Java Utililty Methods floor

List of utility methods to do floor

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Description

The list of methods to do floor are organized into topic(s).

Method

intfloorInt(float x)
http://www.java-gaming.org/index.php?topic=24194.0 
return (int) (x + BIG_ENOUGH_FLOOR) - BIG_ENOUGH_INT;
intfloorLogBaseTwo(final int i)
Returns the log base 2 of an integer, rounded to the floor. 
checkPositiveInteger(i);
return 31 - Integer.numberOfLeadingZeros(i);
longfloorLong(final double x)
Returns (long) Math.floor(x). 
return (long) Math.floor(x);
floatfloormod(float a, float b)
floormod 
float r = a % b;
if (r < 0)
    r += b;
return (r);
longfloorMod(long x, long y)
floor Mod 
return x - floorDiv(x, y) * y;
longfloorMod(long x, long y)
Returns the floor modulus of the long arguments. 
return x - floorDiv(x, y) * y;
intfloorModExt(int dividend, int divisor)
Computes floored remainder or return divident for zero division. 
if (divisor == 0)
    return dividend;
return dividend - divisor * floorDiv(dividend, divisor);
intfloorModulo(int value, int divisor)

Calculates the remainder based on #floorDivide(int,int) . 

{@code floorModulo(1, 2) == 1}</li>
     *  <li>{@code floorModulo(0, 2) == 0}</li>
     *  <li>{@code floorModulo(-1, 2) == 1}</li>
     *  <li>{@code floorModulo(-2, 2) == 0}</li>
     *  <li>{@code floorModulo(-3, 2) == 1}</li>
     * </ul>
     *
     * @param   value       numerator
     * @param   divisor     divisor
        ...
byte[][]floorPlaneAndHorizToPlanView(final int[][] frameCells, final short frame[], final int h)
floor Plane And Horiz To Plan View 
final int w = (int) (Math.sin((camFOVx / 2) * Math.PI / 180) * h) * 2;
final int cwidth = frameCells.length;
final int cheight = frameCells[0].length;
final double angle = (double) camFOVx / 2 * Math.PI / 180; 
byte[][] result = new byte[w][h];
final int xdctr = cwidth / 2;
for (int y = 0; y < cheight; y++) {
    for (int x = 0; x < cwidth; x++) {
...
byte[][]floorPlaneToPlanView(int[][] frameCells, final int h)
Project floorplane from depth view into plan view 
final int w = (int) (Math.sin((camFOVx / 2) * Math.PI / 180) * h) * 2;
final int cwidth = frameCells.length;
final int cheight = frameCells[0].length;
final double angle = (double) camFOVx / 2 * Math.PI / 180; 
byte[][] result = new byte[w][h];
final int xdctr = cwidth / 2;
for (int y = 0; y < cheight; y++) {
    for (int x = 0; x < cwidth; x++) {
...