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MacBinary | 1993-03-07 | 5.3 KB | [ TEXT/KAHL]
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MacBinary II, inited, Sun Mar 7 01:34:14 1993, modified Sun Mar 7 01:34:14 1993, creator Think C, type ASCII, 4852 bytes "Grating.c" , at 0x1374 330 bytes resource
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MacBinary 2
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id metadata key value macFileType [ TEXT] macFileCreator [ KAHL]
hex view +--------+-------------------------+-------------------------+--------+--------+ |00000000| 00 09 47 72 61 74 69 6e | 67 2e 63 00 00 00 00 00 |..Gratin|g.c.....| |00000010| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........| |00000020| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........| |00000030| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........| |00000040| 00 54 45 58 54 4b 41 48 | 4c 01 00 00 00 00 00 00 |.TEXTKAH|L.......| |00000050| 00 00 00 00 00 12 f4 00 | 00 01 4a a7 bf 47 e6 a7 |........|..J..G..| |00000060| bf 47 e6 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |.G......|........| |00000070| 00 00 00 00 00 00 00 00 | 00 00 81 81 15 62 00 00 |........|.....b..| |00000080| 2f 2a 0d 47 72 61 74 69 | 6e 67 2e 63 0d 54 68 69 |/*.Grati|ng.c.Thi| |00000090| 73 20 64 65 6d 6f 20 73 | 68 6f 77 73 20 68 6f 77 |s demo s|hows how| |000000a0| 20 74 6f 20 6c 6f 61 64 | 20 74 68 65 20 63 6c 75 | to load| the clu| |000000b0| 74 20 61 6e 64 20 70 75 | 74 20 61 20 76 69 67 6e |t and pu|t a vign| |000000c0| 65 74 74 65 64 20 67 72 | 61 74 69 6e 67 20 6f 6e |etted gr|ating on| |000000d0| 74 6f 20 74 68 65 0d 73 | 63 72 65 65 6e 2e 20 54 |to the.s|creen. T| |000000e0| 68 69 73 20 64 65 6d 6f | 20 68 61 73 20 62 65 65 |his demo| has bee| |000000f0| 6e 20 6b 65 70 74 20 61 | 73 20 73 69 6d 70 6c 65 |n kept a|s simple| |00000100| 20 61 73 20 70 6f 73 73 | 69 62 6c 65 2c 20 74 6f | as poss|ible, to| |00000110| 20 65 6e 68 61 6e 63 65 | 20 72 65 61 64 61 62 69 | enhance| readabi| |00000120| 6c 69 74 79 2c 0d 66 6f | 72 73 61 6b 69 6e 67 20 |lity,.fo|rsaking | |00000130| 61 63 63 75 72 61 74 65 | 20 63 6f 6e 74 72 6f 6c |accurate| control| |00000140| 20 6f 76 65 72 20 74 69 | 6d 65 20 61 6e 64 20 63 | over ti|me and c| |00000150| 6f 6e 74 72 61 73 74 20 | 6f 66 20 74 68 65 20 73 |ontrast |of the s| |00000160| 74 69 6d 75 6c 75 73 2e | 20 54 68 65 0d 46 6c 69 |timulus.