Line Styles

Using line styles, you can control how the lines and outlines are drawn. The most useful line styles are:

• line width
• line shape

Line Width

You can use set_line_width()/get_line_width() to get or set line width.

The following program draws a rectangle whose borders width is 10.

from easygraphics import *

def main():
    init_graph(400, 300)
    set_line_width(10)
    draw_rect(50, 50, 350, 250)
    pause()
    close_graph()

easy_run(main)

Predefined Line Shapes

Using line shapes, you can draw dash line or dot line. Use set_line_style()/get_line_style() to set line shape.

LineStyle.SOLID_LINE	LineStyle.DASH_LINE	LineStyle.DOT_LINE
LineStyle.DASH_DOT_LINE	LineStyle.DASH_DOT_DOT_LINE	LineStyle.NO_PEN

The following program draws a rectangle with dash outlines.

from easygraphics import *

def main():
    init_graph(400, 300)
    set_line_width(10)
    set_line_style(LineStyle.DASH_LINE)
    draw_rect(50, 50, 350, 250)
    pause()
    close_graph()

easy_run(main)

Custom Line Shapes

If predefined line shapes is not satisfying, you can set custome line shape. To do this, you should:

1. use get_target() or create_image() to get the Image object you want to draw.
2. use the Image object’s get_pen() to get the pen. It’s a PyQt’s QPen object.
3. Use the pen’s setDashPattern() to set custom line shape.

from easygraphics import *

def main():
    init_graph(400, 300)
    set_line_width(10)
    target_image = get_target()
    pen = target_image.get_pen()
    pen.setDashPattern([1, 5, 2, 5])
    draw_rect(50, 50, 350, 250)
    pause()
    close_graph()

easy_run(main)

More Line Styles

After getting the pen object, you can set other pen attributes to get more line styles. See QPen’s documentation.