Package com.pixelmed.dicom

Class PixelSpacing

  • public class PixelSpacing
extends java.lang.Object

    An class to extract and describe pixel spacing related information.

    Currently only supports square pixels.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected java.lang.String description  
      protected double spacing  

    • Constructor Summary

      Constructors 
      Constructor Description
      PixelSpacing​(AttributeList list)
      Extract the appropriate spacing to use for measurements on projection radiographs or non-enhanced family cross-sectional images.
      PixelSpacing​(AttributeList list, GeometryOfVolume volumeGeometry)
      Extract the appropriate spacing to use for measurements.
      PixelSpacing​(AttributeList list, GeometryOfVolume volumeGeometry, boolean preferCalibratedValue, boolean useMagnificationFactorIfPresent)
      Extract the appropriate spacing to use for measurements.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.String getDescription()
      Get the description.
      double getSpacing()
      Get the spacing.
      java.lang.String toString()
      Get the spacing and the description as a String.

      • Methods inherited from class java.lang.Object

        clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

    • Field Detail

      • spacing

        protected double spacing

      • description

        protected java.lang.String description

    • Constructor Detail

      • PixelSpacing

        public PixelSpacing​(AttributeList list,
                    GeometryOfVolume volumeGeometry,
                    boolean preferCalibratedValue,
                    boolean useMagnificationFactorIfPresent)

        Extract the appropriate spacing to use for measurements.

        Parameters:
        list - where to look for the top level DICOM pixel spacing related attributes
        volumeGeometry - if present, where to get the voxel spacing already derived from the DICOM attributes may be null, if not cross-sectional modality)
        preferCalibratedValue - if true, in the absence of 3D geometry, and presence of both Pixel Spacing and Imager Pixel Spacing with different values, use the former
        useMagnificationFactorIfPresent - if true, and preferCalibratedValue is false and there is no Pixel Spacing, adjust Imager Pixel Spacing based on mag factor, if absent, SID and SOD

      • PixelSpacing

        public PixelSpacing​(AttributeList list,
                    GeometryOfVolume volumeGeometry)

        Extract the appropriate spacing to use for measurements.

        Will prefer calibrated values, and ignore magnification factors
        Parameters:
        list - where to look for the top level DICOM pixel spacing related attributes
        volumeGeometry - if present, where to get the voxel spacing already derived from the DICOM attributes may be null, if not cross-sectional modality)

      • PixelSpacing

        public PixelSpacing​(AttributeList list)

        Extract the appropriate spacing to use for measurements on projection radiographs or non-enhanced family cross-sectional images.

        Will prefer calibrated values, and ignore magnification factors
        Parameters:
        list - where to look for the top level DICOM pixel spacing related attributes

    • Method Detail

      • getSpacing

        public double getSpacing()

        Get the spacing.

        Returns:
        the spacing

      • getDescription

        public java.lang.String getDescription()

        Get the description.

        Returns:
        the description

      • toString

        public java.lang.String toString()

        Get the spacing and the description as a String.

        Overrides:
        toString in class java.lang.Object
        Returns:
        a string describing the spacing and the description