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Eidcappsup 6877 wms tif byte classification

Jonathan Cooper requested to merge EIDCAPPSUP-6877-wms-tif-byte-classification into develop

The 'bytetype' property has been added to the map definition part of the document model. This property is used to determine if 'scaling' should be added to a generated mapfile when the metadata document refers to a raster dataset for which a wms can be generated. If true then the scaling instructions are NOT added to the mapfile, otherwise they are added.

The editor has been updated to present bytetype yes/no radio buttons when required, here are examples of when it should and shouldn't be visible and what it looks like:

Radio buttons show when type=raster and styling=classification: image

Radio buttons do not show when type does not equal raster: image

Radio buttons do not show when styling does not equal classification: image

This is what the mapfile looks like when we set the radio button 'yes' - ie this is a geotiff of type byte and you WILL NOT see any SCALE processing commands: DATA "ukish10k.tif" PROCESSING "BANDS=1" PROCESSING "RESAMPLE=NEAREST" CLASS NAME "0 to 0.5" EXPRESSION (0 < [pixel] AND [pixel] <= 0.5) STYLE COLOR "#FF0000" END END CLASS NAME "> 0.5" EXPRESSION (0.5 < [pixel] AND [pixel] <= 1) STYLE COLOR "#0000FF"

This is what the mapfile looks like when we set the radio button to 'no' - ie this is a geotiff not of type byte and you WILL see SCALE processing commands: DATA "ukish10k.tif" PROCESSING "BANDS=1" PROCESSING "RESAMPLE=NEAREST" PROCESSING "SCALE=0,1" PROCESSING "SCALE_BUCKETS=2" CLASS NAME "0 to 0.5" EXPRESSION (0 < [pixel] AND [pixel] <= 0.5) STYLE COLOR "#FF0000" END END CLASS NAME "> 0.5" EXPRESSION (0.5 < [pixel] AND [pixel] <= 1) STYLE COLOR "#0000FF"

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