in src/components/viewer.js [153:165]
updateMetrics() {
// Update progress bar
this.setState({
readyImagesProgress: this.readyImagesCount /
this.totalImagesCount * 100,
numReadyImages: this.readyImagesCount,
renderedImagesProgress: this.renderedImagesCount /
this.totalImagesCount * 100,
renderTimer: Date.now() - this.renderStartTime,
totalTimer: Date.now() - this.fetchStartTime,
numRenderedImages: this.renderedImagesCount,
});
}