Related
I found the following code in C++ for fast transposition of an 8x8 matrix of 32-bit values: https://stackoverflow.com/a/51887176/1915854
inline void Transpose8x8Shuff(unsigned long *in)
{
__m256 *inI = reinterpret_cast<__m256 *>(in);
__m256 rI[8];
rI[0] = _mm256_unpacklo_ps(inI[0], inI[1]);
rI[1] = _mm256_unpackhi_ps(inI[0], inI[1]);
rI[2] = _mm256_unpacklo_ps(inI[2], inI[3]);
rI[3] = _mm256_unpackhi_ps(inI[2], inI[3]);
rI[4] = _mm256_unpacklo_ps(inI[4], inI[5]);
rI[5] = _mm256_unpackhi_ps(inI[4], inI[5]);
rI[6] = _mm256_unpacklo_ps(inI[6], inI[7]);
rI[7] = _mm256_unpackhi_ps(inI[6], inI[7]);
__m256 rrF[8];
__m256 *rF = reinterpret_cast<__m256 *>(rI);
rrF[0] = _mm256_shuffle_ps(rF[0], rF[2], _MM_SHUFFLE(1,0,1,0));
rrF[1] = _mm256_shuffle_ps(rF[0], rF[2], _MM_SHUFFLE(3,2,3,2));
rrF[2] = _mm256_shuffle_ps(rF[1], rF[3], _MM_SHUFFLE(1,0,1,0));
rrF[3] = _mm256_shuffle_ps(rF[1], rF[3], _MM_SHUFFLE(3,2,3,2));
rrF[4] = _mm256_shuffle_ps(rF[4], rF[6], _MM_SHUFFLE(1,0,1,0));
rrF[5] = _mm256_shuffle_ps(rF[4], rF[6], _MM_SHUFFLE(3,2,3,2));
rrF[6] = _mm256_shuffle_ps(rF[5], rF[7], _MM_SHUFFLE(1,0,1,0));
rrF[7] = _mm256_shuffle_ps(rF[5], rF[7], _MM_SHUFFLE(3,2,3,2));
rF = reinterpret_cast<__m256 *>(in);
rF[0] = _mm256_permute2f128_ps(rrF[0], rrF[4], 0x20);
rF[1] = _mm256_permute2f128_ps(rrF[1], rrF[5], 0x20);
rF[2] = _mm256_permute2f128_ps(rrF[2], rrF[6], 0x20);
rF[3] = _mm256_permute2f128_ps(rrF[3], rrF[7], 0x20);
rF[4] = _mm256_permute2f128_ps(rrF[0], rrF[4], 0x31);
rF[5] = _mm256_permute2f128_ps(rrF[1], rrF[5], 0x31);
rF[6] = _mm256_permute2f128_ps(rrF[2], rrF[6], 0x31);
rF[7] = _mm256_permute2f128_ps(rrF[3], rrF[7], 0x31);
}
However, converting it to Java vector API ( https://download.java.net/java/early_access/panama/docs/api/jdk.incubator.vector/jdk/incubator/vector/IntVector.html ) is not straightforward, because the Java vector API doesn't map directly to CPU instructions / C++ intrinsics.
Can you share what the equivalents of the following intrinsics/macros in Java are?
_mm256_unpacklo_ps()
_mm256_unpackhi_ps()
_mm256_shuffle_ps()
_MM_SHUFFLE()
_mm256_permute2f128_ps()
I can use the latest JDK 19.
