ncp-go-graph

This is a wrap of github.com/wcharczuk/go-chart/v2 to create multi-lines graph. It is useful to show the result of multi-slice data in a chart.

Create Multi-Line Chart

Use this function to create multi-line chart:

func CreateLineGraph(xname, yname string, xval []float64, yval [][]float64, legend []string, fileName string)

Params

• xname: X axis name
• yname: Y axis name
• xval: X axis values slice
• yval: Y values of multi lines, each line has a value slice.
• legend: A legend name list of each line. It will be shown on top of the chart.
• filename: The image name which is created in the subfolder images

View images by browser

Under some circumstances, if you can not view the images locally, you can use this function to start a web service:

func StartWebService(port string, dirPath string)

Params

• port: The web service port. If input empty string, it will use default port ":8080"
• dirPath: The directory of images. If input empty string, it will use default directory "./images"

After starting web service, you may view images remotely by browsing URL: http://host-ip:port