molstar
Version:
A comprehensive macromolecular library.
213 lines • 9.89 kB
JavaScript
/**
* Copyright (c) 2020-2021 mol* contributors, licensed under MIT, See LICENSE file for more info.
*
* @author Alexander Rose <alexander.rose@weirdbyte.de>
*/
import { __assign } from "tslib";
import produce from 'immer';
import { Interval } from '../../mol-data/int/interval';
import { addCylinder } from '../../mol-geo/geometry/mesh/builder/cylinder';
import { addSphere } from '../../mol-geo/geometry/mesh/builder/sphere';
import { Mesh } from '../../mol-geo/geometry/mesh/mesh';
import { MeshBuilder } from '../../mol-geo/geometry/mesh/mesh-builder';
import { Scene } from '../../mol-gl/scene';
import { Sphere3D } from '../../mol-math/geometry';
import { Mat4, Vec3 } from '../../mol-math/linear-algebra';
import { DataLoci, EmptyLoci } from '../../mol-model/loci';
import { Shape } from '../../mol-model/shape';
import { Visual } from '../../mol-repr/visual';
import { ColorNames } from '../../mol-util/color/names';
import { MarkerActions } from '../../mol-util/marker-action';
import { ParamDefinition as PD } from '../../mol-util/param-definition';
import { Camera } from '../camera';
// TODO add scale line/grid
var AxesParams = __assign(__assign({}, Mesh.Params), { alpha: __assign(__assign({}, Mesh.Params.alpha), { defaultValue: 0.51 }), ignoreLight: __assign(__assign({}, Mesh.Params.ignoreLight), { defaultValue: true }), colorX: PD.Color(ColorNames.red, { isEssential: true }), colorY: PD.Color(ColorNames.green, { isEssential: true }), colorZ: PD.Color(ColorNames.blue, { isEssential: true }), scale: PD.Numeric(0.33, { min: 0.1, max: 2, step: 0.1 }, { isEssential: true }) });
export var CameraHelperParams = {
axes: PD.MappedStatic('on', {
on: PD.Group(AxesParams),
off: PD.Group({})
}, { cycle: true, description: 'Show camera orientation axes' }),
};
var CameraHelper = /** @class */ (function () {
function CameraHelper(webgl, props) {
var _this = this;
if (props === void 0) { props = {}; }
this.webgl = webgl;
this.props = {
axes: { name: 'off', params: {} }
};
this.eachGroup = function (loci, apply) {
if (!_this.renderObject)
return false;
if (!isCameraAxesLoci(loci))
return false;
var changed = false;
var groupCount = _this.renderObject.values.uGroupCount.ref.value;
var elements = loci.elements;
for (var _i = 0, elements_1 = elements; _i < elements_1.length; _i++) {
var _a = elements_1[_i], groupId = _a.groupId, instanceId = _a.instanceId;
var idx = instanceId * groupCount + groupId;
if (apply(Interval.ofSingleton(idx)))
changed = true;
}
return changed;
};
this.scene = Scene.create(webgl);
this.camera = new Camera();
Vec3.set(this.camera.up, 0, 1, 0);
Vec3.set(this.camera.target, 0, 0, 0);
this.setProps(props);
}
CameraHelper.prototype.setProps = function (props) {
var _this = this;
this.props = produce(this.props, function (p) {
if (props.axes !== undefined) {
p.axes.name = props.axes.name;
if (props.axes.name === 'on') {
_this.scene.clear();
var params = __assign(__assign({}, props.axes.params), { scale: props.axes.params.scale * _this.webgl.pixelRatio });
_this.renderObject = createAxesRenderObject(params);
_this.renderObject.state.noClip = true;
_this.scene.add(_this.renderObject);
_this.scene.commit();
Vec3.set(_this.camera.position, 0, 0, params.scale * 200);
Mat4.lookAt(_this.camera.view, _this.camera.position, _this.camera.target, _this.camera.up);
p.axes.params = __assign({}, props.axes.params);
}
}
});
};
Object.defineProperty(CameraHelper.prototype, "isEnabled", {
get: function () {
return this.props.axes.name === 'on';
},
enumerable: false,
configurable: true
});
CameraHelper.prototype.getLoci = function (pickingId) {
var objectId = pickingId.objectId, groupId = pickingId.groupId, instanceId = pickingId.instanceId;
if (!this.renderObject || objectId !== this.renderObject.id || groupId === 0 /* None */)
return EmptyLoci;
return CameraAxesLoci(this, groupId, instanceId);
};
CameraHelper.prototype.mark = function (loci, action) {
if (!MarkerActions.is(MarkerActions.Highlighting, action))
return false;
if (!isCameraAxesLoci(loci))
return false;
if (loci.data !== this)
return false;
return Visual.mark(this.renderObject, loci, action, this.eachGroup);
};