UPDATE: following the suggestion by #Soonts , I've implemented the following, and it passes tests, but it's terribly slow:
public class SimdOps {
public static final VectorSpecies<Integer> SPECIES_INT = IntVector.SPECIES_256;
public static final VectorSpecies<Long> SPECIES_LONG = LongVector.SPECIES_256;
public static final VectorShuffle<Integer> vsUnpackLo = VectorShuffle.fromValues(SPECIES_INT, 0, -8, 1, -7, 4, -4,
5, -3);
public static final VectorShuffle<Integer> vsUnpackHi = VectorShuffle.fromValues(SPECIES_INT, 2, -6, 3, -5, 6, -2,
7, -1);
public static final VectorShuffle<Integer> vsShuffle1010 = VectorShuffle.fromValues(SPECIES_INT, 0, 1, -8, -7, 4,
5, -4, -3);
public static final VectorShuffle<Integer> vsShuffle3232 = VectorShuffle.fromValues(SPECIES_INT, 2, 3, -6, -5, 6, 7,
-2, -1);
public static final VectorShuffle<Integer> vsPermute0x20 = VectorShuffle.fromValues(SPECIES_INT, 0, 1, 2, 3, -8, -7,
-6, -5);
public static final VectorShuffle<Integer> vsPermute0x31 = VectorShuffle.fromValues(SPECIES_INT, 4, 5, 6, 7, -4, -3,
-2, -1);
// Transpose 8x8 matrix of 32-bit integers, stored in 256-bit SIMD vectors
public static final void transpose8x8(IntVector[] inpM) {
assert inpM.length == Constants.INTS_PER_SIMD;
// https://stackoverflow.com/questions/25622745/transpose-an-8x8-float-using-avx-avx2
// https://stackoverflow.com/questions/73977998/simd-transposition-of-8x8-matrix-of-32-bit-values-in-java
final IntVector rI0 = inpM[0].rearrange(vsUnpackLo, inpM[1]);
final IntVector rI1 = inpM[0].rearrange(vsUnpackHi, inpM[1]);
final IntVector rI2 = inpM[2].rearrange(vsUnpackLo, inpM[3]);
final IntVector rI3 = inpM[2].rearrange(vsUnpackHi, inpM[3]);
final IntVector rI4 = inpM[4].rearrange(vsUnpackLo, inpM[5]);
final IntVector rI5 = inpM[4].rearrange(vsUnpackHi, inpM[5]);
final IntVector rI6 = inpM[6].rearrange(vsUnpackLo, inpM[7]);
final IntVector rI7 = inpM[6].rearrange(vsUnpackHi, inpM[7]);
final IntVector rrF0 = rI0.rearrange(vsShuffle1010, rI2);
final IntVector rrF1 = rI0.rearrange(vsShuffle3232, rI2);
final IntVector rrF2 = rI1.rearrange(vsShuffle1010, rI3);
final IntVector rrF3 = rI1.rearrange(vsShuffle3232, rI3);
final IntVector rrF4 = rI4.rearrange(vsShuffle1010, rI6);
final IntVector rrF5 = rI4.rearrange(vsShuffle3232, rI6);
final IntVector rrF6 = rI5.rearrange(vsShuffle1010, rI7);
final IntVector rrF7 = rI5.rearrange(vsShuffle3232, rI7);
inpM[0] = rrF0.rearrange(vsPermute0x20, rrF4);
inpM[1] = rrF1.rearrange(vsPermute0x20, rrF5);
inpM[2] = rrF2.rearrange(vsPermute0x20, rrF6);
inpM[3] = rrF3.rearrange(vsPermute0x20, rrF7);
inpM[4] = rrF0.rearrange(vsPermute0x31, rrF4);
inpM[5] = rrF1.rearrange(vsPermute0x31, rrF5);
inpM[6] = rrF2.rearrange(vsPermute0x31, rrF6);
inpM[7] = rrF3.rearrange(vsPermute0x31, rrF7);
}
};
And the bottleneck is jdk.incubator.vector.Int256Vector.rearrange(VectorShuffle, Vector) . It's at least 10 times slower than the scalar code. Any ideas?
Disclaimer: I never wrote anything similar in Java.
Based on the documentation, the rearrange seems the only way to go.
The only issue is how to translate C intrinsics into the integers for the VectorShuffle<Float>.
