public BackProjectionSliceReconstructor(List <double[]> projections, double angleBetweenProjections, ProjectionHandler projectionHandler)
 {
     this.angleBetweenProjections = angleBetweenProjections;
     this.projections             = projections;
     this.projectionHandler       = projectionHandler;
 }
 public IterativeSliceReconstructor(List<double[]> projections, double angleBetweenProjections, ProjectionHandler projectionHandler, bool allowNegativeValues = true)
 {
     this.angleBetweenProjections = angleBetweenProjections;
     this.projections = projections;
     this.projectionHandler = projectionHandler;
     this.allowNegativeValues = allowNegativeValues;
 }