root / trunk / web / dojo / dojox / charting / scaler / linear.js @ 13
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| 1 | 9 | andrej.cim | /*
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| 2 | Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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| 3 | Available via Academic Free License >= 2.1 OR the modified BSD license.
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| 4 | see: http://dojotoolkit.org/license for details
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| 5 | */
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| 6 | |||
| 7 | |||
| 8 | if(!dojo._hasResource["dojox.charting.scaler.linear"]){ |
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| 9 | dojo._hasResource["dojox.charting.scaler.linear"]=true; |
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| 10 | dojo.provide("dojox.charting.scaler.linear");
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| 11 | dojo.require("dojox.charting.scaler.common");
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| 12 | (function(){
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| 13 | var _1=3,dc=dojox.charting,_2=dc.scaler,_3=_2.common,_4=_3.findString,_5=_3.getNumericLabel; |
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| 14 | var _6=function(_7,_8,_9,_a,_b,_c,_d){ |
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| 15 | _9=dojo.delegate(_9); |
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| 16 | if(!_a){
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| 17 | if(_9.fixUpper=="major"){ |
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| 18 | _9.fixUpper="minor";
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| 19 | } |
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| 20 | if(_9.fixLower=="major"){ |
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| 21 | _9.fixLower="minor";
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| 22 | } |
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| 23 | } |
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| 24 | if(!_b){
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| 25 | if(_9.fixUpper=="minor"){ |
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| 26 | _9.fixUpper="micro";
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| 27 | } |
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| 28 | if(_9.fixLower=="minor"){ |
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| 29 | _9.fixLower="micro";
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| 30 | } |
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| 31 | } |
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| 32 | if(!_c){
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| 33 | if(_9.fixUpper=="micro"){ |
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| 34 | _9.fixUpper="none";
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| 35 | } |
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| 36 | if(_9.fixLower=="micro"){ |
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| 37 | _9.fixLower="none";
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| 38 | } |
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| 39 | } |
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| 40 | var _e=_4(_9.fixLower,["major"])?Math.floor(_9.min/_a)*_a:_4(_9.fixLower,["minor"])?Math.floor(_9.min/_b)*_b:_4(_9.fixLower,["micro"])?Math.floor(_9.min/_c)*_c:_9.min,_f=_4(_9.fixUpper,["major"])?Math.ceil(_9.max/_a)*_a:_4(_9.fixUpper,["minor"])?Math.ceil(_9.max/_b)*_b:_4(_9.fixUpper,["micro"])?Math.ceil(_9.max/_c)*_c:_9.max; |
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| 41 | if(_9.useMin){
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| 42 | _7=_e; |
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| 43 | } |
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| 44 | if(_9.useMax){
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| 45 | _8=_f; |
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| 46 | } |
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| 47 | var _10=(!_a||_9.useMin&&_4(_9.fixLower,["major"]))?_7:Math.ceil(_7/_a)*_a,_11=(!_b||_9.useMin&&_4(_9.fixLower,["major","minor"]))?_7:Math.ceil(_7/_b)*_b,_12=(!_c||_9.useMin&&_4(_9.fixLower,["major","minor","micro"]))?_7:Math.ceil(_7/_c)*_c,_13=!_a?0:(_9.useMax&&_4(_9.fixUpper,["major"])?Math.round((_8-_10)/_a):Math.floor((_8-_10)/_a))+1,_14=!_b?0:(_9.useMax&&_4(_9.fixUpper,["major","minor"])?Math.round((_8-_11)/_b):Math.floor((_8-_11)/_b))+1,_15=!_c?0:(_9.useMax&&_4(_9.fixUpper,["major","minor","micro"])?Math.round((_8-_12)/_c):Math.floor((_8-_12)/_c))+1,_16=_b?Math.round(_a/_b):0,_17=_c?Math.round(_b/_c):0,_18=_a?Math.floor(Math.log(_a)/Math.LN10):0,_19=_b?Math.floor(Math.log(_b)/Math.LN10):0,_1a=_d/(_8-_7); |
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| 48 | if(!isFinite(_1a)){
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| 49 | _1a=1;
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| 50 | } |
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| 51 | return {bounds:{lower:_e,upper:_f,from:_7,to:_8,scale:_1a,span:_d},major:{tick:_a,start:_10,count:_13,prec:_18},minor:{tick:_b,start:_11,count:_14,prec:_19},micro:{tick:_c,start:_12,count:_15,prec:0},minorPerMajor:_16,microPerMinor:_17,scaler:_2.linear}; |
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| 52 | }; |
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| 53 | dojo.mixin(dojox.charting.scaler.linear,{buildScaler:function(min,max,_1b,_1c){
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| 54 | var h={fixUpper:"none",fixLower:"none",natural:false}; |
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| 55 | if(_1c){
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| 56 | if("fixUpper" in _1c){ |
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| 57 | h.fixUpper=String(_1c.fixUpper); |
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| 58 | } |
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| 59 | if("fixLower" in _1c){ |
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| 60 | h.fixLower=String(_1c.fixLower); |
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| 61 | } |
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| 62 | if("natural" in _1c){ |
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| 63 | h.natural=Boolean(_1c.natural); |
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| 64 | } |
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| 65 | } |
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| 66 | if("min" in _1c){ |
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| 67 | min=_1c.min; |
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| 68 | } |
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| 69 | if("max" in _1c){ |
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| 70 | max=_1c.max; |
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| 71 | } |
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| 72 | if(_1c.includeZero){
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| 73 | if(min>0){ |
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| 74 | min=0;
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| 75 | } |
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| 76 | if(max<0){ |
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| 77 | max=0;
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| 78 | } |
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| 79 | } |
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| 80 | h.min=min; |
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| 81 | h.useMin=true;
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| 82 | h.max=max; |
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| 83 | h.useMax=true;
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| 84 | if("from" in _1c){ |
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| 85 | min=_1c.from; |
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| 86 | h.useMin=false;
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| 87 | } |
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| 88 | if("to" in _1c){ |
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| 89 | max=_1c.to; |
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| 90 | h.useMax=false;
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| 91 | } |
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| 92 | if(max<=min){
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| 93 | return _6(min,max,h,0,0,0,_1b); |
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| 94 | } |
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| 95 | var mag=Math.floor(Math.log(max-min)/Math.LN10),_1d=_1c&&("majorTickStep" in _1c)?_1c.majorTickStep:Math.pow(10,mag),_1e=0,_1f=0,_20; |
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| 96 | if(_1c&&("minorTickStep" in _1c)){ |
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| 97 | _1e=_1c.minorTickStep; |
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| 98 | }else{
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| 99 | do{
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| 100 | _1e=_1d/10;
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| 101 | if(!h.natural||_1e>0.9){ |
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| 102 | _20=_6(min,max,h,_1d,_1e,0,_1b);
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| 103 | if(_20.bounds.scale*_20.minor.tick>_1){
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| 104 | break;
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| 105 | } |
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| 106 | } |
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| 107 | _1e=_1d/5;
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| 108 | if(!h.natural||_1e>0.9){ |
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| 109 | _20=_6(min,max,h,_1d,_1e,0,_1b);
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| 110 | if(_20.bounds.scale*_20.minor.tick>_1){
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| 111 | break;
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| 112 | } |
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| 113 | } |
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| 114 | _1e=_1d/2;
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| 115 | if(!h.natural||_1e>0.9){ |
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| 116 | _20=_6(min,max,h,_1d,_1e,0,_1b);
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| 117 | if(_20.bounds.scale*_20.minor.tick>_1){
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| 118 | break;
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| 119 | } |
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| 120 | } |
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| 121 | return _6(min,max,h,_1d,0,0,_1b); |
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| 122 | }while(false); |
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| 123 | } |
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| 124 | if(_1c&&("microTickStep" in _1c)){ |
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| 125 | _1f=_1c.microTickStep; |
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| 126 | _20=_6(min,max,h,_1d,_1e,_1f,_1b); |
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| 127 | }else{
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| 128 | do{
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| 129 | _1f=_1e/10;
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| 130 | if(!h.natural||_1f>0.9){ |
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| 131 | _20=_6(min,max,h,_1d,_1e,_1f,_1b); |
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| 132 | if(_20.bounds.scale*_20.micro.tick>_1){
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| 133 | break;
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| 134 | } |
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| 135 | } |
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| 136 | _1f=_1e/5;
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| 137 | if(!h.natural||_1f>0.9){ |
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| 138 | _20=_6(min,max,h,_1d,_1e,_1f,_1b); |
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| 139 | if(_20.bounds.scale*_20.micro.tick>_1){
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| 140 | break;
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| 141 | } |
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| 142 | } |
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| 143 | _1f=_1e/2;
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| 144 | if(!h.natural||_1f>0.9){ |
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| 145 | _20=_6(min,max,h,_1d,_1e,_1f,_1b); |
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| 146 | if(_20.bounds.scale*_20.micro.tick>_1){
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| 147 | break;
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| 148 | } |
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| 149 | } |
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| 150 | _1f=0;
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| 151 | }while(false); |
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| 152 | } |
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| 153 | return _1f?_20:_6(min,max,h,_1d,_1e,0,_1b); |
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| 154 | },buildTicks:function(_21,_22){ |
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| 155 | var _23,_24,_25,_26=_21.major.start,_27=_21.minor.start,_28=_21.micro.start;
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| 156 | if(_22.microTicks&&_21.micro.tick){
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| 157 | _23=_21.micro.tick,_24=_28; |
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| 158 | }else{
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| 159 | if(_22.minorTicks&&_21.minor.tick){
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| 160 | _23=_21.minor.tick,_24=_27; |
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| 161 | }else{
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| 162 | if(_21.major.tick){
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| 163 | _23=_21.major.tick,_24=_26; |
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| 164 | }else{
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| 165 | return null; |
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| 166 | } |
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| 167 | } |
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| 168 | } |
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| 169 | var _29=1/_21.bounds.scale; |
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| 170 | if(_21.bounds.to<=_21.bounds.from||isNaN(_29)||!isFinite(_29)||_23<=0||isNaN(_23)||!isFinite(_23)){ |
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| 171 | return null; |
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| 172 | } |
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| 173 | var _2a=[],_2b=[],_2c=[];
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| 174 | while(_24<=_21.bounds.to+_29){
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| 175 | if(Math.abs(_26-_24)<_23/2){ |
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| 176 | _25={value:_26};
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| 177 | if(_22.majorLabels){
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| 178 | _25.label=_5(_26,_21.major.prec,_22); |
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| 179 | } |
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| 180 | _2a.push(_25); |
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| 181 | _26+=_21.major.tick; |
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| 182 | _27+=_21.minor.tick; |
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| 183 | _28+=_21.micro.tick; |
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| 184 | }else{
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| 185 | if(Math.abs(_27-_24)<_23/2){ |
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| 186 | if(_22.minorTicks){
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| 187 | _25={value:_27};
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| 188 | if(_22.minorLabels&&(_21.minMinorStep<=_21.minor.tick*_21.bounds.scale)){
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| 189 | _25.label=_5(_27,_21.minor.prec,_22); |
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| 190 | } |
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| 191 | _2b.push(_25); |
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| 192 | } |
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| 193 | _27+=_21.minor.tick; |
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| 194 | _28+=_21.micro.tick; |
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| 195 | }else{
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| 196 | if(_22.microTicks){
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| 197 | _2c.push({value:_28});
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| 198 | } |
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| 199 | _28+=_21.micro.tick; |
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| 200 | } |
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| 201 | } |
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| 202 | _24+=_23; |
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| 203 | } |
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| 204 | return {major:_2a,minor:_2b,micro:_2c}; |
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| 205 | },getTransformerFromModel:function(_2d){ |
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| 206 | var _2e=_2d.bounds.from,_2f=_2d.bounds.scale;
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| 207 | return function(x){ |
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| 208 | return (x-_2e)*_2f;
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| 209 | }; |
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| 210 | },getTransformerFromPlot:function(_30){ |
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| 211 | var _31=_30.bounds.from,_32=_30.bounds.scale;
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| 212 | return function(x){ |
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| 213 | return x/_32+_31;
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| 214 | }; |
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| 215 | }}); |
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| 216 | })(); |
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| 217 | } |