module GDAL::RasterAttributeTable::Extensions
Public Instance Methods
column(index)
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Get column_name
, column_usage
, column_type
as a Hash.
@param index [Integer] @return [Hash]
# File lib/gdal/extensions/raster_attribute_table/extensions.rb, line 24 def column(index) { name: column_name(index), usage: column_usage(index), type: column_type(index) } end
columns()
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@return [Array<Hash>]
# File lib/gdal/extensions/raster_attribute_table/extensions.rb, line 33 def columns each_column.to_a end
each_column() { |column(i)| ... }
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@return [Enumerator] @yieldparam [Hash]
# File lib/gdal/extensions/raster_attribute_table/extensions.rb, line 39 def each_column return enum_for(:each_column) unless block_given? column_count.times { |i| yield column(i) } end
set_value(row, field, value)
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@param row [Integer] @param field [Integer] @param value [String, Float
, Integer]
# File lib/gdal/extensions/raster_attribute_table/extensions.rb, line 11 def set_value(row, field, value) case value.class when String then set_value_as_string(row, field, value) when Float then set_value_as_double(row, field, value) when Integer then set_value_as_integer(row, field, value) else raise GDAL::UnknownRasterAttributeTableType, "Unknown value type for value '#{value}'" end end