Here's C++ code to find out:
void printShuffle( __m256 v, const char* name )
{
__m256i iv = _mm256_cvtps_epi32( v );
std::array<int, 8> a;
_mm256_storeu_si256( ( __m256i* )a.data(), iv );
printf( "%s: %i, %i, %i, %i, %i, %i, %i, %i\n", name,
a[ 0 ], a[ 1 ], a[ 2 ], a[ 3 ], a[ 4 ], a[ 5 ], a[ 6 ], a[ 7 ] );
}
#define TEST( expr ) printShuffle( expr, #expr )
void printJavaRearranges()
{
const __m256 a = _mm256_setr_ps( 0, 1, 2, 3, 4, 5, 6, 7 );
const __m256 b = _mm256_sub_ps( a, _mm256_set1_ps( 8 ) );
TEST( _mm256_unpacklo_ps( a, b ) );
TEST( _mm256_unpackhi_ps( a, b ) );
TEST( _mm256_shuffle_ps( a, b, _MM_SHUFFLE(1,0,1,0) ) );
TEST( _mm256_shuffle_ps( a, b, _MM_SHUFFLE(3,2,3,2) ) );
TEST( _mm256_permute2f128_ps( a, b, 0x20 ) );
TEST( _mm256_permute2f128_ps( a, b, 0x31 ) );
}
Output:
_mm256_unpacklo_ps( a, b ): 0, -8, 1, -7, 4, -4, 5, -3
_mm256_unpackhi_ps( a, b ): 2, -6, 3, -5, 6, -2, 7, -1
_mm256_shuffle_ps( a, b, _MM_SHUFFLE(1,0,1,0) ): 0, 1, -8, -7, 4, 5, -4, -3
_mm256_shuffle_ps( a, b, _MM_SHUFFLE(3,2,3,2) ): 2, 3, -6, -5, 6, 7, -2, -1
_mm256_permute2f128_ps( a, b, 0x20 ): 0, 1, 2, 3, -8, -7, -6, -5
_mm256_permute2f128_ps( a, b, 0x31 ): 4, 5, 6, 7, -4, -3, -2, -1
The _mm256_permute2f128_ps instruction can selectively zero out lanes, Java's vector API probably can't do that. Fortunately, the immediate values in your source code don't zero out any pieces.
If you're lucky, the runtime might map these values (when they are known to JIT in advance and never change) into the corresponding AVX instructions.
I am trying to implement a machine learning algorithm (k-nn for example).As it stands my Main class, which essentially builds 8×8-pixel matrices into an array to be manipulated later. (See the data description and sample dataset.) As it stands my arrays are printing as a like so:
, Class Code: 7 DataSet:[0, 0, 3, 9, 15, 8, 0, 0, 0, 1, 15, 16, 16, 7, 0, 0, 0, 0, 5, 16, 16, 10, 4, 0, 0, 0, 3, 16, 16, 16, 9, 0, 0, 0, 0, 15, 14, 4, 0, 0, 0, 0, 0, 13, 5, 0, 0, 0, 0, 0, 1, 15, 3, 0, 0, 0, 0, 0, 4, 13, 0, 0, 0, 0, 7]
Now for my starting point I'm looking to try to implement a very basic kNN algorithm as something to build from but I am having trouble manipulating the datasets that are being outputted. I have been reading up on Foundations of Machine Learning by M. Mohri but it hasn't been of any help. My Main class for building my data:
import java.util.*;
import java.io.*;
public class Main {
static class Data {
int[] dataSet;
int classCode;
public Data(int[] dataSet, int label) {
this.dataSet = dataSet;
this.classCode = label;
}
#Override
public String toString() {
return "Class Code: " + classCode + " DataSet:" + Arrays.toString(dataSet) + "\n";
}
}
ArrayList<Data> dataSetList;
int[][] dataArray = new int[2810][65];
private void readFile(String csvFile) {
int instances = 0;
dataSetList = new ArrayList<>();
try {
Scanner scan = new Scanner(new BufferedReader(new FileReader(csvFile)));
while (scan.hasNext()) {
String line = scan.next();
String[] extractedDataFromFile = line.split(",");
for (int i = 0; i < extractedDataFromFile.length; i++) {
dataArray[instances][i] = Integer.parseInt(extractedDataFromFile[i]);
}
dataSetList.add(new Data(dataArray[instances], dataArray[instances][extractedDataFromFile.length - 1]));
instances++;
}
System.out.println(dataSetList.toString());
} catch (FileNotFoundException ex) {
System.out.println(ex.getMessage());
}
}
public static void main(String[] args) {
Main main = new Main();
main.readFile("dataset1.csv");
}
}
This is my first time experimenting with machine learning so any feedback or approach to this would be hugely appreciated.
