Package com.google.zxing.common
Class DefaultGridSampler
java.lang.Object
com.google.zxing.common.GridSampler
com.google.zxing.common.DefaultGridSampler
- Author:
- Sean Owen
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Constructor SummaryConstructors
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Method SummaryModifier and TypeMethodDescriptionsampleGrid(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.sampleGrid(BitMatrix image, int dimensionX, int dimensionY, PerspectiveTransform transform) Methods inherited from class com.google.zxing.common.GridSamplercheckAndNudgePoints, getInstance, setGridSampler
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Constructor Details- 
DefaultGridSamplerpublic DefaultGridSampler()
 
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Method Details- 
sampleGridpublic 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:GridSamplerSamples an image for a rectangular matrix of bits of the given dimension. The sampling transformation is determined by the coordinates of 4 points, in the original and transformed image space.- Specified by:
- sampleGridin class- GridSampler
- Parameters:
- image- image to sample
- dimensionX- width of- BitMatrixto sample from image
- dimensionY- height of- BitMatrixto sample from image
- p1ToX- point 1 preimage X
- p1ToY- point 1 preimage Y
- p2ToX- point 2 preimage X
- p2ToY- point 2 preimage Y
- p3ToX- point 3 preimage X
- p3ToY- point 3 preimage Y
- p4ToX- point 4 preimage X
- p4ToY- point 4 preimage Y
- p1FromX- point 1 image X
- p1FromY- point 1 image Y
- p2FromX- point 2 image X
- p2FromY- point 2 image Y
- p3FromX- point 3 image X
- p3FromY- point 3 image Y
- p4FromX- point 4 image X
- p4FromY- point 4 image Y
- Returns:
- BitMatrixrepresenting 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
 
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sampleGridpublic BitMatrix sampleGrid(BitMatrix image, int dimensionX, int dimensionY, PerspectiveTransform transform) throws NotFoundException - Specified by:
- sampleGridin class- GridSampler
- Throws:
- NotFoundException
 
 
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