470 lines
16 KiB
TypeScript
470 lines
16 KiB
TypeScript
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import type * as p from "@bokehjs/core/properties"
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import {AbstractVTKPlot, AbstractVTKView} from "./vtklayout"
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import type {ColorMapper, VolumeType} from "./util"
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import {
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Interpolation,
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vtkns,
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data2VTKImageData,
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hexToRGB,
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vtkLutToMapper,
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} from "./util"
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export class VTKVolumePlotView extends AbstractVTKView {
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declare model: VTKVolumePlot
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protected _controllerWidget: any
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protected _vtk_image_data: any
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override connect_signals(): void {
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super.connect_signals()
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const {
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data, colormap, shadow, sampling, edge_gradient, rescale, ambient, diffuse,
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camera, specular, specular_power, display_volume, display_slices, slice_i,
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slice_j, slice_k, render_background, interpolation, controller_expanded,
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nan_opacity,
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} = this.model.properties
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this.on_change(data, () => {
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this._vtk_image_data = data2VTKImageData(this.model.data as VolumeType)
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this.invalidate_render()
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})
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this.on_change(colormap, () => {
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this.colormap_selector.value = this.model.colormap
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const event = new Event("change")
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this.colormap_selector.dispatchEvent(event)
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})
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this.on_change(shadow, () => {
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this.shadow_selector.value = this.model.shadow ? "1" : "0"
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const event = new Event("change")
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this.shadow_selector.dispatchEvent(event)
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})
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this.on_change(sampling, () => {
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this.sampling_slider.value = this.model.sampling.toFixed(2)
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const event = new Event("input")
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this.sampling_slider.dispatchEvent(event)
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})
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this.on_change(edge_gradient, () => {
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this.edge_gradient_slider.value = this.model.edge_gradient.toFixed(2)
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const event = new Event("input")
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this.edge_gradient_slider.dispatchEvent(event)
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})
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this.on_change(rescale, () => {
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this._controllerWidget.setRescaleColorMap(this.model.rescale)
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this._vtk_renwin.getRenderWindow().render()
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})
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this.on_change(ambient, () => {
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this.volume.getProperty().setAmbient(this.model.ambient)
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this._vtk_renwin.getRenderWindow().render()
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})
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this.on_change(diffuse, () => {
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this.volume.getProperty().setDiffuse(this.model.diffuse)
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this._vtk_renwin.getRenderWindow().render()
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})
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this.on_change(camera, () => {
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if (!this._setting_camera) {
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this._set_camera_state()
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this._vtk_renwin.getRenderWindow().render()
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}
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})
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this.on_change(specular, () => {
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this.volume.getProperty().setSpecular(this.model.specular)
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this._vtk_renwin.getRenderWindow().render()
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})
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this.on_change(specular_power, () => {
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this.volume.getProperty().setSpecularPower(this.model.specular_power)
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this._vtk_renwin.getRenderWindow().render()
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})
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this.on_change(display_volume, () => {
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this._set_volume_visibility(this.model.display_volume)
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this._vtk_renwin.getRenderWindow().render()
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})
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this.on_change(display_slices, () => {
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this._set_slices_visibility(this.model.display_slices)
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this._vtk_renwin.getRenderWindow().render()
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})
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this.on_change(slice_i, () => {
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if (this.image_actor_i !== undefined) {
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this.image_actor_i.getMapper().setISlice(this.model.slice_i)
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this._vtk_renwin.getRenderWindow().render()
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}
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})
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this.on_change(slice_j, () => {
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if (this.image_actor_j !== undefined) {
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this.image_actor_j.getMapper().setJSlice(this.model.slice_j)
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this._vtk_renwin.getRenderWindow().render()
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}
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})
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this.on_change(slice_k, () => {
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if (this.image_actor_k !== undefined) {
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this.image_actor_k.getMapper().setKSlice(this.model.slice_k)
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this._vtk_renwin.getRenderWindow().render()
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}
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})
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this.on_change(render_background, () => {
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this._vtk_renwin
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.getRenderer()
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.setBackground(...hexToRGB(this.model.render_background))
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this._vtk_renwin.getRenderWindow().render()
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})
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this.on_change(interpolation, () => {
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this._set_interpolation(this.model.interpolation)
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this._vtk_renwin.getRenderWindow().render()
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})
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this.on_change(controller_expanded, () => {
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if (this._controllerWidget != null) {
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this._controllerWidget.setExpanded(this.model.controller_expanded)
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}
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})
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this.on_change(nan_opacity, () => {
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const scalar_opacity = this.image_actor_i.getProperty().getScalarOpacity()
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scalar_opacity.get(["nodes"]).nodes[0].y = this.model.nan_opacity
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scalar_opacity.modified()
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this._vtk_renwin.getRenderWindow().render()
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})
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}
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override render(): void {
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this._vtk_renwin = null
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this._orientationWidget = null
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this._axes = null
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super.render()
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this._create_orientation_widget()
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this._set_axes()
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this._vtk_renwin.getRenderer().resetCamera()
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if (Object.keys(this.model.camera).length > 0) {
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this._set_camera_state()
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}
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this._get_camera_state()
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}
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override invalidate_render(): void {
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this._vtk_renwin = null
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super.invalidate_render()
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}
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init_vtk_renwin(): void {
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this._vtk_renwin = vtkns.FullScreenRenderWindow.newInstance({
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rootContainer: this.shadow_el,
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container: this._vtk_container,
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})
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}
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plot(): void {
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this._controllerWidget = vtkns.VolumeController.newInstance({
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size: [400, 150],
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rescaleColorMap: this.model.rescale,
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})
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this._plot_volume()
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this._plot_slices()
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this._controllerWidget.setupContent(
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this._vtk_renwin.getRenderWindow(),
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this.volume,
