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Collecting field data is a useful method to address current gaps in information and to establish thematic databases. Nowadays, mobile geographic information system (GIS) applications are extensively used in collecting field data to enhance the decision-making ability of investigators while on the field. However, although the traditional object-oriented mode for developing GIS functions generally follows...
Numerical models are widely used for coordinate transformations. However, in most numerical models, polynomials are generated to approximate “true” geographic coordinates or plane coordinates, and one polynomial is hard to make simultaneously appropriate for both forward and inverse transformations. As there is a transformation rule between geographic coordinates and plane coordinates, how accurate...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.