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Mailing lists / lazarus / 2011-03

Stock Charting with Lazarus

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Alexander Klenin
to Leonardo M. Ramé
Leonardo M. Ram? wrote 6 lines
Hi, does anyone know how can I draw an Open, High, Low, Close chart (for stock charting) with Lazarus/TChart?. An example of what I need: http://download.oracle.com/docs/html/A96127_01/img/stock_ohlc.gif

I have implemented TOpenHighLowCloseSeries based on the Wikipedia description:
http://en.wikipedia.org/wiki/Open-high-low-close_chart See "OHLC" page in the multidemo since r29890.

Please test.

Also, the wikipedia entry indicates that lines might have different color based on the upward/downward proce movement.
Do you need this feature?

Alexander S. Klenin

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Leonardo M. Ramé
to Alexander Klenin
Alexander Klenin wrote 22 lines
On Wed, Mar 16, 2011 at 06:27, Leonardo M. Ram? wrote: > Hi, does anyone know how can I draw an Open, High, Low, Close chart (for > stock charting) with Lazarus/TChart?. > > An example of what I need: > http://download.oracle.com/docs/html/A96127_01/img/stock_ohlc.gif > I have implemented TOpenHighLowCloseSeries based on the Wikipedia description: http://en.wikipedia.org/wiki/Open-high-low-close_chart See "OHLC" page in the multidemo since r29890. Please test. Also, the wikipedia entry indicates that lines might have different color based on the upward/downward proce movement. Do you need this feature? -- Alexander S. Klenin

Excelent!, Brilliant!, Impressive!. Thank you very much for this, that's exactly what I was looking for.

Regarding the color of upward/downward movement it's not mandatory to have this feature. I you want, you could implement it as an option, but not for the default chart.

Thank you again.

Leonardo M. Ram? http://leonardorame.blogspot.com

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