com.google.zxing.common
Class DefaultGridSampler

java.lang.Object
  extended by com.google.zxing.common.GridSampler
      extended by com.google.zxing.common.DefaultGridSampler

public final class DefaultGridSampler
extends GridSampler

Author:
Sean Owen

Constructor Summary
DefaultGridSampler()
           
 
Method Summary
 BitMatrix sampleGrid(BitMatrix image, int dimensionX, int dimensionY, float p1ToX, float p1ToY, float p2ToX, float p2ToY, float p3ToX, float p3ToY, float p4ToX, float p4ToY, float p1FromX, float p1FromY, float p2FromX, float p2FromY, float p3FromX, float p3FromY, float p4FromX, float p4FromY)
          Samples an image for a rectangular matrix of bits of the given dimension.
 BitMatrix sampleGrid(BitMatrix image, int dimensionX, int dimensionY, PerspectiveTransform transform)
           
 
Methods inherited from class com.google.zxing.common.GridSampler
checkAndNudgePoints, getInstance, setGridSampler
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DefaultGridSampler

public DefaultGridSampler()
Method Detail

sampleGrid

public BitMatrix sampleGrid(BitMatrix image,
                            int dimensionX,
                            int dimensionY,
                            float p1ToX,
                            float p1ToY,
                            float p2ToX,
                            float p2ToY,
                            float p3ToX,
                            float p3ToY,
                            float p4ToX,
                            float p4ToY,
                            float p1FromX,
                            float p1FromY,
                            float p2FromX,
                            float p2FromY,
                            float p3FromX,
                            float p3FromY,
                            float p4FromX,
                            float p4FromY)
                     throws NotFoundException
Description copied from class: GridSampler
Samples an image for a rectangular matrix of bits of the given dimension.

Specified by:
sampleGrid in class GridSampler
Parameters:
image - image to sample
dimensionX - width of BitMatrix to sample from image
dimensionY - height of BitMatrix to sample from image
Returns:
BitMatrix representing a grid of points sampled from the image within a region defined by the "from" parameters
Throws:
NotFoundException - if image can't be sampled, for example, if the transformation defined by the given points is invalid or results in sampling outside the image boundaries

sampleGrid

public BitMatrix sampleGrid(BitMatrix image,
                            int dimensionX,
                            int dimensionY,
                            PerspectiveTransform transform)
                     throws NotFoundException
Specified by:
sampleGrid in class GridSampler
Throws:
NotFoundException