README.md

A library for drawing Unlinear Graphs

Gradle Setup

allprojects {
    repositories {
	...
	maven { url 'https://jitpack.io' }
    }
}

dependencies {
    implementation 'com.github.vk59:GraphView-Library:2.0.1'
}

Quick start

1. Firstly, you have to declare a variable of GraphData type. It's necessary to show your data correctly.

The first parameter is ArrayList of Moments (every Moment contains X and Y coordinate of the Graph's point). But it isn't necessary to fill the ArrayList right now (but you can).

private graphData = new GraphData(new ArrayList<Moment>, Color.rgb(61, 244, 165), "Graph №1");

2. OK, it's pretty easy. Then we have to fill our GraphData with points. It's easy too:

graphData.addData(X, Y);

There is float variable X and Y.

3. Or you can add several data using this method:

graphData.setData(arrayListOfMoments);

4. Now we are going to draw our data in the GraphView.

Of course, before that you have to add GraphView to your layout and find that in the code.

private GraphView graphView = findViewById(R.id.graphView);
graphView.addGraphData(graphData);
graphView.drawGraph();

That's all! Your graph is on the display.

5. If you want to clear your graph, write

graphView.clear;

Now graphView forget about all the GraphData objects. Of course, your Data is still saved (in graphData variable). You can add new Moment (point) to graphData, set that to graphView again and draw that.

6. If you want to draw several graphs, you should declare several GraphData variables and add that to GraphView:

graphView.addGraphData(graphData);
graphView.addGraphData(graphData2);
graphView.addGraphData(graphData3);

Examples of using

This library generally was used in the 'ISC' application. You can see the code here

Typical example of unlinear chart

Real time drawing

Drawing several graphs on one chart

Created by Ivan Kostylev