TrendLine – amCharts Version 2 Documentation

Type class

Trend lines are straight lines indicating trends, might also be used for some different purposes. Can be used by Serial and XY charts. To add/remove trend line, use chart.addTrendLine(trendLine)/chart.removeTrendLine(trendLine) methods or simply pass array of trend lines: chart.trendLines = [trendLine1, trendLine2] Example:

var trendLine = new AmCharts.TrendLine();
trendLine.initialDate = new Date(2012, 0, 2, 12); // 12 is hour - to start trend line in the middle of the day
trendLine.finalDate = new Date(2012, 0, 11, 12);
trendLine.initialValue = 10;
trendLine.finalValue = 19;
trendLine.lineColor = "#CC0000";
chart.addTrendLine(trendLine);

Inheritance

TrendLine does not extend any other symbol.

TrendLine is not extended by any other symbol.

Properties

dashLength #	Type `number` Default `0` Dash length.
finalCategory #	Type `string` Default String, equal to category value to which trend line should be drawn. It should be used if chart doesn't parse dates.
finalDate #	Type `Date` Default Date to which trend line should be drawn. It should be date object and can only be used if chart parses dates.
finalValue #	Type `number` Default Value at which trend line should end.
finalXValue #	Type `number` Default Used by XY chart only. X value at which trend line should end.
initialCategory #	Type `string` Default String, equal to category value from which trend line should start. It should be used if chart doesn't parse dates.
initialDate #	Type `Date` Default Date from which trend line should start. It should be date object and can only be used if chart parses dates.
initialValue #	Type `number` Default Value from which trend line should start.
initialXValue #	Type `number` Default Used by XY chart only. X value from which trend line should start.
isProtected #	Type `boolean` Default `false` Used by Stock chart. If this property is set to true, this trend line won't be removed when clicked on eraser tool.
lineAlpha #	Type `number` Default `1` Line opacity.
lineColor #	Type `string` Default `#00CC00` Line color.
lineThickness #	Type `number` Default `1` Line thickness.
valueAxis #	Type `ValueAxis` Default Value axis of the trend line. Will use first value axis of the chart if not set any.
valueAxisX #	Type `ValueAxis` Default Used by XY chart only. X axis of trend line. Will use first X axis of the chart if not set any.

Methods

TrendLine does not have any methods.

Events

TrendLine does not have any events.

Adapters

TrendLine does not have any adapters.