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Re: Charting
Fabrice Gras wrote:
> TradeLab seems to be a great product with good charting
> capabilities. It seems that TradeLab uses Olectra Chart
> plotting package.
TradeLab does not use Olectra Chart for price charting and trading indicator
plotting. We evaluated Olectra Chart early in the project and found it
unsuitable. There were fundamental design flaws that could not be overcome.
The speed performance was very poor, because plots are redrawn in memory
several times with each change. There were serious date and time scaling
problems. Only four indicators could be plotted on price charts. Each
chart used a huge amount of memory. The MSVC MFC interface was almost
totally undocumented. Their technical support personnel knew less about
many aspects of the product than we did. They couldn't even understand many
of the questions, let alone provide answers.
Olectra Chart is easy to use in simple applications. It would be suitable
for some applications, but it is not suitable for a product like TradeLab
and it is not suitable for market price charting generally. TradeLab's
price charting and indicator plotting capabilities go far beyond what it is
capable of.
We wrote our own price charting and indicator plotting module. It is highly
adaptable. We can configure it to produce charts that look identical to
charts produced by Olectra Chart, TradeStation, or any other charting
product, but the code is ours.
--
-Doretta Smith
Scientific Approaches
doretta@xxxxxxxxxx
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