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true,
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)
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this._controllerWidget.setContainer(this.el)
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this._controllerWidget.setExpanded(this.model.controller_expanded)
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this._connect_js_controls()
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this._vtk_renwin.getRenderWindow().getInteractor()
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this._vtk_renwin.getRenderWindow().getInteractor().setDesiredUpdateRate(45)
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this._set_volume_visibility(this.model.display_volume)
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this._set_slices_visibility(this.model.display_slices)
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this._vtk_renwin
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.getRenderer()
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.setBackground(...hexToRGB(this.model.render_background))
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this._set_interpolation(this.model.interpolation)
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this._set_camera_state()
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}
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get vtk_image_data(): any {
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if (!this._vtk_image_data) {
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this._vtk_image_data = data2VTKImageData(this.model.data as VolumeType)
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}
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return this._vtk_image_data
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}
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get volume(): any {
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return this._vtk_renwin.getRenderer().getVolumes()[0]
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}
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get image_actor_i(): any {
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return this._vtk_renwin.getRenderer().getActors()[0]
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}
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get image_actor_j(): any {
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return this._vtk_renwin.getRenderer().getActors()[1]
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}
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get image_actor_k(): any {
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return this._vtk_renwin.getRenderer().getActors()[2]
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}
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get shadow_selector(): HTMLSelectElement {
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return this.el.querySelector(".js-shadow") as HTMLSelectElement
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}
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get edge_gradient_slider(): HTMLInputElement {
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return this.el.querySelector(".js-edge") as HTMLInputElement
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}
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get sampling_slider(): HTMLInputElement {
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return this.el.querySelector(".js-spacing") as HTMLInputElement
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}
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get colormap_selector(): HTMLSelectElement {
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return this.el.querySelector(".js-color-preset") as HTMLSelectElement
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}
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_connect_js_controls(): void {
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const {el: controller_el} = this._controllerWidget.get("el")
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if (controller_el !== undefined) {
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const controller_button = (controller_el as HTMLElement).querySelector(".js-button")
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controller_button!.addEventListener("click", () => this.model.controller_expanded = this._controllerWidget.getExpanded())
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}
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// Colormap selector
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this.colormap_selector.addEventListener("change", () => {
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this.model.colormap = this.colormap_selector.value
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})
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if (!this.model.colormap) {
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this.model.colormap = this.colormap_selector.value
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} else {
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this.model.properties.colormap.change.emit()
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}
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// Shadow selector
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this.shadow_selector.addEventListener("change", () => {
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this.model.shadow = !!Number(this.shadow_selector.value)
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})
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if ((this.model.shadow = !!Number(this.shadow_selector.value))) {
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this.model.properties.shadow.change.emit()
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}
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// Sampling slider
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this.sampling_slider.addEventListener("input", () => {
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const js_sampling_value = Number(this.sampling_slider.value)
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if (Math.abs(this.model.sampling - js_sampling_value) >= 5e-3) {
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this.model.sampling = js_sampling_value
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}
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})