| The.Fli| |00000170| 63 6b 65 72 69 6e 67 47 | 72 61 74 69 6e 67 20 64 |ckeringG|rating d| |00000180| 65 6d 6f 2c 20 6f 6e 20 | 74 68 65 20 6f 74 68 65 |emo, on |the othe| |00000190| 72 20 68 61 6e 64 2c 20 | 69 73 20 73 6f 6d 65 77 |r hand, |is somew| |000001a0| 68 61 74 20 6d 6f 72 65 | 20 65 6c 61 62 6f 72 61 |hat more| elabora| |000001b0| 74 65 20 61 6e 64 0d 70 | 72 65 73 65 6e 74 73 20 |te and.p|resents | |000001c0| 61 20 72 65 73 65 61 72 | 63 68 2d 67 72 61 64 65 |a resear|ch-grade| |000001d0| 20 73 74 69 6d 75 6c 75 | 73 20 69 66 20 74 68 65 | stimulu|s if the| |000001e0| 20 4c 75 6d 69 6e 61 6e | 63 65 52 65 63 6f 72 64 | Luminan|ceRecord| |000001f0| 2e 68 20 63 61 6c 69 62 | 72 61 74 69 6f 6e 20 64 |.h calib|ration d| |00000200| 61 74 61 20 61 72 65 0d | 61 63 63 75 72 61 74 65 |ata are.|accurate| |00000210| 2e 0d 0d 46 6f 72 20 61 | 20 72 65 61 6c 20 65 78 |...For a| real ex| |00000220| 70 65 72 69 6d 65 6e 74 | 20 74 68 65 72 65 20 61 |periment| there a| |00000230| 72 65 20 73 6f 6d 65 20 | 72 65 66 69 6e 65 6d 65 |re some |refineme| |00000240| 6e 74 73 20 79 6f 75 20 | 73 68 6f 75 6c 64 20 63 |nts you |should c| |00000250| 6f 6e 73 69 64 65 72 2e | 20 54 68 69 73 20 64 65 |onsider.| This de| |00000260| 6d 6f 0d 74 61 6b 65 73 | 20 61 20 77 68 69 6c 65 |mo.takes| a while| |00000270| 20 74 6f 20 63 72 65 61 | 74 65 20 74 68 65 20 69 | to crea|te the i| |00000280| 6d 61 67 65 20 6f 6e 20 | 74 68 65 20 73 63 72 65 |mage on |the scre| |00000290| 65 6e 2c 20 62 75 74 20 | 79 6f 75 20 70 72 6f 62 |en, but |you prob| |000002a0| 61 62 6c 79 20 77 61 6e | 74 0d 66 72 61 6d 65 2d |ably wan|t.frame-| |000002b0| 61 63 63 75 72 61 74 65 | 20 74 69 6d 69 6e 67 20 |accurate| timing | |000002c0| 69 6e 20 79 6f 75 72 20 | 65 78 70 65 72 69 6d 65 |in your |experime| |000002d0| 6e 74 2e 20 59 6f 75 20 | 63 6f 75 6c 64 20 65 69 |nt. 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That |package | |00000960| 69 6d 70 6c 65 6d 65 6e | 74 73 20 74 68 65 0d 70 |implemen|ts the.p| |00000970| 75 62 6c 69 73 68 65 64 | 20 61 6c 67 6f 72 69 74 |ublished| algorit| |00000980| 68 6d 20 6f 66 20 50 65 | 6c 6c 69 20 61 6e 64 20 |hm of Pe|lli and | |00000990| 5a 68 61 6e 67 20 28 31 | 39 39 31 29 2e 20 54 68 |Zhang (1|991). 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P| |00000d70| 72 6f 63 65 65 64 69 6e | 67 20 61 6e 79 77 61 79 |roceedin|g anyway| |00000d80| 2e 5c 6e 22 29 3b 0d 09 | 09 62 72 65 61 6b 3b 0d |.\n");..|.break;.| |00000d90| 09 63 61 73 65 20 63 6c | 75 74 54 79 70 65 3a 0d |.case cl|utType:.