SketchUp models are fundamentally created by joining lines as the edges of the model. Faces are automatically created when any three or more lines or edges are in the same plane (an infinite flat 2D space), or coplanar, and they form a closed loop. These edge/face combinations are combined to create 3D models. The following image shows three unconnected coplanar lines. These lines were drawn with the Line Tool (this tool looks like a pencil).
The following image shows four connected coplanar lines and the subsequently created flat, 2 dimensional, face.
To create a 3D image, simply draw up or down in the blue direction (parallel to the blue axes). The coordinate system (axes) is covered later in this section. The following image shows the first line created in 3D space.
As you continue to draw lines, following the axes, faces are created. The following image shows three faces created simply by drawing lines parallel to the three axes directions (red, green, and blue).
There is one line left to draw to finish a 3 dimensional box. Notice that when this one line is drawn in, two faces are created.
No comments:
Post a Comment