molstar
Version:
A comprehensive macromolecular library.
95 lines (94 loc) • 4.74 kB
JavaScript
;
/**
* Copyright (c) 2019-2024 mol* contributors, licensed under MIT, See LICENSE file for more info.
*
* @author Alexander Rose <alexander.rose@weirdbyte.de>
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.applyTransparencyValue = applyTransparencyValue;
exports.getTransparencyAverage = getTransparencyAverage;
exports.getTransparencyMin = getTransparencyMin;
exports.clearTransparency = clearTransparency;
exports.createTransparency = createTransparency;
exports.createEmptyTransparency = createEmptyTransparency;
const value_cell_1 = require("../../mol-util/value-cell");
const linear_algebra_1 = require("../../mol-math/linear-algebra");
const util_1 = require("../../mol-gl/renderable/util");
const texture_1 = require("../../mol-gl/webgl/texture");
function applyTransparencyValue(array, start, end, value) {
for (let i = start; i < end; ++i) {
array[i] = value * 255;
}
return true;
}
function getTransparencyAverage(array, count) {
if (count === 0 || array.length < count)
return 0;
let sum = 0;
for (let i = 0; i < count; ++i) {
sum += array[i];
}
return sum / (255 * count);
}
/** exclude fully opaque parts */
function getTransparencyMin(array, count) {
if (count === 0 || array.length < count)
return 1;
let min = 255;
for (let i = 0; i < count; ++i) {
if (array[i] > 0 && array[i] < min)
min = array[i];
}
return min / 255;
}
function clearTransparency(array, start, end) {
array.fill(0, start, end);
}
function createTransparency(count, type, transparencyData) {
const transparency = (0, util_1.createTextureImage)(Math.max(1, count), 1, Uint8Array, transparencyData && transparencyData.tTransparency.ref.value.array);
if (transparencyData) {
value_cell_1.ValueCell.update(transparencyData.tTransparency, transparency);
value_cell_1.ValueCell.update(transparencyData.uTransparencyTexDim, linear_algebra_1.Vec2.create(transparency.width, transparency.height));
value_cell_1.ValueCell.updateIfChanged(transparencyData.dTransparency, count > 0);
value_cell_1.ValueCell.updateIfChanged(transparencyData.transparencyAverage, getTransparencyAverage(transparency.array, count));
value_cell_1.ValueCell.updateIfChanged(transparencyData.transparencyMin, getTransparencyMin(transparency.array, count));
value_cell_1.ValueCell.updateIfChanged(transparencyData.dTransparencyType, type);
return transparencyData;
}
else {
return {
tTransparency: value_cell_1.ValueCell.create(transparency),
uTransparencyTexDim: value_cell_1.ValueCell.create(linear_algebra_1.Vec2.create(transparency.width, transparency.height)),
dTransparency: value_cell_1.ValueCell.create(count > 0),
transparencyAverage: value_cell_1.ValueCell.create(0),
transparencyMin: value_cell_1.ValueCell.create(1),
tTransparencyGrid: value_cell_1.ValueCell.create((0, texture_1.createNullTexture)()),
uTransparencyGridDim: value_cell_1.ValueCell.create(linear_algebra_1.Vec3.create(1, 1, 1)),
uTransparencyGridTransform: value_cell_1.ValueCell.create(linear_algebra_1.Vec4.create(0, 0, 0, 1)),
dTransparencyType: value_cell_1.ValueCell.create(type),
uTransparencyStrength: value_cell_1.ValueCell.create(1),
};
}
}
const emptyTransparencyTexture = { array: new Uint8Array(1), width: 1, height: 1 };
function createEmptyTransparency(transparencyData) {
if (transparencyData) {
value_cell_1.ValueCell.update(transparencyData.tTransparency, emptyTransparencyTexture);
value_cell_1.ValueCell.update(transparencyData.uTransparencyTexDim, linear_algebra_1.Vec2.create(1, 1));
return transparencyData;
}
else {
return {
tTransparency: value_cell_1.ValueCell.create(emptyTransparencyTexture),
uTransparencyTexDim: value_cell_1.ValueCell.create(linear_algebra_1.Vec2.create(1, 1)),
dTransparency: value_cell_1.ValueCell.create(false),
transparencyAverage: value_cell_1.ValueCell.create(0),
transparencyMin: value_cell_1.ValueCell.create(1),
tTransparencyGrid: value_cell_1.ValueCell.create((0, texture_1.createNullTexture)()),
uTransparencyGridDim: value_cell_1.ValueCell.create(linear_algebra_1.Vec3.create(1, 1, 1)),
uTransparencyGridTransform: value_cell_1.ValueCell.create(linear_algebra_1.Vec4.create(0, 0, 0, 1)),
dTransparencyType: value_cell_1.ValueCell.create('groupInstance'),
uTransparencyStrength: value_cell_1.ValueCell.create(1),
};
}
}