How to draw a square grid using geometric sketchpad

How to draw a square grid with Geometry Sketchpad? PHP editor Xiaoxin brings detailed drawing operation methods. It can be easily completed with the following simple steps. Read on!

Open the geometric sketchpad, execute the [Data]-[New Parameter] command, and in the pop-up dialog box, modify the parameter name to n, the value to 6, and the unit is none. Use the line segment tool to draw a fixed line segment a as the side length of the square.

Draw a free point A on the plane and construct a square ABCD with the given side length a. Measure the length of line segment a, and then execute the mark distance command to translate point A to construct two vertices B and D of the square. Construct line segments AB and AD, draw the parallel line of line segment AB through point D, and draw the perpendicular line of the parallel line through point B. The intersection point is C. Hide the parallel lines and perpendicular lines. Construct line segments BC and CD to obtain square ABCD.

Select point A and parameter n=6, hold down the [Shift key], execute the [Transform] - [Depth Iteration] command, and press A→ in the pop-up dialog box B, A→C, A→D iteration, and then click the [Iteration] button.

In this way, the square grid as shown in the figure is completed. Use the [] keys to control the parameter n to increase or decrease the number of grids. .

Tip: The iteration depth of the geometric sketchpad is limited. The more images there are, the shallower the iteration depth is. Therefore, when we apply iteration, we should first estimate your iteration. Whether the number of times is within a reasonable range, otherwise the expected effect will not be achieved. At this time, multiple images should be resolved into low-order images as much as possible to increase the iteration depth.

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