Tag: ICS

Turtle Graphics Cheatsheet

Turtle Pen
turtle.pen(pencolor=”red”, pensize=10, fillcolor=”black”) Pens have attributes such as color, size, and fillcolor.
turtle.up() Sets the pen state to be up (not drawing).
turtle.down() Sets the pen state to be down (drawing).
turtle.color(r,g,b) See below
turtle.color(s) Sets the color that the pen will draw until the color is changed. It takes either 1) three arguments, each a floating point number between 0.0 — 1.0, where the first the amount of red, the second is the amount of green, and the third is the amount of blue, or 2) a “color string” the name of a TK color (e.g., “black”, “red”, “blue”, …)
turtle.begin_fill() See below
turtle.end_fill() To fill a figure, use turtle.begin_fill() before you start drawing the figure. Draw the figure. Then execute turtle.end_fill(). The figure drawn between the two fill commands will be filled with the present color setting.
turtle.hideturtle() See below
turtle.showturtle() Sets the state to hide / show the turtle. When shown, you see it as a small arrowhead pointed in the direction of the heading.
turtle.fill(True) To fill a figure, use turtle.fill(True) before you start drawing the figure. The figure drawn will be filled with the present color setting.
Turtle Draw
turtle.right(degrees) Turns the direction that the turtle is facing right (clockwise) by the amount indicated (in degrees).
turtle.left(degrees) Turns the direction that the turtle is facing left (counterclockwise) by the amount indicated (in degrees).
turtle.forward(distance) Moves the turtle forward (in the direction the turtle is facing) the distance indicated (in pixels). Draws a line if the pen is down, not if the pen is up.
turtle.backward(distance) Moves the turtle backward (in the direction opposite to how the turtle is facing) the distance indicated (in pixels). Draws a line if the pen is down, not if the pen is up.
turtle.setheading(angle) Sets the orientation of the turtle to angle. Here are some common directions in degrees: 0 (east) 90 (north) 180 (west) 270 (south)
turtle.goto(x,y) Moves the turtle to the specified coordinates, drawing a straight line to the destination (x,y) if the pen is down, and not drawing if the pen is up.
turtle.circle(radius) Draws a circle of the indicated radius. The turtle draws the circle tangent to the direction the turtle is facing.
Turtle other
turtle.xcor(),turtle.ycor() Returns the x – coordinate / y – coordinate of the current pen position.
x, y = turtle.pos() Sets the variables x and y to the turtle’s current position
turtle.exitonclick() or turtle.done() To prevent the screen from closing.
turtle.bye() Close the turtle drawing window
turtle.speed(integer) Set the animation speed of the turtle. 1 = slowest, 10 = fastest. 0 turns off animation completely
turtle.shape(‘turtle’) Set the shape. You can also choose from arrow, square, circle, triangle and classic
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Python String Assignments

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Tools

Throughout the course we will be using various tools to help our learning:
  • Portable Apps
    • Chrome
    • Notepad++
  • Lastpass
  • Diigo (social bookmarking)
  • Google Drive
  • Google Takeout
  • Google Sites (the NEW Google Sites)
  • Google Keep
  • Gmail
  • Twitter
  • Dropbox