client/src/models/TxMondrianPoolScene.js
// handle mouse-over events - return the tx at this mouse position, if any
handle mouse-over events - return the tx at this mouse position, if any
handle mouse - over events - return the tx at this mouse position if any
selectAt (position) {
    if (this.layout) {
      const gridPosition = this.screenToGrid(position)
      return this.layout.getTxInGridCell(gridPosition)
    } else return null
  }
selectAt ( position ) { if ( this . layout ) { const gridPosition = this . screenToGrid ( position ) return this . layout . getTxInGridCell ( gridPosition ) } else return null }
handle mouse-over events - return the tx at this mouse position, if any
handle mouse - over events - return the tx at this mouse position if any