molstar
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A comprehensive macromolecular library.
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JavaScript
/**
* Copyright (c) 2018-2020 mol* contributors, licensed under MIT, See LICENSE file for more info.
*
* @author Alexander Rose <alexander.rose@weirdbyte.de>
* @author David Sehnal <david.sehnal@gmail.com>
*/
import { __assign } from "tslib";
import { Unit, StructureElement, StructureProperties as Props } from '../mol-model/structure';
import { Loci } from '../mol-model/loci';
import { OrderedSet } from '../mol-data/int';
import { capitalize, stripTags } from '../mol-util/string';
import { Vec3 } from '../mol-math/linear-algebra';
import { radToDeg } from '../mol-math/misc';
import { Volume } from '../mol-model/volume';
export var DefaultLabelOptions = {
granularity: 'element',
condensed: false,
reverse: false,
countsOnly: false,
hidePrefix: false,
htmlStyling: true,
};
export function lociLabel(loci, options) {
if (options === void 0) { options = {}; }
switch (loci.kind) {
case 'structure-loci':
return loci.structure.models.map(function (m) { return m.entry; }).filter(function (l) { return !!l; }).join(', ');
case 'element-loci':
return structureElementStatsLabel(StructureElement.Stats.ofLoci(loci), options);
case 'bond-loci':
var bond = loci.bonds[0];
return bond ? bondLabel(bond) : '';
case 'shape-loci':
return loci.shape.name;
case 'group-loci':
var g = loci.groups[0];
return g ? loci.shape.getLabel(OrderedSet.start(g.ids), g.instance) : '';
case 'every-loci':
return 'Everything';
case 'empty-loci':
return 'Nothing';
case 'data-loci':
return loci.getLabel();
case 'volume-loci':
return loci.volume.label || 'Volume';
case 'isosurface-loci':
return [
"" + (loci.volume.label || 'Volume'),
"Isosurface at " + Volume.IsoValue.toString(loci.isoValue)
].join(' | ');
case 'cell-loci':
var size = OrderedSet.size(loci.indices);
var start = OrderedSet.start(loci.indices);
var absVal = Volume.IsoValue.absolute(loci.volume.grid.cells.data[start]);
var relVal = Volume.IsoValue.toRelative(absVal, loci.volume.grid.stats);
var label = [
"" + (loci.volume.label || 'Volume'),
"" + (size === 1 ? "Cell #" + start : size + " Cells")
];
if (size === 1) {
label.push(Volume.IsoValue.toString(absVal) + " (" + Volume.IsoValue.toString(relVal) + ")");
}
return label.join(' | ');
}
}
function countLabel(count, label) {
return count === 1 ? "1 " + label : count + " " + label + "s";
}
function otherLabel(count, location, granularity, hidePrefix, reverse, condensed) {
return elementLabel(location, { granularity: granularity, hidePrefix: hidePrefix, reverse: reverse, condensed: condensed }) + " <small>[+ " + countLabel(count - 1, "other " + capitalize(granularity)) + "]</small>";
}
/** Gets residue count of the model chain segments the unit is a subset of */
function getResidueCount(unit) {
var elements = unit.elements, model = unit.model;
var _a = model.atomicHierarchy, chainAtomSegments = _a.chainAtomSegments, residueAtomSegments = _a.residueAtomSegments;
var elementStart = chainAtomSegments.offsets[chainAtomSegments.index[elements[0]]];
var elementEnd = chainAtomSegments.offsets[chainAtomSegments.index[elements[elements.length - 1]] + 1] - 1;
return residueAtomSegments.index[elementEnd] - residueAtomSegments.index[elementStart] + 1;
}
export function structureElementStatsLabel(stats, options) {
if (options === void 0) { options = {}; }
var o = __assign(__assign({}, DefaultLabelOptions), options);
var label = _structureElementStatsLabel(stats, o.countsOnly, o.hidePrefix, o.condensed, o.reverse);
return o.htmlStyling ? label : stripTags(label);
}
function _structureElementStatsLabel(stats, countsOnly, hidePrefix, condensed, reverse) {
if (countsOnly === void 0) { countsOnly = false; }
if (hidePrefix === void 0) { hidePrefix = false; }
if (condensed === void 0) { condensed = false; }
if (reverse === void 0) { reverse = false; }
