In article <web.426da894f3d9b99a1362b3f50@news.povray.org>,
 "Ziyan" <beg### [at] hotmailcom> wrote:

>>My program is below, but something wrong happens when I replace the A(...)
>>with object{A(...)} as I want to translate the object {A(...)}and it shows
>>"Prase Error: No matching } in 'object', box found instead."  Could someone
>>here hele me solve the problem?(Without object{} but just with A(...) it
>>runs smoothly and I guess I could invoke the macro with ".inc" but don't
>>know how to invoke it.)
>>
>>#include "colors.inc"
>>#include "textures.inc"
>>#include "metals.inc"
>>
>>camera{
>>       location <0,10,-20>
>>       direction <0,0,1>
>>       up <0,1,0>
>>       right <4/3,0,0>
>>       look_at <0,0,0>
>>      }
>>
>>background {color rgb <0.5,0.5,0.5>}
>>
>>object {light_source {<20,100,-200> colour White}}
>>
>>#macro A(Angle,Radius,y_rotate,A_rotate)
>>
>>#local Index=0;
>>#while (Index<=y_rotate/Angle)
>> #local x_delta_move=-Radius*(1-cos(Angle*Index));
>> #local z_delta_move=-Radius*sin(Angle*Index);
>> #local y_delta_rotate=Index*Angle;
>> box{<-0.4,-0.4,-0.4>,<0.4,0.4,0.4>
>>     translate <x_delta_move,0,z_delta_move>
>>     rotate y_delta_rotate*y
>>     pigment{colour White}
>>     rotate A_rotate*y
>>     scale 0.2}
>> #local Index=Index+1;
>>#end
>>#end
>>
>>object{A (0.01*3.14/180,100,26*3.14/180,180)}
>>object{A (0.01*3.14/180,100,26*3.14/180,0)}


make union{} in your macro like that :

#macro ...
#local index=0;
union {
  #while()
    ...
    box { }
  #end
  }
#end

klp

Post a reply to this message