# Difference between revisions of "Dictionary:Angles (surveying)"

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− | The direction of a survey leg with respect to the preceeding leg of the survey traverse. Several measuring conventions are used (Figure [[Dictionary:Fig_A-13|A-13]]). The first leg of the traverse is usually specified by azimuth or compass direction. <b>Azimuth angles</b> are measured clockwise with respect to north (either true north or magnetic north), occasionally with respect to south. <b>Interior angles</b> are the angles lying inside a closed traverse. <b>Angles right</b> are measured clockwise after backsighting on the previous station. A <b>deflection angle</b> is the angle between the onward extension of the previous leg and the line ahead. | + | <translate> |

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+ | <translate>{{#category_index:A|angles (surveying)}} | ||

+ | The direction of a survey leg with respect to the preceeding leg of the survey traverse. Several measuring conventions are used (Figure [[Special:MyLanguage/Dictionary:Fig_A-13|A-13]]). The first leg of the traverse is usually specified by azimuth or compass direction. <b>Azimuth angles</b> are measured clockwise with respect to north (either true north or magnetic north), occasionally with respect to south. <b>Interior angles</b> are the angles lying inside a closed traverse. <b>Angles right</b> are measured clockwise after backsighting on the previous station. A <b>deflection angle</b> is the angle between the onward extension of the previous leg and the line ahead. | ||

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FIG. A-13. | FIG. A-13. | ||

<b>Angle measuring conventions</b>. Specifying by (<b>a</b>) <b>interior angles</b>, (<b>b</b>) <b>angles right</b>, (<b>c</b>) <b>deflection angles</b>, (<b>d</b>) <b>azimuth angles</b>. The first leg of a loop is specified by azimuth. | <b>Angle measuring conventions</b>. Specifying by (<b>a</b>) <b>interior angles</b>, (<b>b</b>) <b>angles right</b>, (<b>c</b>) <b>deflection angles</b>, (<b>d</b>) <b>azimuth angles</b>. The first leg of a loop is specified by azimuth. | ||

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## Revision as of 12:29, 16 April 2018

The direction of a survey leg with respect to the preceeding leg of the survey traverse. Several measuring conventions are used (Figure A-13). The first leg of the traverse is usually specified by azimuth or compass direction. **Azimuth angles** are measured clockwise with respect to north (either true north or magnetic north), occasionally with respect to south. **Interior angles** are the angles lying inside a closed traverse. **Angles right** are measured clockwise after backsighting on the previous station. A **deflection angle** is the angle between the onward extension of the previous leg and the line ahead.

FIG. A-13.
**Angle measuring conventions**. Specifying by (**a**) **interior angles**, (**b**) **angles right**, (**c**) **deflection angles**, (**d**) **azimuth angles**. The first leg of a loop is specified by azimuth.