Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 | 2x 2x 2x 2x 2x 2x 4x 2x 1x | import { Types } from '@cornerstonejs/core';
import { utilities as csUtils } from '@cornerstonejs/core';
import { getToolGroup } from '../../store/ToolGroupManager';
import BrushTool from '../../tools/segmentation/BrushTool';
import { getBoundingBoxAroundShapeIJK } from '../boundingBox/getBoundingBoxAroundShape';
export type ThresholdInformation = {
volume: Types.IImageVolume;
lower: number;
upper: number;
};
export function getBrushToolInstances(toolGroupId: string, toolName?: string) {
const toolGroup = getToolGroup(toolGroupId);
Iif (toolGroup === undefined) {
return;
}
const toolInstances = toolGroup._toolInstances;
Iif (!Object.keys(toolInstances).length) {
return;
}
Iif (toolName && toolInstances[toolName]) {
return [toolInstances[toolName]];
}
// For each tool that has BrushTool as base class, set the brush size.
const brushBasedToolInstances = Object.values(toolInstances).filter(
(toolInstance) => toolInstance instanceof BrushTool
) as BrushTool[];
return brushBasedToolInstances;
}
const equalsCheck = (a, b) => {
return JSON.stringify(a) === JSON.stringify(b);
};
/**
* Given the center of a voxel in world coordinates, calculate the voxel
* corners in world coords to calculate the voxel overlap in another volume
*/
export function getVoxelOverlap(
imageData,
dimensions,
voxelSpacing,
voxelCenter
) {
const voxelCornersWorld = [];
for (let i = 0; i < 2; i++) {
for (let j = 0; j < 2; j++) {
for (let k = 0; k < 2; k++) {
const point = [...voxelCenter]; // Create a new point from voxelCenter
point[0] = point[0] + ((i * 2 - 1) * voxelSpacing[0]) / 2;
point[1] = point[1] + ((j * 2 - 1) * voxelSpacing[1]) / 2;
point[2] = point[2] + ((k * 2 - 1) * voxelSpacing[2]) / 2;
voxelCornersWorld.push(point);
}
}
}
const voxelCornersIJK = voxelCornersWorld.map(
(world) => csUtils.transformWorldToIndex(imageData, world) as Types.Point3
);
const overlapBounds = getBoundingBoxAroundShapeIJK(
voxelCornersIJK,
dimensions
);
return overlapBounds;
}
/**
* Prepare a list of volume information objects for callback functions
*/
export function processVolumes(
segmentationVolume: Types.IImageVolume,
thresholdVolumeInformation: ThresholdInformation[]
) {
const { spacing: segmentationSpacing } = segmentationVolume;
const scalarData = segmentationVolume.getScalarData();
// prepare a list of volume information objects for callback functions
const volumeInfoList = [];
let baseVolumeIdx = 0;
for (let i = 0; i < thresholdVolumeInformation.length; i++) {
const { imageData, spacing, dimensions } =
thresholdVolumeInformation[i].volume;
const volumeSize =
thresholdVolumeInformation[i].volume.getScalarData().length;
// discover the index of the volume the segmentation data is based on
if (
volumeSize === scalarData.length &&
equalsCheck(spacing, segmentationSpacing)
) {
baseVolumeIdx = i;
}
// prepare information used in callback functions
const referenceValues = imageData.getPointData().getScalars().getData();
const lower = thresholdVolumeInformation[i].lower;
const upper = thresholdVolumeInformation[i].upper;
volumeInfoList.push({
imageData,
referenceValues,
lower,
upper,
spacing,
dimensions,
volumeSize,
});
}
return {
volumeInfoList,
baseVolumeIdx,
};
}
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