You can place measurements and create measurement collections in Smart Review. Measurements consist of key-point to key-point measuring and are stackable, persistent, and available in English and Metric units regardless of the project environment.

For each measurement, you can measure the distance between two highlighted snaplock points, two surface points, the shortest distance between two objects, or between a surface point and a snaplock point. Smart Review shows you the points you selected, a line between the two points, and the distance between the points.

In Smart Review, there are two methods to measure points, continuous and non-continuous. Continuous measurements work like a "rolling tape measure," with a continuous connection between each selected point. Because each measurement requires two points, for N number of measurements, you must select N + 1 number of points. Non-continuous measurements consist of measurements between pairs of unique points. In non- continuous measurement, there is no connection between each pair of points and the next pair. To create N measurements using non-continuous measurement, you must select 2 * N points. The points comprising either the "rolling tape measure" or the non-continuous measurements are grouped together in a measurement collection. You can create your own collections, which is useful if you need more than one set of measurements, or use the default collection provided.

Keep in mind that when you select a point on a surface of an object in Smart Review, the selected point is an approximation based on the current visual representation of that object, and not the internal mathematical geometry representation. To get a more accurate measurement, your view point must be closer to the surface point you want to select. Accuracy can also be improved for some geometry types such as curved geometries by increasing the stroking tolerance. For more information, see the Stroking Tolerance Command.

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