+++ /dev/null
-nv.models.axis = function() {
- "use strict";
- //============================================================
- // Public Variables with Default Settings
- //------------------------------------------------------------
-
- var axis = d3.svg.axis()
- ;
-
- var margin = {top: 0, right: 0, bottom: 0, left: 0}
- , width = 75 //only used for tickLabel currently
- , height = 60 //only used for tickLabel currently
- , scale = d3.scale.linear()
- , axisLabelText = null
- , showMaxMin = true //TODO: showMaxMin should be disabled on all ordinal scaled axes
- , highlightZero = true
- , rotateLabels = 0
- , rotateYLabel = true
- , staggerLabels = false
- , isOrdinal = false
- , ticks = null
- , logScale = false
- , axisLabelDistance = 12 //The larger this number is, the closer the axis label is to the axis.
- ;
-
- axis
- .scale(scale)
- .orient('bottom')
- .tickFormat(function(d) { return d })
- ;
-
- //============================================================
-
-
- //============================================================
- // Private Variables
- //------------------------------------------------------------
-
- var scale0;
-
- //============================================================
-
-
- function chart(selection) {
- selection.each(function(data) {
- var container = d3.select(this);
-
-
- //------------------------------------------------------------
- // Setup containers and skeleton of chart
-
- var wrap = container.selectAll('g.nv-wrap.nv-axis').data([data]);
- var wrapEnter = wrap.enter().append('g').attr('class', 'nvd3 nv-wrap nv-axis');
- var gEnter = wrapEnter.append('g');
- var g = wrap.select('g')
-
- //------------------------------------------------------------
-
-
- if (ticks !== null)
- axis.ticks(ticks);
- else if (axis.orient() == 'top' || axis.orient() == 'bottom')
- axis.ticks(Math.abs(scale.range()[1] - scale.range()[0]) / 100);
-
-
- //TODO: consider calculating width/height based on whether or not label is added, for reference in charts using this component
-
-
- g.transition().call(axis);
-
- scale0 = scale0 || axis.scale();
-
- var fmt = axis.tickFormat();
- if (fmt == null) {
- fmt = scale0.tickFormat();
- }
-
- var axisLabel = g.selectAll('text.nv-axislabel')
- .data([axisLabelText || null]);
- axisLabel.exit().remove();
- switch (axis.orient()) {
- case 'top':
- axisLabel.enter().append('text').attr('class', 'nv-axislabel');
- var w = (scale.range().length==2) ? scale.range()[1] : (scale.range()[scale.range().length-1]+(scale.range()[1]-scale.range()[0]));
- axisLabel
- .attr('text-anchor', 'middle')
- .attr('y', 0)
- .attr('x', w/2);
- if (showMaxMin) {
- var axisMaxMin = wrap.selectAll('g.nv-axisMaxMin')
- .data(scale.domain());
- axisMaxMin.enter().append('g').attr('class', 'nv-axisMaxMin').append('text');
- axisMaxMin.exit().remove();
- axisMaxMin
- .attr('transform', function(d,i) {
- return 'translate(' + scale(d) + ',0)'
- })
- .select('text')
- .attr('dy', '0em')
- .attr('y', -axis.tickPadding())
- .attr('text-anchor', 'middle')
- .text(function(d,i) {
- //var v = fmt(d);
- var v = d;
- if(logScale) {
- v = Math.pow(10,v);
- v = fmt(v);
- //fmt = d3.format(',.2f');
- //v = fmt(v);
- } else
- v = fmt(v);
- return ('' + v).match('NaN') ? '' : v;
- });
- axisMaxMin.transition()
- .attr('transform', function(d,i) {
- return 'translate(' + scale.range()[i] + ',0)'
- });
- }
- break;
- case 'bottom':
- var xLabelMargin = 36;
- var maxTextWidth = 30;
- var xTicks = g.selectAll('g').select("text");
- if (rotateLabels%360) {
- //Calculate the longest xTick width
- xTicks.each(function(d,i){
- var width = this.getBBox().width;
- if(width > maxTextWidth) maxTextWidth = width;
- });
- //Convert to radians before calculating sin. Add 30 to margin for healthy padding.
