root / trunk / web / dojo / dojox / charting / scaler / linear.js @ 13
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/*
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Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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Available via Academic Free License >= 2.1 OR the modified BSD license.
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see: http://dojotoolkit.org/license for details
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*/
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if(!dojo._hasResource["dojox.charting.scaler.linear"]){ |
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dojo._hasResource["dojox.charting.scaler.linear"]=true; |
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dojo.provide("dojox.charting.scaler.linear");
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dojo.require("dojox.charting.scaler.common");
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(function(){
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var _1=3,dc=dojox.charting,_2=dc.scaler,_3=_2.common,_4=_3.findString,_5=_3.getNumericLabel; |
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var _6=function(_7,_8,_9,_a,_b,_c,_d){ |
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_9=dojo.delegate(_9); |
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if(!_a){
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if(_9.fixUpper=="major"){ |
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_9.fixUpper="minor";
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} |
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if(_9.fixLower=="major"){ |
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_9.fixLower="minor";
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} |
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} |
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if(!_b){
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if(_9.fixUpper=="minor"){ |
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_9.fixUpper="micro";
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} |
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if(_9.fixLower=="minor"){ |
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_9.fixLower="micro";
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} |
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} |
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if(!_c){
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if(_9.fixUpper=="micro"){ |
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_9.fixUpper="none";
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} |
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if(_9.fixLower=="micro"){ |
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_9.fixLower="none";
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} |
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} |
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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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if(_9.useMin){
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_7=_e; |
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} |
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if(_9.useMax){
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_8=_f; |
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} |
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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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if(!isFinite(_1a)){
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_1a=1;
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} |
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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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}; |
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dojo.mixin(dojox.charting.scaler.linear,{buildScaler:function(min,max,_1b,_1c){
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var h={fixUpper:"none",fixLower:"none",natural:false}; |
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if(_1c){
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if("fixUpper" in _1c){ |
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h.fixUpper=String(_1c.fixUpper); |
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} |
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if("fixLower" in _1c){ |
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h.fixLower=String(_1c.fixLower); |
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} |
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if("natural" in _1c){ |
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h.natural=Boolean(_1c.natural); |
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} |
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} |
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if("min" in _1c){ |
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min=_1c.min; |
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} |
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if("max" in _1c){ |
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max=_1c.max; |
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} |
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if(_1c.includeZero){
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if(min>0){ |
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min=0;
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} |
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if(max<0){ |
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max=0;
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} |
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} |
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h.min=min; |
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h.useMin=true;
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h.max=max; |
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h.useMax=true;
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if("from" in _1c){ |
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min=_1c.from; |
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h.useMin=false;
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} |
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if("to" in _1c){ |
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max=_1c.to; |
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h.useMax=false;
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} |
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if(max<=min){
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return _6(min,max,h,0,0,0,_1b); |
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} |
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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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if(_1c&&("minorTickStep" in _1c)){ |
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_1e=_1c.minorTickStep; |
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}else{
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do{
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_1e=_1d/10;
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if(!h.natural||_1e>0.9){ |
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_20=_6(min,max,h,_1d,_1e,0,_1b);
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if(_20.bounds.scale*_20.minor.tick>_1){
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break;
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} |
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} |
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_1e=_1d/5;
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if(!h.natural||_1e>0.9){ |
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_20=_6(min,max,h,_1d,_1e,0,_1b);
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if(_20.bounds.scale*_20.minor.tick>_1){
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break;
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} |
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} |
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_1e=_1d/2;
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if(!h.natural||_1e>0.9){ |
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_20=_6(min,max,h,_1d,_1e,0,_1b);
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if(_20.bounds.scale*_20.minor.tick>_1){
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break;
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} |
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} |
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return _6(min,max,h,_1d,0,0,_1b); |
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}while(false); |
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} |
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if(_1c&&("microTickStep" in _1c)){ |
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_1f=_1c.microTickStep; |
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_20=_6(min,max,h,_1d,_1e,_1f,_1b); |
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}else{
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do{
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_1f=_1e/10;
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if(!h.natural||_1f>0.9){ |
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_20=_6(min,max,h,_1d,_1e,_1f,_1b); |
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if(_20.bounds.scale*_20.micro.tick>_1){
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break;
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} |
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} |
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_1f=_1e/5;
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if(!h.natural||_1f>0.9){ |
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_20=_6(min,max,h,_1d,_1e,_1f,_1b); |
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if(_20.bounds.scale*_20.micro.tick>_1){
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break;
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} |
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} |
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_1f=_1e/2;
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if(!h.natural||_1f>0.9){ |
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_20=_6(min,max,h,_1d,_1e,_1f,_1b); |
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if(_20.bounds.scale*_20.micro.tick>_1){
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break;
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} |
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} |
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_1f=0;
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}while(false); |
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} |
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return _1f?_20:_6(min,max,h,_1d,_1e,0,_1b); |
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},buildTicks:function(_21,_22){ |
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var _23,_24,_25,_26=_21.major.start,_27=_21.minor.start,_28=_21.micro.start;
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if(_22.microTicks&&_21.micro.tick){
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_23=_21.micro.tick,_24=_28; |
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}else{
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if(_22.minorTicks&&_21.minor.tick){
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_23=_21.minor.tick,_24=_27; |
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}else{
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if(_21.major.tick){
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_23=_21.major.tick,_24=_26; |
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}else{
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return null; |
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} |
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} |
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} |
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var _29=1/_21.bounds.scale; |
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if(_21.bounds.to<=_21.bounds.from||isNaN(_29)||!isFinite(_29)||_23<=0||isNaN(_23)||!isFinite(_23)){ |
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return null; |
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} |
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var _2a=[],_2b=[],_2c=[];
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while(_24<=_21.bounds.to+_29){
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if(Math.abs(_26-_24)<_23/2){ |
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_25={value:_26};
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if(_22.majorLabels){
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_25.label=_5(_26,_21.major.prec,_22); |
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} |
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_2a.push(_25); |
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_26+=_21.major.tick; |
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_27+=_21.minor.tick; |
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_28+=_21.micro.tick; |
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}else{
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if(Math.abs(_27-_24)<_23/2){ |
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if(_22.minorTicks){
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_25={value:_27};
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if(_22.minorLabels&&(_21.minMinorStep<=_21.minor.tick*_21.bounds.scale)){
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_25.label=_5(_27,_21.minor.prec,_22); |
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} |
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_2b.push(_25); |
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} |
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_27+=_21.minor.tick; |
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_28+=_21.micro.tick; |
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}else{
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if(_22.microTicks){
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_2c.push({value:_28});
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} |
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_28+=_21.micro.tick; |
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} |
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} |
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_24+=_23; |
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} |
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return {major:_2a,minor:_2b,micro:_2c}; |
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},getTransformerFromModel:function(_2d){ |
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var _2e=_2d.bounds.from,_2f=_2d.bounds.scale;
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return function(x){ |
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return (x-_2e)*_2f;
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}; |
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},getTransformerFromPlot:function(_30){ |
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var _31=_30.bounds.from,_32=_30.bounds.scale;
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return function(x){ |
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return x/_32+_31;
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}; |
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}}); |
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})(); |
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} |