The operation process of drawing a cylinder with geometric sketchpad

Do you know the operation process of drawing a cylinder with the geometric sketchpad? Geometry Sketchpad is a powerful geometric drawing software that can help us draw various geometric figures, including cylinders. If you still don't know how to use the geometric sketchpad to draw a cylinder, then please continue reading the following article. PHP editor Xigua will introduce you to the steps of drawing a cylinder in detail.

1. Construct ellipses and points. Open the Geometry Sketchpad, click [Custom Tools] on the sidebar - [Conic Section A] - [Ellipse] to draw an ellipse, and use the [Point Tool] to draw a point A on the ellipse.

2. Translate the center of the circle and point A. Select the center point of the circle and point A, as shown in the figure, click [Transform] - Translation in the menu bar. Fill in the translation distance in the pop-up dialog box and click the [Translate] button.

3. Construct the second ellipse. Select point O and point A, select [Iteration] in the [Transform] menu, and click point A’ and point O’ respectively in the iteration window to set them as the initial image. Select Decrease the number of times in the [Show Iterations] button, and finally click Iteration to get another ellipse.

4. Construct line segments. Select points O, O’ and AA’ respectively and use the [Construction] menu to construct line segments. Double-click the line segment OO’ to mark it as a mirror surface.

5. Select line segment AA’ and two endpoints. Select the [Reflection] command in the [Transform] menu, hide the line segment OO’, and complete the cylinder drawing.

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