var structureCount = stats.structureCount, chainCount = stats.chainCount, residueCount = stats.residueCount, conformationCount = stats.conformationCount, elementCount = stats.elementCount;
if (!countsOnly && elementCount === 1 && residueCount === 0 && chainCount === 0) {
return elementLabel(stats.firstElementLoc, { hidePrefix: hidePrefix, condensed: condensed, granularity: 'element', reverse: reverse });
}
else if (!countsOnly && elementCount === 0 && residueCount === 1 && chainCount === 0) {
return elementLabel(stats.firstResidueLoc, { hidePrefix: hidePrefix, condensed: condensed, granularity: 'residue', reverse: reverse });
}
else if (!countsOnly && elementCount === 0 && residueCount === 0 && chainCount === 1) {
var unit = stats.firstChainLoc.unit;
var granularity = (Unit.isAtomic(unit) && getResidueCount(unit) === 1)
? 'residue' : Unit.Traits.is(unit.traits, 1 /* MultiChain */)
? 'residue' : 'chain';
return elementLabel(stats.firstChainLoc, { hidePrefix: hidePrefix, condensed: condensed, granularity: granularity, reverse: reverse });
}
else if (!countsOnly) {
var label = [];
if (structureCount > 0) {
label.push(structureCount === 1 ? elementLabel(stats.firstStructureLoc, { hidePrefix: hidePrefix, condensed: condensed, granularity: 'structure', reverse: reverse }) : otherLabel(structureCount, stats.firstStructureLoc, 'structure', hidePrefix, reverse, condensed));
}
if (chainCount > 0) {
label.push(chainCount === 1 ? elementLabel(stats.firstChainLoc, { condensed: condensed, granularity: 'chain', hidePrefix: hidePrefix, reverse: reverse }) : otherLabel(chainCount, stats.firstChainLoc, 'chain', hidePrefix, reverse, condensed));
hidePrefix = true;
}
if (residueCount > 0) {
label.push(residueCount === 1 ? elementLabel(stats.firstResidueLoc, { condensed: condensed, granularity: 'residue', hidePrefix: hidePrefix, reverse: reverse }) : otherLabel(residueCount, stats.firstResidueLoc, 'residue', hidePrefix, reverse, condensed));
hidePrefix = true;
}
if (conformationCount > 0) {
label.push(conformationCount === 1 ? elementLabel(stats.firstConformationLoc, { condensed: condensed, granularity: 'conformation', hidePrefix: hidePrefix, reverse: reverse }) : otherLabel(conformationCount, stats.firstConformationLoc, 'conformation', hidePrefix, reverse, condensed));
hidePrefix = true;
}
if (elementCount > 0) {
label.push(elementCount === 1 ? elementLabel(stats.firstElementLoc, { condensed: condensed, granularity: 'element', hidePrefix: hidePrefix, reverse: reverse }) : otherLabel(elementCount, stats.firstElementLoc, 'element', hidePrefix, reverse, condensed));
}
return label.join('<small> + </small>');
}
else {
var label = [];
if (structureCount > 0)
label.push(countLabel(structureCount, 'Structure'));
if (chainCount > 0)
label.push(countLabel(chainCount, 'Chain'));
if (residueCount > 0)
label.push(countLabel(residueCount, 'Residue'));
if (conformationCount > 0)
label.push(countLabel(conformationCount, 'Conformation'));
if (elementCount > 0)
label.push(countLabel(elementCount, 'Element'));
return label.join('<small> + </small>');
}
}
export function bondLabel(bond, options) {
if (options === void 0) { options = {}; }
return bundleLabel({ loci: [
StructureElement.Loci(bond.aStructure, [{ unit: bond.aUnit, indices: OrderedSet.ofSingleton(bond.aIndex) }]),
StructureElement.Loci(bond.bStructure, [{ unit: bond.bUnit, indices: OrderedSet.ofSingleton(bond.bIndex) }])
] }, options);
}
export function bundleLabel(bundle, options) {
if (options === void 0) { options = {}; }
var o = __assign(__assign({}, DefaultLabelOptions), options);
var label = _bundleLabel(bundle, o);
return o.htmlStyling ? label : stripTags(label);
}
export function _bundleLabel(bundle, options) {
var granularity = options.granularity, hidePrefix = options.hidePrefix, reverse = options.reverse, condensed = options.condensed;
var isSingleElements = true;
for (var _i = 0, _a = bundle.loci; _i < _a.length; _i++) {
var l = _a[_i];
if (!StructureElement.Loci.is(l) || StructureElement.Loci.size(l) !== 1) {