- var sin = Math.abs(Math.sin(rotateLabels*Math.PI/180));
- var xLabelMargin = (sin ? sin*maxTextWidth : maxTextWidth)+30;
- //Rotate all xTicks
- xTicks
- .attr('transform', function(d,i,j) { return 'rotate(' + rotateLabels + ' 0,0)' })
- .style('text-anchor', rotateLabels%360 > 0 ? 'start' : 'end');
- }
- axisLabel.enter().append('text').attr('class', 'nv-axislabel');
- var w = (scale.range().length==2) ? scale.range()[1] : (scale.range()[scale.range().length-1]+(scale.range()[1]-scale.range()[0]));
- axisLabel
- .attr('text-anchor', 'middle')
- .attr('y', xLabelMargin)
- .attr('x', w/2);
- if (showMaxMin) {
- //if (showMaxMin && !isOrdinal) {
- var axisMaxMin = wrap.selectAll('g.nv-axisMaxMin')
- //.data(scale.domain())
- .data([scale.domain()[0], scale.domain()[scale.domain().length - 1]]);
- axisMaxMin.enter().append('g').attr('class', 'nv-axisMaxMin').append('text');
- axisMaxMin.exit().remove();
- axisMaxMin
- .attr('transform', function(d,i) {
- return 'translate(' + (scale(d) + (isOrdinal ? scale.rangeBand() / 2 : 0)) + ',0)'
- })
- .select('text')
- .attr('dy', '.71em')
- .attr('y', axis.tickPadding())
- .attr('transform', function(d,i,j) { return 'rotate(' + rotateLabels + ' 0,0)' })
- .style('text-anchor', rotateLabels ? (rotateLabels%360 > 0 ? 'start' : 'end') : 'middle')
- .text(function(d,i) {
- //var v = fmt(d);
- var v = d;
- if(logScale) {
- v = Math.pow(10,v);
- v = fmt(v);
- //fmt = d3.format(',.2f');
- //v = fmt(v);
- } else
- v = fmt(v);
- return ('' + v).match('NaN') ? '' : v;
- });
- axisMaxMin.transition()
- .attr('transform', function(d,i) {
- //return 'translate(' + scale.range()[i] + ',0)'
- //return 'translate(' + scale(d) + ',0)'
- return 'translate(' + (scale(d) + (isOrdinal ? scale.rangeBand() / 2 : 0)) + ',0)'
- });
- }
- if (staggerLabels)
- xTicks
- .attr('transform', function(d,i) { return 'translate(0,' + (i % 2 == 0 ? '0' : '12') + ')' });
-
- break;
- case 'right':
- axisLabel.enter().append('text').attr('class', 'nv-axislabel');
- axisLabel
- .style('text-anchor', rotateYLabel ? 'middle' : 'begin')
- .attr('transform', rotateYLabel ? 'rotate(90)' : '')
- .attr('y', rotateYLabel ? (-Math.max(margin.right,width) + 12) : -10) //TODO: consider calculating this based on largest tick width... OR at least expose this on chart
- .attr('x', rotateYLabel ? (scale.range()[0] / 2) : axis.tickPadding());
- if (showMaxMin) {
- var axisMaxMin = wrap.selectAll('g.nv-axisMaxMin')
- .data(scale.domain());
- axisMaxMin.enter().append('g').attr('class', 'nv-axisMaxMin').append('text')
- .style('opacity', 0);
- axisMaxMin.exit().remove();
- axisMaxMin
- .attr('transform', function(d,i) {
- return 'translate(0,' + scale(d) + ')'
- })
- .select('text')
- .attr('dy', '.32em')
- .attr('y', 0)
- .attr('x', axis.tickPadding())
- .style('text-anchor', 'start')
- .text(function(d,i) {
- //var v = fmt(d);
- var v = d;
- if(logScale) {
- v = Math.pow(10,v);
- v = fmt(v);
- //fmt = d3.format(',.2f');
- //v = fmt(v);
- } else
- v = fmt(v);
- return ('' + v).match('NaN') ? '' : v;
- });
- axisMaxMin.transition()
- .attr('transform', function(d,i) {
- return 'translate(0,' + scale.range()[i] + ')'
- })
- .select('text')
- .style('opacity', 1);
- }
- break;
- case 'left':
- /*
- //For dynamically placing the label. Can be used with dynamically-sized chart axis margins
- var yTicks = g.selectAll('g').select("text");
- yTicks.each(function(d,i){
- var labelPadding = this.getBBox().width + axis.tickPadding() + 16;
- if(labelPadding > width) width = labelPadding;
- });
- */
- axisLabel.enter().append('text').attr('class', 'nv-axislabel');
- axisLabel
- .style('text-anchor', rotateYLabel ? 'middle' : 'end')
