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I have written een scene that makes a form out of three objects, top, grnd and
bottom.
Rendering top and grnd works perfect, but when i include the bottompart all
shifts down.
I have looked for some time now where the fault might be but cant find it.
[code]
//
#version 3.6;
#declare black_al = color red .17 green .17 blue .17 ;
//#declare inc_testmode=true; // Uncomment for NOT showing
grid and axle
#include "colors.inc" // Standard Color definitions
#include "textures.inc" // Standard Texture definitions
#include "functions.inc" // internal functions usable in user defined functions
// various metal colors, finishes and textures
// brass, copper, chrome, silver
#include "metals.inc"
#include "ExtraTextures.inc"
camera
{
#local tt = 450; //let's you change the distance easily
location <-tt,tt,-tt>
//location<0,5,-50> //alternate location
look_at <0,0,0> //best to select the approximate centre of the object
angle 30
}
light_source { <100, 100, -100> White}
light_source { <-100, 100, -100> White }
light_source { <-100, 100, 100> White }
light_source { <100, 100, 100> White }
background{Grey}
#ifndef(inc_testmode)
//Size of the Grid Plane (+/- span)
#local XYZ_span=80;
//Orientation axes
cylinder{<-XYZ_span,0,0><XYZ_span,0,0>0.25 pigment{Blue}} //X
cylinder{<0,-XYZ_span,0><0,XYZ_span,0>0.25 pigment{Red}} //Y
cylinder{<0,0,-XYZ_span><0,0,XYZ_span>0.25 pigment{Yellow}} //Z
// Useful GRIDS:
#local XYZ_step= 5 ; // axis increment
#local XYZ_cnt = 0; // loop counter
#local xyz_thick = 0.125; // grid line thickness
// GRID PLANES: Remove comment begin/end to activate & select PLANES:
#while (XYZ_cnt <= XYZ_span)
//cylinder{<-XYZ_span,0,XYZ_cnt><XYZ_span,0,XYZ_cnt>xyz_thick pigment{Blue}}
// Positive Z-Lines
//cylinder{<-XYZ_span,0,-XYZ_cnt><XYZ_span,0,-XYZ_cnt>xyz_thick pigment{Blue}}
// Negative Z-Lines
//cylinder{<0,XYZ_cnt,-XYZ_span><0,XYZ_cnt,XYZ_span>xyz_thick pigment{Red}} //
Positive Y-Z Plane Lines
//cylinder{<0,-XYZ_cnt,-XYZ_span><0,-XYZ_cnt,XYZ_span>xyz_thick pigment{Red}}
// Negative Y-Z Plane Lines
//cylinder{<-XYZ_span,XYZ_cnt,0><XYZ_span,XYZ_cnt,0>xyz_thick pigment{Red}} //
Positive Y-X Plane Lines
//cylinder{<-XYZ_span,-XYZ_cnt,0><XYZ_span,-XYZ_cnt,0>xyz_thick pigment{Red}}
// Negative Y-X Plane Lines
//cylinder{<XYZ_cnt,0,-XYZ_span><XYZ_cnt,0,XYZ_span>xyz_thick pigment{Yellow}}
// Positive X-Lines
//cylinder{<-XYZ_cnt,0,-XYZ_span><-XYZ_cnt,0,XYZ_span>xyz_thick
pigment{Yellow}} // Negative X-Lines
#local XYZ_cnt = XYZ_cnt+XYZ_step;
#end
#end
#macro spindle_grnd()
#end
#macro housing_grnd(L1)
#local HL = L1 - 16; // Total lenght mines top and bottom plate
union {
difference {
cylinder{<0,0,0><0,HL,0>27.5 texture{black_rough_paint} } //
The outer cylinder with a diameter off 55mm
cylinder{<0,0.5,0><0,HL+.5,0>25.5 texture{Brushed_Aluminum} }
// Create a tube
} translate <0,-HL,0> translate <0,-8,0> // Move it to the
correct position
} // end union
#end
#macro housing_top()
union {
difference { // Create the outher ring