EDIT//
I'm looking at a basic kNN implementation as a starting point whether someone can redirect me to material on implementing on a similar data set or an example using my current provided code. I apologize if my initial post was a little vague
I'm stitching a bitmap from a layout array, that puts the a larger bitmap together as a guide. Using multiple bitmaps into one bitmap. What I rotate the whole bitmap, my solution is to restitch it but have the array account for this rotation. The making of the bitmap is determined by the order of the array. The stitching assumes that the array starts from zero and that is the first index or the left top most corner and then goes to the right to the end and goes to beginning of the next row. I would like to have a 90, 180, 270, and 360 functions to call on. I'm thinking 360 is easy I iterate backwards. I'm using 11 by 11 which is constant.
For example
0, 1, 3, 4
5, 6, 7, 8,
9, 10, 11, 12
13, 14, 15, 16
when I rotate 90
4, 8, 12, 16
3, 7, 11, 15
1, 6, 10, 14
0, 5, 9, 13
Try this. This may have performance impact but its a simple solution.
import java.util.Arrays;
public class RotateMatrix {
public static void main(String[] args) {
int original[][] = { { 0, 1, 3, 4 }, { 5, 6, 7, 8 }, { 9, 10, 11, 12 },
{ 13, 14, 15, 16 } };
printArray(original);
System.out.println("After 90 Degree");
printArray(rotate(original, 90));
System.out.println("After 180 Degree");
printArray(rotate(original, 180));
System.out.println("After 270 Degree");
printArray(rotate(original, 270));
System.out.println("After 360 Degree");
printArray(rotate(original, 360));
}
private static int[][] rotate(int[][] original, int angle) {
int[][] output = original;
int times = 4 - angle/90;
for(int i=0; i<times; i++){
output = rotate(output);
}
return output;
}
private static int[][] rotate(int[][] original) {
int n = original.length;
int m = original[0].length;
int[][] output = new int[m][n];
for (int i = 0; i < n; i++)
for (int j = 0; j < m; j++)
output[j][n - 1 - i] = original[i][j];
return output;
}
private static void printArray(int[][] array) {
for (int i = 0; i < array.length; i++) {
System.out.println(Arrays.toString(array[i]));
}
}
}
This rotates the array anti-clockwise direction just as in your example. However if you want to change this to clockwise just change int times = 4 - angle/90; to int times = angle/90; in rotate(int[][] original, int angle) method.
I'm trying to set items from a method called FootballClub and so far it's fine.
but then I created an arrayList from it and I somehow can't find a way to store this information into a JTable.
