Adding Surfaces to a Model

• Choose either Surface Triangles or Surface Quads in the Edit | Current Type list.

• Execute Edit | Add Objects to enable the Add Surfaces operation.

All of the Points are displayed as bold Points so you can see them more clearly.

• Click near the first corner Point of the Surface to select it.

• If you select the wrong corner Point, click on it again to un-select it, and continue selecting Points.

• Click near the second corner Point of the Surface to select it.

• Click near the third corner Point of the Surface to select it.

If adding Surface Triangles, when you click near the third corner Point, a new Surface Triangle A Surface Triangle is a drawing Object that defines a surface between three Points on a structure model. Surfaces are used for hidden line displays, surface fills, surface textures, photo realistic models, and color contour displays. Surface Triangle properties are displayed in the Objects spreadsheet by executing Edit | Current Type | Surface Triangles. is added to the model, and a new row is added to the Surface Triangles spreadsheet.

If adding Surface Quads, when you click near the fourth corner Point, a new Surface Quad A Surface Quad is a drawing Object that defines a surface between four Points on a structure model. Surfaces are used for hidden line displays, surface fills, surface textures, photo realistic models, and color contour displays. Surface Quad properties are displayed in the Objects spreadsheet by executing Edit | Current Type | Surface Quads. is added to the model, and a new row is added to the Surface Quads spreadsheet.

WARNING:  When the Add Surfaces operation is enabled, a new Surface Triangle will be added to the model each time you click near three different Points in succession, and a Surface Quad each time you click near four Points.

• Execute Edit | Add Objects again to terminate the Add Surfaces operation.