rebuild()

in packages/miew/src/ComplexVisual.js [587:645]

• 47 lines of code
• 13 McCabe index (conditional complexity)

  rebuild() {
    const self = this;

    // Destroy current geometry
    gfxutils.clearTree(this);

    return new Promise(((resolve) => {
      // Nothing to do?
      const complex = self._complex;
      if (!complex) {
        resolve();
        return;
      }

      let errorOccured = false;
      setTimeout(() => {
        console.time('build');
        const reprList = self._reprList;
        const palette = palettes.get(settings.now.palette) || palettes.first;
        let hasGeometry = false;
        for (let i = 0, n = reprList.length; i < n; ++i) {
          const repr = reprList[i];
          repr.colorer.palette = palette;

          if (repr.needsRebuild) {
            repr.reset();

            try {
              repr.buildGeometry(complex);
            } catch (e) {
              if (e instanceof utils.OutOfMemoryError) {
                repr.needsRebuild = false;
                repr.reset();
                logger.error(`Not enough memory to build geometry for representation ${repr.index + 1}`);
                errorOccured = true;
              } else {
                throw e;
              }
            }

            if (DEBUG && !errorOccured) {
              logger.debug(`Triangles count: ${meshutils.countTriangles(repr.geo)}`);
            }
          }

          hasGeometry = errorOccured || hasGeometry || gfxutils.groupHasGeometryToRender(repr.geo);

          if (repr.geo) {
            self.add(repr.geo);
          }
        }

        self._reprListChanged = false;

        console.timeEnd('build');
        resolve();
      }, 10);
    }));
  }