The problem is that i cant find a way to set a fixed number of rows
Here is my code:
Class StartLeague:
import javax.swing.*;
import javax.swing.table.*;
import java.awt.*;
public class startLeague implements LeagueManager{
//setting the frame and other components to appear
public startLeague(){
JButton createTeam = new JButton("Create Team");
JButton deleteTeam = new JButton("Delete Team");
JFrame frame = new JFrame("Premier League System");
JPanel panel = new JPanel();
frame.setSize(1280, 800);
frame.setVisible(true);
frame.add(panel);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
String col[] = {"Pos","Team","P", "W", "L", "D", "MP", "GF", "GA", "GD"};
panel.setLayout(new GridLayout(20, 20));
panel.add(createTeam);
panel.add(deleteTeam);
panel.add(new JLabel(""));
//JLabels to fill the space
}
}
FootBall Club Class:
import java.util.ArrayList;
public class FootballClub extends SportsClub{
FootballClub(int position, String name, int points, int wins, int defeats, int draws, int totalMatches, int goalF, int goalA, int goalD){
this.position = position;
this.name = name;
this.points = points;
this.wins = wins;
this.defeats = defeats;
this.draws = draws;
this.totalMatches = totalMatches;
this.goalF = goalF;
this.goalA = goalA;
this.goalD = goalD;
}
The SportsClub Class(abstract):
abstract class SportsClub {
int position;
String name;
int points;
int wins;
int defeats;
int draws;
int totalMatches;
int goalF;
int goalA;
int goalD;
}
And finally, LeagueManager, which is an interface:
import java.util.ArrayList;
public interface LeagueManager {
ArrayList<FootballClub> originalLeagueTable = new ArrayList<FootballClub>();
FootballClub arsenal = new FootballClub(1, "Arsenal", 35, 11, 2, 2, 15, 30, 11, 19);
FootballClub liverpool = new FootballClub(2, "Liverpool", 30, 9, 3, 3, 15, 34, 18, 16);
FootballClub chelsea = new FootballClub(3, "Chelsea", 30, 9, 2, 2, 15, 30, 11, 19);
FootballClub mCity = new FootballClub(4, "Man City", 29, 9, 2, 4, 15, 41, 15, 26);
FootballClub everton = new FootballClub(5, "Everton", 28, 7, 1, 7, 15, 23, 14, 9);
FootballClub tot = new FootballClub(6, "Tottenham", 27, 8, 4, 3, 15, 15, 16, -1);
FootballClub newcastle = new FootballClub(7, "Newcastle", 26, 8, 5, 2, 15, 20, 21, -1);
FootballClub south = new FootballClub(8, "Southampton", 23, 6, 4, 5, 15, 19, 14, 5);
}
Can somebody please help me?
I've trying and trying for days.
Thank you.
"The problem is that i cant find a way to set a fixed number of rows"
You don't need to set the number of rows. Use a TableModel. A DefaultTableModel in particular.
String col[] = {"Pos","Team","P", "W", "L", "D", "MP", "GF", "GA", "GD"};
DefaultTableModel tableModel = new DefaultTableModel(col, 0);
// The 0 argument is number rows.
JTable table = new JTable(tableModel);
Then you can add rows to the tableModel with an Object[]
Object[] objs = {1, "Arsenal", 35, 11, 2, 2, 15, 30, 11, 19};
tableModel.addRow(objs);
You can loop to add your Object[] arrays.
Note: JTable does not currently allow instantiation with the input data as an ArrayList. It must be a Vector or an array.
See JTable and DefaultTableModel. Also, How to Use JTable tutorial
"I created an arrayList from it and I somehow can't find a way to store this information into a JTable."
