Examples with BubbleChartData lecho.lib.hellocharts.model.BubbleChartData used on opensource projects

Example 1 with BubbleChartData

use of lecho.lib.hellocharts.model.BubbleChartData in project hellocharts-android by lecho.

the class BubbleChartRenderer method calculateMaxViewport.

private void calculateMaxViewport() {
    float maxZ = Float.MIN_VALUE;
    tempMaximumViewport.set(Float.MAX_VALUE, Float.MIN_VALUE, Float.MIN_VALUE, Float.MAX_VALUE);
    BubbleChartData data = dataProvider.getBubbleChartData();
    // TODO: Optimize.
    for (BubbleValue bubbleValue : data.getValues()) {
        if (Math.abs(bubbleValue.getZ()) > maxZ) {
            maxZ = Math.abs(bubbleValue.getZ());
        }
        if (bubbleValue.getX() < tempMaximumViewport.left) {
            tempMaximumViewport.left = bubbleValue.getX();
        }
        if (bubbleValue.getX() > tempMaximumViewport.right) {
            tempMaximumViewport.right = bubbleValue.getX();
        }
        if (bubbleValue.getY() < tempMaximumViewport.bottom) {
            tempMaximumViewport.bottom = bubbleValue.getY();
        }
        if (bubbleValue.getY() > tempMaximumViewport.top) {
            tempMaximumViewport.top = bubbleValue.getY();
        }
    }
    maxRadius = (float) Math.sqrt(maxZ / Math.PI);
    // Number 4 is determined by trials and errors method, no magic behind it:).
    bubbleScaleX = tempMaximumViewport.width() / (maxRadius * 4);
    if (bubbleScaleX == 0) {
        // case for 0 viewport width.
        bubbleScaleX = 1;
    }
    bubbleScaleY = tempMaximumViewport.height() / (maxRadius * 4);
    if (bubbleScaleY == 0) {
        // case for 0 viewport height.
        bubbleScaleY = 1;
    }
    // For cases when user sets different than 1 bubble scale in BubbleChartData.
    bubbleScaleX *= data.getBubbleScale();
    bubbleScaleY *= data.getBubbleScale();
    // Prevent cutting of bubbles on the edges of chart area.
    tempMaximumViewport.inset(-maxRadius * bubbleScaleX, -maxRadius * bubbleScaleY);
    minRawRadius = ChartUtils.dp2px(density, dataProvider.getBubbleChartData().getMinBubbleRadius());
}

Example 2 with BubbleChartData

use of lecho.lib.hellocharts.model.BubbleChartData in project hellocharts-android by lecho.

the class BubbleChartRenderer method onChartDataChanged.

@Override
public void onChartDataChanged() {
    super.onChartDataChanged();
    BubbleChartData data = dataProvider.getBubbleChartData();
    this.hasLabels = data.hasLabels();
    this.hasLabelsOnlyForSelected = data.hasLabelsOnlyForSelected();
    this.valueFormatter = data.getFormatter();
    onChartViewportChanged();
}

Example 3 with BubbleChartData

use of lecho.lib.hellocharts.model.BubbleChartData in project hellocharts-android by lecho.

the class BubbleChartRenderer method highlightBubbles.

private void highlightBubbles(Canvas canvas) {
    final BubbleChartData data = dataProvider.getBubbleChartData();
    BubbleValue bubbleValue = data.getValues().get(selectedValue.getFirstIndex());
    highlightBubble(canvas, bubbleValue);
}

Example 4 with BubbleChartData

use of lecho.lib.hellocharts.model.BubbleChartData in project hellocharts-android by lecho.

the class BubbleChartRenderer method checkTouch.

@Override
public boolean checkTouch(float touchX, float touchY) {
    selectedValue.clear();
    final BubbleChartData data = dataProvider.getBubbleChartData();
    int valueIndex = 0;
    for (BubbleValue bubbleValue : data.getValues()) {
        float rawRadius = processBubble(bubbleValue, bubbleCenter);
        if (ValueShape.SQUARE.equals(bubbleValue.getShape())) {
            if (bubbleRect.contains(touchX, touchY)) {
                selectedValue.set(valueIndex, valueIndex, SelectedValueType.NONE);
            }
        } else if (ValueShape.CIRCLE.equals(bubbleValue.getShape())) {
            final float diffX = touchX - bubbleCenter.x;
            final float diffY = touchY - bubbleCenter.y;
            final float touchDistance = (float) Math.sqrt((diffX * diffX) + (diffY * diffY));
            if (touchDistance <= rawRadius) {
                selectedValue.set(valueIndex, valueIndex, SelectedValueType.NONE);
            }
        } else {
            throw new IllegalArgumentException("Invalid bubble shape: " + bubbleValue.getShape());
        }
        ++valueIndex;
    }
    return isTouched();
}