Java MPPointF.getInstance方法代码示例

import com.github.mikephil.charting.utils.MPPointF; //导入方法依赖的package包/类
/**
 * Returns a recyclable MPPointF instance.
 * returns the correct translation depending on the provided x and y touch
 * points
 *
 * @param x
 * @param y
 * @return
 */
public MPPointF getTrans(float x, float y) {

    ViewPortHandler vph = mChart.getViewPortHandler();

    float xTrans = x - vph.offsetLeft();
    float yTrans = 0f;

    // check if axis is inverted
    if (inverted()) {
        yTrans = -(y - vph.offsetTop());
    } else {
        yTrans = -(mChart.getMeasuredHeight() - y - vph.offsetBottom());
    }

    return MPPointF.getInstance(xTrans, yTrans);
}
 

import com.github.mikephil.charting.utils.MPPointF; //导入方法依赖的package包/类
/**
 * Returns a recyclable MPPointF instance.
 *
 * @param e
 * @param axis
 * @return
 */
@Override
public MPPointF getPosition(Entry e, AxisDependency axis) {

    if (e == null)
        return null;

    float[] vals = mGetPositionBuffer;
    vals[0] = e.getY();
    vals[1] = e.getX();

    getTransformer(axis).pointValuesToPixel(vals);

    return MPPointF.getInstance(vals[0], vals[1]);
}
 

import com.github.mikephil.charting.utils.MPPointF; //导入方法依赖的package包/类
@Override
public void renderAxisLabels(Canvas c) {

    if (!mYAxis.isEnabled() || !mYAxis.isDrawLabelsEnabled())
        return;

    mAxisLabelPaint.setTypeface(mYAxis.getTypeface());
    mAxisLabelPaint.setTextSize(mYAxis.getTextSize());
    mAxisLabelPaint.setColor(mYAxis.getTextColor());

    MPPointF center = mChart.getCenterOffsets();
    MPPointF pOut = MPPointF.getInstance(0,0);
    float factor = mChart.getFactor();

    final int from = mYAxis.isDrawBottomYLabelEntryEnabled() ? 0 : 1;
    final int to = mYAxis.isDrawTopYLabelEntryEnabled()
            ? mYAxis.mEntryCount
            : (mYAxis.mEntryCount - 1);

    for (int j = from; j < to; j++) {

        float r = (mYAxis.mEntries[j] - mYAxis.mAxisMinimum) * factor;

        Utils.getPosition(center, r, mChart.getRotationAngle(), pOut);

        String label = mYAxis.getFormattedLabel(j);

        c.drawText(label, pOut.x + 10, pOut.y, mAxisLabelPaint);
    }
    MPPointF.recycleInstance(center);
    MPPointF.recycleInstance(pOut);
}
 

import com.github.mikephil.charting.utils.MPPointF; //导入方法依赖的package包/类
@Override
public void renderAxisLabels(Canvas c) {

    if (!mXAxis.isEnabled() || !mXAxis.isDrawLabelsEnabled())
        return;

    final float labelRotationAngleDegrees = mXAxis.getLabelRotationAngle();
    final MPPointF drawLabelAnchor = MPPointF.getInstance(0.5f, 0.25f);

    mAxisLabelPaint.setTypeface(mXAxis.getTypeface());
    mAxisLabelPaint.setTextSize(mXAxis.getTextSize());
    mAxisLabelPaint.setColor(mXAxis.getTextColor());

    float sliceangle = mChart.getSliceAngle();

    // calculate the factor that is needed for transforming the value to
    // pixels
    float factor = mChart.getFactor();

    MPPointF center = mChart.getCenterOffsets();
    MPPointF pOut = MPPointF.getInstance(0,0);
    for (int i = 0; i < mChart.getData().getMaxEntryCountSet().getEntryCount(); i++) {

        String label = mXAxis.getValueFormatter().getFormattedValue(i, mXAxis);

        float angle = (sliceangle * i + mChart.getRotationAngle()) % 360f;