union {
cylinder{<0,0,0><0,-8,0>27.5 texture{ Silver_Metal} }
cylinder{<0,0,0><0,2.5,0>16 texture{ Silver_Metal} }
} // end union
cylinder{<0,2.55,0><0,-8.5,0>14.4 texture{Brushed_Aluminum} }
cylinder{<0,0.55,0><0,-8.5,0>2.5 texture{Brushed_Aluminum}
translate<20,0,0> rotate<0,45,0> }
cylinder{<0,0.55,0><0,-8.5,0>2.5 texture{Brushed_Aluminum}
translate<20,0,0> rotate<0,135,0> }
cylinder{<0,0.55,0><0,-8.5,0>2.5 texture{Brushed_Aluminum}
translate<20,0,0> rotate<0,225,0> }
cylinder{<0,0.55,0><0,-8.5,0>2.5 texture{Brushed_Aluminum}
translate<20,0,0> rotate<0,315,0> }
} // end difference
difference { // Create the rubber seal
cylinder{<0,2.25,0><0,-8,0>14.5 pigment{Cherry_Wood} }
cylinder{<0,3,0><0,-8.5,0>14 pigment{Cherry_Wood} }
} // end difference
difference { // Create inner ring
cylinder{<0,2.5,0><0,-8,0>14 texture{ Silver_Metal} }
cylinder{<0,3,0><0,-8.5,0>12.5 texture{ Silver_Metal} }
}
difference { // Create the top seal
cylinder{<0,2.35,0><0,-8,0>12.5 pigment{Brown} }
cylinder{<0,3,0><0,-8.5,0>8 pigment{Brown} }
}
difference { // Create the inner ring
cylinder{<0,2.5,0><0,-8,0>8 texture{ Silver_Metal} }
cylinder{<0,3,0><0,-8.5,0>6 texture{ Silver_Metal} }
}
}
#end
#macro housing_bottom(L1, L2, L3, L4, D2, D3, D4)
difference {
box{<-L4/2,0,L4/2><L4/2,8,-L4/2> }
cylinder{<0,0.5,0><0,-L3,0>D2/2 }
cylinder{<0,-0.5,0><0,8.5,0>13 }
cylinder{<0,8.5,0><0,-.5,0>D4/2 translate<D3/2,0,0> rotate<0,45,0> }
cylinder{<0,8.5,0><0,-.5,0>D4/2 translate<D3/2,0,0> rotate<0,135,0> }
cylinder{<0,8.5,0><0,-.5,0>D4/2 translate<D3/2,0,0> rotate<0,225,0> }
cylinder{<0,8.5,0><0,-.5,0>D4/2 translate<D3/2,0,0> rotate<0,315,0> }
} texture{ Silver_Metal} translate <0,-L1,0> translate <0,-8,0>
#end
#macro housing_complete(L1, L2, L3, L4, D2, D3, D4)
union {
housing_top()
housing_grnd(L1)
housing_bottom(L1,L2, L3, L4, D2, D3, D4)
}
#end
#macro RE55_NEMA23(L1, L2, L3, L4, D2, D3, D4)
housing_complete(L1, L2, L3, L4, D2, D3, D4)
#end
// Create a RE55 planetary gearbox type NEMA 23 2 stages (1:42)
// L1=86, L2=25, L3=3, L4=60 D1=11 D2=38,1 D3=66,67 D4=5,5
RE55_NEMA23(86, 25, 3, 60, 38.1, 66.67, 5.5)
[/code]
Any help would be welcome
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On 06/07/2013 05:50 PM, gharryh wrote:
> #macro housing_bottom(L1, L2, L3, L4, D2, D3, D4)
> difference {
> box{<-L4/2,0,L4/2><L4/2,8,-L4/2> }
> cylinder{<0,0.5,0><0,-L3,0>D2/2 }
> cylinder{<0,-0.5,0><0,8.5,0>13 }
> cylinder{<0,8.5,0><0,-.5,0>D4/2 translate<D3/2,0,0> rotate<0,45,0> }
> cylinder{<0,8.5,0><0,-.5,0>D4/2 translate<D3/2,0,0> rotate<0,135,0> }
> cylinder{<0,8.5,0><0,-.5,0>D4/2 translate<D3/2,0,0> rotate<0,225,0> }
> cylinder{<0,8.5,0><0,-.5,0>D4/2 translate<D3/2,0,0> rotate<0,315,0> }
> } texture{ Silver_Metal} translate <0,-L1,0> translate <0,-8,0>
> #end
If you look near the #end statement just above, it appears your texture
and translate statements are actually outside the difference {} so they
will get applied in the final union {}.
Bill P.
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