@Override
protected void drawHighlights() {
// if there are values to highlight and highlighnting is enabled, do it
if (mHighlightEnabled && valuesToHighlight()) {
float sliceangle = getSliceAngle();
float factor = getFactor();
PointF c = getCenterOffsets();
for (int i = 0; i < mIndicesToHightlight.length; i++) {
RadarDataSet set =
mCurrentData.getDataSetByIndex(mIndicesToHightlight[i].getDataSetIndex());
if (set == null) continue;
mHighlightPaint.setColor(set.getHighLightColor());
// get the index to highlight
int xIndex = mIndicesToHightlight[i].getXIndex();
Entry e = set.getEntryForXIndex(xIndex);
int j = set.getEntryPosition(e);
float y = e.getVal();
PointF p = getPosition(c, y * factor, sliceangle * j + mRotationAngle);
float[] pts = new float[] {p.x, 0, p.x, getHeight(), 0, p.y, getWidth(), p.y};
mDrawCanvas.drawLines(pts, mHighlightPaint);
}
}
}
@Override
protected void drawValues() {
// if values are drawn
if (mDrawYValues) {
float sliceangle = getSliceAngle();
// calculate the factor that is needed for transforming the value to
// pixels
float factor = getFactor();
PointF c = getCenterOffsets();
float yoffset = Utils.convertDpToPixel(5f);
for (int i = 0; i < mCurrentData.getDataSetCount(); i++) {
RadarDataSet dataSet = mCurrentData.getDataSetByIndex(i);
ArrayList<Entry> entries = dataSet.getYVals();
for (int j = 0; j < entries.size(); j++) {
Entry e = entries.get(j);
PointF p = getPosition(c, e.getVal() * factor, sliceangle * j + mRotationAngle);
if (mDrawUnitInChart)
mDrawCanvas.drawText(
mValueFormatter.getFormattedValue(e.getVal()) + mUnit,
p.x,
p.y - yoffset,
mValuePaint);
else
mDrawCanvas.drawText(
mValueFormatter.getFormattedValue(e.getVal()), p.x, p.y - yoffset, mValuePaint);
}
}
}
}
@Override
protected void drawData() {
ArrayList<RadarDataSet> dataSets = mCurrentData.getDataSets();
float sliceangle = getSliceAngle();
// calculate the factor that is needed for transforming the value to
// pixels
float factor = getFactor();
PointF c = getCenterOffsets();
for (int i = 0; i < mCurrentData.getDataSetCount(); i++) {
RadarDataSet dataSet = dataSets.get(i);
ArrayList<Entry> entries = dataSet.getYVals();
Path surface = new Path();
for (int j = 0; j < entries.size(); j++) {
mRenderPaint.setColor(dataSet.getColor(j));
Entry e = entries.get(j);
PointF p = getPosition(c, e.getVal() * factor, sliceangle * j + mRotationAngle);
if (j == 0) surface.moveTo(p.x, p.y);
else surface.lineTo(p.x, p.y);
}
surface.close();
// draw filled
if (dataSet.isDrawFilledEnabled()) {
mRenderPaint.setStyle(Paint.Style.FILL);
mRenderPaint.setAlpha(dataSet.getFillAlpha());
mDrawCanvas.drawPath(surface, mRenderPaint);
mRenderPaint.setAlpha(255);
}
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)
mDrawCanvas.drawPath(surface, mRenderPaint);
}
}