You can do something like this to add the data
ArrayList<FootballClub> originalLeagueList = new ArrayList<FootballClub>();
originalLeagueList.add(new FootballClub(1, "Arsenal", 35, 11, 2, 2, 15, 30, 11, 19));
originalLeagueList.add(new FootballClub(2, "Liverpool", 30, 9, 3, 3, 15, 34, 18, 16));
originalLeagueList.add(new FootballClub(3, "Chelsea", 30, 9, 2, 2, 15, 30, 11, 19));
originalLeagueList.add(new FootballClub(4, "Man City", 29, 9, 2, 4, 15, 41, 15, 26));
originalLeagueList.add(new FootballClub(5, "Everton", 28, 7, 1, 7, 15, 23, 14, 9));
originalLeagueList.add(new FootballClub(6, "Tottenham", 27, 8, 4, 3, 15, 15, 16, -1));
originalLeagueList.add(new FootballClub(7, "Newcastle", 26, 8, 5, 2, 15, 20, 21, -1));
originalLeagueList.add(new FootballClub(8, "Southampton", 23, 6, 4, 5, 15, 19, 14, 5));
for (int i = 0; i < originalLeagueList.size(); i++){
int position = originalLeagueList.get(i).getPosition();
String name = originalLeagueList.get(i).getName();
int points = originalLeagueList.get(i).getPoinst();
int wins = originalLeagueList.get(i).getWins();
int defeats = originalLeagueList.get(i).getDefeats();
int draws = originalLeagueList.get(i).getDraws();
int totalMatches = originalLeagueList.get(i).getTotalMathces();
int goalF = originalLeagueList.get(i).getGoalF();
int goalA = originalLeagueList.get(i).getGoalA();
in ttgoalD = originalLeagueList.get(i).getTtgoalD();
Object[] data = {position, name, points, wins, defeats, draws,
totalMatches, goalF, goalA, ttgoalD};
tableModel.add(data);
}
You probably need to use a TableModel (Oracle's tutorial here)
How implements your own TableModel
public class FootballClubTableModel extends AbstractTableModel {
private List<FootballClub> clubs ;
private String[] columns ;
public FootBallClubTableModel(List<FootballClub> aClubList){
super();
clubs = aClubList ;
columns = new String[]{"Pos","Team","P", "W", "L", "D", "MP", "GF", "GA", "GD"};
}
// Number of column of your table
public int getColumnCount() {
return columns.length ;
}
// Number of row of your table
public int getRowsCount() {
return clubs.size();
}
// The object to render in a cell
public Object getValueAt(int row, int col) {
FootballClub club = clubs.get(row);
switch(col) {
case 0: return club.getPosition();
// to complete here...
default: return null;
}
}
// Optional, the name of your column
public String getColumnName(int col) {
return columns[col] ;
}
}
You maybe need to override anothers methods of TableModel, depends on what you want to do, but here is the essential methods to understand and implements :)
Use it like this
List<FootballClub> clubs = getFootballClub();
TableModel model = new FootballClubTableModel(clubs);
JTable table = new JTable(model);
Hope it help !
I created an arrayList from it and I somehow can't find a way to store this information into a JTable.
The DefaultTableModel doesn't support displaying custom Objects stored in an ArrayList. You need to create a custom TableModel.
You can check out the Bean Table Model. It is a reusable class that will use reflection to find all the data in your FootballClub class and display in a JTable.
Or, you can extend the Row Table Model found in the above link to make is easier to create your own custom TableModel by implementing a few methods. The JButtomTableModel.java source code give a complete example of how you can do this.
You can do something like what i did with my List< Future< String > > or any other Arraylist, Type returned from other class called PingScan that returns List> because it implements service executor. Anyway the code down note that you can use foreach and retrieve data from the List.
PingScan p = new PingScan();
List<Future<String>> scanResult = p.checkThisIP(jFormattedTextField1.getText(), jFormattedTextField2.getText());
for (final Future<String> f : scanResult) {
try {
if (f.get() instanceof String) {
String ip = f.get();
Object[] data = {ip};
tableModel.addRow(data);
}
} catch (InterruptedException | ExecutionException ex) {
Logger.getLogger(gui.class.getName()).log(Level.SEVERE, null, ex);
}
}
Basic method for beginners like me.
public void loadDataToJtable(ArrayList<String> liste){
rows = table.getRowCount();
cols = table.getColumnCount();
for (int i = 0; i < rows ; i++) {
for ( int k = 0; k < cols ; k++) {
for (int h = 0; h < list1.size(); h++) {
String b = list1.get(h);
b = table.getValueAt(i, k).toString();
}
}
}
}
I tried adding another set of values to the demo example of stacked bar charts with achartengine, but the new values introduced by me don't appear on the chart. Is Stacking bars limited to two bars?
