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/*
Copyright (c) 2004-2011, The Dojo Foundation All Rights Reserved.
Available via Academic Free License >= 2.1 OR the modified BSD license.
see: http://dojotoolkit.org/license for details
*/
if(!dojo._hasResource["dojox.charting.scaler.primitive"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojox.charting.scaler.primitive"] = true;
dojo.provide("dojox.charting.scaler.primitive");
dojox.charting.scaler.primitive = {
buildScaler: function(/*Number*/ min, /*Number*/ max, /*Number*/ span, /*Object*/ kwArgs){
if(min == max){
// artificially extend bounds
min -= 0.5;
max += 0.5;
// now the line will be centered
}
return {
bounds: {
lower: min,
upper: max,
from: min,
to: max,
scale: span / (max - min),
span: span
},
scaler: dojox.charting.scaler.primitive
};
},
buildTicks: function(/*Object*/ scaler, /*Object*/ kwArgs){
return {major: [], minor: [], micro: []}; // Object
},
getTransformerFromModel: function(/*Object*/ scaler){
var offset = scaler.bounds.from, scale = scaler.bounds.scale;
return function(x){ return (x - offset) * scale; }; // Function
},
getTransformerFromPlot: function(/*Object*/ scaler){
var offset = scaler.bounds.from, scale = scaler.bounds.scale;
return function(x){ return x / scale + offset; }; // Function
}
};
}
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