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if (Math.abs(this.model.sampling - Number(this.shadow_selector.value)) >= 5e-3) {
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this.model.properties.sampling.change.emit()
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}
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// Edge Gradient slider
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this.edge_gradient_slider.addEventListener("input", () => {
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const js_edge_gradient_value = Number(this.edge_gradient_slider.value)
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if (Math.abs(this.model.edge_gradient - js_edge_gradient_value) >= 5e-3) {
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this.model.edge_gradient = js_edge_gradient_value
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}
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})
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if (Math.abs(this.model.edge_gradient - Number(this.edge_gradient_slider.value)) >= 5e-3) {
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this.model.properties.edge_gradient.change.emit()
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}
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}
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_plot_slices(): void {
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const source = this._vtk_image_data
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const image_actor_i = vtkns.ImageSlice.newInstance()
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const image_actor_j = vtkns.ImageSlice.newInstance()
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const image_actor_k = vtkns.ImageSlice.newInstance()
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const image_mapper_i = vtkns.ImageMapper.newInstance()
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const image_mapper_j = vtkns.ImageMapper.newInstance()
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const image_mapper_k = vtkns.ImageMapper.newInstance()
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image_mapper_i.setInputData(source)
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image_mapper_i.setISlice(this.model.slice_i)
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image_actor_i.setMapper(image_mapper_i)
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image_mapper_j.setInputData(source)
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image_mapper_j.setJSlice(this.model.slice_j)
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image_actor_j.setMapper(image_mapper_j)
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image_mapper_k.setInputData(source)
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image_mapper_k.setKSlice(this.model.slice_k)
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image_actor_k.setMapper(image_mapper_k)
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// set_color and opacity
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const piecewiseFunction = vtkns.PiecewiseFunction.newInstance()
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const lookupTable = this.volume.getProperty().getRGBTransferFunction(0)
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const range = this.volume.getMapper().getInputData().getPointData().getScalars().getRange()
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piecewiseFunction.removeAllPoints()
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piecewiseFunction.addPoint(range[0]-1, this.model.nan_opacity)
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piecewiseFunction.addPoint(range[0], 1)
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piecewiseFunction.addPoint(range[1], 1)
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const property = image_actor_i.getProperty()
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image_actor_j.setProperty(property)
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image_actor_k.setProperty(property)
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property.setRGBTransferFunction(lookupTable)
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property.setScalarOpacity(piecewiseFunction)
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const renderer = this._vtk_renwin.getRenderer()
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renderer.addActor(image_actor_i)
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renderer.addActor(image_actor_j)
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renderer.addActor(image_actor_k)
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}
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_plot_volume(): void {
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//Create vtk volume and add it to the scene
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const source = this.vtk_image_data
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const actor = vtkns.Volume.newInstance()
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const mapper = vtkns.VolumeMapper.newInstance()
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actor.setMapper(mapper)
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mapper.setInputData(source)
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const dataArray =
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source.getPointData().getScalars() || source.getPointData().getArrays()[0]
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const dataRange = dataArray.getRange()
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const lookupTable = vtkns.ColorTransferFunction.newInstance()
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if (this.model.colormap != null) {
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const preset = vtkns.ColorTransferFunction.vtkColorMaps.getPresetByName(this.model.colormap)
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lookupTable.applyColorMap(preset)
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}
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lookupTable.onModified(
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() => (this.model.mapper = vtkLutToMapper(lookupTable)),
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)
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const piecewiseFunction = vtkns.PiecewiseFunction.newInstance()
