27 lines
987 B
Plaintext
27 lines
987 B
Plaintext
import vtkColorMaps from '@kitware/vtk.js/Rendering/Core/ColorTransferFunction/ColorMaps';
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import vtkColorTransferFunction from '@kitware/vtk.js/Rendering/Core/ColorTransferFunction';
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import vtkPiecewiseFunction from '@kitware/vtk.js/Common/DataModel/PiecewiseFunction';
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export default function setPetColorMapTransferFunctionForVolumeActor(
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volumeInfo
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) {
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const { volumeActor, preset } = volumeInfo;
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const mapper = volumeActor.getMapper();
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mapper.setSampleDistance(1.0);
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const cfun = vtkColorTransferFunction.newInstance();
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let presetToUse = preset ? preset : vtkColorMaps.getPresetByName('hsv');
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cfun.applyColorMap(presetToUse);
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cfun.setMappingRange(0, 5);
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volumeActor.getProperty().setRGBTransferFunction(0, cfun);
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// Create scalar opacity function
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const ofun = vtkPiecewiseFunction.newInstance();
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ofun.addPoint(0, 0.0);
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ofun.addPoint(0.1, 0.9);
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ofun.addPoint(5, 1.0);
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volumeActor.getProperty().setScalarOpacity(0, ofun);
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}
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