Beispiel:
Inhalt:
Optimale Datenstruktur (Datenbank):
Y-Achse | Kategorie | X-Achse |
---|
Beverages | 2017 | 550 |
Beverages | 2018 | 550 |
Optimale Objektstruktur (Java):
Code Block |
---|
language | java |
---|
theme | Eclipse |
---|
firstline | 1 |
---|
linenumbers | true |
---|
|
public class BarChartObject {
private String Y_Achseyvalue;
private String kategoriecategory;
private StringInteger X_Achsexvalue;
public String getY_AchsegetYvalue() {
return this.Y_Achseyvalue;
}
public void setY_AchsesetYvalue(final String y_Achseyvalue) {
this.Y_Achseyvalue = y_Achseyvalue;
}
public String getKategoriegetCategory() {
return this.kategoriecategory;
}
public void setKategoriesetCategory(final String kategoriecategory) {
this.kategoriecategory = kategoriecategory;
}
public StringInteger getX_AchsegetXvalue() {
return this.X_Achsexvalue;
}
public void setX_AchsesetXvalue(final StringInteger x_Achsexvalue) {
this.X_Achsexvalue = x_Achsexvalue;
}
} |
Beispiel füllen der Daten:
Code Block |
---|
language | java |
---|
theme | Eclipse |
---|
firstline | 1 |
---|
linenumbers | true |
---|
|
//Erstellen Model und hinzufügen der Kategorien
final XdevBarChartModelChartModel model = new XdevBarChartModel();
model.addCategory("2017");
model.addCategory("2018"ChartModel.New()
.addColumn(Column.New(Type.STRING, "year", "Jahr"))
.addColumn(Column.New(Type.NUMBER, "iphone", "iPhone"))
.addColumn(Column.New(Type.NUMBER, "android", "Android"));
//Füllen der Items
model.addItemaddRow("Beverages2014", "2017"1500, 5601200);
model.addItemaddRow("Beverages2015", "2018"805, 560700);
model.addItemaddRow("Condiments2016", "2017"920, 530600);
model.addItemaddRow("Condiments2017", "2018"1250, 5301500);
//Setzen des Models
barChart.setModel(model); |
API und Methoden:
...
...
language | java |
---|
theme | Eclipse |
---|
firstline | 1 |
---|
title | model.addCategory(String value); |
---|
linenumbers | true |
---|
...
|
---|
Orientation | The orientation of the chart. When set to'vertical' , rotates the axes of the chart so that (for instance) a column chart becomes a bar chart, and an area chart grows rightward instead of up: |
...
model.addItem("Beverages", "2017", 560);
//Parameter 1 ("Beverages"): Wert, welchen in der X-Achse angezeigt werden soll
//Parameter 2 ("2017"): Zuweisung zur jeweiligen vorher festgelegten Kategorie (Kategoriemapping)
//Parameter 3 (530): Wert für die Y-Achse. Zulässige Datentypen: Integer, Double,
Konfigurieren der Titel
Code Block |
---|
language | java |
---|
theme | Eclipse |
---|
firstline | 1 |
---|
linenumbers | true |
---|
|
//Erstellen einer Konfiguration für das Chart
XdevBarChartConfig config = new XdevBarChartConfig();
//Setzen Untertitel
config.setSubtitle("Subtitle");
//Setzen Charttitel
config.setTitle("Sales Overview");
|
Beispiel konfigurieren der Achsen
...
language | java |
---|
theme | Eclipse |
---|
firstline | 1 |
---|
linenumbers | true |
---|
...
this.barChart.setOrientation(Orientation.VERTICAL); |
|
StackMode | The options for isStacked are: false — elements will not stack. This is the default option.true — stacks elements for all series at each domain value.'percent' — stacks elements for all series at each domain value and rescales them such that they add up to 100%, with each element's value calculated as a percentage of 100%.'relative' — stacks elements for all series at each domain value and rescales them such that they add up to 1, with each element's value calculated as a fraction of 1.'absolute' — functions the same as isStacked: true .
Code Block |
---|
| this.barChart.setStackMode(StackMode.TRUE); |
|
Konfiguration von Texten und Legenden siehe API Allgemein