本文整理汇总了Java中com.github.mikephil.charting.interfaces.datasets.ILineDataSet.getEntryForXIndex方法的典型用法代码示例。如果您正苦于以下问题：Java ILineDataSet.getEntryForXIndex方法的具体用法？Java ILineDataSet.getEntryForXIndex怎么用？Java ILineDataSet.getEntryForXIndex使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类com.github.mikephil.charting.interfaces.datasets.ILineDataSet的用法示例。
在下文中一共展示了ILineDataSet.getEntryForXIndex方法的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: removeLastEntry
import com.github.mikephil.charting.interfaces.datasets.ILineDataSet; //导入方法依赖的package包/类
private void removeLastEntry() {
LineData data = mChart.getData();
if(data != null) {
ILineDataSet set = data.getDataSetByIndex(0);
if (set != null) {
Entry e = set.getEntryForXIndex(set.getEntryCount() - 1);
data.removeEntry(e, 0);
// or remove by index
// mData.removeEntry(xIndex, dataSetIndex);
mChart.notifyDataSetChanged();
mChart.invalidate();
}
}
}
示例2: drawCubicBezier
import com.github.mikephil.charting.interfaces.datasets.ILineDataSet; //导入方法依赖的package包/类
protected void drawCubicBezier(Canvas c, ILineDataSet dataSet) {
Transformer trans = mChart.getTransformer(dataSet.getAxisDependency());
int entryCount = dataSet.getEntryCount();
Entry entryFrom = dataSet.getEntryForXIndex((mMinX < 0) ? 0 : mMinX, DataSet.Rounding.DOWN);
Entry entryTo = dataSet.getEntryForXIndex(mMaxX, DataSet.Rounding.UP);
int diff = (entryFrom == entryTo) ? 1 : 0;
int minx = Math.max(dataSet.getEntryIndex(entryFrom) - diff - 1, 0);
int maxx = Math.min(Math.max(minx + 2, dataSet.getEntryIndex(entryTo) + 1), entryCount);
float phaseX = Math.max(0.f, Math.min(1.f, mAnimator.getPhaseX()));
float phaseY = mAnimator.getPhaseY();
float intensity = dataSet.getCubicIntensity();
cubicPath.reset();
int size = (int) Math.ceil((maxx - minx) * phaseX + minx);
if (size - minx >= 2) {
float prevDx = 0f;
float prevDy = 0f;
float curDx = 0f;
float curDy = 0f;
Entry prevPrev = dataSet.getEntryForIndex(minx);
Entry prev = prevPrev;
Entry cur = prev;
Entry next = dataSet.getEntryForIndex(minx + 1);
// let the spline start
cubicPath.moveTo(cur.getXIndex(), cur.getVal() * phaseY);
for (int j = minx + 1, count = Math.min(size, entryCount); j < count; j++) {
prevPrev = dataSet.getEntryForIndex(j == 1 ? 0 : j - 2);
prev = dataSet.getEntryForIndex(j - 1);
cur = dataSet.getEntryForIndex(j);
next = entryCount > j + 1 ? dataSet.getEntryForIndex(j + 1) : cur;
prevDx = (cur.getXIndex() - prevPrev.getXIndex()) * intensity;
prevDy = (cur.getVal() - prevPrev.getVal()) * intensity;
curDx = (next.getXIndex() - prev.getXIndex()) * intensity;
curDy = (next.getVal() - prev.getVal()) * intensity;
cubicPath.cubicTo(prev.getXIndex() + prevDx, (prev.getVal() + prevDy) * phaseY,
cur.getXIndex() - curDx,
(cur.getVal() - curDy) * phaseY, cur.getXIndex(), cur.getVal() * phaseY);
}
}
// if filled is enabled, close the path
if (dataSet.isDrawFilledEnabled()) {
cubicFillPath.reset();
cubicFillPath.addPath(cubicPath);
// create a new path, this is bad for performance
drawCubicFill(mBitmapCanvas, dataSet, cubicFillPath, trans,
minx, size);
}
mRenderPaint.setColor(dataSet.getColor());
