Triangle

Overview

The Triangle annotation allows to add a triangle to a chart.

This article explains how to add a Triangle and configure its basic and visual settings. You can find more settings and other useful information in the articles describing annotations in general:

Basic Settings

To add a Triangle annotation to a chart, call the triangle() method of the annotations() object.

Next, use the xAnchor(), valueAnchor(), secondXAnchor(), secondValueAnchor(), thirdXAnchor() and thirdValueAnchor() methods to set 3 points that determine the position of the triangle. Usually, the most convenient way to do this is object notation:

// create a stock chart
chart = anychart.stock();

// create a plot on the chart
var plot = chart.plot(0);

// access the annotations() object of the plot to work with annotations
var controller = plot.annotations();

// create a Triangle annotation
controller.triangle({
    xAnchor: "2006-03-14",
    valueAnchor: 25.14,
    secondXAnchor: "2007-02-25",
    secondValueAnchor: 34.5,
    thirdXAnchor: "2007-02-04",
    thirdValueAnchor: 20.65
});

This is how it looks like:

JsFiddle Playground

Visual Settings

You can also configure the visual settings of a Triangle annotation:

In the sample below, there are two Triangle annotations with some of the visual settings configured (by using an object in the first case and methods in the second):

// create the first Triangle annotation and configure its visual settings
triangle1 = controller.triangle({
    xAnchor: "2006-03-14",
    valueAnchor: 25.14,
    secondXAnchor: "2007-02-25",
    secondValueAnchor: 34.5,
    thirdXAnchor: "2007-02-04",
    thirdValueAnchor: 20.65,
    hoverFill: "#398CAE 0.3",
    hoverStroke: "2 #FF0000",
    selectFill: "#398CAE 0.3",
    selectHatchFill: "brick",
    selectStroke: "5 #FF0000"
});

// create the second Triangle annotation
triangle2 = controller.triangle();

// set the position of the second annotation
triangle2.xAnchor("2004-09-15");
triangle2.valueAnchor(15);
triangle2.secondXAnchor("2004-12-26");
triangle2.secondValueAnchor(23);
triangle2.thirdXAnchor("2005-10-02");
triangle2.thirdValueAnchor(15);

// configure the visual settings of the second annotation
triangle2.stroke("#2196F3", 3, "10 2");
triangle2.fill(null);

JsFiddle Playground

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