CS1 Graphics

To use the graphics functions, make sure you import them in your notebook or your program:

from cs1.graphics import *

• open_canvas(width, height) Opens a new canvas with the given size and displays it. It will be filled with the current background color.

• set_color(color_name) Given a string like black, blue, etc., will set the current drawing color.

• set_background_color(color_name) Given a string like black, blue, etc., will set the current background color.

• set_color_rgb(red, blue, green) Given red, blue, and green between 0 and 255, will set the current drawing color to that value.

• set_background_color_rgb(red, blue, green) Given red, blue, and green between 0 and 255, will set the current background color to that value.

• set_line_thickness(thickness) Sets the thickness of the lines that are drawn.

• clear_canvas() Clears the canvas with the current background color.

• draw_line(x0, y0, x1, y1) Draws a line betwen (x0, y0) and (x1, y1).

• draw_polyline(x0, y0, x1, y1, ...) Draws a sequence of lines where each point is connected to the previous.

• draw_circle(centerx, centery, radius) Draws a circle at the given point, with the given radius.

• draw_filled_circle(centerx, centery, radius) Like draw_circle but fills the circle.

• draw_oval(centerx, centery, radiusx, radiusy) Draws an ellipse at the given center point with the provided radii.

• draw_filled_oval(centerx, centery, radiusx, radiusy) Like draw_oval but fills the oval.

• draw_rect(x, y, width, height) Draws a rectangle with upper corner at x, y.

• draw_filled_rect(x, y, width, height) Like draw_rect but fills the rectangle.

• draw_polygon(x1, y1, x2, y2, ...) Like draw_polyline but connects the last point to the first.

• draw_filled_polygon(x1, y1, x2, y2, ...) Like draw_polygon but fills the polygon.

• draw_string(message, x, y, text_size) Draws the given string centered at x, y with the given text size.