hello,

I have a macro that generates a mesh object in a "inc" file.

I declare a variables :
  #declare objectName = "TheBrick";


My macro write this name in the inc file with this code :

   #write(OUTFILE,"#declare ",objectName," = mesh {\n")

which generates :

#declare TheBrick = mesh {
  triangle {<-4.25,2.25,-3.25>,<-3.57,2.33,-3.33>,<-4.33,2.33,-2.57>}
  triangle {<-4.33,2.33,-2.57>,<-3.57,2.33,-3.33>,<-3.57,2.52,-2.57>}
  triangle {<-3.57,2.33,-3.33>,<-3.15,2.33,-3.33>,<-3.57,2.52,-2.57>}
  ...
  ...
  }


Now, in the main script if i write :

#include fileName
object {
  objectName
  pigment { color White }
  finish { ambient 0 }
  }


I get this parse error :

  Expected 'object', string identifier found instead.

Seems consistent, but then how can I use this variable to draw object ?

 
Of corse, if i write :
object {
  TheBrick
  pigment { color White }
  finish { ambient 0 }
  }

everything is good. 



-- 
klp

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kurtz le pirate <kur### [at] yahoofr> wrote:
> hello,
>
> I have a macro that generates a mesh object in a "inc" file.
>
> I declare a variables :
>   #declare objectName = "TheBrick";
>
>
> My macro write this name in the inc file with this code :
>
>    #write(OUTFILE,"#declare ",objectName," = mesh {\n")
>
> which generates :
>
> #declare TheBrick = mesh {
>   triangle {<-4.25,2.25,-3.25>,<-3.57,2.33,-3.33>,<-4.33,2.33,-2.57>}
>   triangle {<-4.33,2.33,-2.57>,<-3.57,2.33,-3.33>,<-3.57,2.52,-2.57>}
>   triangle {<-3.57,2.33,-3.33>,<-3.15,2.33,-3.33>,<-3.57,2.52,-2.57>}
>   ...
>   ...
>   }
>
>
> Now, in the main script if i write :
>
> #include fileName
> object {
>   objectName
>   pigment { color White }
>   finish { ambient 0 }
>   }
>
>
> I get this parse error :
>
>   Expected 'object', string identifier found instead.
>
> Seems consistent, but then how can I use this variable to draw object ?
>
>
> Of corse, if i write :
> object {
>   TheBrick
>   pigment { color White }
>   finish { ambient 0 }
>   }
>
> everything is good.
>
>
>
> --
> klp

You are trying to use 'objectname' as an indirect reference which can't work in
POV.  At runtime, it does not substitute "TheBrick" text in place of the
"objectname" text, instead it simply sees 'ojectname' as a string and not an
object, hence the error.

-tgq

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Am 09.05.2013 15:00, schrieb kurtz le pirate:

> I declare a variables :
>    #declare objectName = "TheBrick";
>
>
> My macro write this name in the inc file with this code :
>
>     #write(OUTFILE,"#declare ",objectName," = mesh {\n")
>
> which generates :
>
> #declare TheBrick = mesh {
>    triangle {<-4.25,2.25,-3.25>,<-3.57,2.33,-3.33>,<-4.33,2.33,-2.57>}
>    triangle {<-4.33,2.33,-2.57>,<-3.57,2.33,-3.33>,<-3.57,2.52,-2.57>}
>    triangle {<-3.57,2.33,-3.33>,<-3.15,2.33,-3.33>,<-3.57,2.52,-2.57>}
>    ...
>    ...
>    }
>
>
> Now, in the main script if i write :
>
> #include fileName
> object {
>    objectName
>    pigment { color White }
>    finish { ambient 0 }
>    }
>
>
> I get this parse error :
>
>    Expected 'object', string identifier found instead.
>
> Seems consistent, but then how can I use this variable to draw object ?

Try the "Parse_Strings" macro:

   #include "strings.inc"
   ...
   object {
     Parse_String(objectName)
     ...
   }

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In article <518c3b60$1@news.povray.org>,
 clipka <ano### [at] anonymousorg> wrote:

> Try the "Parse_Strings" macro:
> 
>    #include "strings.inc"
>    ...
>    object {
>      Parse_String(objectName)
>      ...
>    }


i try... thanks

-- 
klp

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