protected Rectangle computeBoundingBox(Collection<? extends Shape> shapes, SpatialContext ctx) {
Range xRange = null;
double minY = Double.POSITIVE_INFINITY;
double maxY = Double.NEGATIVE_INFINITY;
for (Shape geom : shapes) {
Rectangle r = geom.getBoundingBox();
Range xRange2 = Range.xRange(r, ctx);
if (xRange == null) {
xRange = xRange2;
} else {
xRange = xRange.expandTo(xRange2);
}
minY = Math.min(minY, r.getMinY());
maxY = Math.max(maxY, r.getMaxY());
}
return ctx.makeRectangle(xRange.getMin(), xRange.getMax(), minY, maxY);
}
protected Rectangle randomRectangle(Point nearP) {
Rectangle bounds = ctx.getWorldBounds();
if (nearP == null) nearP = randomPointIn(bounds);
Range xRange = randomRange(rarely() ? 0 : nearP.getX(), Range.xRange(bounds, ctx));
Range yRange = randomRange(rarely() ? 0 : nearP.getY(), Range.yRange(bounds, ctx));
return makeNormRect(
divisible(xRange.getMin()),
divisible(xRange.getMax()),
divisible(yRange.getMin()),
divisible(yRange.getMax()));
}
private Range randomRange(double near, Range bounds) {
double mid = near + randomGaussian() * bounds.getWidth() / 6;
double width = Math.abs(randomGaussian()) * bounds.getWidth() / 6; // 1/3rd
return new Range(mid - width / 2, mid + width / 2);
}