andredumas
commented
9 years ago Hi @GodRtio
Initially this library started out to be like that, a higher financial abstraction layer, but it's morphed into something different. I'm noticing adding indicators could and probably should be easier.
Regardless of above, techanjs is designed to be non intrusive. Those functions you require (line, rectangle, symbol) are already already in core d3 and is what techanjs fundamentally uses to do it's job. See here or here. There is nothing stopping you from building a basic financial chart using techanjs, then using d3 directly for custom code, you could literally create a few d3 line objects to do what you require.
andre
GodRtio
Hi @andredumas,
I think it would be great if user can write his own indicator in javascript or coffee-script on the fly or save it to use later.
For example: A simple fractal indicator: if(data[i].high > data[i-1].high && data[i].high > data[i-2].high && data[i].high > data[i+1].high && data[i].high > data[i+2].high){ draw_symbol("fractal up" + i, i, fractalUpCode, color) } else if(data[i].low < data[i-1].low && data[i].low < data[i-2].low && data[i].low < data[i+1].low && data[i].low < data[i+2].low ){ draw_symbol("fractal down" + i, i, fractalDownCode, color) }
Basically, we need a framework to draw something, like: draw_line(id of line, position, type=trend|vertical|horizontal, style=solid|dash|dot, color) draw_circle(...) draw_rectangle(...) draw_symbol(...)
And a way to manipulate data that have basic function like access to any position of data to do calculation min, max function ....
I don't know if it easy to write, but if you need any help, i can work with you. Currently, i still read your code to understand the logic behind it.
Merry Christmas, @andredumas
GodRtio