bvv.core.blockmath

Class FindRequiredBlocks

java.lang.Object

bvv.core.blockmath.FindRequiredBlocks

public class FindRequiredBlocks
extends Object

Constructor Summary

Constructors

Constructor and Description
FindRequiredBlocks()

Method Summary

Modifier and Type	Method and Description
static RequiredBlocks	getRequiredBlocks(net.imglib2.algorithm.kdtree.ConvexPolytope clip, int[] blockSize, long[] gridMin, long[] gridMax) Given an interval split into regular blocks of size blockSize.
static RequiredBlocks	getRequiredLevelBlocksFrustum(org.joml.Matrix4fc levelToNDC, int[] blockSize, long[] gridMin, long[] gridMax) Backproject NDC (-1,-1,-1) ... (1,1,1) to source image and find overlapping blocks.
static net.imglib2.algorithm.kdtree.ConvexPolytope	scaleClippingPolytope(net.imglib2.algorithm.kdtree.ConvexPolytope clip, int[] blockSize) Creates a clipping polytope in grid space from clip by scaling with inverse blockSize.
static net.imglib2.algorithm.kdtree.ConvexPolytope	shrinkClippingPolytope(net.imglib2.algorithm.kdtree.ConvexPolytope clip, int[] blockSize) Creates a new clipping polytope by shifting the planes of clip such that we only have to check the (0, 0) corner of cells.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FindRequiredBlocks

public FindRequiredBlocks()

Method Detail

shrinkClippingPolytope

public static net.imglib2.algorithm.kdtree.ConvexPolytope shrinkClippingPolytope(net.imglib2.algorithm.kdtree.ConvexPolytope clip,
                                                                                 int[] blockSize)

Creates a new clipping polytope by shifting the planes of clip such that we only have to check the (0, 0) corner of cells.

(0, 0) is contained in the created polytope, if and only if the block (-0.5, -0.5) .. (blockSize[0]-0.5, blockSize[1]-0.5) overlaps the original clipping polytope clip.

Works for arbitrary number of dimensions.

Parameters:

clip -

blockSize -

Returns:

scaleClippingPolytope

public static net.imglib2.algorithm.kdtree.ConvexPolytope scaleClippingPolytope(net.imglib2.algorithm.kdtree.ConvexPolytope clip,
                                                                                int[] blockSize)

Creates a clipping polytope in grid space from clip by scaling with inverse blockSize.

Parameters:

clip -

blockSize -

Returns:

getRequiredBlocks

public static RequiredBlocks getRequiredBlocks(net.imglib2.algorithm.kdtree.ConvexPolytope clip,
                                               int[] blockSize,
                                               long[] gridMin,
                                               long[] gridMax)

Given an interval split into regular blocks of size blockSize. Which blocks are contained in the specified clipping volume?

Parameters:

clip - in voxel coordinates

blockSize -

gridMin -

gridMax -

Returns:

getRequiredLevelBlocksFrustum

public static RequiredBlocks getRequiredLevelBlocksFrustum(org.joml.Matrix4fc levelToNDC,
                                                           int[] blockSize,
                                                           long[] gridMin,
                                                           long[] gridMax)

Backproject NDC (-1,-1,-1) ... (1,1,1) to source image and find overlapping blocks.

Parameters:

levelToNDC - Projection * View * Model * Upscale matrix

blockSize -

gridMin -

gridMax -

Returns: