root / trunk / web / dojo / dojox / charting / scaler / linear.js
History | View | Annotate | Download (5.3 KB)
| 1 |
/*
|
|---|---|
| 2 |
Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
|
| 3 |
Available via Academic Free License >= 2.1 OR the modified BSD license.
|
| 4 |
see: http://dojotoolkit.org/license for details
|
| 5 |
*/
|
| 6 |
|
| 7 |
|
| 8 |
if(!dojo._hasResource["dojox.charting.scaler.linear"]){ |
| 9 |
dojo._hasResource["dojox.charting.scaler.linear"]=true; |
| 10 |
dojo.provide("dojox.charting.scaler.linear");
|
| 11 |
dojo.require("dojox.charting.scaler.common");
|
| 12 |
(function(){
|
| 13 |
var _1=3,dc=dojox.charting,_2=dc.scaler,_3=_2.common,_4=_3.findString,_5=_3.getNumericLabel; |
| 14 |
var _6=function(_7,_8,_9,_a,_b,_c,_d){ |
| 15 |
_9=dojo.delegate(_9); |
| 16 |
if(!_a){
|
| 17 |
if(_9.fixUpper=="major"){ |
| 18 |
_9.fixUpper="minor";
|
| 19 |
} |
| 20 |
if(_9.fixLower=="major"){ |
| 21 |
_9.fixLower="minor";
|
| 22 |
} |
| 23 |
} |
| 24 |
if(!_b){
|
| 25 |
if(_9.fixUpper=="minor"){ |
| 26 |
_9.fixUpper="micro";
|
| 27 |
} |
| 28 |
if(_9.fixLower=="minor"){ |
| 29 |
_9.fixLower="micro";
|
| 30 |
} |
| 31 |
} |
| 32 |
if(!_c){
|
| 33 |
if(_9.fixUpper=="micro"){ |
| 34 |
_9.fixUpper="none";
|
| 35 |
} |
| 36 |
if(_9.fixLower=="micro"){ |
| 37 |
_9.fixLower="none";
|
| 38 |
} |
| 39 |
} |
| 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; |
| 41 |
if(_9.useMin){
|
| 42 |
_7=_e; |
| 43 |
} |
| 44 |
if(_9.useMax){
|
| 45 |
_8=_f; |
| 46 |
} |
| 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); |
| 48 |
if(!isFinite(_1a)){
|
| 49 |
_1a=1;
|
| 50 |
} |
| 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}; |
| 52 |
}; |
| 53 |
dojo.mixin(dojox.charting.scaler.linear,{buildScaler:function(min,max,_1b,_1c){
|
| 54 |
var h={fixUpper:"none",fixLower:"none",natural:false}; |
| 55 |
if(_1c){
|
| 56 |
if("fixUpper" in _1c){ |
| 57 |
h.fixUpper=String(_1c.fixUpper); |
| 58 |
} |
| 59 |
if("fixLower" in _1c){ |
| 60 |
h.fixLower=String(_1c.fixLower); |
| 61 |
} |
| 62 |
if("natural" in _1c){ |
| 63 |
h.natural=Boolean(_1c.natural); |
| 64 |
} |
| 65 |
} |
| 66 |
if("min" in _1c){ |
| 67 |
min=_1c.min; |
| 68 |
} |
| 69 |
if("max" in _1c){ |
| 70 |
max=_1c.max; |
| 71 |
} |
| 72 |
if(_1c.includeZero){
|
| 73 |
if(min>0){ |
| 74 |
min=0;
|
| 75 |
} |
| 76 |
if(max<0){ |
| 77 |
max=0;
|
| 78 |
} |
| 79 |
} |
| 80 |
h.min=min; |
| 81 |
h.useMin=true;
|
| 82 |
h.max=max; |
| 83 |
h.useMax=true;
|
| 84 |
if("from" in _1c){ |
| 85 |
min=_1c.from; |
| 86 |
h.useMin=false;
|
| 87 |
} |
| 88 |
if("to" in _1c){ |
| 89 |
max=_1c.to; |
| 90 |
h.useMax=false;
|
| 91 |
} |
| 92 |
if(max<=min){
|
| 93 |
return _6(min,max,h,0,0,0,_1b); |
| 94 |
} |
| 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; |
| 96 |
if(_1c&&("minorTickStep" in _1c)){ |
| 97 |
_1e=_1c.minorTickStep; |
| 98 |
}else{
|
| 99 |
do{
|
| 100 |
_1e=_1d/10;
|
| 101 |
if(!h.natural||_1e>0.9){ |
| 102 |
_20=_6(min,max,h,_1d,_1e,0,_1b);
|
| 103 |
if(_20.bounds.scale*_20.minor.tick>_1){
|
| 104 |
break;
|
| 105 |
} |
| 106 |
} |
| 107 |
_1e=_1d/5;
|
| 108 |
if(!h.natural||_1e>0.9){ |
| 109 |
_20=_6(min,max,h,_1d,_1e,0,_1b);
|
| 110 |