        Utils.getPosition(center, mChart.getYRange() * factor
                + mXAxis.mLabelRotatedWidth / 2f, angle, pOut);

        drawLabel(c, label, pOut.x, pOut.y - mXAxis.mLabelRotatedHeight / 2.f,
                drawLabelAnchor, labelRotationAngleDegrees);
    }

    MPPointF.recycleInstance(center);
    MPPointF.recycleInstance(pOut);
    MPPointF.recycleInstance(drawLabelAnchor);
}
 

import com.github.mikephil.charting.utils.MPPointF; //导入方法依赖的package包/类
/**
 * Sets a custom position for the description text in pixels on the screen.
 *
 * @param x - xcoordinate
 * @param y - ycoordinate
 */
public void setPosition(float x, float y) {
    if (mPosition == null) {
        mPosition = MPPointF.getInstance(x, y);
    } else {
        mPosition.x = x;
        mPosition.y = y;
    }
}
 

import com.github.mikephil.charting.utils.MPPointF; //导入方法依赖的package包/类
/**
 * Sets a custom position for the description text in pixels on the screen.
 *
 * @param x - xcoordinate
 * @param y - ycoordinate
 */
public void setDescriptionPosition(float x, float y) {
    if (mDescriptionPosition == null) {
        mDescriptionPosition = MPPointF.getInstance(x, y);
    } else {
        mDescriptionPosition.x = x;
        mDescriptionPosition.y = y;
    }
}
 

import com.github.mikephil.charting.utils.MPPointF; //导入方法依赖的package包/类
@Override
public void renderAxisLabels(Canvas c) {

    if (!mYAxis.isEnabled() || !mYAxis.isDrawLabelsEnabled())
        return;

    mAxisLabelPaint.setTypeface(mYAxis.getTypeface());
    mAxisLabelPaint.setTextSize(mYAxis.getTextSize());
    mAxisLabelPaint.setColor(mYAxis.getTextColor());

    MPPointF center = mChart.getCenterOffsets();
    MPPointF pOut = MPPointF.getInstance(0,0);
    float factor = mChart.getFactor();

    int labelCount = mYAxis.mEntryCount;

    for (int j = 0; j < labelCount; j++) {

        if (j == labelCount - 1 && mYAxis.isDrawTopYLabelEntryEnabled() == false)
            break;

        float r = (mYAxis.mEntries[j] - mYAxis.mAxisMinimum) * factor;

        Utils.getPosition(center, r, mChart.getRotationAngle(), pOut);

        String label = mYAxis.getFormattedLabel(j);

        c.drawText(label, pOut.x + 10, pOut.y, mAxisLabelPaint);
    }
    MPPointF.recycleInstance(center);
    MPPointF.recycleInstance(pOut);
}
 

import com.github.mikephil.charting.utils.MPPointF; //导入方法依赖的package包/类
@Override
public void renderLimitLines(Canvas c) {

    List<LimitLine> limitLines = mYAxis.getLimitLines();

    if (limitLines == null)
        return;

    float sliceangle = mChart.getSliceAngle();

    // calculate the factor that is needed for transforming the value to
    // pixels
    float factor = mChart.getFactor();

    MPPointF center = mChart.getCenterOffsets();
    MPPointF pOut = MPPointF.getInstance(0,0);
    for (int i = 0; i < limitLines.size(); i++) {

        LimitLine l = limitLines.get(i);

        if (!l.isEnabled())
            continue;

        mLimitLinePaint.setColor(l.getLineColor());
        mLimitLinePaint.setPathEffect(l.getDashPathEffect());
        mLimitLinePaint.setStrokeWidth(l.getLineWidth());

        float r = (l.getLimit() - mChart.getYChartMin()) * factor;

        Path limitPath = mRenderLimitLinesPathBuffer;
        limitPath.reset();


        for (int j = 0; j < mChart.getData().getMaxEntryCountSet().getEntryCount(); j++) {