mRenderPaint.setStyle(Paint.Style.STROKE);
trans.pathValueToPixel(cubicPath);
mBitmapCanvas.drawPath(cubicPath, mRenderPaint);
mRenderPaint.setPathEffect(null);
}
示例3: drawCubicBezier
import com.github.mikephil.charting.interfaces.datasets.ILineDataSet; //导入方法依赖的package包/类
protected void drawCubicBezier(Canvas c, ILineDataSet dataSet) {
Transformer trans = mChart.getTransformer(dataSet.getAxisDependency());
int entryCount = dataSet.getEntryCount();
Entry entryFrom = dataSet.getEntryForXIndex((mMinX < 0) ? 0 : mMinX, DataSet.Rounding.DOWN);
Entry entryTo = dataSet.getEntryForXIndex(mMaxX, DataSet.Rounding.UP);
int diff = (entryFrom == entryTo) ? 1 : 0;
int minx = Math.max(dataSet.getEntryIndex(entryFrom) - diff, 0);
int maxx = Math.min(Math.max(minx + 2, dataSet.getEntryIndex(entryTo) + 1), entryCount);
float phaseX = Math.max(0.f, Math.min(1.f, mAnimator.getPhaseX()));
float phaseY = mAnimator.getPhaseY();
float intensity = dataSet.getCubicIntensity();
cubicPath.reset();
int size = (int) Math.ceil((maxx - minx) * phaseX + minx);
if (size - minx >= 2) {
float prevDx = 0f;
float prevDy = 0f;
float curDx = 0f;
float curDy = 0f;
Entry prevPrev = dataSet.getEntryForIndex(minx);
Entry prev = prevPrev;
Entry cur = prev;
Entry next = dataSet.getEntryForIndex(minx + 1);
// let the spline start
cubicPath.moveTo(cur.getXIndex(), cur.getVal() * phaseY);
for (int j = minx + 1, count = Math.min(size, entryCount); j < count; j++) {
prevPrev = dataSet.getEntryForIndex(j == 1 ? 0 : j - 2);
prev = dataSet.getEntryForIndex(j - 1);
cur = dataSet.getEntryForIndex(j);
next = entryCount > j + 1 ? dataSet.getEntryForIndex(j + 1) : cur;
prevDx = (cur.getXIndex() - prevPrev.getXIndex()) * intensity;
prevDy = (cur.getVal() - prevPrev.getVal()) * intensity;
curDx = (next.getXIndex() - prev.getXIndex()) * intensity;
curDy = (next.getVal() - prev.getVal()) * intensity;
cubicPath.cubicTo(prev.getXIndex() + prevDx, (prev.getVal() + prevDy) * phaseY,
cur.getXIndex() - curDx,
(cur.getVal() - curDy) * phaseY, cur.getXIndex(), cur.getVal() * phaseY);
}
}
// if filled is enabled, close the path
if (dataSet.isDrawFilledEnabled()) {
cubicFillPath.reset();
cubicFillPath.addPath(cubicPath);
// create a new path, this is bad for performance
drawCubicFill(mBitmapCanvas, dataSet, cubicFillPath, trans,
minx, size);
}
mRenderPaint.setColor(dataSet.getColor());
mRenderPaint.setStyle(Paint.Style.STROKE);
trans.pathValueToPixel(cubicPath);
mBitmapCanvas.drawPath(cubicPath, mRenderPaint);
mRenderPaint.setPathEffect(null);
}
示例4: drawValues
import com.github.mikephil.charting.interfaces.datasets.ILineDataSet; //导入方法依赖的package包/类
@Override
public void drawValues(Canvas c) {
if (mChart.getLineData().getYValCount() < mChart.getMaxVisibleCount()
* mViewPortHandler.getScaleX()) {
List<ILineDataSet> dataSets = mChart.getLineData().getDataSets();
for (int i = 0; i < dataSets.size(); i++) {
ILineDataSet dataSet = dataSets.get(i);
if (!dataSet.isDrawValuesEnabled() || dataSet.getEntryCount() == 0)
continue;
// apply the text-styling defined by the DataSet
applyValueTextStyle(dataSet);
