The idea for this project came from a book entitled Introduction to Line Designs, by Dale Seymour. I was familar with his books on tesselation but I had not seen this book before. I was looking for his tesselation books at the library but they were checked out. This one came to me by serindipity.
The four sliders select the paramaters for the basic unit of the drawing. This unit is the angle selected by the slider with its legs set by the two length sliders. The legs are divided into an equal number of segments set by slider n. The segments are then joined from front to back.
It is easier to see this then to describe. The draw button will produce a single element. Start with an n value of 1 and work up.
The clear button erases the screen. ThetoggleTurtle button toggles the turrtles visibilty. The run Instruction button and text area allow for the inputing and execution of Logo commands. Note that the drawing turtle is 't1'. Preface all turtle comands with 't1' to ensure that the correct turtle is moved.
The images to the bottom left are drawing buttons. They will draw multiple elements. The dots within the images show where the apex of the triangles will be placed. If you set the angle to the value stated 'complete' drawings will be produced. Angle values other than those stated can be used. Experimentation is the key! Enjoy.
The Project
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