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manual:user_guide:tools:altitude [2023/06/09 15:58] – mstupka | manual:user_guide:tools:altitude [2024/02/16 12:11] (current) – mstupka | ||
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* **Altitude** - uses some other source of ground altitude - external maps, measuring, tourist guide posts, etc. as the reference. Locus Map then calibrates the pressure sensor according to this value. | * **Altitude** - uses some other source of ground altitude - external maps, measuring, tourist guide posts, etc. as the reference. Locus Map then calibrates the pressure sensor according to this value. | ||
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+ | ===== Altitude measurement workflow ===== | ||
+ | Locus Map applies the above-mentioned computations in the following order: | ||
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+ | * received altitude from the GNSS unit | ||
+ | * using elevation data files (if enabled) | ||
+ | * using the pressure sensor | ||
+ | * final filtering | ||
+ | If step 2 is missing, the pressure sensor calibration uses directly received altitude values. | ||
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+ | <WRAP center round tip> | ||
+ | The **recommended setup** is using elevation data (fully replacing GNSS) without a pressure sensor or using the elevation data only to optimize altitude (useful to eliminate unwanted peaks) + pressure sensor if it's available. | ||
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