Support set step value for Horizontal and Vertical Axis (x/y axis)

[tsengvn]

Hi, after deeply searching in this lib, I see you do not support for setting these values yet.

For example, I have a bunch of data of temperature of few months, and I want to draw a chart with step in Y axis is 5 degree, and step in X axis is each 7 days, what I want is the gridline always point to that step value.

I see some others chart lib have this feature, but I love this library (the style, animation, setup). Could you please add this in next release ?

Thanks.

[lecho]

Hi, thanks for idea, I think it is relatively easy task so I will try to implement it in this week.

[tsengvn]

@lecho thanks, I'm looking forward for it

[lecho]

I added three static methods in Axis class for axis generation:

/**
* Generates Axis with values from start to stop inclusive.
*/
public static Axis generateAxisFromRange(float start, float stop, float step);

/**
* Generates Axis with values from given list.
*/
public static Axis generateAxisFromCollection(List<Float> axisValues);

/**
* Generates Axis with values and labels from given lists, both lists must have the same size.
*/
public static Axis generateAxisFromCollection(List<Float> axisValues, List<String> axisValuesLabels);

[tsengvn]

Hi, tested, they worked well. Thanks you alot @lecho

[fjpatil]

Hi Lecho,

Let me know how to use the above mentioned static methods.

My Requirement: I want show the X axis values dynamically.
For Example: If my Total distance is 50KM, then I need to show 0,10,20,30,40,50 points in x axis.
Let me know how can I achive it.

Example Code for X axis Value Generation:

public class graph1 {

public static void main(String[] args) {
    // TODO Auto-generated method stub


    int slicing=5;
    int toal_distance=50;

    int sliced=toal_distance/5;
    System.out.println("========The Following Points to be displayed===========");
    for(int i=0;i<=5;i++){  
        int total_points=sliced*i;
        System.out.println("Total Points:"+total_points);

    }
}

}

Output:
========The Following Points to be displayed===========
Total Points:0
Total Points:10
Total Points:20
Total Points:30
Total Points:40
Total Points:50