Transformer trans = mChart.getTransformer(dataSet.getAxisDependency());
// make sure the values do not interfear with the circles
int valOffset = (int) (dataSet.getCircleRadius() * 1.75f);
if (!dataSet.isDrawCirclesEnabled())
valOffset = valOffset / 2;
int entryCount = dataSet.getEntryCount();
Entry entryFrom = dataSet.getEntryForXIndex((mMinX < 0) ? 0 : mMinX, DataSet.Rounding.DOWN);
Entry entryTo = dataSet.getEntryForXIndex(mMaxX, DataSet.Rounding.UP);
int minx = Math.max(dataSet.getEntryIndex(entryFrom), 0);
int maxx = Math.min(dataSet.getEntryIndex(entryTo) + 1, entryCount);
float[] positions = trans.generateTransformedValuesLine(
dataSet, mAnimator.getPhaseX(), mAnimator.getPhaseY(), minx, maxx);
for (int j = 0; j < positions.length; j += 2) {
float x = positions[j];
float y = positions[j + 1];
if (!mViewPortHandler.isInBoundsRight(x))
break;
if (!mViewPortHandler.isInBoundsLeft(x) || !mViewPortHandler.isInBoundsY(y))
continue;
Entry entry = dataSet.getEntryForIndex(j / 2 + minx);
drawValue(c, dataSet.getValueFormatter(), entry.getVal(), entry, i, x,
y - valOffset, dataSet.getValueTextColor(j / 2));
}
}
}
}
示例5: drawCircles
import com.github.mikephil.charting.interfaces.datasets.ILineDataSet; //导入方法依赖的package包/类
protected void drawCircles(Canvas c) {
mRenderPaint.setStyle(Paint.Style.FILL);
float phaseX = mAnimator.getPhaseX();
float phaseY = mAnimator.getPhaseY();
List<ILineDataSet> dataSets = mChart.getLineData().getDataSets();
for (int i = 0; i < dataSets.size(); i++) {
ILineDataSet dataSet = dataSets.get(i);
if (!dataSet.isVisible() || !dataSet.isDrawCirclesEnabled() ||
dataSet.getEntryCount() == 0)
continue;
mCirclePaintInner.setColor(dataSet.getCircleHoleColor());
Transformer trans = mChart.getTransformer(dataSet.getAxisDependency());
int entryCount = dataSet.getEntryCount();
Entry entryFrom = dataSet.getEntryForXIndex((mMinX < 0) ? 0 : mMinX, DataSet.Rounding.DOWN);
Entry entryTo = dataSet.getEntryForXIndex(mMaxX, DataSet.Rounding.UP);
int minx = Math.max(dataSet.getEntryIndex(entryFrom), 0);
int maxx = Math.min(dataSet.getEntryIndex(entryTo) + 1, entryCount);
CircleBuffer buffer = mCircleBuffers[i];
buffer.setPhases(phaseX, phaseY);
buffer.limitFrom(minx);
buffer.limitTo(maxx);
buffer.feed(dataSet);
trans.pointValuesToPixel(buffer.buffer);
float halfsize = dataSet.getCircleRadius() / 2f;
for (int j = 0, count = (int) Math.ceil((maxx - minx) * phaseX + minx) * 2; j < count; j += 2) {
float x = buffer.buffer[j];
float y = buffer.buffer[j + 1];
if (!mViewPortHandler.isInBoundsRight(x))
break;
// make sure the circles don't do shitty things outside
// bounds
if (!mViewPortHandler.isInBoundsLeft(x) || !mViewPortHandler.isInBoundsY(y))
continue;
int circleColor = dataSet.getCircleColor(j / 2 + minx);
mRenderPaint.setColor(circleColor);
c.drawCircle(x, y, dataSet.getCircleRadius(),
mRenderPaint);
if (dataSet.isDrawCircleHoleEnabled()
&& circleColor != mCirclePaintInner.getColor())
c.drawCircle(x, y,
halfsize,
mCirclePaintInner);
}
}
}
示例6: drawHorizontalBezier
import com.github.mikephil.charting.interfaces.datasets.ILineDataSet; //导入方法依赖的package包/类
/**
* Draws a cubic line.
