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>);
Related
I want to set a label in the x-axis for every y-value I have in my LineChart. I want to obtain this result:
Can someone help me in finding the correct way of doing this in MPAndroidChart?
You may be looking for granularity - see the wiki page for the axis and the javadoc.
Calling like this:
mChart.getXAxis().setGranularity(0.3f);
mChart.getXAxis().setGranularityEnabled(true);
will ensure that 0.3 is the minimum interval on the axis when you are zoomed in. Apart from that you may have to tweak the the scale of the x-axis by calling:
mChart.getXAxis().setAxisMinValue(10.01f); //experiment with these values
mChart.getXAxis().setAxisMaxValue(10.14f);
mChart.getXAxis().setLabelCount(5);
I have a problem using MPChart ：
x axis couldn't display the first date，could someone help me？thanks！
You can use the setAvoidFirstLastClipping(Boolean) from your chart to avoid your first and last labels to be truncated.
From the doc:
setAvoidFirstLastClipping(boolean enabled): If set to true, the chart will avoid that the first and last axis label entry in the x-axis "clip" off the edge of the chart or the screen.
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();
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 .
I have set min max range for y-axis values but graph can scroll beyond those values which hampers the look and feel of graph. I wish to control/stop scrolling of graph along the y-axis. How can I do that?
What you need is specify which axis panning is available for: mRenderer.setPanEnabled(boolean enabledX, boolean enabledY)
Click here for more
use the following for locking both x and y axis scrolling, based on our need boolean values can be specified
render.setPanEnabled(false, false);
use setPanLimits method.
mRenderer.setPanLimits(new double[]{0,10,0,5});
this code will disable panning beyond 0 to the left,10 to the right on X axis,and beyond 0 down and 5 up on Y axis.