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kadas-albireo / kadas-albireo2

KADAS Albireo
GNU General Public License v2.0
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KadasHeightProfileDialog: Replace NoDataValue with 0 #23

Closed hb9chm closed 1 year ago

hb9chm commented 3 years ago

Replace SRTM NoDataValue (-10000) with 0.

manisandro commented 2 years ago

Could you explain the rationale?

hb9chm commented 2 years ago

Could you explain the rationale?

Height data often contains NODATA over a water body. If you do visibility analysis in an coastal area, eg check if an aircraft or a mountain (point with lat1/lon1/alt) is visible from a ship (point with lat2/lon2/alt=0) or vice versa, the analysis without the NODATA fix is not possible. The NODATA values is normally defined in the raster data and is often -10000.

manisandro commented 1 year ago

NODATA values are now omitted in plot as of c2a9a700307c2bd6072b7e74a519157b2d7ddee4