To build Range - bars with high precision PTMC using tick history of the instrument. These data have a large volume, so for reduce the download time and provide high performance we limited the maximum period of display Range - bars. However, we have certain ideas for improving the the charts: caching history and "loading on the fly." We plan to study them in detail shortly.
PTMC is a professional trading platform that combines all the best charting and analytical tools to trade on different financial markets. It is developed by PFSOFT UK LTD, a global provider of trading technology for banks & brokers