*
* @param c
* @param dataSet
*/
protected void drawHorizontalBezier(Canvas c, ILineDataSet dataSet) {
Transformer trans = mChart.getTransformer(dataSet.getAxisDependency());
int entryCount = dataSet.getEntryCount();
Entry entryFrom = dataSet.getEntryForXIndex((mMinX < 0) ? 0 : mMinX, DataSet.Rounding.DOWN);
Entry entryTo = dataSet.getEntryForXIndex(mMaxX, DataSet.Rounding.UP);
int diff = (entryFrom == entryTo) ? 1 : 0;
int minx = Math.max(dataSet.getEntryIndex(entryFrom) - diff, 0);
int maxx = Math.min(Math.max(minx + 2, dataSet.getEntryIndex(entryTo) + 1), entryCount);
float phaseX = Math.max(0.f, Math.min(1.f, mAnimator.getPhaseX()));
float phaseY = mAnimator.getPhaseY();
cubicPath.reset();
int size = (int) Math.ceil((maxx - minx) * phaseX + minx);
if (size - minx >= 2) {
Entry prev = dataSet.getEntryForIndex(minx);
Entry cur = prev;
// let the spline start
cubicPath.moveTo(cur.getXIndex(), cur.getVal() * phaseY);
for (int j = minx + 1, count = Math.min(size, entryCount); j < count; j++) {
prev = dataSet.getEntryForIndex(j - 1);
cur = dataSet.getEntryForIndex(j);
final float cpx = (float)(prev.getXIndex())
+ (float)(cur.getXIndex() - prev.getXIndex()) / 2.0f;
cubicPath.cubicTo(
cpx, prev.getVal() * phaseY,
cpx, cur.getVal() * phaseY,
cur.getXIndex(), cur.getVal() * phaseY);
}
}
// if filled is enabled, close the path
if (dataSet.isDrawFilledEnabled()) {
cubicFillPath.reset();
cubicFillPath.addPath(cubicPath);
// create a new path, this is bad for performance
drawCubicFill(mBitmapCanvas, dataSet, cubicFillPath, trans,
minx, size);
}
mRenderPaint.setColor(dataSet.getColor());
mRenderPaint.setStyle(Paint.Style.STROKE);
trans.pathValueToPixel(cubicPath);
mBitmapCanvas.drawPath(cubicPath, mRenderPaint);
mRenderPaint.setPathEffect(null);
}
示例7: drawValues
import com.github.mikephil.charting.interfaces.datasets.ILineDataSet; //导入方法依赖的package包/类
@Override
public void drawValues(Canvas c) {
if (mChart.getLineData().getYValCount() < mChart.getMaxVisibleCount()
* mViewPortHandler.getScaleX()) {
List<ILineDataSet> dataSets = mChart.getLineData().getDataSets();
for (int i = 0; i < dataSets.size(); i++) {
ILineDataSet dataSet = dataSets.get(i);
if (!dataSet.isDrawValuesEnabled() || dataSet.getEntryCount() == 0)
continue;
// apply the text-styling defined by the DataSet
applyValueTextStyle(dataSet);
Transformer trans = mChart.getTransformer(dataSet.getAxisDependency());
// make sure the values do not interfear with the circles
int valOffset = (int) (dataSet.getCircleRadius() * 1.75f);
if (!dataSet.isDrawCirclesEnabled())
valOffset = valOffset / 2;
int entryCount = dataSet.getEntryCount();
Entry entryFrom = dataSet.getEntryForXIndex((mMinX < 0) ? 0 : mMinX,
DataSet.Rounding.DOWN);
Entry entryTo = dataSet.getEntryForXIndex(mMaxX, DataSet.Rounding.UP);
int diff = (entryFrom == entryTo) ? 1 : 0;
if (dataSet.getMode() == LineDataSet.Mode.CUBIC_BEZIER)
diff += 1;
int minx = Math.max(dataSet.getEntryIndex(entryFrom) - diff, 0);
int maxx = Math.min(Math.max(minx + 2, dataSet.getEntryIndex(entryTo) + 1), entryCount);
float[] positions = trans.generateTransformedValuesLine(
dataSet, mAnimator.getPhaseX(), mAnimator.getPhaseY(), minx, maxx);
for (int j = 0; j < positions.length; j += 2) {
float x = positions[j];
float y = positions[j + 1];
if (!mViewPortHandler.isInBoundsRight(x))
break;
if (!mViewPortHandler.isInBoundsLeft(x) || !mViewPortHandler.isInBoundsY(y))
continue;
Entry entry = dataSet.getEntryForIndex(j / 2 + minx);
drawValue(c, dataSet.getValueFormatter(), entry.getVal(), entry, i, x,
y - valOffset, dataSet.getValueTextColor(j / 2));
}
}
}
}
示例8: drawValues
import com.github.mikephil.charting.interfaces.datasets.ILineDataSet; //导入方法依赖的package包/类
