Is there any way to limit the scroll area of AChartEngine? I have a graph of stats for a team where the X-axis represents time and the Y-axis represents score and it doesn't make sense to have negative for either. I'd like to make it so that the farthest that the user can scroll down and to the left would put the origin in the bottom left corner of the screen. I appreciate any assistance.
Try using setPanLimits() method ..
double[] panLimits={0,10,0,50}; // [panMinimumX, panMaximumX, panMinimumY, panMaximumY]
mRenderer2.setPanLimits(panLimits);
where mRenderer2 is XYMultipleSeriesRenderer .
Related
I am using the MPAndroidChart library to graph live sensor data in a line graph. I'm hoping to give the data a sort of 'buffer' on the right-hand end so that new data is in the centre of the screen. I've tried to illustrate what I mean below:
Basically, I have got it so the ViewPort scrolls and shows the most recent item in the right-most end of the screen, but I would like it in the centre. Thanks!
you need to set Xaxis maximum, set visibleXrange and last move the viewport
double range = 5; // how many data you want to show in view port
double maxX = 100; // your highest X value
chartView.getXAxis().setAxisMaximum(maxX + range/2);
chartView.setVisibleXRange(range, range);
chartView.moveViewToX(maxX);
chartView.notifyDataSetChanged();
I am using MPAndroidChart for drawing line chart.
I need to draw a Dual YAxis Line chart (i.e. with 2 Y Axis, one on left and other on right). But when I draw the graph it is being drawn from left. It takes into consideration the Left YAxis values rather than the Right YAxis values.
I am drawing Weights(kg) on right side and Heights(ft) on the left side.
As weights will be in terms of 40s, 50s etc and heights in terms of 5, 6 etc... The Line being drawn for Height takes left reference, which has 50s, 60s and hence never comes up.
Please let me know how to direct to draw considering the right Y Axis for Height rather than left Y Axis.
You can just use the setAxisDependency function in order to let a DataSet depend on a given axis. In your case it should be set to right:
LineDataSet set = new LineDataSet(data, "Your Label");
set.setAxisDependency(YAxis.AxisDependency.RIGHT); // plot this set against the right axis
I am using the MPAndroidChart library.
I have multiple scattercharts in a ListView.
Every chart contains 365 xvalues (every day of the year).
The yvalues vary from 1 to 5.
The height of the charts is 150dp.
I would like to be able to zoom in, so I can see every single day.
But when I zoom in, the yvalues get out of range of the chart.
Is there a way to keep the yvalues within range of the chart?
I tried it with the next settings:
holder.chart.setTouchEnabled(true);
holder.chart.setDragEnabled(true);
holder.chart.setScaleEnabled(false);
holder.chart.setScaleMinima(3f, 0f);
holder.chart.centerViewPort(xIndex, 3);
But when I drag from left to right or right to left, values just disappear from the chart, even when in range.
Has anyone any idea how to accomplish this?
This is your issue:
holder.chart.setScaleMinima(3f, 0f);
You are setting the scale value of the y-axis to zero. By doing that, you practically zoom out the chart into infinity. If you do not want to manipulate the zoom/scale of the y-axis, set the y-scale to 1f. Like this:
holder.chart.setScaleMinima(3f, 1f);
Try to invalidate the chart after centerViewPort, worked for me.
holder.chart.invalidate();
I am trying to move a sprite from the top to bottom of the screen but I do not have any success at this moment... I've used the following as example.
In this case, the sprites, are moving from left to right, and in my case I want to move them from top to bottom.
Can anyone give me a help on this?
How can I proceed to make this work?
Use CCMoveToAction for moving a sprite.
For the movement of sprite from top to bottom
//to get total size of display
CGSize winSize = CCDirector.sharedDirector().displaySize();
CCMoveTo moveTo = CCMoveTo.action(1,
CGPoint.ccp(width, ));
Here is my problem:
I am using AFreeChart to display a chart in my activity. I am giving only positive inputs to my graph.
So I wanted to show my graph only in
(X,Y) Quadrant not in (X,-Y) Quadrant
(-X,Y) Quadrant and (-X,-Y) Quadrant
Is there any possibility to limit quadrants?.
Can anyone please tell me is there any way to customize Quadrants in AFreeChart?
You need to force the range values for the axes to be positive in order to achieve this, you can set the lowerLimit for your range as 0.0 and upper to the maximum value. Something like below,
axis.setRange(0.0, <+upper limit value>);