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## org.apache.poi.util
Class Units

    java.lang.Object
      org.apache.poi.util.Units

    public class Units

extends java.lang.Object

Author:
  Yegor Kozlov

Field Summary
`static float` | `DEFAULT_CHARACTER_WIDTH` Width of one "standard character" of the default font in pixels.
`static int` | `EMU_PER_CENTIMETER`
`static int` | `EMU_PER_CHARACTER` Column widths are in fractional characters, this is the EMU equivalent.
`static int` | `EMU_PER_PIXEL` In Escher absolute distances are specified in English Metric Units (EMUs), occasionally referred to as A units; there are 360000 EMUs per centimeter, 914400 EMUs per inch, 12700 EMUs per point.
`static int` | `EMU_PER_POINT`
`static int` | `MASTER_DPI` Master DPI (576 pixels per inch).
`static int` | `PIXEL_DPI` Pixels DPI (96 pixels per inch)
`static int` | `POINT_DPI` Points DPI (72 pixels per inch)

Constructor Summary
`Units()`

Method Summary
`static int` | `charactersToEMU(double characters)`
`static int` | `columnWidthToEMU(int columnWidth)`
`static int` | `doubleToFixedPoint(double floatPoint)` Converts a value of type floating point to a FixedPoint
`static double` | `fixedPointToDouble(int fixedPoint)` Converts a value of type FixedPoint to a floating point
`static double` | `masterToPoints(int masterDPI)`
`static int` | `pixelToEMU(int pixels)` Converts pixels to EMUs
`static double` | `pixelToPoints(int pixel)`
`static int` | `pointsToMaster(double points)`
`static int` | `pointsToPixel(double points)`
`static int` | `toEMU(double points)` Converts points to EMUs
`static double` | `toPoints(long emu)` Converts EMUs to points
`static int` | `TwipsToEMU(short twips)`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### EMU_PER_PIXEL

    public static final int EMU_PER_PIXEL

  In Escher absolute distances are specified in English Metric Units (EMUs), occasionally referred to as A units; there are 360000 EMUs per centimeter, 914400 EMUs per inch, 12700 EMUs per point.

  See Also:
    Constant Field Values

### EMU_PER_POINT

    public static final int EMU_PER_POINT

See Also:
  Constant Field Values

### EMU_PER_CENTIMETER

    public static final int EMU_PER_CENTIMETER

See Also:
  Constant Field Values

### MASTER_DPI

    public static final int MASTER_DPI

  Master DPI (576 pixels per inch). Used by the reference coordinate system in PowerPoint (HSLF)

  See Also:
    Constant Field Values

### PIXEL_DPI

    public static final int PIXEL_DPI

  Pixels DPI (96 pixels per inch)

  See Also:
    Constant Field Values

### POINT_DPI

    public static final int POINT_DPI

  Points DPI (72 pixels per inch)

  See Also:
    Constant Field Values

### DEFAULT_CHARACTER_WIDTH

    public static final float DEFAULT_CHARACTER_WIDTH

  Width of one "standard character" of the default font in pixels. Same for Calibri and Arial. "Standard character" defined as the widest digit character in the given font. Copied from XSSFWorkbook, since that isn't available here.

  Note this is only valid for workbooks using the default Excel font.

  Would be nice to eventually support arbitrary document default fonts.

  See Also:
    Constant Field Values

### EMU_PER_CHARACTER

    public static final int EMU_PER_CHARACTER

  Column widths are in fractional characters, this is the EMU equivalent. One character is defined as the widest value for the integers 0-9 in the default font.

  See Also:
    Constant Field Values

Constructor Detail

### Units

    public Units()

Method Detail

### toEMU

    public static int toEMU(double points)

  Converts points to EMUs

  Parameters:
    `points` - points
  Returns:
    EMUs

### pixelToEMU

    public static int pixelToEMU(int pixels)

  Converts pixels to EMUs

  Parameters:
    `pixels` - pixels
  Returns:
    EMUs

### toPoints

    public static double toPoints(long emu)

  Converts EMUs to points

  Parameters:
    `emu` - emu
  Returns:
    points

### fixedPointToDouble

    public static double fixedPointToDouble(int fixedPoint)

  Converts a value of type FixedPoint to a floating point

  Parameters:
    `fixedPoint` - value in fixed point notation
  Returns:
    floating point (double)
  See Also:
    [MS-OSHARED] - 2.2.1.6 FixedPoint

### doubleToFixedPoint

    public static int doubleToFixedPoint(double floatPoint)

  Converts a value of type floating point to a FixedPoint

  Parameters:
    `floatPoint` - value in floating point notation
  Returns:
    fixedPoint value in fixed points notation
  See Also:
    [MS-OSHARED] - 2.2.1.6 FixedPoint

### masterToPoints

    public static double masterToPoints(int masterDPI)

### pointsToMaster

    public static int pointsToMaster(double points)

### pointsToPixel

    public static int pointsToPixel(double points)

### pixelToPoints

    public static double pixelToPoints(int pixel)

### charactersToEMU

    public static int charactersToEMU(double characters)

### columnWidthToEMU

    public static int columnWidthToEMU(int columnWidth)

  Parameters:
    `columnWidth` - specified in 256ths of a standard character
  Returns:
    equivalent EMUs

### TwipsToEMU

    public static int TwipsToEMU(short twips)

  Parameters:
    `twips` - (1/20th of a point) typically used for row heights
  Returns:
    equivalent EMUs

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Copyright 2017 The Apache Software Foundation or its licensors, as applicable.