            Utils.getPosition(center, r, sliceangle * j + mChart.getRotationAngle(), pOut);

            if (j == 0)
                limitPath.moveTo(pOut.x, pOut.y);
            else
                limitPath.lineTo(pOut.x, pOut.y);
        }
        limitPath.close();

        c.drawPath(limitPath, mLimitLinePaint);
    }
    MPPointF.recycleInstance(center);
    MPPointF.recycleInstance(pOut);
}
 

import com.github.mikephil.charting.utils.MPPointF; //导入方法依赖的package包/类
/**
 * Draws the RadarDataSet
 *
 * @param c
 * @param dataSet
 * @param mostEntries the entry count of the dataset with the most entries
 */
protected void drawDataSet(Canvas c, IRadarDataSet dataSet, int mostEntries) {

    float phaseX = mAnimator.getPhaseX();
    float phaseY = mAnimator.getPhaseY();

    float sliceangle = mChart.getSliceAngle();

    // calculate the factor that is needed for transforming the value to
    // pixels
    float factor = mChart.getFactor();

    MPPointF center = mChart.getCenterOffsets();
    MPPointF pOut = MPPointF.getInstance(0,0);
    Path surface = mDrawDataSetSurfacePathBuffer;
    surface.reset();

    boolean hasMovedToPoint = false;

    for (int j = 0; j < dataSet.getEntryCount(); j++) {

        mRenderPaint.setColor(dataSet.getColor(j));

        RadarEntry e = dataSet.getEntryForIndex(j);

        Utils.getPosition(
                center,
                (e.getY() - mChart.getYChartMin()) * factor * phaseY,
                sliceangle * j * phaseX + mChart.getRotationAngle(), pOut);

        if (Float.isNaN(pOut.x))
            continue;

        if (!hasMovedToPoint) {
            surface.moveTo(pOut.x, pOut.y);
            hasMovedToPoint = true;
        } else
            surface.lineTo(pOut.x, pOut.y);
    }

    if (dataSet.getEntryCount() > mostEntries) {
        // if this is not the largest set, draw a line to the center before closing
        surface.lineTo(center.x, center.y);
    }

    surface.close();

    if (dataSet.isDrawFilledEnabled()) {

        final Drawable drawable = dataSet.getFillDrawable();
        if (drawable != null) {

            drawFilledPath(c, surface, drawable);
        } else {

            drawFilledPath(c, surface, dataSet.getFillColor(), dataSet.getFillAlpha());
        }
    }

    mRenderPaint.setStrokeWidth(dataSet.getLineWidth());
    mRenderPaint.setStyle(Paint.Style.STROKE);

    // draw the line (only if filled is disabled or alpha is below 255)
    if (!dataSet.isDrawFilledEnabled() || dataSet.getFillAlpha() < 255)
        c.drawPath(surface, mRenderPaint);

    MPPointF.recycleInstance(center);
    MPPointF.recycleInstance(pOut);
}
 

import com.github.mikephil.charting.utils.MPPointF; //导入方法依赖的package包/类
protected void drawWeb(Canvas c) {

        float sliceangle = mChart.getSliceAngle();

        // calculate the factor that is needed for transforming the value to
        // pixels
        float factor = mChart.getFactor();
        float rotationangle = mChart.getRotationAngle();

        MPPointF center = mChart.getCenterOffsets();

        // draw the web lines that come from the center
        mWebPaint.setStrokeWidth(mChart.getWebLineWidth());
        mWebPaint.setColor(mChart.getWebColor());
        mWebPaint.setAlpha(mChart.getWebAlpha());

        final int xIncrements = 1 + mChart.getSkipWebLineCount();
        int maxEntryCount = mChart.getData().getMaxEntryCountSet().getEntryCount();

        MPPointF p = MPPointF.getInstance(0,0);
        for (int i = 0; i < maxEntryCount; i += xIncrements) {