- .attr('transform', rotateYLabel ? 'rotate(-90)' : '')
- .attr('y', rotateYLabel ? (-Math.max(margin.left,width) + axisLabelDistance) : -10) //TODO: consider calculating this based on largest tick width... OR at least expose this on chart
- .attr('x', rotateYLabel ? (-scale.range()[0] / 2) : -axis.tickPadding());
- if (showMaxMin) {
- var axisMaxMin = wrap.selectAll('g.nv-axisMaxMin')
- .data(scale.domain());
- axisMaxMin.enter().append('g').attr('class', 'nv-axisMaxMin').append('text')
- .style('opacity', 0);
- axisMaxMin.exit().remove();
- axisMaxMin
- .attr('transform', function(d,i) {
- return 'translate(0,' + scale0(d) + ')'
- })
- .select('text')
- .attr('dy', '.32em')
- .attr('y', 0)
- .attr('x', -axis.tickPadding())
- .attr('text-anchor', 'end')
- .text(function(d,i) {
- //var v = fmt(d);
- var v = d;
- if(logScale) {
- v = Math.pow(10,v);
- v = fmt(v);
- //fmt = d3.format(',.2f');
- //v = fmt(v);
- } else
- v = fmt(v);
- return ('' + v).match('NaN') ? '' : v;
- });
- axisMaxMin.transition()
- .attr('transform', function(d,i) {
- return 'translate(0,' + scale.range()[i] + ')'
- })
- .select('text')
- .style('opacity', 1);
- }
- break;
- }
- axisLabel
- .text(function(d) { return d });
-
-
- if (showMaxMin && (axis.orient() === 'left' || axis.orient() === 'right')) {
- //check if max and min overlap other values, if so, hide the values that overlap
- g.selectAll('g') // the g's wrapping each tick
- .each(function(d,i) {
- d3.select(this).select('text').attr('opacity', 1);
- var v;
- if(logScale) {
- v = Math.pow(10,d);
- v = fmt(v);
- //fmt = d3.format(',.2f');
- //v = fmt(v);
- } else {
- v = fmt(d);
- }
-
- //d3.select(this).select('text').text(fmt(Math.pow(10,d)));
- d3.select(this).select('text').text(v);
- if (scale(d) < scale.range()[1] + 10 || scale(d) > scale.range()[0] - 10) { // 10 is assuming text height is 16... if d is 0, leave it!
- if (d > 1e-10 || d < -1e-10) // accounts for minor floating point errors... though could be problematic if the scale is EXTREMELY SMALL
- d3.select(this).attr('opacity', 0);
-
- d3.select(this).select('text').attr('opacity', 0); // Don't remove the ZERO line!!
- }
- });
-
- //if Max and Min = 0 only show min, Issue #281
- if (scale.domain()[0] == scale.domain()[1] && scale.domain()[0] == 0)
- wrap.selectAll('g.nv-axisMaxMin')
- .style('opacity', function(d,i) { return !i ? 1 : 0 });
-
- }
-
- if (showMaxMin && (axis.orient() === 'top' || axis.orient() === 'bottom')) {
- var maxMinRange = [];
- wrap.selectAll('g.nv-axisMaxMin')
- .each(function(d,i) {
- try {
- if (i) // i== 1, max position
- maxMinRange.push(scale(d) - this.getBBox().width - 4) //assuming the max and min labels are as wide as the next tick (with an extra 4 pixels just in case)
- else // i==0, min position
- maxMinRange.push(scale(d) + this.getBBox().width + 4)
- }catch (err) {
- if (i) // i== 1, max position
- maxMinRange.push(scale(d) - 4) //assuming the max and min labels are as wide as the next tick (with an extra 4 pixels just in case)
- else // i==0, min position
- maxMinRange.push(scale(d) + 4)
- }
- });
- g.selectAll('g') // the g's wrapping each tick
- .each(function(d,i) {
- var v;
- if(logScale) {
- v = Math.pow(10,d);
- //v = fmt(v);
- //fmt = d3.format(',.2f');
- v = fmt(v);
- } else {
- v = fmt(d);
- }
- //alert(v);
-
- //d3.select(this).select('text').text(fmt(Math.pow(10,d)));
- d3.select(this).select('text').text(v);
-
- if (scale(d) < maxMinRange[0] || scale(d) > maxMinRange[1]) {
- if (d > 1e-10 || d < -1e-10) // accounts for minor floating point errors... though could be problematic if the scale is EXTREMELY SMALL
- d3.select(this).remove();
- else
- d3.select(this).select('text').remove(); // Don't remove the ZERO line!!
