molstar
Version:
A comprehensive macromolecular library.
229 lines (228 loc) • 10.4 kB
JavaScript
/**
* Copyright (c) 2020-2025 mol* contributors, licensed under MIT, See LICENSE file for more info.
*
* @author Alexander Rose <alexander.rose@weirdbyte.de>
*/
import { hashFnv32a } from '../../../mol-data/util';
import { LocationIterator } from '../../../mol-geo/util/location-iterator';
import { calculateTransformBoundingSphere, createTextureImage } from '../../../mol-gl/renderable/util';
import { Sphere3D } from '../../../mol-math/geometry';
import { Vec2, Vec4, Vec3, Quat, Mat4 } from '../../../mol-math/linear-algebra';
import { ValueCell } from '../../../mol-util';
import { ParamDefinition as PD } from '../../../mol-util/param-definition';
import { BaseGeometry } from '../base';
import { createColors } from '../color-data';
import { createMarkers } from '../marker-data';
import { createEmptyOverpaint } from '../overpaint-data';
import { createEmptyTransparency } from '../transparency-data';
import { fillSerial } from '../../../mol-util/array';
import { createEmptyClipping } from '../clipping-data';
import { NullLocation } from '../../../mol-model/location';
import { QuadPositions } from '../../../mol-gl/compute/util';
import { createEmptySubstance } from '../substance-data';
import { createEmptyEmissive } from '../emissive-data';
const QuadIndices = new Uint32Array([
0, 1, 2,
1, 3, 2
]);
const QuadUvs = new Float32Array([
0, 1,
0, 0,
1, 1,
1, 0
]);
export const InterpolationTypes = {
'nearest': 'Nearest',
'catmulrom': 'Catmulrom (Cubic)',
'mitchell': 'Mitchell (Cubic)',
'bspline': 'B-Spline (Cubic)'
};
export const InterpolationTypeNames = Object.keys(InterpolationTypes);
export { Image };
var Image;
(function (Image) {
function createEmptyTrim() {
return { type: 0, center: Vec3(), rotation: Quat(), scale: Vec3(), transform: Mat4() };
}
Image.createEmptyTrim = createEmptyTrim;
function create(imageTexture, corners, groupTexture, valueTexture, trim, isoLevel, image) {
return image ?
update(imageTexture, corners, groupTexture, valueTexture, trim, isoLevel, image) :
fromData(imageTexture, corners, groupTexture, valueTexture, trim, isoLevel);
}
Image.create = create;
function hashCode(image) {
return hashFnv32a([
image.cornerBuffer.ref.version
]);
}
function fromData(imageTexture, corners, groupTexture, valueTexture, trim, isoLevel) {
const boundingSphere = Sphere3D();
let currentHash = -1;
const width = imageTexture.width;
const height = imageTexture.height;
const image = {
kind: 'image',
imageTexture: ValueCell.create(imageTexture),
imageTextureDim: ValueCell.create(Vec2.create(width, height)),
cornerBuffer: ValueCell.create(corners),
groupTexture: ValueCell.create(groupTexture),
valueTexture: ValueCell.create(valueTexture),
trimType: ValueCell.create(trim.type),
trimCenter: ValueCell.create(trim.center),
trimRotation: ValueCell.create(trim.rotation),
trimScale: ValueCell.create(trim.scale),
trimTransform: ValueCell.create(trim.transform),
isoLevel: ValueCell.create(isoLevel),
get boundingSphere() {
const newHash = hashCode(image);
if (newHash !== currentHash) {
const b = getBoundingSphere(image.cornerBuffer.ref.value);
Sphere3D.copy(boundingSphere, b);
currentHash = newHash;
}
return boundingSphere;
},
};
return image;
}
function update(imageTexture, corners, groupTexture, valueTexture, trim, isoLevel, image) {
const width = imageTexture.width;
const height = imageTexture.height;
ValueCell.update(image.imageTexture, imageTexture);
ValueCell.update(image.imageTextureDim, Vec2.set(image.imageTextureDim.ref.value, width, height));
ValueCell.update(image.cornerBuffer, corners);
ValueCell.update(image.groupTexture, groupTexture);
ValueCell.update(image.valueTexture, valueTexture);
ValueCell.updateIfChanged(image.trimType, trim.type);
ValueCell.update(image.trimCenter, Vec3.copy(image.trimCenter.ref.value, trim.center));
ValueCell.update(image.trimRotation, Quat.copy(image.trimRotation.ref.value, trim.rotation));
ValueCell.update(image.trimScale, Vec3.copy(image.trimScale.ref.value, trim.scale));
ValueCell.update(image.trimTransform, Mat4.copy(image.trimTransform.ref.value, trim.transform));
ValueCell.updateIfChanged(image.isoLevel, isoLevel);
return image;
}
function createEmpty(image) {
const imageTexture = createTextureImage(0, 4, Uint8Array);
const corners = image ? image.cornerBuffer.ref.value : new Float32Array(8 * 3);
const groupTexture = createTextureImage(0, 4, Uint8Array);
const valueTexture = createTextureImage(0, 1, Float32Array);
const trim = createEmptyTrim();
return create(imageTexture, corners, groupTexture, valueTexture, trim, -1, image);
}
Image.createEmpty = createEmpty;
Image.Params = {
...BaseGeometry.Params,
interpolation: PD.Select('bspline', PD.objectToOptions(InterpolationTypes)),
};
Image.Utils = {
Params: Image.Params,
createEmpty,
createValues,
createValuesSimple,
updateValues,
updateBoundingSphere,
createRenderableState,
updateRenderableState,
createPositionIterator
};
function createPositionIterator(_image, _transform) {
return LocationIterator(1, 1, 1, () => NullLocation);
}
function createValues(image, transform, locationIt, theme, props) {
const { instanceCount, groupCount } = locationIt;
const positionIt = createPositionIterator(image, transform);
const color = createColors(locationIt, positionIt, theme.color);
const marker = props.instanceGranularity
? createMarkers(instanceCount, 'instance')
: createMarkers(instanceCount * groupCount, 'groupInstance');
const overpaint = createEmptyOverpaint();
const transparency = createEmptyTransparency();
const emissive = createEmptyEmissive();
const material = createEmptySubstance();
const clipping = createEmptyClipping();
const counts = { drawCount: QuadIndices.length, vertexCount: QuadPositions.length / 3, groupCount, instanceCount };
const invariantBoundingSphere = Sphere3D.clone(image.boundingSphere);
const boundingSphere = calculateTransformBoundingSphere(invariantBoundingSphere, transform.aTransform.ref.value, instanceCount, 0);
return {
dGeometryType: ValueCell.create('image'),
...color,
...marker,
...overpaint,
...transparency,
...emissive,
...material,
...clipping,
...transform,
...BaseGeometry.createValues(props, counts),
aPosition: image.cornerBuffer,
aUv: ValueCell.create(QuadUvs),
elements: ValueCell.create(QuadIndices),
// aGroup is used as a vertex index here, group id is in tGroupTex
aGroup: ValueCell.create(fillSerial(new Float32Array(4))),
boundingSphere: ValueCell.create(boundingSphere),
invariantBoundingSphere: ValueCell.create(invariantBoundingSphere),
uInvariantBoundingSphere: ValueCell.create(Vec4.ofSphere(invariantBoundingSphere)),
dInterpolation: ValueCell.create(props.interpolation),
uImageTexDim: image.imageTextureDim,
tImageTex: image.imageTexture,
tGroupTex: image.groupTexture,
tValueTex: image.valueTexture,
uTrimType: image.trimType,
uTrimCenter: image.trimCenter,
uTrimRotation: image.trimRotation,
uTrimScale: image.trimScale,
uTrimTransform: image.trimTransform,
uIsoLevel: image.isoLevel,
};
}
function createValuesSimple(image, props, colorValue, sizeValue, transform) {
const s = BaseGeometry.createSimple(colorValue, sizeValue, transform);
const p = { ...PD.getDefaultValues(Image.Params), ...props };
return createValues(image, s.transform, s.locationIterator, s.theme, p);
}
function updateValues(values, props) {
BaseGeometry.updateValues(values, props);
ValueCell.updateIfChanged(values.dInterpolation, props.interpolation);
}
function updateBoundingSphere(values, image) {
const invariantBoundingSphere = Sphere3D.clone(image.boundingSphere);
const boundingSphere = calculateTransformBoundingSphere(invariantBoundingSphere, values.aTransform.ref.value, values.instanceCount.ref.value, 0);
if (!Sphere3D.equals(boundingSphere, values.boundingSphere.ref.value)) {
ValueCell.update(values.boundingSphere, boundingSphere);
}
if (!Sphere3D.equals(invariantBoundingSphere, values.invariantBoundingSphere.ref.value)) {
ValueCell.update(values.invariantBoundingSphere, invariantBoundingSphere);
ValueCell.update(values.uInvariantBoundingSphere, Vec4.fromSphere(values.uInvariantBoundingSphere.ref.value, invariantBoundingSphere));
}
}
function createRenderableState(props) {
const state = BaseGeometry.createRenderableState(props);
state.opaque = false;
return state;
}
function updateRenderableState(state, props) {
BaseGeometry.updateRenderableState(state, props);
state.opaque = false;
}
})(Image || (Image = {}));
//
function getBoundingSphere(corners) {
const center = Vec3();
const extrema = [];
for (let i = 0, il = corners.length; i < il; i += 3) {
const e = Vec3.fromArray(Vec3(), corners, i);
extrema.push(e);
Vec3.add(center, center, e);
}
Vec3.scale(center, center, 1 / (corners.length / 3));
let radius = 0;
for (const e of extrema) {
const d = Vec3.distance(center, e);
if (d > radius)
radius = d;
}
const sphere = Sphere3D.create(center, radius);
Sphere3D.setExtrema(sphere, extrema);
return sphere;
}