aplotter is a Python module for drawing graphs in pure ASCII format. This allows graphs to be included in doc strings (Python programs) or as illustrations in programs in any computer language.
The module offers a function
where x and y are sequences of x and y data for a curve. Axes are automatically calculated from the x and y data if not min_x, max_x, min_y or max_y are given.
Multiple curves in the plot is not supported.
Here are examples on various plot commands:
>>> from scitools.aplotter import plot
>>> from numpy import linspace, exp, cos, pi
>>> x = linspace(-2, 2, 81)
>>> y = exp(-0.5*x**2)*cos(pi*x)
>>> plot(x, y)
|
-+1
// |\
/ | \
/ | \
/ | \
/ | \
/ | \
/ | \
/ | \
-------\ / | \ -------*
---+-------\-----------------/---------+--------\-----------------//-------+---
-2 \ / | \ / +2
\ / | \ //
\ / | \ /
\ / | \ //
\ / | \ /
\ // | \- //
---- -0.63 ---/
|
>>>
>>> plot(x, y, draw_axes=False)
-+1//
/
/
/ /
/
/
/
——- / ——-* + / // + -2 / / +2
- / //
- / /
- / //
- / /
- // - //
- —- -0.63 —/
>>>
>>> # plot symbols (the dot argument) at data points:
>>> plot(x, y, plot_slope=False)
|
*+1
** |**
* | *
* | *
|
* | *
* | *
* | *
|
******** * | * ********
---+-------**-----------------*---------+--------*-----------------**-------+---
-2 * | * +2
** * | * **
* * | * *
** * | * **
* * | * *
* ** | ** **
**** -0.63 ****
|
>>>
>>> # drop axis labels:
>>> plot(x, y, plot_labels=False)
|
-\
// |\
/ | \
/ | \
/ | \
/ | \
/ | \
/ | \
/ | \
-------\ / | \ -------*
-----------\-----------------/---------+--------\-----------------//-----------
\ / | \ /
\ / | \ //
\ / | \ /
\ / | \ //
\ / | \ /
\ // | \- //
---- | ---/
|
>>>
>>> plot(x, y, dot='o', plot_slope=False)
|
o+1
oo |oo
o | o
o | o
|
o | o
o | o
o | o
|
oooooooo o | o oooooooo
---+-------oo-----------------o---------+--------o-----------------oo-------+---
-2 o | o +2
oo o | o oo
o o | o o
oo o | o oo
o o | o o
o oo | oo oo
oooo -0.63 oooo
|
>>>
>>> # store plot in a string:
>>> p = plot(x, y, output=str)
>>> print p
|
-+1
// |\
/ | \
/ | \
/ | \
/ | \
/ | \
/ | \
/ | \
-------\ / | \ -------*
---+-------\-----------------/---------+--------\-----------------//-------+---
-2 \ / | \ / +2
\ / | \ //
\ / | \ /
\ / | \ //
\ / | \ /
\ // | \- //
---- -0.63 ---/
|
Bases: object
Methods
PlotData | |
draw_axes(output_buffer, plot_data) | |
get_coord(val, min, step) | |
get_symbol_by_slope(slope, default_symbol) | |
plot_data(xy_seq, output_buffer, plot_data) | |
plot_double(x_seq, y_seq[, min_x, max_x, ...]) | |
plot_labels(output_buffer, plot_data) | |
plot_line(start, end, output_buffer, plot_data) | |
plot_single(seq[, min_x, max_x, min_y, max_y]) |