The 3D Warehouse is an online collection of 3D models or components. There are several ways to find and download models or components from the 3D Warehouse while working within SketchUp.
The SketchUp user interface is designed to be simple and easy to use.
System preferences (called SketchUp preferences on a Mac) are automatically saved as you make the changes. Model Info setting changes apply to current model only. If you want to save Model Info settings, save them as a new template, or overwrite the existing template file.
The Shape Style dialog box is used to adjust the fill and stroke for entities shapes in your presentation. The following image shows the Shape Style dialog box on Microsoft Windows:
You can transfer your strokes to the template file once you have an edited set of strokes. To transfer a stroke:
Drawing 3D polyline entities
Creating a Sandbox From Contour Lines
To create Sandbox From Contour lines: