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| # | Title | User Story | Importance | Notes |
|---|---|---|---|---|
| 1 | Tie point interpolation | Part of the problem is caused by the unit (lat lon in degrees, slant range time in seconds) but this should probably stay as is. At high resolutions (< 1m), neighbouring pixels end up having the same value. Tie Point Grids and DEMs need to be interpolated to the resolution of the data product. Interpolators have already been made 64-bit. Now the resulting value needs to be saved as 64-bit.
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| 2 | Tie point writing/reading | When writing tie point grids a datatype field specifies if it is Float32 or Float64 When reading, the reader should use this field to first determine the type and then read the data accordingly |
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| 3 | Readers | All readers which create TPGs in particular for storing lat and lon data shall be changed to supprt Float64 | ||
| 4 | Interfaces | Access to tie point grids for the purpose of coordinate positions should be via getPixelDouble or getPixels(double[]) |
User interaction and design
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