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Never mind. I found it. I need a "union" in my second macro to make it
work the way I thought it should -- i.e. treat it as a single object.
Dave Matthews
Dave Matthews wrote:
> The code below works, but by my reasoning it shouldn't. I had to move a
> "}" to what is "clearly" the "wrong" location (obviously it isn't wrong,
> since it works; what is wrong is my logic.) When I close out my objects
> the way I think I should, I get a parse error. Can someone spot my
> mistake?
>
> (If the code seems a bit strange, it's because I've stripped it down as
> much as I can, I think, and still have the problem.)
>
> ////////Code
> //Ball-And-Stick Fragment
>
> #macro B_And_S_Triangle(V_Array,BR,SR)
> union {
> sphere { 0, 1 scale BR pigment { color rgb x }
> translate V_Array[0]}
> sphere { 0, 1 scale BR pigment { color rgb y }
> translate V_Array[1]}
> sphere { 0, 1 scale BR pigment { color rgb z }
> translate V_Array[2]}
> cylinder { V_Array[0], V_Array[1], SR
> pigment { color rgb x+y } }
> cylinder { V_Array[0], V_Array[2], SR
> pigment { color rgb x+y } }
> cylinder { V_Array[1], V_Array[2], SR
> pigment { color rgb x+y } }
> }
> #end
> //Of Macro The problem's probably somewhere above, but I can't find it.
>
>
>
> // Second macro, calls above macro twice:
>
> #macro Ball_And_Stick(SArray,DArray,B_Rad,S_Rad)
>
> #declare Source_Triangle =
> B_And_S_Triangle(SArray,B_Rad,S_Rad)
>
> #declare Destination_Triangle =
> B_And_S_Triangle(DArray,B_Rad/2,S_Rad/2)
>
> //Here's "misplaced" "}"
>
> object { Source_Triangle }}
>
> //I think there should only be one "}" ending above object
>
> object { Destination_Triangle }
>
> #end //Of 2nd macro
>
>
> // Here's the main body
>
>
> #declare Source_Points = array[3];
>
> #declare Source_Points[0] = <0, 0, 0>;
> #declare Source_Points[1] = <0, 5, 0>;
> #declare Source_Points[2] = <5, 0, 0>;
>
>
> #declare Destination_Points = array[3];
>
> #declare Destination_Points[0] = <1, 1, 0>;
> #declare Destination_Points[1] = <2, 1, 0>;
> #declare Destination_Points[2] = <1, 2, 0>;
>
> //Here's "missing" "}"
> object { Ball_And_Stick(Source_Points,Destination_Points,0.5, 0.1)
> //I think there should be a "}" to end the above object.
>
> camera { angle 60 location <3, 3, -20>
> look_at <3, 3, 0>
> right x*image_width/image_height
> up y }
>
> light_source { -100*z color rgb 1 }
>
> background { color rgb 0.7 }
>
>
> //////////////////////////
> I've been tearing out what little hair I have left, trying to solve
> this. Thanks in advance for any help.
>
> Dave Matthews
>
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