TIN stands for ________ Irregular Network.

TIN stands for ________ Irregular Network.

• A. Triangular
• B. Triangulated
• C. Tangential
• D. Topographic

Answer: (A)

The concept being tested is what the acronym TIN represents in terrain modeling. A TIN is a Triangular Irregular Network, where the surface is approximated by a mesh of triangles. The word Triangular is the key because the fundamental elements are triangular facets. Irregular reflects that the sample points (elevations) aren’t evenly spaced, so the triangles vary in size and shape. Network indicates that these triangles form a connected mesh that models the continuous surface. The other terms don’t fit the acronym: Triangulated would describe the process of creating triangles rather than the type of mesh; Topographic relates to the nature of the surface rather than the acronym itself; Tangential isn’t related to this terminology.

The concept being tested is what the acronym TIN represents in terrain modeling. A TIN is a Triangular Irregular Network, where the surface is approximated by a mesh of triangles. The word Triangular is the key because the fundamental elements are triangular facets. Irregular reflects that the sample points (elevations) aren’t evenly spaced, so the triangles vary in size and shape. Network indicates that these triangles form a connected mesh that models the continuous surface. The other terms don’t fit the acronym: Triangulated would describe the process of creating triangles rather than the type of mesh; Topographic relates to the nature of the surface rather than the acronym itself; Tangential isn’t related to this terminology.