class ProjectionHandler {

    public ReferencedEnvelope getRenderingEnvelope() {
        return renderingEnvelope;
    }

    public  ProjectionHandler(CoordinateReferenceSystem sourceCRS, Envelope validAreaBounds, ReferencedEnvelope renderingEnvelope);
    public  ProjectionHandler(CoordinateReferenceSystem sourceCRS, Geometry validArea, ReferencedEnvelope renderingEnvelope);

}