            Utils.getPosition(
                    center,
                    mChart.getYRange() * factor,
                    sliceangle * i + rotationangle,
                    p);

            c.drawLine(center.x, center.y, p.x, p.y, mWebPaint);
        }
        MPPointF.recycleInstance(p);

        // draw the inner-web
        mWebPaint.setStrokeWidth(mChart.getWebLineWidthInner());
        mWebPaint.setColor(mChart.getWebColorInner());
        mWebPaint.setAlpha(mChart.getWebAlpha());

        int labelCount = mChart.getYAxis().mEntryCount;

        MPPointF p1out = MPPointF.getInstance(0,0);
        MPPointF p2out = MPPointF.getInstance(0,0);
        for (int j = 0; j < labelCount; j++) {

            for (int i = 0; i < mChart.getData().getEntryCount(); i++) {

                float r = (mChart.getYAxis().mEntries[j] - mChart.getYChartMin()) * factor;

                Utils.getPosition(center, r, sliceangle * i + rotationangle, p1out);
                Utils.getPosition(center, r, sliceangle * (i + 1) + rotationangle, p2out);

                c.drawLine(p1out.x, p1out.y, p2out.x, p2out.y, mWebPaint);


            }
        }
        MPPointF.recycleInstance(p1out);
        MPPointF.recycleInstance(p2out);
    }
 

import com.github.mikephil.charting.utils.MPPointF; //导入方法依赖的package包/类
@Override
public void drawHighlighted(Canvas c, Highlight[] indices) {

    float sliceangle = mChart.getSliceAngle();

    // calculate the factor that is needed for transforming the value to
    // pixels
    float factor = mChart.getFactor();

    MPPointF center = mChart.getCenterOffsets();
    MPPointF pOut = MPPointF.getInstance(0,0);

    RadarData radarData = mChart.getData();

    for (Highlight high : indices) {

        IRadarDataSet set = radarData.getDataSetByIndex(high.getDataSetIndex());

        if (set == null || !set.isHighlightEnabled())
            continue;

        RadarEntry e = set.getEntryForIndex((int) high.getX());

        if (!isInBoundsX(e, set))
            continue;

        float y = (e.getY() - mChart.getYChartMin());

        Utils.getPosition(center,
                y * factor * mAnimator.getPhaseY(),
                sliceangle * high.getX() * mAnimator.getPhaseX() + mChart.getRotationAngle(),
                pOut);

        high.setDraw(pOut.x, pOut.y);

        // draw the lines
        drawHighlightLines(c, pOut.x, pOut.y, set);

        if (set.isDrawHighlightCircleEnabled()) {

            if (!Float.isNaN(pOut.x) && !Float.isNaN(pOut.y)) {

                int strokeColor = set.getHighlightCircleStrokeColor();
                if (strokeColor == ColorTemplate.COLOR_NONE) {
                    strokeColor = set.getColor(0);
                }

                if (set.getHighlightCircleStrokeAlpha() < 255) {
                    strokeColor = ColorTemplate.colorWithAlpha(strokeColor, set.getHighlightCircleStrokeAlpha());
                }

                drawHighlightCircle(c,
                        pOut,
                        set.getHighlightCircleInnerRadius(),
                        set.getHighlightCircleOuterRadius(),
                        set.getHighlightCircleFillColor(),
                        strokeColor,
                        set.getHighlightCircleStrokeWidth());
            }
        }
    }

    MPPointF.recycleInstance(center);
    MPPointF.recycleInstance(pOut);
}
 

import com.github.mikephil.charting.utils.MPPointF; //导入方法依赖的package包/类
@Override
public void renderAxisLabels(Canvas c) {

    if (!mXAxis.isEnabled() || !mXAxis.isDrawLabelsEnabled())
        return;

    float xoffset = mXAxis.getXOffset();

    mAxisLabelPaint.setTypeface(mXAxis.getTypeface());
    mAxisLabelPaint.setTextSize(mXAxis.getTextSize());
    mAxisLabelPaint.setColor(mXAxis.getTextColor());

