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iho-ohi / S-102-Product-Specification

It is opened to develop S-102 Bathymetric Surface Product Specification. The contents of this repository are not offical publication in force, therefore please check the final version on the IHO website.
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Sea IQ portrayal examples #48

Open PaulAusHydro opened 1 year ago

PaulAusHydro commented 1 year ago

Not really an issue to be resolved per se (so happy for this to be deleted/moved) but following on from last week's PT discussions about "contouring" portrayal, I have captured a couple of screen shots from Sea IQ of some trial S-102 data from Port of Melbourne. This data is generated as "shoal biased" pixels at 20 metre resolution, with SeaIQ defining the contour and go/no-go zones based on specified safety depth of 16.2 m. Point being that the derived contour, when viewed in raster mode, does trace around the pixel boundaries:

SeaIQ_20metre_screen_capture1 SeaIQ_20metre_screen_capture2

When viewed in vector mode, contouring behaviour does depend on whether the "Interpoloate contour line" option is toggled on/off: SeaIQ_20metre_screen_capture3 SeaIQ_20metre_screen_capture4

hasel001 commented 5 months ago

Chair has action to migrate the content of this issue to a Wiki entry and to close the issue (per PT16 decision).