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const sampleDistance =
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0.7 *
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Math.sqrt(
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source
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.getSpacing()
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.map((v: number) => v * v)
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.reduce((a: number, b: number) => a + b, 0),
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)
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mapper.setSampleDistance(sampleDistance)
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actor.getProperty().setRGBTransferFunction(0, lookupTable)
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actor.getProperty().setScalarOpacity(0, piecewiseFunction)
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actor.getProperty().setInterpolationTypeToFastLinear()
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// actor.getProperty().setInterpolationTypeToLinear();
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// For better looking volume rendering
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// - distance in world coordinates a scalar opacity of 1.0
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actor
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.getProperty()
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.setScalarOpacityUnitDistance(
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0,
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vtkns.BoundingBox.getDiagonalLength(source.getBounds()) /
|
||
|
|
Math.max(...source.getDimensions()),
|
||
|
|
)
|
||
|
|
// - control how we emphasize surface boundaries
|
||
|
|
// => max should be around the average gradient magnitude for the
|
||
|
|
// volume or maybe average plus one std dev of the gradient magnitude
|
||
|
|
// (adjusted for spacing, this is a world coordinate gradient, not a
|
||
|
|
// pixel gradient)
|
||
|
|
// => max hack: (dataRange[1] - dataRange[0]) * 0.05
|
||
|
|
actor.getProperty().setGradientOpacityMinimumValue(0, 0)
|
||
|
|
actor
|
||
|
|
.getProperty()
|
||
|
|
.setGradientOpacityMaximumValue(0, (dataRange[1] - dataRange[0]) * 0.05)
|
||
|
|
// - Use shading based on gradient
|
||
|
|
actor.getProperty().setShade(this.model.shadow)
|
||
|
|
actor.getProperty().setUseGradientOpacity(0, true)
|
||
|
|
// - generic good default
|
||
|
|
actor.getProperty().setGradientOpacityMinimumOpacity(0, 0.0)
|
||
|
|
actor.getProperty().setGradientOpacityMaximumOpacity(0, 1.0)
|
||
|
|
actor.getProperty().setAmbient(this.model.ambient)
|
||
|
|
actor.getProperty().setDiffuse(this.model.diffuse)
|
||
|
|
actor.getProperty().setSpecular(this.model.specular)
|
||
|
|
actor.getProperty().setSpecularPower(this.model.specular_power)
|
||
|
|
|
||
|
|
this._vtk_renwin.getRenderer().addVolume(actor)
|
||
|
|
}
|
||
|
|
|
||
|
|
_set_interpolation(interpolation: Interpolation): void {
|
||
|
|
if (interpolation == "fast_linear") {
|
||
|
|
this.volume.getProperty().setInterpolationTypeToFastLinear()
|
||
|
|
this.image_actor_i.getProperty().setInterpolationTypeToLinear()
|
||
|
|
} else if (interpolation == "linear") {
|
||
|
|
this.volume.getProperty().setInterpolationTypeToLinear()
|
||
|
|
this.image_actor_i.getProperty().setInterpolationTypeToLinear()
|
||
|
|
} else {
|
||
|
|
//nearest
|
||
|
|
this.volume.getProperty().setInterpolationTypeToNearest()
|
||
|
|
this.image_actor_i.getProperty().setInterpolationTypeToNearest()
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
_set_slices_visibility(visibility: boolean): void {
|
||
|
|
this.image_actor_i.setVisibility(visibility)
|
||
|
|
this.image_actor_j.setVisibility(visibility)
|
||
|
|
this.image_actor_k.setVisibility(visibility)
|
||
|
|
}
|
||
|
|
|
||
|
|
_set_volume_visibility(visibility: boolean): void {
|
||
|
|
this.volume.setVisibility(visibility)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
export namespace VTKVolumePlot {
|
||
|
|
export type Attrs = p.AttrsOf<Props>
|
||
|
|
export type Props = AbstractVTKPlot.Props & {
|
||
|
|
ambient: p.Property<number>
|
||
|
|
colormap: p.Property<string>
|
||
|
|
diffuse: p.Property<number>
|
||
|
|
display_slices: p.Property<boolean>
|
||
|
|
display_volume: p.Property<boolean>
|
||
|
|
edge_gradient: p.Property<number>
|
||
|
|
interpolation: p.Property<Interpolation>
|
||
|
|
mapper: p.Property<ColorMapper>
|
||
|
|
nan_opacity: p.Property<number>
|
||
|
|
render_background: p.Property<string>
|
||
|
|
rescale: p.Property<boolean>
|
||
|
|
sampling: p.Property<number>
|
||
|
|
shadow: p.Property<boolean>
|
||
|
|
slice_i: p.Property<number>
|
||
|
|
slice_j: p.Property<number>
|
||
|
|
slice_k: p.Property<number>
|
||
|
|
specular: p.Property<number>
|
||
|
|
specular_power: p.Property<number>
|
||
|
|
controller_expanded: p.Property<boolean>
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
export interface VTKVolumePlot extends VTKVolumePlot.Attrs {}
|
||
|
|
|
||
|
|
export class VTKVolumePlot extends AbstractVTKPlot {
|
||
|
|
declare properties: VTKVolumePlot.Props
|
||
|
|
|
||
|
|
constructor(attrs?: Partial<VTKVolumePlot.Attrs>) {
|
||
|
|
super(attrs)
|
||
|
|
}
|
||
|
|
|
||
|
|
static {
|
||
|
|
this.prototype.default_view = VTKVolumePlotView
|
||
|
|
|
||
|
|
this.define<VTKVolumePlot.Props>(({Any, Array, Boolean, Int, Number, String, Struct}) => ({
|
||
|
|
ambient: [ Number, 0.2 ],
|
||
|
|
colormap: [ String ],
|
||
|
|
data: [ Any ],
|
||
|
|
diffuse: [ Number, 0.7 ],
|
||
|
|
display_slices: [ Boolean, false ],
|
||
|
|
display_volume: [ Boolean, true ],
|
||
|
|
edge_gradient: [ Number, 0.2 ],
|
||
|
|
interpolation: [ Interpolation, "fast_linear"],
|
||
|
|
mapper: [ Struct({palette: Array(String), low: Number, high: Number}), {palette: [], low: 0, high: 0} ],
|
||
|
|
nan_opacity: [ Number, 1 ],
|
||
|
|
render_background: [ String, "#52576e" ],
|
||
|
|
rescale: [ Boolean, false ],
|
||
|
|
sampling: [ Number, 0.4 ],
|
||
|
|
shadow: [ Boolean, true ],
|
||
|
|
slice_i: [ Int, 0 ],
|
||
|
|
slice_j: [ Int, 0 ],
|
||
|
|
slice_k: [ Int, 0 ],
|
||
|
|
specular: [ Number, 0.3 ],
|
||
|
|
specular_power: [ Number, 8.0 ],
|
||
|
|
controller_expanded: [ Boolean, true ],
|
||
|
|
}))
|
||
|
|
|
||
|
|
this.override<VTKVolumePlot.Props>({
|
||
|
|
height: 300,
|
||
|
|
width: 300,
|
||
|
|
})
|
||
|
|
}
|
||
|
|
}
|