public Intent getIntent(Context context) {
String[] titles = new String[] { "Good", "Defect", "Repair" };
List<double[]> values = new ArrayList<double[]>();
values.add(new double[] { 14230, 12300, 1424, 15240, 15900, 19200,
22030, 21200, 19500, 15500, 12060, 14000 });
values.add(new double[] { 14230, 12300, 14240, 15244, 15900, 19200,
22030, 21200, 19500, 15500, 12600, 14000 });
values.add(new double[] { 5230, 7300, 9240, 10540, 7900, 9200, 12030,
11200, 9500, 10500, 11600, 13500 });
int[] colors = new int[] { Color.GREEN, Color.YELLOW, Color.RED };
XYMultipleSeriesRenderer renderer = buildBarRenderer(colors);
setChartSettings(renderer, "Machine Efficiency Rates",
"Machine", "NET produce", 0.5, 12.5, 0, 24000, Color.GRAY,
Color.LTGRAY);
renderer.getSeriesRendererAt(0).setDisplayChartValues(true);
renderer.getSeriesRendererAt(1).setDisplayChartValues(true);
renderer.getSeriesRendererAt(2).setDisplayChartValues(true);
renderer.setXLabels(12);
renderer.setYLabels(5);
renderer.setXLabelsAlign(Align.LEFT);
renderer.setYLabelsAlign(Align.LEFT);
renderer.setPanEnabled(true, false);
renderer.setZoomEnabled(true);
renderer.setZoomRate(1.1f);
renderer.setBarSpacing(0.5f);
return ChartFactory.getBarChartIntent(context,
buildBarDataset(titles, values), renderer, Type.STACKED);
}
There is a misunderstanding in the way AChartEngine displays stacked bar charts. It doesn't really stack them, but displays them one over the other. This means that you will want to always add the bigger values first then the smaller and so on as it renders the first series, the second one above the first and so on.
UPDATE: As of version 1.2.0, there is the new HEAP stacked bar charts, which are displayed in the manner you need.
I could not find a good answer. However, you can use the getCombinedXYChartIntent
to create a multiple stacked bars.
I use the CombinedTemperatureChart as a template and modified to achieve this.
The initial raw code is this
package org.achartengine.chartdemo.demo.chart;
import java.util.ArrayList;
import java.util.List;
import org.achartengine.ChartFactory;
import org.achartengine.chart.BarChart;
import org.achartengine.chart.BubbleChart;
import org.achartengine.chart.CubicLineChart;
import org.achartengine.chart.LineChart;
import org.achartengine.chart.PointStyle;
import org.achartengine.model.XYMultipleSeriesDataset;
import org.achartengine.model.XYSeries;
import org.achartengine.model.XYValueSeries;
import org.achartengine.renderer.XYMultipleSeriesRenderer;
import org.achartengine.renderer.XYSeriesRenderer;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.Paint.Align;
/**
* Combined temperature demo chart.
*/
public class CombinedTemperatureChart extends AbstractDemoChart {
/**
* Returns the chart name.
*
* #return the chart name
*/
public String getName() {
return "Combined temperature";
}
/**
* Returns the chart description.
*
* #return the chart description
*/
public String getDesc() {
return "The average temperature in 2 Greek islands, water temperature and sun shine hours (combined chart)";
}
/**
* Executes the chart demo.
