Hello everyone! Today we are going to learn Xi from command in CAD software, which is a very practical command that can help us locate points more accurately when drawing. I believe everyone has had the experience of wanting to draw a circle or a rectangle, but not knowing which known point the center of the circle or the vertex of the rectangle is far away or very close, or wanting to draw a straight line or an angle, but not knowing which known point the starting point or end point is far away or very close. In these cases, it would be cumbersome and time-consuming if we entered the coordinate values directly. So is there a way for us to specify the point of the offset more conveniently? The answer is yes! It's the from command in CAD software!
From is the Base Point Capture Command, which allows us to specify an offset point at the current location after issuing or executing a command. This offset point can be at a certain distance from a known point (e.g. center of a circle, vertex of a rectangle, start of a line, center of angle, etc.), and can be represented by entering the @ symbol. For example, if we want to draw a circle about 10 cm from the vertex of the lower left corner of a rectangle, and draw it along the x-axis, then we can use the from command to specify the position of the center of the circle.
So how to use the from command? It's actually quite simple! Just look at the following examples.
Use the from command to draw a circle about 10 cm from the vertex of the lower left corner of a rectangle, and draw it along the x-axis.
Select the Circle tool, or type circle on your keyboard and press Enter to confirm.
When prompted to determine the center of the circle, enter fro on the keyboard and press Enter to confirm.
In the dialog box that appears, select the vertices in the lower left corner of the rectangle as the base object, and click OK.
When prompted to select an offset object at the current location, enter @10,0 on the keyboard and press Enter to confirm.
Enter the radius of the circle in the pop-up dialog box and click OK.
In this way, we draw a circle with the from command, the center of the circle is about 10 cm away from the vertex of the lower left corner of the rectangle, and we draw it along the x-axis.
The from command can only be used after a command has been issued or executed, and cannot be used alone.
The from command can only specify one offset point, not multiple offset points.
The offset of the from command can be positive or negative, indicating the direction of the offset.
The offset direction of the from command can be horizontal, vertical, or arbitrary, and can be selected with the mouse or keyboard.
The From command can be used in conjunction with other snap commands, such as end point snap, mid point snap, etc., to locate points more precisely.
Through this article, we have learned Xi the concept, usage and precautions of the FROM command in CAD software, and deepened our understanding and mastery of the FROM command through some examples. The from command is a very practical command, which can help us locate points more accurately when drawing, save time and energy, and improve the efficiency and quality of drawing. It is hoped that students will be able to skillfully use the from command to draw more beautiful and accurate graphics.