| |00000da0| 09 09 62 72 65 61 6b 3b | 0d 09 63 61 73 65 20 64 |..break;|..case d| |00000db0| 69 72 65 63 74 54 79 70 | 65 3a 0d 09 09 70 72 69 |irectTyp|e:...pri| |00000dc0| 6e 74 66 28 22 45 78 63 | 75 73 65 20 6d 65 20 77 |ntf("Exc|use me w| |00000dd0| 68 69 6c 65 20 49 20 63 | 68 61 6e 67 65 20 74 68 |hile I c|hange th| |00000de0| 65 20 70 69 78 65 6c 20 | 64 65 70 74 68 2e 5c 6e |e pixel |depth.\n| |00000df0| 22 29 3b 0d 09 09 65 72 | 72 6f 72 20 3d 20 53 65 |");...er|ror = Se| |00000e00| 74 44 65 70 74 68 28 64 | 65 76 69 63 65 2c 65 69 |tDepth(d|evice,ei| |00000e10| 67 68 74 42 69 74 4d 6f | 64 65 2c 30 2c 30 29 3b |ghtBitMo|de,0,0);| |00000e20| 0d 09 09 69 66 28 65 72 | 72 6f 72 29 65 72 72 6f |...if(er|ror)erro| |00000e30| 72 20 3d 20 53 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|00000fc0| 61 62 6c 65 5b 69 5d 2e | 72 67 62 2e 67 72 65 65 |able[i].|rgb.gree| |00000fd0| 6e 3d 74 61 62 6c 65 5b | 69 5d 2e 72 67 62 2e 62 |n=table[|i].rgb.b| |00000fe0| 6c 75 65 3d 69 2a 28 6c | 6f 6e 67 29 30 78 66 66 |lue=i*(l|ong)0xff| |00000ff0| 66 66 2f 28 63 6f 6c 6f | 72 73 2d 31 29 3b 0d 09 |ff/(colo|rs-1);..| |00001000| 7d 0d 09 73 77 69 74 63 | 68 28 28 2a 64 65 76 69 |}..switc|h((*devi| |00001010| 63 65 29 2d 3e 67 64 54 | 79 70 65 29 7b 0d 09 63 |ce)->gdT|ype){..c| |00001020| 61 73 65 20 66 69 78 65 | 64 54 79 70 65 3a 0d 09 |ase fixe|dType:..| |00001030| 09 62 72 65 61 6b 3b 0d | 09 63 61 73 65 20 63 6c |.break;.|.case cl| |00001040| 75 74 54 79 70 65 3a 0d | 09 09 65 72 72 6f 72 3d |utType:.|..error=| |00001050| 47 44 53 65 74 45 6e 74 | 72 69 65 73 28 64 65 76 |GDSetEnt|ries(dev| |00001060| 69 63 65 2c 30 2c 63 6f | 6c 6f 72 73 2d 31 2c 74 |ice,0,co|lors-1,t| |00001070| 61 62 6c 65 29 3b 0d 09 | 09 62 72 65 61 6b 3b 0d |able);..|.break;.| |00001080| 09 63 61 73 65 20 64 69 | 72 65 63 74 54 79 70 65 |.case di|rectType| |00001090| 3a 0d 09 09 65 72 72 6f | 72 3d 47 44 44 69 72 65 |:...erro|r=GDDire| |000010a0| 63 74 53 65 74 45 6e 74 | 72 69 65 73 28 64 65 76 |ctSetEnt|ries(dev| |000010b0| 69 63 65 2c 30 2c 63 6f | 6c 6f 72 73 2d 31 2c 74 |ice,0,co|lors-1,t| |000010c0| 61 62 6c 65 29 3b 0d 09 | 09 62 72 65 61 6b 3b 0d |able);..|.break;.| |000010d0| 09 7d 0d 09 53 65 74 4d | 6f 75 73 65 28 70 74 29 |.}..SetM|ouse(pt)| |000010e0| 3b 0d 09 77 69 6e 64 6f | 77 3d 47 44 4f 70 65 6e |;..windo|w=GDOpen| |000010f0| 57 69 6e 64 6f 77 31 28 | 64 65 76 69 63 65 29 3b |Window1(|device);| |00001100| 0d 09 53 65 74 50 6f 72 | 74 28 77 69 6e 64 6f 77 |..SetPor|t(window| |00001110| 29 3b 0d 09 50 6d 42 61 | 63 6b 43 6f 6c 6f 72 28 |);..PmBa|ckColor(| |00001120| 28 63 6f 6c 6f 72 73 2d | 31 29 2a 30 2e 35 29 3b |(colors-|1)*0.5);| |00001130| 09 2f 2f 20 54 68 69 73 | 20 77 6f 72 6b 73 20 62 |.