GraphView always start on zero, and dynamically data

Question

How can I make my GraphView always start on zero and not on the lowest number of my data ? For example if my data received is {10,44,1,15}, the bottom one will be the 1 and I wanted to be zero. How can I do that ?

And how can I make the GraphViewSeries dynamically ? For example I receive an array with data and I want depending the size of the array to make the GraphViewSeries, like if I receive an array with 3 elements the GraphViewSeries will be like this:

GraphViewSeries exampleSeries = new GraphViewSeries(
                new GraphViewData[] { 
                        new GraphViewData(1, total[0]),
                        new GraphViewData(2, total[1]),
                        new GraphViewData(3, total[2])});

If the array has 5 elements with would be like this:

GraphViewSeries exampleSeries = new GraphViewSeries(
                new GraphViewData[] { 
                        new GraphViewData(1, total[0]),
                        new GraphViewData(2, total[1]),
                        new GraphViewData(3, total[2]),
                        new GraphViewData(4, total[3]),
                        new GraphViewData(5, total[4]) });

How can I do this ?

score 5 · Accepted Answer · answered Jun 20 '14 at 15:26

5

You can set the min and max values like this:

GraphView graphView = new LineGraphView(context, "Graph name")
graphView.setManualYAxisBounds((double) max, (double) min);

For dynamic series you can do this:

GraphViewData[] data = new GraphViewData[total.length];
for (int a = 0; a < total.length; a++) {
    data[a] = new GraphView.GraphViewData(a, total[a]);
}

then you add your data to a series like this:

GraphViewSeriesStyle style = new GraphViewSeriesStyle(Color.rgb(150, 150, 150), 2);
GraphViewSeries series = new GraphViewSeries(driverName.substring(0, 3).toUpperCase(), style, data);

for the official documentation refer to here.

answered Jun 20 '14 at 15:26

Ayoub

341
1
13

I forgot to change driverName to a general string, it should be the string to show in the legend. – Ayoub Jun 20 '14 at 16:00
I don't know why but my array is {3,1,2,2}, but when I create the graph I get 1,3,2,2 :/ – SnakeSheet Jun 20 '14 at 16:01
And how can I align the bars to the horizontal labels ? – SnakeSheet Jun 20 '14 at 16:02
I'm not sure about taht, i started using this library this afternoon :) – Ayoub Jun 20 '14 at 16:07
I had changed the order `graphView.setManualYAxisBounds((double) max, (double) min);` I was putting `min, max` – SnakeSheet Jun 20 '14 at 16:19

jox · Answer 2 · 2015-10-14T23:18:23.863

5

In GraphView 4.x, setting the axis min and max values has to be done via the viewport:

graphView.getViewport().setYAxisBoundsManual(true);
graphView.getViewport().setMinY(min);
graphView.getViewport().setMaxY(max);

'graphView.setManualYAxisBounds()' no longer exists.

See also http://www.android-graphview.org/documentation/migration-from-31-to-40

edited Oct 14 '15 at 23:18

answered Sep 08 '15 at 13:01

jox

2,218
22
32

GraphView always start on zero, and dynamically data

2 Answers2