easygraphics.processing package¶

A Processing (http://processing.org) like animation graphics module

from easygraphics import *
from easygraphics.processing import *
import math

x_spacing = 16  # How far apart should each horizontal location be spaced
theta = 0  # Start angle at 0
amplitude = 75  # Height of wave
period = 500  # How many pixels before the wave repeats

dx = (2 * math.pi / period) * x_spacing

def setup():
    global w
    set_size(640, 360)
    translate(0, get_height() // 2)
    set_background_color("black")
    set_fill_color("white")
    w = get_width() + 16  # Width of entire wave

def draw():
    global theta
    theta += 0.02
    clear_device()
    x = theta
    for i in range(w // x_spacing):
        y = math.sin(x) * amplitude
        fill_circle(i * x_spacing, y, 8)
        x += dx

run_app(globals())

Function list¶

Main App¶

run_app

To be redefined(Override)¶

`draw`
`setup`
`on_mouse_clicked`
`on_mouse_dragged`
`on_mouse_pressed`
`on_mouse_released`
`on_mouse_wheel`

Control and Settings¶

`full_screen`
`get_frame_rate`
`loop`
`mouse_pressed`
`mouse_x`
`mouse_y`
`noloop`
`prev_mouse_x`
`prev_mouse_y`
`redraw`
`set_frame_rate`
`set_size`

Functions¶

easygraphics.processing.redraw()¶

Call draw() to draw a frame once.

You must NOT redefine this function!

easygraphics.processing.loop()¶: Start looping.

easygraphics.processing.noloop()¶: Stop looping.

easygraphics.processing.run_app(_globals)¶

Run the processing app.

Parameters:	_globals – the python globals dict.

easygraphics.processing.set_size(width: int, height: int)¶

Open a canvas window with the specified size.

Parameters:	width – width of the canvas height – height of the canvas

easygraphics.processing.full_screen()¶: Open a full screen canvas.

easygraphics.processing.draw()¶

Draw an animation frame.

You should redefine this function in your program.

Returns:

easygraphics.processing.setup()¶

Set up the processing context.

You should redefine this function in your program.

easygraphics.processing.set_frame_rate(fps: int)¶

Set the animation frame rate (fps).

Parameters:	fps – the frame rate

easygraphics.processing.get_frame_rate() → int¶

Get the animation frame rate (fps).

Returns:	the frame rate

easygraphics.processing.on_mouse_wheel(e: <sphinx.ext.autodoc.importer._MockObject object at 0x7f5087bda550>)¶

The mouse wheel event handler.

You can redefine this function to handle the mouse wheel event.

easygraphics.processing.on_mouse_dragged()¶

The mouse drag event handler.

You can redefine this function to handle the mouse drag event.

easygraphics.processing.on_mouse_released()¶

The mouse release event handler.

You can redefine this function to handle the mouse release event.

easygraphics.processing.on_mouse_pressed()¶

The mouse press event handler.

You can redefine this function to handle the mouse press event.

easygraphics.processing.on_mouse_clicked()¶

The mouse click event handler.

You can redefine this function to handle the mouse click event.

class easygraphics.processing.ProcessingWidget(*args, auto_start=True, **kwargs)¶

The processing-like widget.

draw()¶

Draw an animation frame.

You should override this method.

full_screen()¶: Set the canvas size to full screen.

get_canvas() → easygraphics.image.Image¶

Get the canvas image.

Returns:	the canvas image

get_frame_rate() → int¶

Get the animation frame rate (fps).

Returns:	the frame rate

keyPressEvent(e: <sphinx.ext.autodoc.importer._MockObject object at 0x7f50785441d0>)¶

loop()¶: Start looping.

mouseMoveEvent(e: <sphinx.ext.autodoc.importer._MockObject object at 0x7f50785441d0>)¶

mousePressEvent(e: <sphinx.ext.autodoc.importer._MockObject object at 0x7f50785441d0>)¶

mouseReleaseEvent(e: <sphinx.ext.autodoc.importer._MockObject object at 0x7f50785441d0>)¶

noloop()¶: Stop looping.

on_mouse_clicked()¶

The mouse click event handler.

You can override it to handle the mouse click event.

on_mouse_dragged()¶

The mouse drag event handler.

You can override it to handle the mouse drag event.

on_mouse_pressed()¶

The mouse press event handler.

You can override it to handle the mouse press event.

on_mouse_released()¶

The mouse release event handler.

You can override it to handle the mouse release event.

on_mouse_wheel(e: <sphinx.ext.autodoc.importer._MockObject object at 0x7f50785441d0>)¶

The mouse wheel event handler.

You can override it to handle the mouse wheel event.

paintEvent(e: <sphinx.ext.autodoc.importer._MockObject object at 0x7f50785441d0>)¶

redraw()¶: Call draw() to draw a frame once.

set_frame_rate(fps)¶

Set the animation frame rate (fps).

Parameters:	fps – the frame rate

set_size(width: int, height: int)¶

Set the canvas size.

Parameters:	width – width of the canvas. height – height of the canvas.

setup()¶

Setup the drawing context.

You should override this method.

start()¶: Start the animation manually.

wheelEvent(e: <sphinx.ext.autodoc.importer._MockObject object at 0x7f50785441d0>)¶