok, it works here, too.

here is my whole code:

  
#define pluginID 1000001   
#include "c4d.h"   
#include "c4d_symbols.h"   
#include "customgui_description.h"   
  
#define pluginName "testObj"   
  
class testObj : public ObjectData   
{        
     INSTANCEOF(testObj,ObjectData);   
public:   
     virtual Bool Init(GeListNode *node);   
     virtual BaseObject* GetVirtualObjects(PluginObject *op, HierarchyHelp *hh);   
     virtual Bool Message(GeListNode *node, LONG type, void *t_data);   
     static NodeData *Alloc(void) { return gNew testObj; }   
};   
  
  
  
Bool testObj::Init(GeListNode *node)   
{   
     BaseObject          *op          = (BaseObject* )node;   
     BaseContainer *data = op->GetDataInstance();   
  
     return TRUE;   
}   
  
Bool testObj::Message(GeListNode *node, LONG type, void *t_data)   
{   
     if (type==MSG_DESCRIPTION_VALIDATE)   
     {   
          BaseContainer *data = ((BaseObject* )node)->GetDataInstance();   
     }   
     return TRUE;   
}   
  
BaseObject *testObj::GetVirtualObjects(PluginObject *op, HierarchyHelp *hh)   
{   
     PolygonObject *obj = NULL;   
     Vector *padr=NULL;   
     CPolygon *vadr=NULL;   
     obj = PolygonObject::Alloc(4,1);   
     if (!obj) goto Error;   
     padr=obj->GetPointW();   
     vadr=obj->GetPolygonW();   
     padr[0] = Vector(-100,0,-100);   
     padr[1] = Vector(-100,0,100);   
     padr[2] = Vector(100,0,100);   
     padr[3] = Vector(100,0,-100);   
     vadr[0] = CPolygon(0,1,2,3);   
     return obj;   
Error:   
     return NULL;   
}   
  
  
  
Bool Register_testObj(void)   
{   
     return RegisterObjectPlugin(pluginID,pluginName,OBJECT_GENERATOR|OBJECT_INPUT,testObj::Alloc,"OtestObj","testObj.tif",0);   
}

hope it works for you..