// This| works b| |00001140| 65 63 61 75 73 65 20 47 | 44 4f 70 65 6e 57 69 6e |ecause G|DOpenWin| |00001150| 64 6f 77 31 20 6d 61 72 | 6b 65 64 0d 09 45 72 61 |dow1 mar|ked..Era| |00001160| 73 65 52 65 63 74 28 26 | 77 69 6e 64 6f 77 2d 3e |seRect(&|window->| |00001170| 70 6f 72 74 52 65 63 74 | 29 3b 09 2f 2f 20 61 6c |portRect|);.// al| |00001180| 6c 20 74 68 65 20 63 6f | 6c 6f 72 73 20 61 73 20 |l the co|lors as | |00001190| 70 6d 45 78 70 6c 69 63 | 69 74 2e 0d 09 53 65 74 |pmExplic|it...Set| |000011a0| 52 65 63 74 28 26 72 2c | 30 2c 30 2c 53 49 5a 45 |Rect(&r,|0,0,SIZE| |000011b0| 2c 53 49 5a 45 29 3b 0d | 09 43 65 6e 74 65 72 52 |,SIZE);.|.CenterR| |000011c0| 65 63 74 49 6e 52 65 63 | 74 28 26 72 2c 26 77 69 |ectInRec|t(&r,&wi| |000011d0| 6e 64 6f 77 2d 3e 70 6f | 72 74 52 65 63 74 29 3b |ndow->po|rtRect);| |000011e0| 0d 09 66 6f 72 28 69 3d | 30 3b 69 3c 53 49 5a 45 |..for(i=|0;i<SIZE| |000011f0| 3b 69 2b 2b 29 7b 0d 09 | 09 61 3d 28 69 2d 53 49 |;i++){..|.a=(i-SI| |00001200| 5a 45 2f 32 29 2f 28 53 | 49 5a 45 2f 36 2e 29 3b |ZE/2)/(S|IZE/6.);| |00001210| 0d 09 09 66 59 5b 69 5d | 3d 65 78 70 28 2d 61 2a |...fY[i]|=exp(-a*| |00001220| 61 29 3b 0d 09 09 66 58 | 5b 69 5d 3d 66 59 5b 69 |a);...fX|[i]=fY[i| |00001230| 5d 2a 73 69 6e 28 28 69 | 2d 53 49 5a 45 2f 32 29 |]*sin((i|-SIZE/2)| |00001240| 2a 28 32 2e 30 2a 50 49 | 2f 38 30 2e 30 29 29 3b |*(2.0*PI|/80.0));| |00001250| 0d 09 7d 0d 09 66 6f 72 | 28 6a 3d 30 3b 6a 3c 53 |..}..for|(j=0;j<S| |00001260| 49 5a 45 3b 6a 2b 2b 29 | 7b 0d 09 09 75 6e 73 69 |IZE;j++)|{...unsi| |00001270| 67 6e 65 64 20 6c 6f 6e | 67 20 72 6f 77 5b 53 49 |gned lon|g row[SI| |00001280| 5a 45 5d 3b 0d 09 09 66 | 6f 72 28 69 3d 30 3b 69 |ZE];...f|or(i=0;i| |00001290| 3c 53 49 5a 45 3b 69 2b | 2b 29 20 72 6f 77 5b 69 |<SIZE;i+|+) row[i| |000012a0| 5d 3d 30 2e 35 2b 28 63 | 6f 6c 6f 72 73 2d 31 29 |]=0.5+(c|olors-1)| |000012b0| 2a 30 2e 35 2a 28 31 2e | 30 2b 66 59 5b 6a 5d 2a |*0.5*(1.|0+fY[j]*| |000012c0| 66 58 5b 69 5d 29 3b 0d | 09 09 53 65 74 50 69 78 |fX[i]);.|..SetPix| |000012d0| 65 6c 73 51 75 69 63 6b | 6c 79 28 72 2e 6c 65 66 |elsQuick|ly(r.lef| |000012e0| 74 2c 6a 2b 72 2e 74 6f | 70 2c 72 6f 77 2c 53 49 |t,j+r.to|p,row,SI| |000012f0| 5a 45 29 3b 0d 09 7d 0d | 09 70 72 69 6e 74 66 28 |ZE);..}.|.printf(| |00001300| 22 44 6f 6e 65 2e 20 48 | 69 74 20 72 65 74 75 72 |"Done. 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