Add submodule of TinyXML-2 (#7)

* add submodule of tinyxml2 and fix build

* fix bugs in loading xml

* remove tinyxml and update README

* clean up cmake

Author: chongyangma

.gitignore

@@ -28,3 +28,4 @@
 *.app
 
 build
+bin

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "3rdparty/clipper"]
 	path = 3rdparty/clipper
 	url = https://github.com/skyrpex/clipper.git
+[submodule "3rdparty/tinyxml2"]
+	path = 3rdparty/tinyxml2
+	url = https://github.com/leethomason/tinyxml2.git

3rdparty/CMakeLists.txt

@@ -1,6 +1,2 @@
-# ADD_SUBDIRECTORY(clipper/cpp)
-SET(CLIPPER_FOLDER clipper/cpp)
-FILE(GLOB CLIPPER_SOURCES ${CLIPPER_FOLDER}/*.cpp)
-FILE(GLOB CLIPPER_HEADERS ${CLIPPER_FOLDER}/*.hpp)
-
-ADD_LIBRARY(polyclipping STATIC ${CLIPPER_SOURCES} ${CLIPPER_HEADERS})
+ADD_LIBRARY(polyclipping STATIC clipper/cpp/clipper.cpp clipper/cpp/clipper.hpp)
+ADD_LIBRARY(tinyxml2 STATIC tinyxml2/tinyxml2.cpp tinyxml2/tinyxml2.h)

3rdparty/tinyxml2

@@ -1,8 +1,5 @@
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 PROJECT(LevelSyn)
 
-set(CMAKE_RUNTIME_OUTPUT_DIRECTORY $<1:${CMAKE_SOURCE_DIR}/bin>)
-
 ADD_SUBDIRECTORY(3rdparty)
-ADD_SUBDIRECTORY(lib)
 ADD_SUBDIRECTORY(src)

CMakeLists.txt

@@ -22,7 +22,7 @@ This repository contains the source code and example data of the following publi
 
 The code is cross-platform and has been tested under Windows (MSVC), Linux and Mac OS X. Compiling from scratch requires the installation of [CMake](https://cmake.org/) and [Boost C++ Libraries](http://www.boost.org/). Additional dependencies (already included in this repo) are:
 * [Clipper 6.4.2](https://github.com/skyrpex/clipper) for polygon intersection computation
-* [tinyxml 2.6.2](http://www.grinninglizard.com/tinyxml/) for xml parsing
+* [TinyXML-2](https://github.com/leethomason/tinyxml2) for xml parsing
 
 ## Usage