The return type of this function meets the MutableBufferSequence requirements.ĭata is transferred from the front of the output sequence to the back The output sequence of the streambuf is accessible via the prepare() The return type of this function meets the ConstBufferSequence requirements. The input sequence of the streambuf is accessible via the data() Such as the send or receive operations of a socket: Objects are internal to the streambuf object, but direct access to theĪrray elements is provided to permit them to be used with I/O operations, Sequence and output sequence with one or more objects of some characterĪrray type, whose elements store arbitrary values. The class boost :: asio :: basic_streambuf is derived from std :: basic_streambuf to associate the input The MutableBufferSequenceĬoncepts have been defined so that containers such as std :: vector, The library implementation to pass the raw memory to the underlyingįinally, multiple buffers can be passed to scatter-gather operations (suchīy putting the buffer objects into a container. In generalĪn application should never need to do this, but it is required by Type safety violations must be explicitly requested using the buffer_cast function. Or std :: vector of POD elements, or from a To provide further safety, the libraryĪlso includes mechanisms for automatically determining the size of Given a buffer instance,Ī user can only create another buffer representing the same range of There is protection against buffer overruns. That is, a mutable_buffer is convertible to Types behave as std::pair would in conversions. Of these is to provide an opaque representation of contiguous memory, where: However, Boost.Asio does not use the above definitions as-is, but instead Here, a mutable_buffer would be convertible to a const_buffer, but conversion Typedef std :: pair mutable_buffer typedef std :: pair const_buffer These two types could therefore be defined as follows: Memory (where the latter is created from the storage for a const-qualified Makes a distinction between modifiable memory (called mutable) and non-modifiable In addition to specifying buffers as a pointer and size in bytes, Boost.Asio May be passed to the scatter-gather operations. These can be stored in a container, which The approach used in Boost.Asio is to define a type (actually two types) Therefore we require an abstraction to represent a collection of buffers. OpenVector(V, "c:/tnt/win32/vector.A scatter-read receives data into multiple buffers.Ī gather-write transmits multiple buffers. "IncludeIsland" include islands in computations "ComputeHistogram" compute histogram for each Vector polygon "ExcludeAll" do not include boundary cellsįlag for computing histogram and/or including islands (none, one, or both may be used) "Proportionally" compute proportionally (split boundary cells) "IncludeLargest" include if larger proportion of cell is inside )Ĭompute Raster attribute tables from a Vector object The horizontal dimension of a cell in Raster, as a decimal valueĬomputeRasterProperties(Raster, Vector, tableName$, tableDescription$, flag1$, flag2$. Flushes this raster to disk.Īny expression evaluating to a Raster (capitalized name) OpenRaster(Rout, "c:/tnt/testdata.rvc", "binaryout") OpenRaster(Rvar, "c:/tnt/testdata.rvc", "GREEN") īinarization(Rvar, "c:/tnt/testdata.rvc", "binaryout", myarray, 1) Value to change the raster values in the above array to (0 or 1). Object name of binary raster to be created. Number (0 if correlation cannot be calculated)Ĭor = AreaCorrelatePoint(Rs, xS, yS, Rd, xD, yD, sourceSize, targetSize) īinarization(Raster, filename$, objname$, array, binaryValue)Ĭalculates a raster binarization on an 8 or 4 bit raster Size of the area in target to search around To the non-hypotenuse side of a right triangleĪn angle in radians such that 0 = 0. The solution at zero is taken to be the limit as one approachesĪ number in the same format as the input parameterĪny expression evaluating to a number corresponding When values outside the domain are used, the solution is defined That is, float for input gives float for output SML ŠÖ”‰ðà for TNTmips ver6.6 SML module date: Nov 28 2001
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