if(_20.bounds.scale*_20.minor.tick>_1){
|
| 111 |
break;
|
| 112 |
} |
| 113 |
} |
| 114 |
_1e=_1d/2;
|
| 115 |
if(!h.natural||_1e>0.9){ |
| 116 |
_20=_6(min,max,h,_1d,_1e,0,_1b);
|
| 117 |
if(_20.bounds.scale*_20.minor.tick>_1){
|
| 118 |
break;
|
| 119 |
} |
| 120 |
} |
| 121 |
return _6(min,max,h,_1d,0,0,_1b); |
| 122 |
}while(false); |
| 123 |
} |
| 124 |
if(_1c&&("microTickStep" in _1c)){ |
| 125 |
_1f=_1c.microTickStep; |
| 126 |
_20=_6(min,max,h,_1d,_1e,_1f,_1b); |
| 127 |
}else{
|
| 128 |
do{
|
| 129 |
_1f=_1e/10;
|
| 130 |
if(!h.natural||_1f>0.9){ |
| 131 |
_20=_6(min,max,h,_1d,_1e,_1f,_1b); |
| 132 |
if(_20.bounds.scale*_20.micro.tick>_1){
|
| 133 |
break;
|
| 134 |
} |
| 135 |
} |
| 136 |
_1f=_1e/5;
|
| 137 |
if(!h.natural||_1f>0.9){ |
| 138 |
_20=_6(min,max,h,_1d,_1e,_1f,_1b); |
| 139 |
if(_20.bounds.scale*_20.micro.tick>_1){
|
| 140 |
break;
|
| 141 |
} |
| 142 |
} |
| 143 |
_1f=_1e/2;
|
| 144 |
if(!h.natural||_1f>0.9){ |
| 145 |
_20=_6(min,max,h,_1d,_1e,_1f,_1b); |
| 146 |
if(_20.bounds.scale*_20.micro.tick>_1){
|
| 147 |
break;
|
| 148 |
} |
| 149 |
} |
| 150 |
_1f=0;
|
| 151 |
}while(false); |
| 152 |
} |
| 153 |
return _1f?_20:_6(min,max,h,_1d,_1e,0,_1b); |
| 154 |
},buildTicks:function(_21,_22){ |
| 155 |
var _23,_24,_25,_26=_21.major.start,_27=_21.minor.start,_28=_21.micro.start;
|
| 156 |
if(_22.microTicks&&_21.micro.tick){
|
| 157 |
_23=_21.micro.tick,_24=_28; |
| 158 |
}else{
|
| 159 |
if(_22.minorTicks&&_21.minor.tick){
|
| 160 |
_23=_21.minor.tick,_24=_27; |
| 161 |
}else{
|
| 162 |
if(_21.major.tick){
|
| 163 |
_23=_21.major.tick,_24=_26; |
| 164 |
}else{
|
| 165 |
return null; |
| 166 |
} |
| 167 |
} |
| 168 |
} |
| 169 |
var _29=1/_21.bounds.scale; |
| 170 |
if(_21.bounds.to<=_21.bounds.from||isNaN(_29)||!isFinite(_29)||_23<=0||isNaN(_23)||!isFinite(_23)){ |
| 171 |
return null; |
| 172 |
} |
| 173 |
var _2a=[],_2b=[],_2c=[];
|
| 174 |
while(_24<=_21.bounds.to+_29){
|
| 175 |
if(Math.abs(_26-_24)<_23/2){ |
| 176 |
_25={value:_26};
|
| 177 |
if(_22.majorLabels){
|
| 178 |
_25.label=_5(_26,_21.major.prec,_22); |
| 179 |
} |
| 180 |
_2a.push(_25); |
| 181 |
_26+=_21.major.tick; |
| 182 |
_27+=_21.minor.tick; |
| 183 |
_28+=_21.micro.tick; |
| 184 |
}else{
|
| 185 |
if(Math.abs(_27-_24)<_23/2){ |
| 186 |
if(_22.minorTicks){
|
| 187 |
_25={value:_27};
|
| 188 |
if(_22.minorLabels&&(_21.minMinorStep<=_21.minor.tick*_21.bounds.scale)){
|
| 189 |
_25.label=_5(_27,_21.minor.prec,_22); |
| 190 |
} |
| 191 |
_2b.push(_25); |
| 192 |
} |
| 193 |
_27+=_21.minor.tick; |
| 194 |
_28+=_21.micro.tick; |
| 195 |
}else{
|
| 196 |
if(_22.microTicks){
|
| 197 |
_2c.push({value:_28});
|
| 198 |
} |
| 199 |
_28+=_21.micro.tick; |
| 200 |
} |
| 201 |
} |
| 202 |
_24+=_23; |
| 203 |
} |
| 204 |
return {major:_2a,minor:_2b,micro:_2c}; |
| 205 |
},getTransformerFromModel:function(_2d){ |
| 206 |
var _2e=_2d.bounds.from,_2f=_2d.bounds.scale;
|
| 207 |
return function(x){ |
| 208 |
return (x-_2e)*_2f;
|
| 209 |
}; |
| 210 |
},getTransformerFromPlot:function(_30){ |
| 211 |
var _31=_30.bounds.from,_32=_30.bounds.scale;
|
| 212 |
return function(x){ |
| 213 |
return x/_32+_31;
|
| 214 |
}; |
| 215 |
}}); |
| 216 |
})(); |
| 217 |
} |