message: support ignoreHydrogens & traceOnly for points visual
diff: /**
  - * Copyright (c) 2018 mol* contributors, licensed under MIT, See LICENSE file for more info.
  + * Copyright (c) 2018-2020 mol* contributors, licensed under MIT, See LICENSE file for more info.
  *
  * @author Alexander Rose <alexander.rose@weirdbyte.de>
  */
  @@ -15,19 +15,21 @@ import { Vec3 } from '../../../mol-math/linear-algebra';
  import { ElementIterator, getElementLoci, eachElement } from './util/element';
  import { VisualUpdateState } from '../../util';
  import { Sphere3D } from '../../../mol-math/geometry';
  +import { isTrace, isHydrogen } from './util/common';
  export const ElementPointParams = {
  ...UnitsPointsParams,
  // sizeFactor: PD.Numeric(1.0, { min: 0, max: 10, step: 0.01 }),
  pointSizeAttenuation: PD.Boolean(false),
  - showHydrogens: PD.Boolean(true),
  + ignoreHydrogens: PD.Boolean(false),
  + traceOnly: PD.Boolean(false),
  };
  export type ElementPointParams = typeof ElementPointParams
  // TODO size
  export function createElementPoint(ctx: VisualContext, unit: Unit, structure: Structure, theme: Theme, props: PD.Values<ElementPointParams>, points: Points) {
  - // const { sizeFactor } = props
  + const { ignoreHydrogens, traceOnly } = props; // TODO sizeFactor
  const elements = unit.elements;
  const n = elements.length;
  @@ -37,6 +39,9 @@ export function createElementPoint(ctx: VisualContext, unit: Unit, structure: St
  const p = Vec3.zero();
  for (let i = 0; i < n; ++i) {
  + if (ignoreHydrogens && isHydrogen(unit, elements[i])) continue;
  + if (traceOnly && !isTrace(unit, elements[i])) continue;
  +
  pos(elements[i], p);
  builder.add(p[0], p[1], p[2], i);
  }
  @@ -57,7 +62,10 @@ export function ElementPointVisual(materialId: number): UnitsVisual<ElementPoint
  getLoci: getElementLoci,
  eachLocation: eachElement,
  setUpdateState: (state: VisualUpdateState, newProps: PD.Values<ElementPointParams>, currentProps: PD.Values<ElementPointParams>) => {
  -
  + state.createGeometry = (
  + newProps.ignoreHydrogens !== currentProps.ignoreHydrogens ||
  + newProps.traceOnly !== currentProps.traceOnly
  + );
  }
  }, materialId);
  }
  \ No newline at end of file
  