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| java.lang.Object
 com.vividsolutions.jts.index.quadtree.DoubleBits
| DoubleBits | | public class DoubleBits (Code) | | DoubleBits manipulates Double numbers
by using bit manipulation and bit-field extraction.
For some operations (such as determining the exponent)
this is more accurate than using mathematical operations
(which suffer from round-off error).
The algorithms and constants in this class
apply only to IEEE-754 double-precision floating point format.
version:
1.7 |
| EXPONENT_BIAS | | final public static int EXPONENT_BIAS(Code) | | |
| DoubleBits | | public DoubleBits(double x)(Code) | | |
| biasedExponent | | public int biasedExponent()(Code) | | Determines the exponent for the number
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| exponent | | public static int exponent(double d)(Code) | | |
| getBit | | public int getBit(int i)(Code) | | |
| getDouble | | public double getDouble()(Code) | | |
| getExponent | | public int getExponent()(Code) | | Determines the exponent for the number
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| maximumCommonMantissa | | public static double maximumCommonMantissa(double d1, double d2)(Code) | | |
| numCommonMantissaBits | | public int numCommonMantissaBits(DoubleBits db)(Code) | | This computes the number of common most-significant bits in the mantissa.
It does not count the hidden bit, which is always 1.
It does not determine whether the numbers have the same exponent - if they do
not, the value computed by this function is meaningless.
Parameters:
db - the number of common most-significant mantissa bits |
| powerOf2 | | public static double powerOf2(int exp)(Code) | | |
| toBinaryString | | public static String toBinaryString(double d)(Code) | | |
| toString | | public String toString()(Code) | | A representation of the Double bits formatted for easy readability
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| truncateToPowerOfTwo | | public static double truncateToPowerOfTwo(double d)(Code) | | |
| zeroLowerBits | | public void zeroLowerBits(int nBits)(Code) | | |
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