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Add vertical axis labels #113

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Add vertical axis labels #113

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11 changes: 10 additions & 1 deletion smoothie.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1007,9 +1007,19 @@
minValueString = chartOptions.yMinFormatter(this.valueRange.min, chartOptions.labels.precision),
maxLabelPos = chartOptions.scrollBackwards ? 0 : dimensions.width - context.measureText(maxValueString).width - 2,
minLabelPos = chartOptions.scrollBackwards ? 0 : dimensions.width - context.measureText(minValueString).width - 2;

var numSections = chartOptions.grid.verticalSections;
var deltaValue = (this.valueRange.max-this.valueRange.min) / numSections;
var deltaValueString = "";

context.fillStyle = chartOptions.labels.fillStyle;
context.fillText(maxValueString, maxLabelPos, chartOptions.labels.fontSize);
context.fillText(minValueString, minLabelPos, dimensions.height - 2);

for (var i = 1; i < numSections; i++) {
deltaValueString = parseFloat(this.valueRange.max -i*deltaValue).toFixed(2);
context.fillText(deltaValueString, dimensions.width - context.measureText(deltaValueString).width - 2, parseFloat(dimensions.height*i/numSections - 2).toFixed(2));
}
}

// Display intermediate y axis labels along y-axis to the left of the chart
Expand Down Expand Up @@ -1097,4 +1107,3 @@
exports.SmoothieChart = SmoothieChart;

})(typeof exports === 'undefined' ? this : exports);