isSingleElements = false;
break;
}
}
if (isSingleElements) {
var locations = bundle.loci.map(function (l) {
var _a = l.elements[0], unit = _a.unit, indices = _a.indices;
return StructureElement.Location.create(l.structure, unit, unit.elements[OrderedSet.start(indices)]);
});
var labels = locations.map(function (l) { return _elementLabel(l, granularity, hidePrefix, reverse || condensed); });
if (condensed) {
return labels.map(function (l) { return l[0].replace(/\[.*\]/g, '').trim(); }).filter(function (l) { return !!l; }).join(' \u2014 ');
}
var offset = 0;
for (var i = 0, il = Math.min.apply(Math, labels.map(function (l) { return l.length; })) - 1; i < il; ++i) {
var areIdentical = true;
for (var j = 1, jl = labels.length; j < jl; ++j) {
if (labels[0][i] !== labels[j][i]) {
areIdentical = false;
break;
}
}
if (areIdentical)
offset += 1;
else
break;
}
if (offset > 0) {
var offsetLabels = [labels[0].join(' | ')];
for (var j = 1, jl = labels.length; j < jl; ++j) {
offsetLabels.push(labels[j].slice(offset).filter(function (l) { return !!l; }).join(' | '));
}
return offsetLabels.join(' \u2014 ');
}
else {
return labels.map(function (l) { return l.filter(function (l) { return !!l; }).join(' | '); }).filter(function (l) { return !!l; }).join('</br>');
}
}
else {
var labels = bundle.loci.map(function (l) { return lociLabel(l, options); });
return labels.filter(function (l) { return !!l; }).join(condensed ? ' \u2014 ' : '</br>');
}
}
export function elementLabel(location, options) {
var _a, _b;
if (options === void 0) { options = {}; }
var o = __assign(__assign({}, DefaultLabelOptions), options);
var _label = _elementLabel(location, o.granularity, o.hidePrefix, o.reverse || o.condensed);
// TODO: condensed label for single atom structure returns empty label.. handle this case here?
var label = o.condensed ? (_b = (_a = _label[0]) === null || _a === void 0 ? void 0 : _a.replace(/\[.*\]/g, '').trim()) !== null && _b !== void 0 ? _b : '' : _label.filter(function (l) { return !!l; }).join(' | ');
return o.htmlStyling ? label : stripTags(label);
}
function _elementLabel(location, granularity, hidePrefix, reverse) {
if (granularity === void 0) { granularity = 'element'; }
if (hidePrefix === void 0) { hidePrefix = false; }
if (reverse === void 0) { reverse = false; }
var label = [];
if (!hidePrefix) {
var entry = location.unit.model.entry;
if (entry.length > 30)
entry = entry.substr(0, 27) + '\u2026'; // ellipsis
label.push("<small>" + entry + "</small>"); // entry
if (granularity !== 'structure') {
label.push("<small>Model " + location.unit.model.modelNum + "</small>"); // model
label.push("<small>Instance " + location.unit.conformation.operator.name + "</small>"); // instance
}
}
if (Unit.isAtomic(location.unit)) {
label.push.apply(label, _atomicElementLabel(location, granularity, reverse));
}
else if (Unit.isCoarse(location.unit)) {
label.push.apply(label, _coarseElementLabel(location, granularity));
}
else {
label.push('Unknown');
}
return reverse ? label.reverse() : label;
}
function _atomicElementLabel(location, granularity, hideOccupancy) {
if (hideOccupancy === void 0) { hideOccupancy = false; }
var rI = StructureElement.Location.residueIndex(location);
var label_asym_id = Props.chain.label_asym_id(location);
var auth_asym_id = Props.chain.auth_asym_id(location);
var has_label_seq_id = location.unit.model.atomicHierarchy.residues.label_seq_id.valueKind(rI) === 0 /* Present */;
var label_seq_id = Props.residue.label_seq_id(location);
var auth_seq_id = Props.residue.auth_seq_id(location);
var ins_code = Props.residue.pdbx_PDB_ins_code(location);
var comp_id = Props.atom.label_comp_id(location);
var atom_id = Props.atom.label_atom_id(location);
var alt_id = Props.atom.label_alt_id(location);
var occupancy = Props.atom.occupancy(location);
var microHetCompIds = Props.residue.microheterogeneityCompIds(location);
var compId = granularity === 'residue' && microHetCompIds.length > 1 ?
