--- /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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