private void renderDotAndLabel(
Canvas canvas,
RadarData lineData,
// float previousX,float previousY,
float currentX,
float currentY,
int listID) {
PlotLine plotLine = lineData.getPlotLine();
if (!plotLine.getDotStyle().equals(XEnum.DotStyle.HIDE)) {
PlotDot pDot = plotLine.getPlotDot();
PlotDotRender.getInstance()
.renderDot(
canvas,
pDot,
currentX - pDot.getDotRadius(),
currentY - pDot.getDotRadius(),
currentX,
currentY,
lineData.getPlotLine().getDotPaint()); // 标识图形
}
// 是否显示标签
if (lineData.getLabelVisible()) {
canvas.drawText(
getFormatterDotLabel(lineData.getLinePoint().get(listID)),
currentX,
currentY,
lineData.getPlotLine().getDotLabelPaint());
}
}
/**
* 绘制图网络线
*
* @param canvas 画布
* @param lineData 数据集类
* @param arrayDataX x坐标
* @param arrayDataY y坐标
*/
private void drawDataPath(
Canvas canvas, RadarData lineData, Float[] arrayDataX, Float[] arrayDataY) {
float startX = 0.0f, startY = 0.0f;
float initX = 0.0f, initY = 0.0f;
Path pathArea = new Path();
for (int p = 0; p < arrayDataX.length; p++) {
if (0 == p) {
initX = startX = arrayDataX[p];
initY = startY = arrayDataY[p];
pathArea.moveTo(initX, initY);
} else {
pathArea.lineTo(arrayDataX[p], arrayDataY[p]);
startX = arrayDataX[p];
startY = arrayDataY[p];
}
// 绘制点及对应的标签
renderDotAndLabel(canvas, lineData, arrayDataX[p], arrayDataY[p], p);
}
// 收尾
pathArea.lineTo(initX, initY);
pathArea.close();
lineData.getPlotLine().getLinePaint().setAlpha(mAreaAlpha);
// lineData.getPlotLine().getLinePaint().setStyle(Style.STROKE);
canvas.drawPath(pathArea, lineData.getPlotLine().getLinePaint());
}
/** 绘制key */
protected void renderKey(Canvas canvas) {
if (!getKeyVisible()) return;
DrawHelper dw = new DrawHelper();
float textHeight = dw.getPaintFontHeight(getKeyPaint());
float rectWidth = 2 * textHeight;
float currentX = 0.0f;
float currentY = 0.0f;
if (!isVerticalScreen()) // 横屏
{
getKeyPaint().setTextAlign(Align.RIGHT);
currentX = plotArea.getRight();
currentY = this.plotArea.getTop() + textHeight;
} else {
getKeyPaint().setTextAlign(Align.LEFT);
currentX = plotArea.getLeft();
currentY = this.plotArea.getBottom();
}
int totalTextWidth = 0;
for (RadarData cData : mDataSet) {
getKeyPaint().setColor(cData.getLineColor());
if (!isVerticalScreen()) // 横屏
{
canvas.drawRect(
currentX, currentY, currentX - rectWidth, currentY - textHeight, getKeyPaint());
canvas.drawText(cData.getLineKey(), currentX - rectWidth, currentY, getKeyPaint());
currentY = MathHelper.getInstance().add(currentY, textHeight);
} else { // 竖屏
int keyTextWidth = dw.getTextWidth(getKeyPaint(), cData.getLineKey());
totalTextWidth += keyTextWidth;
if (totalTextWidth > plotArea.getWidth()) {
currentY += textHeight;
currentX = plotArea.getLeft();
totalTextWidth = 0;
}
canvas.drawRect(
currentX, currentY, currentX + rectWidth, currentY - textHeight, getKeyPaint());
canvas.drawText(cData.getLineKey(), currentX + rectWidth, currentY, getKeyPaint());
currentX = MathHelper.getInstance().add(currentX, rectWidth + keyTextWidth + 5);
}
}
}
/**
* 绘制数据区网络
*
* @param canvas 画布
*/
private void renderDataArea(Canvas canvas) {
float cirX = plotArea.getCenterX();
float cirY = plotArea.getCenterY();
for (RadarData lineData : mDataSet) {
// 画各自的网
List<Double> dataset = lineData.getLinePoint();
int dataSize = dataset.size();
if (dataSize < 3) {
Log.e(TAG, "这几个数据可不够，最少三个起步.");
continue;
}
Float[] arrayDataX = new Float[dataSize];
Float[] arrayDataY = new Float[dataSize];
int i = 0;
for (Double data : dataset) {
Double per = (data - dataAxis.getAxisMin()) / dataAxis.getAxisRange();
float curRadius = (float) (getRadius() * per);
// 计算位置
MathHelper.getInstance().calcArcEndPointXY(cirX, cirY, curRadius, mArrayLabelAgent[i]);
// 依Path还是Line来决定画线风格
arrayDataX[i] = MathHelper.getInstance().getPosX();
arrayDataY[i] = MathHelper.getInstance().getPosY();
i++; // 标签
}
// 画线或填充
switch (lineData.getAreaStyle()) {
case FILL:
drawDataPath(canvas, lineData, arrayDataX, arrayDataY);
break;
case STROKE:
renderDataLine(canvas, lineData, arrayDataX, arrayDataY);
break;
default:
Log.e(TAG, "这类型不认识.");
}
}
}
/**
* 绘制数据连接线
*
* @param canvas 画布
* @param lineData 数据集类
* @param arrayDataX x坐标
* @param arrayDataY y坐标
*/
private void renderDataLine(
Canvas canvas, RadarData lineData, Float[] arrayDataX, Float[] arrayDataY) {
float startX = 0.0f, startY = 0.0f;
float initX = 0.0f, initY = 0.0f;
for (int p = 0; p < arrayDataX.length; p++) {
if (0 == p) {
initX = startX = arrayDataX[p];
initY = startY = arrayDataY[p];
} else {
DrawHelper.getInstance()
.drawLine(
lineData.getLineStyle(),
startX,
startY,
arrayDataX[p],
arrayDataY[p],
canvas,
lineData.getPlotLine().getLinePaint());
startX = arrayDataX[p];
startY = arrayDataY[p];
}
// 绘制点及对应的标签
renderDotAndLabel(canvas, lineData, arrayDataX[p], arrayDataY[p], p);
}
// 收尾
DrawHelper.getInstance()
.drawLine(
lineData.getLineStyle(),
startX,
startY,
initX,
initY,
canvas,
lineData.getPlotLine().getLinePaint());
}
