2.3.4. PLINE COMMAND (POLY LINE)

Poly line is a series of connected line segments created as one object. The width of the object can be controlled.

A polyline is a tool in computer-aided drawing that allows you to create complex shapes by connecting multiple straight lines and arcs as a single object. Unlike individual line segments that can be treated separately, a polyline treats all connected segments as one continuous object. Additionally, you can define the width of the polyline, which can help in visualizing the thickness of lines in your design.

Think of a polyline like a piece of ribbon that you can bend and twist into different shapes. Each curve and straight section of the ribbon connects smoothly, and you can control how wide the ribbon is, making it look more prominent in your design.

COMMAND: PLINE or PL. From point; specify a point. Specify a point (2) or enter an option.

To draw a polyline, you begin by typing the command 'PLINE' or simply 'PL'. You then have to specify the starting point of your polyline by clicking on the canvas or entering coordinates. After that, you can continue adding points where you want to create straight line segments or select options to modify the properties of the polyline, such as closing the shape or changing segment widths.

Imagine you're walking around a park with a friend. You start at a specific point, say the entrance, and you decide where to walk next by choosing different paths. Each new path you take is like a new point in your polyline, and you can decide whether to link them straight or curve around like in a playground.

End point of line; Draw a line segment. Arc; changes P LINE to ARC mode. Close; close a poly line.

Once you have drawn your segments, you can define where the polyline ends by specifying the endpoint. Additionally, you have the option to switch modes if you want to add arcs instead of straight lines. This allows for more versatility in your design. If you want to create a closed shape, you can simply use the 'Close' option, which will connect the last point back to the starting point, completing your shape.

Think of completing a craft project. After you cut out several pieces of paper, you realize you want to connect them perfectly to create a flower shape. You can decide to round out the edges or join the last piece back to the starting point, just like closing your polyline.

Half width; specify width from center of a wide polyline segment to one of its edges. Length; draw a line segment of a specified length. Undo; removes the most recent line segment.

In this section of using the PLINE command, you can define the width of your polyline. The 'Half width' option lets you specify how wide the line extends from its center to its edges. You can also choose to draw a segment of a specified length directly. If you make a mistake or change your mind about the last segment you drew, you can use the 'Undo' option to remove it easily.

Picture icing on a cake: when you decide to spread icing across a cake, you can choose how thick or thin to make the icing (like setting the width of your polyline). If you accidentally make a mistake and want to fix it, you can swipe it off (like using 'Undo') and start again.

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