@Override
public void drawValues(Canvas c) {
if (mChart.getLineData().getYValCount() < mChart.getMaxVisibleCount()
* mViewPortHandler.getScaleX()) {
List<ILineDataSet> dataSets = mChart.getLineData().getDataSets();
for (int i = 0; i < dataSets.size(); i++) {
ILineDataSet dataSet = dataSets.get(i);
if (!dataSet.isDrawValuesEnabled() || dataSet.getEntryCount() == 0)
continue;
// apply the text-styling defined by the DataSet
applyValueTextStyle(dataSet);
Transformer trans = mChart.getTransformer(dataSet.getAxisDependency());
// make sure the values do not interfear with the circles
int valOffset = (int) (dataSet.getCircleRadius() * 1.75f);
if (!dataSet.isDrawCirclesEnabled())
valOffset = valOffset / 2;
int entryCount = dataSet.getEntryCount();
Entry entryFrom = dataSet.getEntryForXIndex((mMinX < 0) ? 0 : mMinX,
DataSet.Rounding.DOWN);
Entry entryTo = dataSet.getEntryForXIndex(mMaxX, DataSet.Rounding.UP);
int diff = (entryFrom == entryTo) ? 1 : 0;
int minx = Math.max(dataSet.getEntryIndex(entryFrom) - diff, 0);
int maxx = Math.min(Math.max(minx + 2, dataSet.getEntryIndex(entryTo) + 1), entryCount);
float[] positions = trans.generateTransformedValuesLine(
dataSet, mAnimator.getPhaseX(), mAnimator.getPhaseY(), minx, maxx);
for (int j = 0; j < positions.length; j += 2) {
float x = positions[j];
float y = positions[j + 1];
if (!mViewPortHandler.isInBoundsRight(x))
break;
if (!mViewPortHandler.isInBoundsLeft(x) || !mViewPortHandler.isInBoundsY(y))
continue;
Entry entry = dataSet.getEntryForIndex(j / 2 + minx);
drawValue(c, dataSet.getValueFormatter(), entry.getVal(), entry, i, x,
y - valOffset, dataSet.getValueTextColor(j / 2));
}
}
}
}
示例9: drawCircles
import com.github.mikephil.charting.interfaces.datasets.ILineDataSet; //导入方法依赖的package包/类
protected void drawCircles(Canvas c) {
mRenderPaint.setStyle(Paint.Style.FILL);
float phaseX = Math.max(0.f, Math.min(1.f, mAnimator.getPhaseX()));
float phaseY = mAnimator.getPhaseY();
float[] circlesBuffer = new float[2];
List<ILineDataSet> dataSets = mChart.getLineData().getDataSets();
for (int i = 0; i < dataSets.size(); i++) {
ILineDataSet dataSet = dataSets.get(i);
if (!dataSet.isVisible() || !dataSet.isDrawCirclesEnabled() ||
dataSet.getEntryCount() == 0)
continue;
mCirclePaintInner.setColor(dataSet.getCircleHoleColor());
Transformer trans = mChart.getTransformer(dataSet.getAxisDependency());
int entryCount = dataSet.getEntryCount();
Entry entryFrom = dataSet.getEntryForXIndex((mMinX < 0) ? 0 : mMinX,
DataSet.Rounding.DOWN);
Entry entryTo = dataSet.getEntryForXIndex(mMaxX, DataSet.Rounding.UP);
int diff = (entryFrom == entryTo) ? 1 : 0;
int minx = Math.max(dataSet.getEntryIndex(entryFrom) - diff, 0);
int maxx = Math.min(Math.max(minx + 2, dataSet.getEntryIndex(entryTo) + 1), entryCount);
float halfsize = dataSet.getCircleRadius() / 2f;
for (int j = minx,
count = (int) Math.ceil((maxx - minx) * phaseX + minx);
j < count;
j ++) {
Entry e = dataSet.getEntryForIndex(j);
if (e == null) break;
circlesBuffer[0] = e.getXIndex();
circlesBuffer[1] = e.getVal() * phaseY;
trans.pointValuesToPixel(circlesBuffer);
if (!mViewPortHandler.isInBoundsRight(circlesBuffer[0]))
break;
// make sure the circles don't do shitty things outside
// bounds
if (!mViewPortHandler.isInBoundsLeft(circlesBuffer[0]) ||
!mViewPortHandler.isInBoundsY(circlesBuffer[1]))
continue;
int circleColor = dataSet.getCircleColor(j);
mRenderPaint.setColor(circleColor);
c.drawCircle(circlesBuffer[0], circlesBuffer[1], dataSet.getCircleRadius(),
mRenderPaint);
if (dataSet.isDrawCircleHoleEnabled()
&& circleColor != mCirclePaintInner.getColor())
c.drawCircle(circlesBuffer[0], circlesBuffer[1],
halfsize,
mCirclePaintInner);
}
}
}