*
* #param context the context
* #return the built intent
*/
public Intent execute(Context context) {
String[] titles = new String[] { "Crete Air Temperature", "Skiathos Air Temperature" };
List<double[]> x = new ArrayList<double[]>();
for (int i = 0; i < titles.length; i++) {
x.add(new double[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 });
}
List<double[]> values = new ArrayList<double[]>();
values.add(new double[] { 12.3, 12.5, 13.8, 16.8, 20.4, 24.4, 26.4, 26.1, 23.6, 20.3, 17.2, 13.9 });
values.add(new double[] { 9, 10, 11, 15, 19, 23, 26, 25, 22, 18, 13, 10 });
int[] colors = new int[] { Color.GREEN, Color.rgb(200, 150, 0) };
PointStyle[] styles = new PointStyle[] { PointStyle.CIRCLE, PointStyle.DIAMOND };
XYMultipleSeriesRenderer renderer = buildRenderer(colors, styles);
//renderer.setPointSize(5.5f);
int length = renderer.getSeriesRendererCount();
for (int i = 0; i < length; i++) {
XYSeriesRenderer r = (XYSeriesRenderer) renderer.getSeriesRendererAt(i);
r.setDisplayChartValues(true);
r.setChartValuesTextSize(25);
//r.setLineWidth(2);
r.setFillPoints(true);
}
setChartSettings(renderer, "Weather data", "Month", "Temperature", -1, 12.5, 0, 40,
Color.LTGRAY, Color.LTGRAY);
renderer.setXLabels(12);
renderer.setYLabels(10);
renderer.setShowGrid(true);
renderer.setXLabelsAlign(Align.RIGHT);
renderer.setYLabelsAlign(Align.RIGHT);
renderer.setZoomButtonsVisible(true);
renderer.setPanLimits(new double[] { -10, 20, -10, 40 });
renderer.setZoomLimits(new double[] { -10, 20, -10, 40 });
XYValueSeries sunSeries = new XYValueSeries("Sunshine hours");
sunSeries.add(0.5, 17);
sunSeries.add(1.5, 18);
sunSeries.add(2.5, 19);
sunSeries.add(3.5, 19);
sunSeries.add(4.5, 20.8);
sunSeries.add(5.5, 24.9);
sunSeries.add(6.5, 26);
sunSeries.add(7.5, 27.8);
sunSeries.add(8.5, 28.4);
sunSeries.add(9.5, 25.5);
sunSeries.add(10.5, 23.5);
sunSeries.add(11.5, 19.5);
XYSeriesRenderer lightRenderer = new XYSeriesRenderer();
lightRenderer.setColor(Color.YELLOW);
XYSeries waterSeries = new XYSeries("Water Temperature");
waterSeries.add(0.5, 16);
waterSeries.add(1.5, 15);
waterSeries.add(2.5, 16);
waterSeries.add(3.5, 17);
waterSeries.add(4.5, 20);
waterSeries.add(5.5, 23);
waterSeries.add(6.5, 25);
waterSeries.add(7.5, 25.5);
waterSeries.add(8.5, 26.5);
waterSeries.add(9.5, 24);
waterSeries.add(10.5, 22);
waterSeries.add(11.5, 18);
renderer.setBarSpacing(2);
renderer.setBarWidth(2);
XYSeriesRenderer waterRenderer = new XYSeriesRenderer();
waterRenderer.setColor(Color.argb(250, 0, 210, 250));
XYMultipleSeriesDataset dataset = buildDataset(titles, x, values);
dataset.addSeries(0, sunSeries);
dataset.addSeries(1, waterSeries);
renderer.setBarWidth(0.5f);
renderer.addSeriesRenderer(lightRenderer);
renderer.addSeriesRenderer(waterRenderer);
waterRenderer.setDisplayChartValues(true);
waterRenderer.setChartValuesTextSize(25);
lightRenderer.setDisplayChartValues(true);
lightRenderer.setChartValuesTextSize(25);
String[] types = new String[] { BarChart.TYPE, BarChart.TYPE, BarChart.TYPE, BarChart.TYPE };
Intent intent = ChartFactory.getCombinedXYChartIntent(context, dataset, renderer, types,
"Weather parameters");
return intent;
}
}
I hope someone still need this, it take a some time figure it out.
Unfortunately, I don't have the points to paste an image.