תמונה:Siphon Lock Overview.png
מתוך ויקיפדיה, האנציקלופדיה החופשית
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Siphon_Lock_Overview.png (800 × 600 פיקסלים, גודל הקובץ: 217 קילו־בייט, סוג MIME: image/png)
| זהו קובץ שמקורו במיזם ויקישיתוף. תיאורו בדף תיאור הקובץ המקורי מוצג למטה. |
[edit] Beskrivelse
Cut-away rendering of siphon lock, with number annotations and an indication of the pressure depth of the water inside the lock.
| Description |
3D computer graphics showhing a cut-away overview of siphon lock |
|---|---|
| Source |
Self-made |
| Date |
December 4th, 2006 |
| Author |
Søren Peo Pedersen |
| Permission (Reusing this image) |
GFDL-self |
[edit] Licensing
[edit] POV-Ray code
This image was rendered using the Persistence of Vision Raytracer (or POV-Ray for short), using the scene description code shown below. To render, POV-Ray needs access to the "Timesbd.ttf" TrueType font file, which is used for the number annotations.
/* =============================================== Annotated cut-away rendering of the siphon lock ----------------------------------------------- Created by Søren Peo Pedersen - see my user pa- ge at http://da.wikipedia.org/wiki/Bruger:Peo =============================================== */ #declare txtRedCutFace=texture { // Texture for cutaway surfaces on pipework: pigment {color rgb <1,0,0>} // <== Edit this line to change color finish {ambient .4} } #declare txtPipeMetal=texture { // Metal testure used for the pipework pigment {color rgb .4} finish {ambient .4 reflection .4 metallic 1 phong 1} } #declare CleanWater=material { // Texture for (relatively) texture { // clean water inside the pigment {color rgbf <.8,.9,1,1>} // siphon lock finish {ambient .4 reflection .1} } interior {ior 1.3} } #declare FilthyWater=material { // Texture for filthy water texture { // in the large sewage pipe pigment { granite // Lumpy appearance...! color_map { [0 color rgbf <.6,.73,.75,1>] // Has a more "sick" color [.3 color rgbf <.6,.73,.75,1>] // and spots or "lumps" [1 color rgbf <.6,.5,.3,.6>] // with brownish color! } scale <10,3,3> } finish {ambient .4 reflection .1} } interior {ior 1.3} } #declare SemicircPipe=difference { // Semicircular torus {2,1} // piece of pipe torus {2,.9} plane {<0,0,-1>,0} rotate <-90,0,0> } #declare SemicircWater=difference { // Shape of the water torus {2,.901} // volume inside above- plane {<0,0,-1>,-.001} // mentioned pipe. rotate <-90,0,0> } difference { // Cut-away of plumbing: merge { // Plumbing: // The "sink" symbolizing the source of waste water: /* Hole at bottom */ difference {torus {1.3,.4 translate <-4,4,0>} torus {1.3,.3 translate <-4,3.8,0>} cylinder {<-4,3.8,0>,<-4,6,0>,1.3 inverse}} /* Bowl-shape */ difference {torus {1.3,2 translate <-4,6.1,0>} torus {1.3,1.7 translate <-4,6.1,0>} cylinder {<-4,0,0>,<-4,8,0>,1.3} plane {<0,-1,0>,-6.1}} /* Bowl-shape */ difference {torus {3.4,.4 translate <-4,6.1,0>} torus {3.4,.1 translate <-4,6.1,0>} cylinder {<-4,6.1,0>,<-4,8,0>,3.4 inverse}} /* "Tabletop" */ difference {box {<-7.6,6.2,-1>,<-.4,6.5,3.6>} cylinder {<-4,6,0>,<-4,7,0>,3.4}} // Straight piece of pipe betw. sink and trap: difference {cylinder {<-4,2,0>,<-4,4,0>,1} cylinder {<-4,1,0>,<-4,5,0>,.9}} // The siphon trap: #object {SemicircPipe translate <-2 ,2,0>} #object {SemicircPipe rotate <0,0,180> translate <2,2,0>} // Large sewer pipe with connection to siphon trap: difference { merge { blob {threshold 0.5 cylinder {<2,10,0>,<2,-3,0>,.7,2.084} cylinder {<-100,-3,0>,<100,-3,0>,2,3}} cylinder {<-.3,-3,0>,<.3,-3,0>,1.7 translate <-3,0,0>} // "Joints" cylinder {<-.3,-3,0>,<.3,-3,0>,1.7 translate <1,0,0>} // between cylinder {<-.3,-3,0>,<.3,-3,0>,1.7 translate <3,0,0>} // "sections" cylinder {<2,-1,0>,<2,-.8,0>,.6} // of pipe } blob {threshold 0.8 cylinder {<2,10,0>,<2,-3,0>,.7,2.324} cylinder {<-100,-3,0>,<100,-3,0>,2,3}} plane {<0,-1,0>,-1} scale 2 } } // (end of merge containing all the pipework) plane {<0,0,1>,0} // Cuts away one half to see inside texture {planar texture_map { [0.000 txtPipeMetal] [0.999 txtPipeMetal] [0.999 txtRedCutFace] [1.000 txtRedCutFace] } rotate <90,0,0>}} // Clean water inside lock: intersection { merge { #object {SemicircWater translate <-2 ,2,0>} #object {SemicircWater rotate <0,0,180> translate <2,2,0>} cylinder {<-4,2,0>,<-4,4,0>,.9001} } box {<-9,-9,0>,<2,3.1,5>} material {CleanWater} } // Dark greenish/brown "fumes" to symbolize foul smell from sewer difference { // Shape of the volume of (smelly) air trapped behind the lock merge { difference { blob {threshold 0.8 cylinder {<2,10,0>,<2,-3,0>,.7,2.324} cylinder {<-100,-3,0>,<100,-3,0>,2,3} scale 2} plane {<0,-1,0>,-2} } #object {SemicircWater rotate <0,0,180> translate <2,2,0>} } plane {<0,0,1>,0} plane {<0,1,0>,-5.999} box {<-9,0,-5>,<2,3.1001,5>} pigment {color rgbt 1} hollow interior { media { intervals 10 samples 1,1 confidence 0.9 variance 1/128 ratio 0.9 absorption rgb<.38,.33,.6> method 1 density {granite scale 10} } } } // "Bad" water in sewer pipe: intersection { cylinder {<-100,-6,0>,<100,-6,0>,2.351226} box {<-100,-20,-.4>,<100,-7,5>} material {FilthyWater} } union { // Line and arrow indicating the "depth" of the lock #local Cnt=0; // Loop to make dot-dashed line #while (Cnt<16) box {<-5.3+Cnt*.5,3.08,-.0001>,<-5+Cnt*.5,3.12,0>} #local Cnt=Cnt+1; #end triangle {<-2,3.1,0>,<-2.2,2.6,0>,<-1.8,2.6,0>} triangle {<-2,0.9,0>,<-2.2,1.4,0>,<-1.8,1.4,0>} box {<-2.05,1.4,-.00001>,<-1.95,2.6,0>} pigment {color rgb 0} no_shadow no_reflection } union { // Number annotations text {ttf "timesbd.ttf","1",.001,0 translate <-1.8,2.2,0>} // 1: Drain from sink, WC, etc. text {ttf "timesbd.ttf","2",.001,0 translate <2.5,.5,0>} // 2: Water level on sewer side text {ttf "timesbd.ttf","3",.001,0 translate <-1.8,.3,0>} // 3: Water level on drain side text {ttf "timesbd.ttf","4",.001,0 translate <3.3,-2,0>} // 4: Connection to sewer text {ttf "timesbd.ttf","5",.001,0 translate <0,-1.6,0>} // 5: Water inside siphon lock scale .00001 translate <0,0,-13.88692> pigment {color rgb 0} rotate <13.74679514,15.47863817,0> translate <-2.4,1.7,0> } camera { location <-6,5,-13> look_at <-2.4,1.7,0> angle 55 } #declare Spotty=pigment { // Pattern for "spotty bumps // surroundings", to color_map { // make metal look [0 color rgb 0] // "really metallic". [1 color rgb 1] } scale .3 } sky_sphere {pigment { // Combine spotty pattern gradient z // with a neutral, white pigment_map { // background for the a- [0 Spotty] // rea the camera "sees". [.9 Spotty] [.8 color rgb 1] [1 color rgb 1] } translate -.5 scale 2 rotate <19,15.4,0> }} light_source {<-100,70,-230> color rgb 1}
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| תאריך/שעה | ממדים | משתמש | הערה | |
|---|---|---|---|---|
| נוכחית | 01:04, 5 בדצמבר 2006 | 800×600 (217 קילו־בייט) | Peo | (Cut-away rendering of siphon lock, with number annotations and an indication of the pressure depth of the water inside the lock.) |
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