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{anchor:example file}
POINT X Y Z TEMPERATURE PRESSURE
0 3.4 234.3 45.12 0.43 45.6
1 5.6 290.5 55.63 0.44 45.5
2 6.67 300.3 78.00 0.45 45.3
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Polydata has a so-called explicit point representation. This means that each point's coordinate values are contained in the dataset. Since poly data points have no inherent structure and thus may appear anywhere in space, we need to store their actual coordinate values in order to infer their position. A common way of representing data is column format. The X, Y, Z coordinates are displayed in separate columns along with any additional data like in the #example file.
Grid
A grid is a regular lattice of points aligned with the coordinate axes. In Geocap this type of grid is also referred to as structured points, while other sources use the term uniform grid.
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