Fil:Orthomagnetic sheet for bubble memory.png
Orthomagnetic_sheet_for_bubble_memory.png (800 × 600 billedpunkter, filstørrelse: 54 KB, MIME-type: image/png)
Denne fil er fra Wikimedia Commons. Beskrivelsen af filen fra Commons er gengivet nedenfor. |
Beskrivelse
BeskrivelseOrthomagnetic sheet for bubble memory.png | This image shows the orthomagnetic "sheet" used in magnetic bubble memory; it has its orthomagnetic axis perpendicular to the square surface. Even without an external field, it tends to form these sharply divided areas, some with north pole up/south pole down, others with the poles the other way around. |
Dato | |
Kilde | Self-made, using the Persistence of Vision Raytracer |
Forfatter | Søren Peo Pedersen |
Tilladelse (Genbrug af denne fil) |
GFDL-self |
Licensering
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Tilladelse er givet til at kopiere, distribuere og/eller ændre dette dokument under betingelserne i GNU Free Documentation License', Version 1.2 eller enhver senere version udgivet af Free Software Foundation; uden et invariant afsnit, ingen forsidetekster, og ingen bagsidetekst. En kopi af licensen er inkluderet i afsnittet GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
Denne fil er udgivet under Creative Commons Kreditering-Del på samme vilkår 3.0 Ikke-porteret-licensen. | ||
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Denne licens blev tilføjet som en del af GFDL-licensopdateringen.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue |
Code
Below is the scene description for the above image, for rendering with the Persistence of Vision Raytracer:
/* ================================================ Orthomagnetic sheet for magnetic bubble memories ------------------------------------------------ Created by Søren Peo Pedersen - see my user page at http://da.wikipedia.org/wiki/Bruger:Peo ================================================ */
#declare MagnetFont="arialbd.ttf" // Font for the nomenclature on magnets #declare NorthLtr="N"; // Letter to indicate north pole #declare SouthLtr="S"; // Letter to indicate south pole #declare MagLayerUp=pigment { // Gradient that has gradient y // white south pole color_map { // "side" pointing up [0.0 color rgb <1,0,0>] // and red north pole [1.0 color rgb <1,1,1>] // pointing down } scale .000602 translate -.000301 } #declare MagLayerDn=pigment { // Gradient that has gradient y // red north pole color_map { // "side" pointing up [0.0 color rgb <1,1,1>] // and white south [1.0 color rgb <1,0,0>] // pole pointing down } scale .000602 translate -.000301 } #declare PolLayerUp=pigment { // Like MagLayerUp, but object { // with "S'es" to indicate union { // magnetic polarity text {ttf MagnetFont,SouthLtr,1,0 scale 1.3 rotate <90,0,0> translate <1,1,0>} text {ttf MagnetFont,SouthLtr,1,0 scale 1.3 rotate <90,0,0> translate <1.3,1,-3.1>} } pigment {MagLayerUp} pigment {color rgb <1,0,0>} } } #declare PolLayerDn=pigment { // Like MagLayerDn, but object { // with "N's" to indicate union { // magnetic polarity text {ttf MagnetFont,NorthLtr,1,0 scale 1.3 rotate <90,0,0> translate <-2,1,-1.2>} text {ttf MagnetFont,NorthLtr,1,0 scale 1.3 rotate <90,0,0> translate <3,1,-3.7>} text {ttf MagnetFont,NorthLtr,1,0 scale 1.3 rotate <90,0,0> translate <2.6,1,-1.2>} } pigment {MagLayerDn} pigment {color rgb <1,1,1>} } } box {<-4,-.3,-4>,<4,.3,4> // The orthomagnetic slab pigment { bumps // "Bumps" is the pattern that the pigment_map { // domains' polarities form [0.0 PolLayerUp] [0.5 PolLayerUp] [0.5 PolLayerDn] [1.0 PolLayerDn] } scale <1,1000,1> // "stretch" so the boundaries look more or } // less orthogonal with the plate's surface finish {ambient .5} } background {color rgb 1} // White backdrop camera { // See the whole scenario location <5,6,-7> // from this point, look_at <-.4,-2.1,0> // looking towards this point. angle 60 // "Fine-tune" field-of-view to fit the motif } light_source { // Illumination <-100,150,-120> color rgb 1 }
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Dato/tid | Miniaturebillede | Dimensioner | Bruger | Kommentar | |
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nuværende | 13. dec. 2007, 23:59 | 800 × 600 (54 KB) | Peo~commonswiki | {{Information |Description=This image shows the orthomagnetic "sheet" used in magnetic bubble memory; it has it's orthomagnetic axis perpendicular to the square surface. Even without an external field, it tends to form these sharply divided areas, some wi |
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