- }
- });
- }
-
-
- //highlight zero line ... Maybe should not be an option and should just be in CSS?
- if (highlightZero)
- g.selectAll('.tick')
- .filter(function(d) { return !parseFloat(Math.round(d.__data__*100000)/1000000) && (d.__data__ !== undefined) }) //this is because sometimes the 0 tick is a very small fraction, TODO: think of cleaner technique
- .classed('zero', true);
-
- //store old scales for use in transitions on update
- scale0 = scale.copy();
-
- });
-
- return chart;
- }
-
-
- //============================================================
- // Expose Public Variables
- //------------------------------------------------------------
-
- // expose chart's sub-components
- chart.axis = axis;
-
- d3.rebind(chart, axis, 'orient', 'tickValues', 'tickSubdivide', 'tickSize', 'tickPadding', 'tickFormat');
- d3.rebind(chart, scale, 'domain', 'range', 'rangeBand', 'rangeBands'); //these are also accessible by chart.scale(), but added common ones directly for ease of use
-
- chart.options = nv.utils.optionsFunc.bind(chart);
-
- chart.margin = function(_) {
- if(!arguments.length) return margin;
- margin.top = typeof _.top != 'undefined' ? _.top : margin.top;
- margin.right = typeof _.right != 'undefined' ? _.right : margin.right;
- margin.bottom = typeof _.bottom != 'undefined' ? _.bottom : margin.bottom;
- margin.left = typeof _.left != 'undefined' ? _.left : margin.left;
- return chart;
- }
-
- chart.width = function(_) {
- if (!arguments.length) return width;
- width = _;
- return chart;
- };
-
- chart.ticks = function(_) {
- if (!arguments.length) return ticks;
- ticks = _;
- return chart;
- };
-
- chart.height = function(_) {
- if (!arguments.length) return height;
- height = _;
- return chart;
- };
-
- chart.axisLabel = function(_) {
- if (!arguments.length) return axisLabelText;
- axisLabelText = _;
- return chart;
- }
-
- chart.showMaxMin = function(_) {
- if (!arguments.length) return showMaxMin;
- showMaxMin = _;
- return chart;
- }
-
- chart.logScale = function(_) {
- if (!arguments.length) return logScale;
- logScale = _;
- return chart;
- }
-
- chart.highlightZero = function(_) {
- if (!arguments.length) return highlightZero;
- highlightZero = _;
- return chart;
- }
-
- chart.scale = function(_) {
- if (!arguments.length) return scale;
- scale = _;
- axis.scale(scale);
- isOrdinal = typeof scale.rangeBands === 'function';
- d3.rebind(chart, scale, 'domain', 'range', 'rangeBand', 'rangeBands');
- return chart;
- }
-
- chart.rotateYLabel = function(_) {
- if(!arguments.length) return rotateYLabel;
- rotateYLabel = _;
- return chart;
- }
-
- chart.rotateLabels = function(_) {
- if(!arguments.length) return rotateLabels;
- rotateLabels = _;
- return chart;
- }
-
- chart.staggerLabels = function(_) {
- if (!arguments.length) return staggerLabels;
- staggerLabels = _;
- return chart;
- };
-
- chart.axisLabelDistance = function(_) {
- if (!arguments.length) return axisLabelDistance;
- axisLabelDistance = _;
- return chart;
- };
-
- //============================================================
-
-
- return chart;
-}
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