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Stadia Theory SURVEY2
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Stadia is a tacheometric form of distance measurement that relies on a fixed-angle intercept while tacheometry is the procedure by which horizontal distances and difference in elevations are determined indirectly using subtended intervals and angles observed with a transit or theodolite on a graduated rod or scale.
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Two Types of Observation
Horizontal Sights Inclined Sights
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The Stadia Method for Horizontal Sights
where:
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From the previous figure,
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Example: HORIZONTAL SIGHTS
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Solution:
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Inclined Stadia Sights
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Enhanced Projection on the Rod
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Example: INCLINED SIGHTS
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