YOU LEARN HERE...

some more Turtle commands with which you can draw colored pictures. The turtle graphic uses the so-called X11 colors On the website w3schools.com/colors/colors_x11.asp you will find 140 colors that you can use in your Turtle graphics programs (e.g. yellow, gold, orange, red, maroon, violet, magenta, purple, navy, blue, skyblue, cyan, turquoise, lime, green, darkgreen, chocolate, brown, black, gray, white....).

EXAMPLE

You want to draw a burning red candle with the Turtle. First you draw the candle itself with a thick red pen. Then move a little further with the pen lifted and draw a yellow-filled circle with the dot(40)command. To draw the wick, move back slightly with a thin black pen. As new functions you need setPenColor() for the pen color setPenWidth() for the pen thickness, penUp() and penDown() to lift the pen up and down. Finally, hide the turtle with hideTurtle().

Program: [► WebTigerPython]   [► WebTigerJython]

from gturtle import *

makeTurtle()
setPenWidth(60)
setPenColor("red")
forward(100) 
penUp()
forward(50)
penDown()
setPenColor("yellow")
dot(40)
setPenWidth(5)
setPenColor("black")
back(15) 
hideTurtle()

REMEMBER...

Use setPenColor(“color”) to change the pen color. Use setColor(“color”) to change the turtle color. On the website w3schools.com/colors/colors_x11.asp you will find many other colors that you can use as pen and turtle colors. The color names are not case-sensitive, but they must be enclosed in quotation marks.

The # character is used in Python for comments. You can use it to insert comments that are not taken into account when the program is executed.

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