DataConverter¶

class visualife.core.DataConverter(plot, x_code, y_code)¶

Bases: object

Converts plot data values to screen coordinates values

Also stores x and y ranges for class Plot and has set_nice_range() method which provides automatic nice range for axes

Creates a DataConverter object

Parameters:	plot (`Plot`) – referance to plot to get axis to convert values x_code (`string`) – letter that defines a AxisX location y_code (`string`) – letter that defines a AxisY location

Attributes Summary

`max_x`	Returns maximum of X data in screen coordinates
`max_y`	Returns maximum of Y data in screen coordinates
`min_x`	Returns minimum of X data in screen coordinates
`min_y`	Returns minimum of Y data in screen coordinates
`plot`	Returns a reference to a `Plot` that this converter belongs to

Methods Summary

`convert_data`(x_data, y_data)	Converts x_data and y_data to screen coordinates
`set_min_and_max_data`(dataset)	Sets min and max for X and Y data of all this converter’s series in a `Plot`
`set_nice_range`([what])	Finds a nice tics ranges for `Plot` data

Attributes Documentation

max_x¶: Returns maximum of X data in screen coordinates

max_y¶: Returns maximum of Y data in screen coordinates

min_x¶: Returns minimum of X data in screen coordinates

min_y¶: Returns minimum of Y data in screen coordinates

plot¶: Returns a reference to a Plot that this converter belongs to

Methods Documentation

convert_data(x_data, y_data)¶

Converts x_data and y_data to screen coordinates

param x_data: x_data to convert

type x_data: list

param y_data: y_data to convert

type y_data: list

return: tuple like (x_screen_data,y_screen_data)

set_min_and_max_data(dataset)¶

Sets min and max for X and Y data of all this converter’s series in a Plot

This values is neccesary to set_nice_range() method.

set_nice_range(what='xy')¶

Finds a nice tics ranges for Plot data

Uses min and max data stored in self