"(" + microHetCompIds.join('|') + ")" : comp_id;
var label = [];
switch (granularity) {
case 'element':
label.push("<b>" + atom_id + "</b>" + (alt_id ? "%" + alt_id : ''));
case 'conformation':
if (granularity === 'conformation' && alt_id) {
label.push("<small>Conformation</small> <b>" + alt_id + "</b>");
}
case 'residue':
var seq_id = label_seq_id === auth_seq_id || !has_label_seq_id ? auth_seq_id : label_seq_id;
label.push("<b>" + compId + " " + seq_id + "</b>" + (seq_id !== auth_seq_id ? " <small>[auth</small> <b>" + auth_seq_id + "</b><small>]</small>" : '') + "<b>" + (ins_code ? ins_code : '') + "</b>");
case 'chain':
if (label_asym_id === auth_asym_id) {
label.push("<b>" + label_asym_id + "</b>");
}
else {
if (granularity === 'chain' && Unit.Traits.is(location.unit.traits, 1 /* MultiChain */)) {
label.push("<small>[auth</small> <b>" + auth_asym_id + "</b><small>]</small>");
}
else {
label.push("<b>" + label_asym_id + "</b> <small>[auth</small> <b>" + auth_asym_id + "</b><small>]</small>");
}
}
}
if (label.length > 0 && occupancy !== 1 && !hideOccupancy) {
label[0] = label[0] + " <small>[occupancy</small> <b>" + Math.round(100 * occupancy) / 100 + "</b><small>]</small>";
}
return label.reverse();
}
function _coarseElementLabel(location, granularity) {
var asym_id = Props.coarse.asym_id(location);
var seq_id_begin = Props.coarse.seq_id_begin(location);
var seq_id_end = Props.coarse.seq_id_end(location);
var label = [];
switch (granularity) {
case 'element':
case 'conformation':
case 'residue':
if (seq_id_begin === seq_id_end) {
var entityIndex = Props.coarse.entityKey(location);
var seq = location.unit.model.sequence.byEntityKey[entityIndex];
var comp_id = seq.sequence.compId.value(seq_id_begin - 1); // 1-indexed
label.push("<b>" + comp_id + " " + seq_id_begin + "</b>");
}
else {
label.push("<b>" + seq_id_begin + "-" + seq_id_end + "</b>");
}
case 'chain':
label.push("<b>" + asym_id + "</b>");
}
return label.reverse();
}
//
export function distanceLabel(pair, options) {
if (options === void 0) { options = {}; }
var o = __assign(__assign(__assign({}, DefaultLabelOptions), { measureOnly: false, unitLabel: '\u212B' }), options);
var _a = pair.loci.map(function (l) { return Loci.getCenter(l); }), cA = _a[0], cB = _a[1];
var distance = Vec3.distance(cA, cB).toFixed(2) + " " + o.unitLabel;
if (o.measureOnly)
return distance;
var label = bundleLabel(pair, o);
return o.condensed ? distance + " | " + label : "Distance " + distance + "</br>" + label;
}
export function angleLabel(triple, options) {
if (options === void 0) { options = {}; }
var o = __assign(__assign(__assign({}, DefaultLabelOptions), { measureOnly: false }), options);
var _a = triple.loci.map(function (l) { return Loci.getCenter(l); }), cA = _a[0], cB = _a[1], cC = _a[2];
var vAB = Vec3.sub(Vec3(), cA, cB);
var vCB = Vec3.sub(Vec3(), cC, cB);
var angle = radToDeg(Vec3.angle(vAB, vCB)).toFixed(2) + "\u00B0";
if (o.measureOnly)
return angle;
var label = bundleLabel(triple, o);
return o.condensed ? angle + " | " + label : "Angle " + angle + "</br>" + label;
}
export function dihedralLabel(quad, options) {
if (options === void 0) { options = {}; }
var o = __assign(__assign(__assign({}, DefaultLabelOptions), { measureOnly: false }), options);
var _a = quad.loci.map(function (l) { return Loci.getCenter(l); }), cA = _a[0], cB = _a[1], cC = _a[2], cD = _a[3];
var dihedral = radToDeg(Vec3.dihedralAngle(cA, cB, cC, cD)).toFixed(2) + "\u00B0";
if (o.measureOnly)
return dihedral;
var label = bundleLabel(quad, o);
return o.condensed ? dihedral + " | " + label : "Dihedral " + dihedral + "</br>" + label;
}
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