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| 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 | 1x 216x 216x 216x 5x 5x 5x 216x 216x 12x 10x 10x 10x 12x 216x 216x 216x 207x 216x 216x 1x 1x 3988x 216x 216x 1x 216x 216x 216x 216x 216x 1x | import macro from 'vtk.js/Sources/macros';
import * as vtkMath from 'vtk.js/Sources/Common/Core/Math';
import { vec3 } from 'gl-matrix';
// ----------------------------------------------------------------------------
export const LIGHT_TYPES = ['HeadLight', 'CameraLight', 'SceneLight'];
// ----------------------------------------------------------------------------
// vtkLight methods
// ----------------------------------------------------------------------------
function vtkLight(publicAPI, model) {
// Set our className
model.classHierarchy.push('vtkLight');
const tmpVec = new Float64Array(3);
publicAPI.getTransformedPosition = () => {
Iif (model.transformMatrix) {
vec3.transformMat4(tmpVec, model.position, model.transformMatrix);
} else {
vec3.set(tmpVec, model.position[0], model.position[1], model.position[2]);
}
return tmpVec;
};
publicAPI.getTransformedFocalPoint = () => {
if (model.transformMatrix) {
vec3.transformMat4(tmpVec, model.focalPoint, model.transformMatrix);
} else {
vec3.set(
tmpVec,
model.focalPoint[0],
model.focalPoint[1],
model.focalPoint[2]
);
}
return tmpVec;
};
publicAPI.getDirection = () => {
if (model.directionMTime < model.mtime) {
vec3.sub(model.direction, model.focalPoint, model.position);
vtkMath.normalize(model.direction);
model.directionMTime = model.mtime;
}
return model.direction;
};
// Sets the direction from a vec3 instead of a focal point
publicAPI.setDirection = (directionVector) => {
const newFocalPoint = new Float64Array(3);
vec3.sub(newFocalPoint, model.position, directionVector);
model.focalPoint = newFocalPoint;
};
publicAPI.setDirectionAngle = (elevation, azimuth) => {
const elevationRadians = vtkMath.radiansFromDegrees(elevation);
const azimuthRadians = vtkMath.radiansFromDegrees(azimuth);
publicAPI.setPosition(
Math.cos(elevationRadians) * Math.sin(azimuthRadians),
Math.sin(elevationRadians),
Math.cos(elevationRadians) * Math.cos(azimuthRadians)
);
publicAPI.setFocalPoint(0, 0, 0);
publicAPI.setPositional(0);
};
publicAPI.setLightTypeToHeadLight = () => {
publicAPI.setLightType('HeadLight');
};
publicAPI.setLightTypeToCameraLight = () => {
publicAPI.setLightType('CameraLight');
};
publicAPI.setLightTypeToSceneLight = () => {
publicAPI.setTransformMatrix(null);
publicAPI.setLightType('SceneLight');
};
publicAPI.lightTypeIsHeadLight = () => model.lightType === 'HeadLight';
publicAPI.lightTypeIsSceneLight = () => model.lightType === 'SceneLight';
publicAPI.lightTypeIsCameraLight = () => model.lightType === 'CameraLight';
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {
switch: true,
intensity: 1,
color: [1, 1, 1],
position: [0, 0, 1],
focalPoint: [0, 0, 0],
positional: false,
exponent: 1,
coneAngle: 30,
coneFalloff: 5,
attenuationValues: [1, 0, 0],
transformMatrix: null,
lightType: 'SceneLight',
shadowAttenuation: 1,
direction: [0, 0, 0],
directionMTime: 0,
};
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
// Build VTK API
macro.obj(publicAPI, model);
macro.setGet(publicAPI, model, [
'intensity',
'switch',
'positional',
'exponent',
'coneAngle',
'coneFalloff',
'transformMatrix',
'lightType',
'shadowAttenuation',
'attenuationValues',
]);
macro.setGetArray(
publicAPI,
model,
['color', 'position', 'focalPoint', 'attenuationValues'],
3
);
// Object methods
vtkLight(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(extend, 'vtkLight');
// ----------------------------------------------------------------------------
export default { newInstance, extend, LIGHT_TYPES };
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