【移动应用开发技术】achartengine如何实现平行线、动态数据、x轴动态移动

【移动应用开发技术】achartengine如何实现平行线、动态数据、x轴动态移动

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package

com.example.achartparallel;

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import

com.example.achartparallel.XYRenderer;

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import

java.math.BigDecimal;

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import

java.text.DecimalFormat;

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import

org.achartengine.ChartFactory;

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import

org.achartengine.GraphicalView;

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import

org.achartengine.chart.PointStyle;

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import

org.achartengine.model.XYMultipleSeriesDataset;

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import

org.achartengine.model.XYSeries;

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import

org.achartengine.renderer.XYMultipleSeriesRenderer;

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import

org.achartengine.renderer.XYSeriesRenderer;

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import

android.app.Activity;

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import

android.app.AlertDialog;

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import

android.content.Context;

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import

android.content.DialogInterface;

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import

android.content.Intent;

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import

android.graphics.Color;

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import

android.os.Bundle;

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import

android.os.Handler;

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import

android.os.Message;

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import

android.view.LayoutInflater;

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import

android.view.Menu;

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import

android.view.MenuItem;

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import

android.view.View;

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import

android.view.View.OnClickListener;

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import

android.view.ViewGroup.LayoutParams;

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import

android.view.Window;

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import

android.view.WindowManager;

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import

android.widget.Button;

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import

android.widget.EditText;

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import

android.widget.LinearLayout;

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import

android.widget.TextView;

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import

android.widget.Toast;

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public

class

MainActivity

extends

Activity

{

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private

XYSeries

xyseries;//数据

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private

XYSeries

xyseries_up;//上平行线

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private

XYSeries

xyseries_down;//下平行线

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private

XYMultipleSeriesDataset

dataset;

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private

GraphicalView

chartview;

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private

XYMultipleSeriesRenderer

renderer;

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private

XYSeriesRenderer

datarenderer;

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private

XYSeriesRenderer

datarenderer_up;

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private

XYSeriesRenderer

datarenderer_down;

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private

Context

context;

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int

i=0;

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Thread

t;

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private

int

addX

;

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private

double

addY

;

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int

X_MAX=10;//x轴***值

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//标准和阈值

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double

value=10

;//平行线中间值

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double

bound=0.5;//上下限

可以自己随意设定

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protected

void

onCreate(Bundle

savedInstanceState)

{

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super.onCreate(savedInstanceState);

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requestWindowFeature(Window.FEATURE_NO_TITLE);

//无title

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setContentView(R.layout.activity_main);

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LinearLayout

chart_layout1

=

(LinearLayout)findViewById(R.id.chart_layout1);

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chart_layout1.setBackgroundColor(Color.BLACK);

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//No.1

设定大渲染器的属性

太多了

所以写了个类

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renderer=new

XYRenderer("零件",

"X轴(单位:id)",

"Y轴(mm)",

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0,X_MAX,

-1,

1,

Color.GRAY,

Color.LTGRAY,

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16,16,10,15,20,10,true);

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dataset=new

XYMultipleSeriesDataset();

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datarenderer=new

XYSeriesRenderer();

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datarenderer.setDisplayChartValues(true);

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xyseries=new

XYSeries("零件");

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//2

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xyseries.add(0,

0);//先输入一个数据让它绘出renderer

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//3

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dataset.addSeries(0,xyseries);

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datarenderer.setColor(Color.GREEN);

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datarenderer.setPointStyle(PointStyle.POINT);

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//4

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renderer.addSeriesRenderer(datarenderer);

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//5

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context

=

getApplicationContext();

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chartview

=

ChartFactory.getLineChartView(context,

dataset,

renderer);

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chart_layout1.addView(chartview,

new

LayoutParams(LayoutParams.FILL_PARENT,

LayoutParams.FILL_PARENT));

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//设置按钮

用来记录尺寸的标准(value)和阈值(bound),然后再主界面显示出红线

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//绘出两条红线

分别用新的XYSeriesRenderer要不然会报错

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xyseries_up=new

XYSeries("阈值1");

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xyseries_down=new

XYSeries("阈值2");

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xyseries_up.add(0

,

value+bound);

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xyseries_up.add(X_MAX*2,

value+bound);

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xyseries_down.add(0,

value-bound);

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xyseries_down.add(X_MAX*2,value-bound);

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dataset.addSeries(1,xyseries_up);

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dataset.addSeries(2,xyseries_down);

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datarenderer_up

=

new

XYSeriesRenderer();

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datarenderer_down

=

new

XYSeriesRenderer();

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datarenderer_up.setColor(Color.RED);

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datarenderer_down=datarenderer_up;

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renderer.addSeriesRenderer(datarenderer_up);

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renderer.addSeriesRenderer(datarenderer_down);

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renderer.setYAxisMin(value-(4*bound));//

Y最小值

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renderer.setYAxisMax(value+(4*bound));//

Y最小值

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//设置chart的视图范围

参数//1x->start

2max

3y->start

4max

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renderer.setRange(new

double[]{0d,

(double)X_MAX,

value-(4*bound),

value+(4*bound)});

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//

chartview.repaint();

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t=new

Thread

(r1);

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t.start();

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}//oncreate

end

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//handler处理UI更新

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Handler

myhandler=new

Handler()

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{

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@Override

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public

void

handleMessage(Message

msg)

