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[geometry] Added example related to selection of distance strategy discussed on the mailing list (ml) and in ticket #5954

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[SVN r74723]
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Mateusz Loskot 2011-10-05 09:33:02 +00:00
parent 69b1a2f8f8
commit 421604d22e
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example/ml02_distance_strategy.cpp Normal file
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// Boost.Geometry (aka GGL, Generic Geometry Library)
// Copyright (c) 2009-2011 Mateusz Loskot, London, UK.
// Use, modification and distribution is subject to the Boost Software License,
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// Multipolygon DP simplification example from the mailing list discussion
// about the DP algorithm issue:
// http://lists.osgeo.org/pipermail/ggl/2011-September/001533.html
#include <boost/geometry.hpp>
#include <boost/geometry/strategies/cartesian/distance_pythagoras.hpp>
#include <boost/geometry/geometries/point_xy.hpp>
using namespace boost::geometry;
int main()
{
typedef model::d2::point_xy<double> point_xy;
point_xy p1(0.0, 0.0);
point_xy p2(5.0, 0.0);
// 1) This is direct call to Pythagoras algo
typedef strategy::distance::pythagoras<point_xy, point_xy, double> strategy1_type;
strategy1_type strategy1;
strategy1_type ::calculation_type d1 = strategy1.apply(p1, p2);
// 2) This is what is effectively called by simplify
typedef strategy::distance::comparable::pythagoras<point_xy, point_xy, double> strategy2_type;
strategy2_type strategy2;
strategy2_type::calculation_type d2 = strategy2.apply(p1, p2);
return 0;
}

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example/ml02_distance_strategy.vcproj Normal file
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<?xml version="1.0" encoding="Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="8.00"
Name="ml01_multipolygon_simplify"
ProjectGUID="{E7BFC111-F0E5-420F-869C-1FC3212270B5}"
RootNamespace="ml01_multipolygon_simplify"
Keyword="Win32Proj"
>
<Platforms>
<Platform
Name="Win32"
/>
</Platforms>
<ToolFiles>
</ToolFiles>
<Configurations>
<Configuration
Name="Debug|Win32"
OutputDirectory="$(SolutionDir)$(ConfigurationName)"
IntermediateDirectory="$(ConfigurationName)\ml01_multipolygon_simplify"
ConfigurationType="1"
InheritedPropertySheets=".\boost.vsprops"
CharacterSet="1"
>
<Tool
Name="VCPreBuildEventTool"
/>
<Tool
Name="VCCustomBuildTool"
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
/>
<Tool
Name="VCCLCompilerTool"
Optimization="0"
PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
RuntimeLibrary="1"
DisableLanguageExtensions="false"
UsePrecompiledHeader="0"
DebugInformationFormat="1"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLinkerTool"
GenerateDebugInformation="true"
SubSystem="1"
TargetMachine="1"
/>
<Tool
Name="VCALinkTool"
/>
<Tool
Name="VCManifestTool"
/>
<Tool
Name="VCXDCMakeTool"
/>
<Tool
Name="VCBscMakeTool"
/>
<Tool
Name="VCFxCopTool"
/>
<Tool
Name="VCAppVerifierTool"
/>
<Tool
Name="VCWebDeploymentTool"
/>
<Tool
Name="VCPostBuildEventTool"
/>
</Configuration>
<Configuration
Name="Release|Win32"
OutputDirectory="$(SolutionDir)$(ConfigurationName)"
IntermediateDirectory="$(ConfigurationName)\ml01_multipolygon_simplify"
ConfigurationType="1"
InheritedPropertySheets=".\boost.vsprops"
CharacterSet="1"
WholeProgramOptimization="1"
>
<Tool
Name="VCPreBuildEventTool"
/>
<Tool
Name="VCCustomBuildTool"
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
/>
<Tool
Name="VCCLCompilerTool"
PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
UsePrecompiledHeader="0"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLinkerTool"
SubSystem="1"
OptimizeReferences="2"
EnableCOMDATFolding="2"
TargetMachine="1"
/>
<Tool
Name="VCALinkTool"
/>
<Tool
Name="VCManifestTool"
/>
<Tool
Name="VCXDCMakeTool"
/>
<Tool
Name="VCBscMakeTool"
/>
<Tool
Name="VCFxCopTool"
/>
<Tool
Name="VCAppVerifierTool"
/>
<Tool
Name="VCWebDeploymentTool"
/>
<Tool
Name="VCPostBuildEventTool"
/>
</Configuration>
</Configurations>
<References>
</References>
<Files>
<File
RelativePath=".\ml02_distance_strategy.cpp"
>
</File>
</Files>
<Globals>
</Globals>
</VisualStudioProject>