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java.lang.Objectorg.achartengine.chart.AbstractChart
org.achartengine.chart.XYChart
org.achartengine.chart.BarChart
public class BarChart
The bar chart rendering class.
Nested Class Summary | |
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static class |
BarChart.Type
The bar chart type enum. |
Field Summary | |
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protected BarChart.Type |
mType
The chart type. |
static java.lang.String |
TYPE
The constant to identify this chart type. |
Fields inherited from class org.achartengine.chart.XYChart |
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mDataset, mRenderer |
Constructor Summary | |
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BarChart(XYMultipleSeriesDataset dataset,
XYMultipleSeriesRenderer renderer,
BarChart.Type type)
Builds a new bar chart instance. |
Method Summary | |
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protected android.graphics.RectF[] |
clickableAreasForPoints(float[] points,
float yAxisValue,
int seriesIndex)
Returns the clickable areas for all passed points |
protected void |
drawBar(android.graphics.Canvas canvas,
float xMin,
float yMin,
float xMax,
float yMax,
float halfDiffX,
int seriesNr,
int seriesIndex,
android.graphics.Paint paint)
Draws a bar. |
protected void |
drawChartValuesText(android.graphics.Canvas canvas,
XYSeries series,
SimpleSeriesRenderer renderer,
android.graphics.Paint paint,
float[] points,
int seriesIndex)
The graphical representation of the series values as text. |
void |
drawLegendShape(android.graphics.Canvas canvas,
SimpleSeriesRenderer renderer,
float x,
float y,
int seriesIndex,
android.graphics.Paint paint)
The graphical representation of the legend shape. |
void |
drawSeries(android.graphics.Canvas canvas,
android.graphics.Paint paint,
float[] points,
SimpleSeriesRenderer seriesRenderer,
float yAxisValue,
int seriesIndex)
The graphical representation of a series. |
java.lang.String |
getChartType()
Returns the chart type identifier. |
protected float |
getCoeficient()
Returns the value of a constant used to calculate the half-distance. |
double |
getDefaultMinimum()
Returns the default axis minimum. |
protected float |
getHalfDiffX(float[] points,
int length,
int seriesNr)
Calculates and returns the half-distance in the graphical representation of 2 consecutive points. |
int |
getLegendShapeWidth(int seriesIndex)
Returns the legend shape width. |
protected boolean |
isRenderNullValues()
Returns if the chart should display the null values. |
Methods inherited from class org.achartengine.chart.XYChart |
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draw, drawSeries, drawText, drawXLabels, drawXTextLabels, getCalcRange, getDataset, getLabel, getPointsChart, getRenderer, getScreenR, getSeriesAndPointForScreenCoordinate, isRenderPoints, setCalcRange, setDatasetRenderer, setScreenR, toRealPoint, toRealPoint, toScreenPoint, toScreenPoint |
Methods inherited from class org.achartengine.chart.AbstractChart |
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drawBackground, drawLabel, drawLegend, drawPath, getExceed, getLegendSize, isVertical |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final java.lang.String TYPE
protected BarChart.Type mType
Constructor Detail |
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public BarChart(XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, BarChart.Type type)
dataset
- the multiple series datasetrenderer
- the multiple series renderertype
- the bar chart typeMethod Detail |
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protected android.graphics.RectF[] clickableAreasForPoints(float[] points, float yAxisValue, int seriesIndex)
XYChart
clickableAreasForPoints
in class XYChart
points
- the array of pointsyAxisValue
- the minimum value of the y axisseriesIndex
- the index of the series to which the points belong
public void drawSeries(android.graphics.Canvas canvas, android.graphics.Paint paint, float[] points, SimpleSeriesRenderer seriesRenderer, float yAxisValue, int seriesIndex)
drawSeries
in class XYChart
canvas
- the canvas to paint topaint
- the paint to be used for drawingpoints
- the array of points to be used for drawing the seriesseriesRenderer
- the series rendereryAxisValue
- the minimum value of the y axisseriesIndex
- the index of the series currently being drawnprotected void drawBar(android.graphics.Canvas canvas, float xMin, float yMin, float xMax, float yMax, float halfDiffX, int seriesNr, int seriesIndex, android.graphics.Paint paint)
canvas
- the canvasxMin
- the X axis minimumyMin
- the Y axis minimumxMax
- the X axis maximumyMax
- the Y axis maximumhalfDiffX
- half the size of a barseriesNr
- the total number of seriesseriesIndex
- the current series indexpaint
- the paintprotected void drawChartValuesText(android.graphics.Canvas canvas, XYSeries series, SimpleSeriesRenderer renderer, android.graphics.Paint paint, float[] points, int seriesIndex)
drawChartValuesText
in class XYChart
canvas
- the canvas to paint toseries
- the series to be paintedrenderer
- the series rendererpaint
- the paint to be used for drawingpoints
- the array of points to be used for drawing the seriesseriesIndex
- the index of the series currently being drawnpublic int getLegendShapeWidth(int seriesIndex)
getLegendShapeWidth
in class AbstractChart
seriesIndex
- the series index
public void drawLegendShape(android.graphics.Canvas canvas, SimpleSeriesRenderer renderer, float x, float y, int seriesIndex, android.graphics.Paint paint)
drawLegendShape
in class AbstractChart
canvas
- the canvas to paint torenderer
- the series rendererx
- the x value of the point the shape should be drawn aty
- the y value of the point the shape should be drawn atseriesIndex
- the series indexpaint
- the paint to be used for drawingprotected float getHalfDiffX(float[] points, int length, int seriesNr)
points
- the pointslength
- the points lengthseriesNr
- the series number
protected float getCoeficient()
protected boolean isRenderNullValues()
isRenderNullValues
in class XYChart
public double getDefaultMinimum()
getDefaultMinimum
in class XYChart
public java.lang.String getChartType()
getChartType
in class XYChart
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