{

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super.handleMessage(msg);

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chartview.repaint();

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}

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};

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Runnable

r1=new

Runnable()

{

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BigDecimal

b;

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public

void

run(){

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try

{

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while(true)

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{

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i++;

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Thread.sleep(500);

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addX

=

i;

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//设置好下一个需要增加的节点

随机产生

在value+-bound左右

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b

=new

BigDecimal(((Math.random())*bound*4)-(2*bound));

//转换

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addY=b.setScale(3,

BigDecimal.ROUND_HALF_UP).doubleValue();

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//double+double再转一次

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b

=new

BigDecimal(addY+value);

//保留三位小数

四舍五入

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addY=b.setScale(3,

BigDecimal.ROUND_HALF_UP).doubleValue();

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//传给hanlder

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Message

message=new

Message();

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Bundle

bundle=new

Bundle();

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bundle.putString("part_id1",

"编号:"+addX);

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bundle.putString("part_size1",

"尺寸:"+addY);

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message.setData(bundle);//bundle传值，耗时，效率低

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myhandler.sendMessage(message);//发送message信息

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message.what=1;//标志是哪个线程传数据

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//步骤不能变

1先清除数据

2添加源数据

3添加数据

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dataset.removeSeries(xyseries);

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xyseries.add(addX,

addY);

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dataset.addSeries(0,xyseries);

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//chartview.repaint();

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chartview.postInvalidate();

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if(i*2>X_MAX)//延长X_MAX造成右移效果

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{

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X_MAX*=2;//按2倍速度延长

可以设置成speed

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renderer.setXAxisMax(X_MAX);//

设置X***值

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dataset.removeSeries(xyseries_up);

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dataset.removeSeries(xyseries_down);

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xyseries_up.add(X_MAX/2

,

value+bound);

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xyseries_up.add(X_MAX,

value+bound);

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xyseries_down.add(X_MAX/2,

value-bound);

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xyseries_down.add(X_MAX,value-bound);

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dataset.addSeries(1,xyseries_up);

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dataset.addSeries(2,xyseries_down);

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//

datarenderer_up

=

new

XYSeriesRenderer();

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//

datarenderer_down

=

new

XYSeriesRenderer();

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//

datarenderer_up.setColor(Color.RED);

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//

datarenderer_down=datarenderer_up;

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renderer.addSeriesRenderer(datarenderer_up);

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renderer.addSeriesRenderer(datarenderer_down);

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}

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}

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}

catch

(InterruptedException

e)

{

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e.printStackTrace();

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}

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}

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};

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@Override

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protected

void

onDestroy()

{

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errupt();

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System.out.println("destory");

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super.onDestroy();

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}

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}

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package

com.example.achartparallel;

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import

org.achartengine.renderer.XYMultipleSeriesRenderer;

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public

class

XYRenderer

extends

XYMultipleSeriesRenderer

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{

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//图表样式构造器

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public

XYRenderer()

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{

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}

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public

XYRenderer(

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String

title,

String

xTitle,

String

yTitle,

double

xMin,

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double

xMax,

double

yMin,

double

yMax,

int

axesColor,

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int

labelsColor,int

XTitleTextSize,int

ChartTitleTextSize,

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int

LabelsTextSize,int

LegendTextSize,int

Xshow,int

Yshow,

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boolean

ShowGrid)

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{

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this.setChartTitle(title);

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this.setXTitle(xTitle);//

X轴标题

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this.setYTitle(yTitle);//

Y轴标题

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this.setXAxisMin(xMin);//

X最小值

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this.setXAxisMax(xMax);//

X***值

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this.setYAxisMin(yMin);//

Y最小值

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this.setYAxisMax(yMax);//

Y最小值

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this.setAxesColor(axesColor);//

X轴颜色

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this.setLabelsColor(labelsColor);//

Y轴颜色

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this.setAxisTitleTextSize(XTitleTextSize);

//

坐标轴标题字体大小：16

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this.setChartTitleTextSize(ChartTitleTextSize);

//

图表标题字体大小：20

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this.setLabelsTextSize(LabelsTextSize);

//

轴标签字体大小：10

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this.setLegendTextSize(LegendTextSize);

//

图例字体大小：15

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this.setXLabels(Xshow);//设置X轴显示的刻度标签的个数

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this.setYLabels(Yshow);//设置Y轴显示的刻度标签的个数

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this.setShowGrid(ShowGrid);

//

设置网格显示

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}

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}

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package

com.example.achartparallel;

2

3

import

org.achartengine.renderer.XYMultipleSeriesRenderer;

4

5

public

class

XYRenderer

extends

XYMultipleSeriesRenderer

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{

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//图表样式构造器

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public

XYRenderer()

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{

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}

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public

XYRenderer(

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String

title,

String

xTitle,

String

yTitle,

double

xMin,

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double

xMax,

double

yMin,

double

yMax,

int

axesColor,

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int

labelsColor,int

XTitleTextSize,int

ChartTitleTextSize,

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int

LabelsTextSize,int

LegendTextSize,int

Xshow,int

Yshow,

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boolean

ShowGrid)

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{

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this.setChartTitle(title);

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this.setXTitle(xTitle);//

X轴标题

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this.setYTitle(yTitle);//

Y轴标题

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this.setXAxisMin(xMin);//

X最小值

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this.setXAxisMax(xMax)