molstar
Version:
A comprehensive macromolecular library.
67 lines • 3.27 kB
JavaScript
;
/**
* Copyright (c) 2019-2020 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.createEmptyTransparency = exports.createTransparency = exports.clearTransparency = exports.getTransparencyAverage = exports.applyTransparencyValue = void 0;
var value_cell_1 = require("../../mol-util/value-cell");
var linear_algebra_1 = require("../../mol-math/linear-algebra");
var util_1 = require("../../mol-gl/renderable/util");
function applyTransparencyValue(array, start, end, value) {
for (var i = start; i < end; ++i) {
array[i] = value * 255;
}
return true;
}
exports.applyTransparencyValue = applyTransparencyValue;
function getTransparencyAverage(array, count) {
var sum = 0;
for (var i = 0; i < count; ++i) {
sum += array[i];
}
return sum / (255 * count);
}
exports.getTransparencyAverage = getTransparencyAverage;
function clearTransparency(array, start, end) {
array.fill(0, start, end);
}
exports.clearTransparency = clearTransparency;
function createTransparency(count, transparencyData) {
var 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));
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),
};
}
}
exports.createTransparency = createTransparency;
var 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),
};
}
}
exports.createEmptyTransparency = createEmptyTransparency;
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