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Size: 1.27 KB
Versions: 9
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Stored size: 1.27 KB
Contents
# frozen_string_literal: true
module GDAL
module Transformers
class ApproximateTransformer
# @return [FFI::Function]
def self.function
FFI::GDAL::Alg::ApproxTransform
end
attr_reader :c_pointer
# @param base_transformer [GDAL::Transformer]
# @param max_error [Float] The maximum cartesian error in the "output" space
# that will be accepted in the linear approximation.
def initialize(base_transformer, max_error)
base_transformer_function = base_transformer.function
transformer_arg_ptr = base_transformer.c_pointer
@c_pointer = FFI::GDAL::Alg.GDALCreateApproxTransformer(
base_transformer_function,
transformer_arg_ptr,
max_error
)
end
def destroy!
return unless @c_pointer
FFI::GDAL::Alg.GDALDestroyApproxTransformer(@c_pointer)
@c_pointer = nil
end
# @return [FFI::Function]
def function
self.class.function
end
# @param data [FFI::Pointer] Pointer to the data that is passed to
# #function.
# @param own_flag [Boolean]
def owns_subtransformer(data, own_flag)
FFI::GDAL::Alg.GDALApproxTransformerOwnsSubtransformer(data, own_flag)
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems