For example, the three planes could be one “face side” and two “datum edges”. In engineering and drafting, a datum is a reference point, surface, or axis on an object against which measurements are made. If you’re writing for an academic audience, particularly in the sciences, “data” takes a plural verb. Strictly speaking ‘datum’ is the singular form and ‘data’ is the plural form. The point can be based on the finished floor level, an existing building or a benchmark. In construction, a datum point is a known point of reference on the basis of which further measurements or analysis can be made. Horizontal datums measure positions (latitude and longitude) on the surface of the Earth, while vertical datums are used to measure land elevations and water depths. There are two main datums in the United States. By taking measurements from a small number of set points, accuracy can be improved and maintained. When marking out an object, datum references are used as a reference point for all measurements to be taken from and can be chosen by the manufacturer. Abaqus/CAE creates the datum point where the edge or datum axis intersects a line that is normal to it and passing through the selected point, as shown in Figure 7. Select a point on the model and an edge or datum axis on which to project the point. See also pinpoint.Ģ plural datums, mathematics : something used as a basis for calculating or measuring measuring the distance between datum points … How do I create a datum point?Ĭreating a datum point by projecting a point onto a face. What is another description for datum point?Īny reference point of known or assumed coordinates from which calculation or measurements may be taken. An example of a datum is the assumed altitude of a specific piece of land used as the basis in calculating the altitude of the top of a mountain on the land. What is an example of datum?Īn example of a datum is a new scientific discovery used to reach a conclusion about the common cold. A datum is a plane, a straight line, or a point that is used as a reference when processing a material or measuring the dimensions of a target.
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