CameraHelper.prototype.update = function (camera) {
if (!this.renderObject)
return;
updateCamera(this.camera, camera.viewport, camera.viewOffset);
Mat4.extractRotation(this.scene.view, camera.view);
var r = this.renderObject.values.boundingSphere.ref.value.radius;
Mat4.setTranslation(this.scene.view, Vec3.create(-camera.viewport.width / 2 + r, -camera.viewport.height / 2 + r, 0));
};
return CameraHelper;
}());
export { CameraHelper };
function getAxisLabel(axis) {
switch (axis) {
case 1 /* X */: return 'X Axis';
case 2 /* Y */: return 'Y Axis';
case 3 /* Z */: return 'Z Axis';
case 4 /* XY */: return 'XY Plane';
case 5 /* XZ */: return 'XZ Plane';
case 6 /* YZ */: return 'YZ Plane';
default: return 'Axes';
}
}
function CameraAxesLoci(cameraHelper, groupId, instanceId) {
return DataLoci('camera-axes', cameraHelper, [{ groupId: groupId, instanceId: instanceId }], void 0 /** bounding sphere */, function () { return getAxisLabel(groupId); });
}
export function isCameraAxesLoci(x) {
return x.kind === 'data-loci' && x.tag === 'camera-axes';
}
function updateCamera(camera, viewport, viewOffset) {
var near = camera.near, far = camera.far;
var fullLeft = -viewport.width / 2;
var fullRight = viewport.width / 2;
var fullTop = viewport.height / 2;
var fullBottom = -viewport.height / 2;
var dx = (fullRight - fullLeft) / 2;
var dy = (fullTop - fullBottom) / 2;
var cx = (fullRight + fullLeft) / 2;
var cy = (fullTop + fullBottom) / 2;
var left = cx - dx;
var right = cx + dx;
var top = cy + dy;
var bottom = cy - dy;
if (viewOffset.enabled) {
var scaleW = (fullRight - fullLeft) / viewOffset.width;
var scaleH = (fullTop - fullBottom) / viewOffset.height;
left += scaleW * viewOffset.offsetX;
right = left + scaleW * viewOffset.width;
top -= scaleH * viewOffset.offsetY;
bottom = top - scaleH * viewOffset.height;
}
Mat4.ortho(camera.projection, left, right, top, bottom, near, far);
}
function createAxesMesh(scale, mesh) {
var state = MeshBuilder.createState(512, 256, mesh);
var radius = 0.075 * scale;
var x = Vec3.scale(Vec3(), Vec3.unitX, scale);
var y = Vec3.scale(Vec3(), Vec3.unitY, scale);
var z = Vec3.scale(Vec3(), Vec3.unitZ, scale);
var cylinderProps = { radiusTop: radius, radiusBottom: radius, radialSegments: 32 };
state.currentGroup = 0 /* None */;
addSphere(state, Vec3.origin, radius, 2);
state.currentGroup = 1 /* X */;
addSphere(state, x, radius, 2);
addCylinder(state, Vec3.origin, x, 1, cylinderProps);
state.currentGroup = 2 /* Y */;
addSphere(state, y, radius, 2);
addCylinder(state, Vec3.origin, y, 1, cylinderProps);
state.currentGroup = 3 /* Z */;
addSphere(state, z, radius, 2);
addCylinder(state, Vec3.origin, z, 1, cylinderProps);
Vec3.scale(x, x, 0.5);
Vec3.scale(y, y, 0.5);
Vec3.scale(z, z, 0.5);
state.currentGroup = 4 /* XY */;
MeshBuilder.addTriangle(state, Vec3.origin, x, y);
MeshBuilder.addTriangle(state, Vec3.origin, y, x);
var xy = Vec3.add(Vec3(), x, y);
MeshBuilder.addTriangle(state, xy, x, y);
MeshBuilder.addTriangle(state, xy, y, x);
state.currentGroup = 5 /* XZ */;
MeshBuilder.addTriangle(state, Vec3.origin, x, z);
MeshBuilder.addTriangle(state, Vec3.origin, z, x);
var xz = Vec3.add(Vec3(), x, z);
MeshBuilder.addTriangle(state, xz, x, z);
MeshBuilder.addTriangle(state, xz, z, x);
state.currentGroup = 6 /* YZ */;
MeshBuilder.addTriangle(state, Vec3.origin, y, z);
MeshBuilder.addTriangle(state, Vec3.origin, z, y);
var yz = Vec3.add(Vec3(), y, z);
MeshBuilder.addTriangle(state, yz, y, z);
MeshBuilder.addTriangle(state, yz, z, y);
return MeshBuilder.getMesh(state);
}
function getAxesShape(props, shape) {
var scale = 100 * props.scale;
var mesh = createAxesMesh(scale, shape === null || shape === void 0 ? void 0 : shape.geometry);
mesh.setBoundingSphere(Sphere3D.create(Vec3.create(scale / 2, scale / 2, scale / 2), scale + scale / 4));
var getColor = function (groupId) {
switch (groupId) {
case 1: return props.colorX;
case 2: return props.colorY;
case 3: return props.colorZ;
default: return ColorNames.grey;
}
};
return Shape.create('axes', {}, mesh, getColor, function () { return 1; }, function () { return ''; });
}
function createAxesRenderObject(props) {
var shape = getAxesShape(props);
return Shape.createRenderObject(shape, props);
}
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