Page 88 - iPro_trackGPT_V5_Class6
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Some commonly used Pen blocks are described as follows:
block erases everything drawn by the pen.
block creates a duplicate of the current Sprite. The image is stamped on the stage.
To see the image, click on the Sprite and drag. A duplicate of the Sprite appears behind it.
block puts the pen up and stops the Sprite from drawing anything.
The Sprite draws a non-stop line wherever it moves using block.
Use block to set the colour of the pen to a colour of your choice from the
drop-down menu.
block adjusts the pen’s colour,
saturation, brightness, and transparency. To modify
the pen effects, click on the first text box to choose
the effect you want to change. Then, click on the
second text box to enter a value that determines
how much the effect will be altered.
adjust the pen’s colour, saturation,
brightness, and transparency to the specified values.
DRAWING A POLYGON
Polygons are 2D shapes with three or more straight lines and angles. Examples of polygons are
triangle, square, rectangle, quadrilateral, pentagon, octagon, etc.
Equilateral Triangle Square Pentagon Hexagon
(3 sides) (4 sides) (5 sides) (6 sides)
Heptagon Octagon Nonagon Decagon
(7 sides) (8 sides) (9 sides) (10 sides)
To draw polygons in Scratch, follow these basic guidelines:
Determine the number of sides: Know how many sides the shape has. This number is
used in the Repeat block. For example, use Repeat 3 to draw a triangle and Repeat 4 to
draw a square.
Draw and turn: Each time you use the Repeat block, the Sprite will draw a line and turn at
each corner.
86 TrackGPT iPRO (V5.0)-VI

