How to dynamically demonstrate sine wave with geometric artboard

Sine Wave is the most single frequency component of a signal, because the waveform of this signal is a mathematical sine curve named. The courseware of dynamic demonstrating sine wave is made by using geometry artboard , and the working state of sine wave is visualized.

　　Geometric artboard dynamic demo sine Wave courseware Template sample diagram:

　　

　　The detailed steps for making the courseware are as follows:

1. Draw points A and B. Draw a straight line over points A and B. With the point a point B selected, select Point at center and Circle on the construct menu to construct Circle A, which intersects the line at point B.

2. Take a little C in the circle. Select Point C, select Edit-Action class button-animation command. Use the default settings.

3. Take a little D point on the line and at the right of point B. Select the dot C and line, select the "construct"-"parallel" command, and Point D to draw the vertical lines of the parallels so that they intersect at point E.

4. Double-click the point A, then select Point C, select the transform-Rotate command, set the rotation angle to 15 degrees, and get point C '.

5. Select Point D, select the transform-Pan command, set the rotation angle to 0 degrees, and the translation distance to 0.6 to get point d '.

6. Over C ', draw the parallel line AB. Dot d ' Draws the perpendicular of this parallel line, intersecting at Point F. Draw the segment EF.

7. Select two parallel lines and two vertical line to hide them.

8. Select the point C, D, select "Transform"-"Iteration" command, click on Point C ', d '. Select the "Show"-"Add Iteration" command until you increase the number of iterations to 30 and click the "Iteration" button. (Note: The greater the number of iterations, the longer the sine wave will be.) ）

More geometry artboard Templates: http://www.jihehuaban.com.cn/template.html

How to dynamically demonstrate sine wave with geometric artboard