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 | import {
VolumeViewport,
utilities as csUtils,
cache,
StackViewport,
} from '@cornerstonejs/core';
function extractWindowLevelRegionToolData(viewport) {
if (viewport instanceof VolumeViewport) {
return extractImageDataVolume(viewport);
}
if (viewport instanceof StackViewport) {
return extractImageDataStack(viewport);
}
throw new Error('Viewport not supported');
}
function extractImageDataVolume(viewport) {
const { scalarData, width, height } =
csUtils.getCurrentVolumeViewportSlice(viewport);
const { min: minPixelValue, max: maxPixelValue } =
csUtils.getMinMax(scalarData);
const volumeId = viewport.getVolumeId();
const volume = cache.getVolume(volumeId);
// @ts-ignore
const { metadata, cornerstoneImageMetaData } = volume;
const { Rows: rows, Columns: columns } = metadata;
const { color } = cornerstoneImageMetaData;
return {
scalarData,
width,
height,
minPixelValue,
maxPixelValue,
rows,
columns,
color,
};
}
function extractImageDataStack(viewport) {
const imageData = viewport.getImageData();
const { scalarData } = imageData;
const { min: minPixelValue, max: maxPixelValue } =
csUtils.getMinMax(scalarData);
const width = imageData.dimensions[0];
const height = imageData.dimensions[1];
const { rows, columns, color } = viewport.getCornerstoneImage();
return {
scalarData,
width,
height,
minPixelValue,
maxPixelValue,
rows,
columns,
color,
};
}
export { extractWindowLevelRegionToolData };
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