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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | import { distance2BetweenPoints } from 'vtk.js/Sources/Common/Core/Math';
import macro from 'vtk.js/Sources/macros';
import stateGenerator from 'vtk.js/Sources/Widgets/Widgets3D/LineWidget/state';
import vtkAbstractWidgetFactory from 'vtk.js/Sources/Widgets/Core/AbstractWidgetFactory';
import vtkArrowHandleRepresentation from 'vtk.js/Sources/Widgets/Representations/ArrowHandleRepresentation';
import vtkPlanePointManipulator from 'vtk.js/Sources/Widgets/Manipulators/PlaneManipulator';
import vtkPolyLineRepresentation from 'vtk.js/Sources/Widgets/Representations/PolyLineRepresentation';
import widgetBehavior from 'vtk.js/Sources/Widgets/Widgets3D/LineWidget/behavior';
import { Behavior } from 'vtk.js/Sources/Widgets/Representations/WidgetRepresentation/Constants';
import { ViewTypes } from 'vtk.js/Sources/Widgets/Core/WidgetManager/Constants';
import {
getPoint,
updateTextPosition,
} from 'vtk.js/Sources/Widgets/Widgets3D/LineWidget/helpers';
// ----------------------------------------------------------------------------
// Factory
// ----------------------------------------------------------------------------
function vtkLineWidget(publicAPI, model) {
model.classHierarchy.push('vtkLineWidget');
const superClass = { ...publicAPI };
// --- Widget Requirement ---------------------------------------------------
model.methodsToLink = [
'activeScaleFactor',
'activeColor',
'useActiveColor',
'glyphResolution',
'defaultScale',
'scaleInPixels',
];
publicAPI.getRepresentationsForViewType = (viewType) => {
switch (viewType) {
case ViewTypes.DEFAULT:
case ViewTypes.GEOMETRY:
case ViewTypes.SLICE:
case ViewTypes.VOLUME:
default:
return [
{
builder: vtkArrowHandleRepresentation,
labels: ['handle1'],
initialValues: {
/*
* This table sets the visibility of the handles' actors
* 1st actor is a displayActor, which hides a rendered object on the HTML layer.
* operating on its value allows to hide a handle to the user while still being
* able to detect its presence, so the user can move it. 2nd actor is a classic VTK
* actor which renders the object on the VTK scene
*/
visibilityFlagArray: [false, false],
coincidentTopologyParameters: {
Point: {
factor: -1.0,
offset: -1.0,
},
Line: {
factor: -1.0,
offset: -1.0,
},
Polygon: {
factor: -3.0,
offset: -3.0,
},
},
},
},
{
builder: vtkArrowHandleRepresentation,
labels: ['handle2'],
initialValues: {
/*
* This table sets the visibility of the handles' actors
* 1st actor is a displayActor, which hides a rendered object on the HTML layer.
* operating on its value allows to hide a handle to the user while still being
* able to detect its presence, so the user can move it. 2nd actor is a classic VTK
* actor which renders the object on the VTK scene
*/
visibilityFlagArray: [false, false],
coincidentTopologyParameters: {
Point: {
factor: -1.0,
offset: -1.0,
},
Line: {
factor: -1.0,
offset: -1.0,
},
Polygon: {
factor: -3.0,
offset: -3.0,
},
},
},
},
{
builder: vtkArrowHandleRepresentation,
labels: ['moveHandle'],
initialValues: {
visibilityFlagArray: [false, false],
coincidentTopologyParameters: {
Point: {
factor: -1.0,
offset: -1.0,
},
Line: {
factor: -1.0,
offset: -1.0,
},
Polygon: {
factor: -3.0,
offset: -3.0,
},
},
},
},
{
builder: vtkPolyLineRepresentation,
labels: ['handle1', 'handle2', 'moveHandle'],
initialValues: {
behavior: Behavior.HANDLE,
pickable: true,
},
},
];
}
};
// --- Public methods -------------------------------------------------------
publicAPI.getDistance = () => {
const p1 = getPoint(0, model.widgetState);
const p2 = getPoint(1, model.widgetState);
return p1 && p2 ? Math.sqrt(distance2BetweenPoints(p1, p2)) : 0;
};
publicAPI.setManipulator = (manipulator) => {
superClass.setManipulator(manipulator);
model.widgetState.getMoveHandle().setManipulator(manipulator);
model.widgetState.getHandle1().setManipulator(manipulator);
model.widgetState.getHandle2().setManipulator(manipulator);
};
// --------------------------------------------------------------------------
// initialization
// --------------------------------------------------------------------------
/**
* TBD: Why setting the move handle ?
*/
model.widgetState.onBoundsChange((bounds) => {
const center = [
(bounds[0] + bounds[1]) * 0.5,
(bounds[2] + bounds[3]) * 0.5,
(bounds[4] + bounds[5]) * 0.5,
];
model.widgetState.getMoveHandle().setOrigin(center);
});
let linePosSub = model.widgetState.getPositionOnLine().onModified(() => {
updateTextPosition(model);
});
// Default manipulator
publicAPI.setManipulator(
model.manipulator ||
vtkPlanePointManipulator.newInstance({ useCameraNormal: true })
);
publicAPI.delete = macro.chain(publicAPI.delete, () => {
linePosSub.unsubscribe();
linePosSub = null;
});
}
// ----------------------------------------------------------------------------
const defaultValues = (initialValues) => ({
// manipulator: null,
behavior: widgetBehavior,
widgetState: stateGenerator(),
...initialValues,
});
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, defaultValues(initialValues));
vtkAbstractWidgetFactory.extend(publicAPI, model, initialValues);
macro.setGet(publicAPI, model, ['manipulator']);
vtkLineWidget(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(extend, 'vtkLineWidget');
// ----------------------------------------------------------------------------
export default { newInstance, extend };
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