When it is used the coordinate in the form @X, Y in AutoCAD, this coordinate system called: a) Absolute Cartesian (X,Y) coordinates b) Relative X,Y coordinates c) Relative polar coordinates d) Polar coordinate system e) None of the above 2- The panel in the 3D modelling workspace that includes the commands of Solid Union, Solid Subtract and Copy Edges …etc., known as: a) Modelling b) Mesh c) Modify d) Solid Editing e) Draw
The Correct Answer and Explanation is :
1. Coordinate System in the Form @X, Y in AutoCAD:
The correct answer is: b) Relative X,Y coordinates
Explanation:
In AutoCAD, when a coordinate is written in the form @X, Y, this refers to relative coordinates. It is called relative because the point is measured relative to the current cursor location or the last known point. This system is typically used for specifying points based on their distance and direction from the current position, rather than from a fixed origin (as in absolute coordinates).
In this case, the @ symbol indicates that the coordinates given are relative to the last point (the previous point or the cursor location). For example, if your last point was at (10, 5) and you enter @5,3, the new point will be calculated relative to the previous point, and the final coordinates would be (15, 8).
In contrast, absolute coordinates would be written without the @ symbol and reference the origin (0, 0) of the drawing or the global coordinate system.
2. Panel in the 3D Modelling Workspace Containing Solid Union, Solid Subtract, and Copy Edges:
The correct answer is: d) Solid Editing
Explanation:
In AutoCAD’s 3D modeling environment, the Solid Editing panel contains several tools specifically designed to edit and manipulate 3D solids. Among these tools, you’ll find commands like Solid Union, Solid Subtract, and Copy Edges. These commands are essential for modifying 3D solids, allowing users to combine solids, subtract one solid from another, or copy edges from a solid to create new geometry.
- Solid Union: Combines two or more solids into a single object.
- Solid Subtract: Removes one solid from another, leaving the resulting void.
- Copy Edges: Copies the edges of a solid to create new objects based on those edges.
These tools are part of the Solid Editing functionality, which is typically found in the 3D modeling workspace. This panel gives you the flexibility to work with solid objects, manipulate their geometry, and perform complex 3D operations.