TrendLine
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);
Properties
| Property | Type | Default | Description |
|---|
| dashLength | Number | 0 | Dash length. |
| finalCategory | String | | String, equal to category value to which trend line should be drawn. It should be used if chart doesn't parse dates. |
| finalDate | Date | | Date to which trend line should be drawn. It should be date object and can only be used if chart parses dates. |
| finalValue | Number | | Value at which trend line should end. |
| finalXValue | Number | | Used by XY chart only. X value at which trend line should end. |
| initialCategory | String | | String, equal to category value from which trend line should start. It should be used if chart doesn't parse dates. |
| initialDate | Date | | Date from which trend line should start. It should be date object and can only be used if chart parses dates. |
| initialValue | Number | | Value from which trend line should start. |
| initialXValue | Number | | Used by XY chart only. X value from which trend line should start. |
| isProtected | Boolean | 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 | Number | 1 | Line opacity. |
| lineColor | String | #00CC00 | Line color. |
| lineThickness | Number | 1 | Line thickness. |
| valueAxis | ValueAxis | | Value axis of the trend line. Will use first value axis of the chart if not set any. |
| valueAxisX | ValueAxis | | Used by XY chart only. X axis of trend line. Will use first X axis of the chart if not set any. |
Methods
TrendLine class does not have any methods.
Events
TrendLine class does not have any events.