Re: Two Marker Styles and SetMarkerAttributes

Thomas,

It does not make sense to draw a TAttxxx class. What do you want to draw? where?
These classes make sense only when used with multiple inheritance in TObject derived objects. See plenty of examples in ROOT classes Tline, TBix, TText, TH1, etc.

Rene Brun

On Fri,
29 Jul 2005, Thomas
Bretz wrote:

> How can I draw a TAtt*, this classes do not derive from TObject.
>
> Do I have to make a workaround as
> class MyAtt : public TObject, public TAttMarker
> {
> }
>
> Thomas.
>
> Rene Brun wrote:
>> Two points:
>> -the object must be drawn in the pad
>> -the function with *MENU* must be a public function
>>
>> Rene
>>
>> On Thu, 28 Jul 2005, Thomas Bretz wrote:
>>
>>> Dear all,
>>>
>>> I have a class which contains two TAttMarkerStyle for two different
>>> purposes. I thought, I could add both to the context menu by:
>>>
>>> class A : public TAttLine
>>> {
>>> TAttMarker m1;
>>> TAttMarker m2;
>>> void SetAtt1() { m1.SetMarkerAttributes; } //*MENU*
>>> void SetAtt2() { m2.SetMarkerAttributes; } //*MENU*
>>> }
>>> But using the corresponding menu entries in the context menu I always get
>>> the SetLineAttributes() menu...
>>>
>>> You can reproduce it in the interpreter by:
>>> new TCanvas;
>>> TAttMarker m;
>>> m.SetMarkerAttributes();
>>>
>>> --> You get the SetPadAttributes() menu.
>>>
>>> I'm using root 4.04/02.
>>>
>>> Can somebody help me?
>>>
>>> Thanks in advance,
>>> Thomas.
>>>
>>
>
Received on Fri Jul 29 2005 - 11:42:17 MEST