A line graph is a graphical display of information that changes continuously over time. A line graph may also be referred to a line chart. Within a line graph, there are points connecting the data to show a continuous change. The lines in a line graph can descend and ascend based on the data. We can use a line graph to compare different events, situations, and information. Note: Choose the file extension as js.

Sample Code

setChartLibrary('google-chart');
setChartTitle('Your Graph Title');
setChartType('lineGraph');
setAxisName('X-Axis Name','Y-axis Name');
plotChart('time_stamp','your_variable_name');

Output

Code Format

Syntax	Parameter(s)	Description
setChartLibrary('google-chart');	Library Name	Set the chart library to be used. Bolt Cloud uses 'google-chart' to visualize the data.
setChartTitle('Your Graph Title');	Graph Name	Set the title of the graph according to your choice. You can also pass device id and device name in the setChartTitle in function. For example: setChartTitle(device_name + "" + device_id);
setChartType('lineGraph');	Graph type	Set the type of chart to be plotted. Bolt Cloud offers 8 different types of charts to be plotted i.e Line Graph, Bar Graph, Scatter Graph, Area Graph, Table Graph, Stepped Graph, Histogram Graph, and Gauge.
setAxisName('X-Axis Name','Y-axis Name');	Axis Name	Set the display name for each of the graph axis.
plotChart('time_stamp','your_variable_name');	Variable Names	Display the graph on the screen for the given variables. The first parameter is always 'time_stamp' and the second parameter is the variable name that you have given during hardware configuration of the product.
setLogo('logo_source', height, width);	Logo path & Dimensions	Set the logo of your choice to be displayed at the top left corner of the website. The first parameter is logo source and the second and third parameter is the height and width of the image in pixels. Every parameter is optional. Bolt's logo and height of 45 px are set by default.
setNumberFormatter('format type');	Format type	Describes how numeric columns should be formatted. setNumberFormatter() function supports the following options as parameter - 'decimal', 'scientific', 'percentage', 'currencyInDollar', 'currencyInRupees'. This function should be called before the plotChart() function.
setAnimation(boolean);	Boolean type	This function describes how to animate modifications made to a chart, instead of applying them instantly. setAnimation() function supports the following options as parameter- true, false. It is enabled (true) by default and this function should be called before the plotChart() function.
setCrosshair(boolean);	Boolean type	Crosshairs are thin vertical and horizontal lines centered on a data point in a chart. When you, as a chart creator, enable crosshairs in your charts, your users will then be able to target a single element. setCrosshair() function supports the following options as parameter- true, false. It is disabled (false) by default and this function should be called before the plotChart() function.
setDateFormatter('date format');	Date Format	Formats the x-axis date value in a variety of ways. setDateFormatter() function supports the following options as parameter- 'mm/dd/yyyy', 'dd/mm/yyyy'. This function should be called before the plotChart() function.