    MPPointF pointF = MPPointF.getInstance(0,0);

    if (mXAxis.getPosition() == XAxisPosition.TOP) {
        pointF.x = 0.0f;
        pointF.y = 0.5f;
        drawLabels(c, mViewPortHandler.contentRight() + xoffset, pointF);

    } else if (mXAxis.getPosition() == XAxisPosition.TOP_INSIDE) {
        pointF.x = 1.0f;
        pointF.y = 0.5f;
        drawLabels(c, mViewPortHandler.contentRight() - xoffset, pointF);

    } else if (mXAxis.getPosition() == XAxisPosition.BOTTOM) {
        pointF.x = 1.0f;
        pointF.y = 0.5f;
        drawLabels(c, mViewPortHandler.contentLeft() - xoffset, pointF);

    } else if (mXAxis.getPosition() == XAxisPosition.BOTTOM_INSIDE) {
        pointF.x = 1.0f;
        pointF.y = 0.5f;
        drawLabels(c, mViewPortHandler.contentLeft() + xoffset, pointF);

    } else { // BOTH SIDED
        pointF.x = 0.0f;
        pointF.y = 0.5f;
        drawLabels(c, mViewPortHandler.contentRight() + xoffset, pointF);
        pointF.x = 1.0f;
        pointF.y = 0.5f;
        drawLabels(c, mViewPortHandler.contentLeft() - xoffset, pointF);
    }

    MPPointF.recycleInstance(pointF);
}
 

import com.github.mikephil.charting.utils.MPPointF; //导入方法依赖的package包/类
@Override
public void renderAxisLabels(Canvas c) {

    if (!mXAxis.isEnabled() || !mXAxis.isDrawLabelsEnabled())
        return;

    float yoffset = mXAxis.getYOffset();

    mAxisLabelPaint.setTypeface(mXAxis.getTypeface());
    mAxisLabelPaint.setTextSize(mXAxis.getTextSize());
    mAxisLabelPaint.setColor(mXAxis.getTextColor());

    MPPointF pointF = MPPointF.getInstance(0,0);
    if (mXAxis.getPosition() == XAxisPosition.TOP) {
        pointF.x = 0.5f;
        pointF.y = 1.0f;
        drawLabels(c, mViewPortHandler.contentTop() - yoffset, pointF);

    } else if (mXAxis.getPosition() == XAxisPosition.TOP_INSIDE) {
        pointF.x = 0.5f;
        pointF.y = 1.0f;
        drawLabels(c, mViewPortHandler.contentTop() + yoffset + mXAxis.mLabelRotatedHeight, pointF);

    } else if (mXAxis.getPosition() == XAxisPosition.BOTTOM) {
        pointF.x = 0.5f;
        pointF.y = 0.0f;
        drawLabels(c, mViewPortHandler.contentBottom() + yoffset, pointF);

    } else if (mXAxis.getPosition() == XAxisPosition.BOTTOM_INSIDE) {
        pointF.x = 0.5f;
        pointF.y = 0.0f;
        drawLabels(c, mViewPortHandler.contentBottom() - yoffset - mXAxis.mLabelRotatedHeight, pointF);

    } else { // BOTH SIDED
        pointF.x = 0.5f;
        pointF.y = 1.0f;
        drawLabels(c, mViewPortHandler.contentTop() - yoffset, pointF);
        pointF.x = 0.5f;
        pointF.y = 0.0f;
        drawLabels(c, mViewPortHandler.contentBottom() + yoffset, pointF);
    }
    MPPointF.recycleInstance(pointF);
}
 

import com.github.mikephil.charting.utils.MPPointF; //导入方法依赖的package包/类
@Override
public void drawValues(Canvas c) {

    // if values are drawn
    if (isDrawingValuesAllowed(mChart)) {

        List<IScatterDataSet> dataSets = mChart.getScatterData().getDataSets();

        for (int i = 0; i < mChart.getScatterData().getDataSetCount(); i++) {

            IScatterDataSet dataSet = dataSets.get(i);

            if (!shouldDrawValues(dataSet))
                continue;

            // apply the text-styling defined by the DataSet
            applyValueTextStyle(dataSet);

            mXBounds.set(mChart, dataSet);

            float[] positions = mChart.getTransformer(dataSet.getAxisDependency())
                    .generateTransformedValuesScatter(dataSet,
                            mAnimator.getPhaseX(), mAnimator.getPhaseY(), mXBounds.min, mXBounds.max);

            float shapeSize = Utils.convertDpToPixel(dataSet.getScatterShapeSize());

            MPPointF iconsOffset = MPPointF.getInstance(dataSet.getIconsOffset());
            iconsOffset.x = Utils.convertDpToPixel(iconsOffset.x);
            iconsOffset.y = Utils.convertDpToPixel(iconsOffset.y);

            for (int j = 0; j < positions.length; j += 2) {

                if (!mViewPortHandler.isInBoundsRight(positions[j]))
                    break;

                // make sure the lines don't do shitty things outside bounds
                if ((!mViewPortHandler.isInBoundsLeft(positions[j])
                        || !mViewPortHandler.isInBoundsY(positions[j + 1])))
                    continue;

                Entry entry = dataSet.getEntryForIndex(j / 2 + mXBounds.min);

                if (dataSet.isDrawValuesEnabled()) {
                    drawValue(c,
                            dataSet.getValueFormatter(),
                            entry.getY(),
                            entry,
                            i,
                            positions[j],
                            positions[j + 1] - shapeSize,
                            dataSet.getValueTextColor(j / 2 + mXBounds.min));
                }

                if (entry.getIcon() != null && dataSet.isDrawIconsEnabled()) {

                    Drawable icon = entry.getIcon();

                    Utils.drawImage(
                            c,
                            icon,
                            (int)(positions[j] + iconsOffset.x),
                            (int)(positions[j + 1] + iconsOffset.y),
                            icon.getIntrinsicWidth(),
                            icon.getIntrinsicHeight());
                }
            }

            MPPointF.recycleInstance(iconsOffset);
        }
    }
}
 

import com.github.mikephil.charting.utils.MPPointF; //导入方法依赖的package包/类
@Override
public void drawValues(Canvas c) {

    float phaseX = mAnimator.getPhaseX();
    float phaseY = mAnimator.getPhaseY();

    float sliceangle = mChart.getSliceAngle();

    // calculate the factor that is needed for transforming the value to
    // pixels
    float factor = mChart.getFactor();

    MPPointF center = mChart.getCenterOffsets();
    MPPointF pOut = MPPointF.getInstance(0,0);

    float yoffset = Utils.convertDpToPixel(5f);

    for (int i = 0; i < mChart.getData().getDataSetCount(); i++) {

        IRadarDataSet dataSet = mChart.getData().getDataSetByIndex(i);

        if (!shouldDrawValues(dataSet))
            continue;

        // apply the text-styling defined by the DataSet
        applyValueTextStyle(dataSet);

        for (int j = 0; j < dataSet.getEntryCount(); j++) {

            RadarEntry entry = dataSet.getEntryForIndex(j);

             Utils.getPosition(
                     center,
                     (entry.getY() - mChart.getYChartMin()) * factor * phaseY,
                     sliceangle * j * phaseX + mChart.getRotationAngle(),
                     pOut);

            drawValue(c, dataSet.getValueFormatter(), entry.getY(), entry, i, pOut.x, pOut.y - yoffset, dataSet.getValueTextColor
                    (j));
        }
    }

    MPPointF.recycleInstance(center);
    MPPointF.recycleInstance(pOut);
}