Gela Malek Pour gmalekpour@esri.com Visualize Time Enabled Data using ArcGIS Qt (C++) and ToolkitAbout Esri • We build mapping technology that our customers use to solve the world’s most complex challenges offer solutions to apply location-based analytics to business practices - Visualize and analyze data more effectively - Collaborate and share maps, apps and reports easily • Headquartered in Southern worldPurpose of this talk • Showcase a quick way to create a desktop app to visualize time enabled data • Setup the development environment using Esri templates • Use the ArcGIS toolkit to use already

Using the Microsoft Graph API to get Office 365 data in your mobile apps Alex Ziskind Technical Director @digitalix www.nuvious.com Hi, I’m Alex From + 750 Million 50 Million per month Problems

第三届中国 Rust 开发者大会 Use Rust to Develop the Decentralized Open Data Application Mike Tang daogangtang@gmail.com @daogangtang 2023-06-08 ➔ 裁员 ➔ 互联网格局定型 ➔ 平台倒闭，数据丢失 这是一个什么时代？ 互联网的终局 创业 -> 种子 dataset, data will increase quickly on any dimension. ➔ Multiple dimensions Dataset Models ➔ What is open data? Build an internet platform, but open its data to everyone. ➔ Why we need open data? The The business of the closed data model has been at the end. A New Proposal: Open Data Application The Road to Open Web ➔ From the user side, it looks like just the traditional Internet app ➔ But everyone

Example: class Cell { public: void setValue(double value) { m_value = value; } private: double m_value{}; }; ... Cell cell; cell.setValue(1.2); void setValue(this Cell& self, void g() const &; void h() &&;  Those can be rewritten as: void f(this Data&); void g(this const Data&); void h(this Data&&);9 Explicit Object Parameters  Classes often have const and non-const GetName() const & { return m_name; } std::string&& GetName() && { return std::move(m_name); } private: std::string m_name; };10 Explicit Object Parameters  Code duplication  Can be avoided

newptr) { // Called infrequently Foo* oldptr = src.exchange(newptr); oldptr->retire(); } Shared data, frequently-used, infrequently-updated Hazard Pointer Synchronous Reclamation Beyond Concurrency TS2 – Maged Michael Global Cleanup Implementation • Must collect all retired objects (including in private caches) • Must check all hazard pointers against collected objects • Must complete reclamation of With global cleanup SequentialObjList list_; SharedObjList list_; Extra synchronization Removed private cache from Folly Using sharded domain lists instead Slow Not Scalable Is One Call to Global Cleanup

• 此外，如果不希望让引用 hellolib 的可执行文件自动添加这个路径，把 PUBLIC 改成 PRIVATE 即可。这就是他们的用途：决定一个属性要不要在被 link 的时候传播。 目标的一些其他选项 • 除了头文件搜索目录以外，还有这些选项， PUBLIC 和 PRIVATE 对他们同理： • target_include_directories(myapp PUBLIC /usr/include/eigen3) 不同的包之间常常有着依赖关系，而包管理器的作者为 find_package 编写的脚本（例如 /usr/lib/cmake/TBB/TBBConfig.cmake ）能够自动查找所有依赖，并利用刚刚提 到的 PUBLIC PRIVATE 正确处理依赖项，比如如果你引用了 OpenVDB::openvdb 那么 TBB::tbb 也会被自动引用。 • 其他包的引用格式和文档参考： https://cmake.org/cmak

custom targets 🚀 https://vcpkg io vcpkg is Enterprise Ready 📚 Registries Create your own private library catalog for use within vcpkg; great for internal, closed-source 3rd party libraries and

isn’t being declared? struct data_t { int a; int b; }; /* Get data from device ‘dev’. */ data_t get_data_from(size_t dev); What defines how dev is passed or data_t is returned? Calling conventions… being used here? push ... call data_t get_data_from(unsigned int) add esp, 4 add eax, edx Caller cleanup (cdecl) push ... call data_t get_data_from(unsigned int) add eax, edx cleanup (stdcall) data_t d = get_data_from(dev); return d.a + d.b;What isn’t being declared? struct data_t { int a; int b; }; /* Get data from device ‘dev’. */ data_t get_data_from(size_t dev);

 Why ranges?  Provide nicer and easier to read syntax: vector data { 11, 22, 33 }; sort(begin(data), end(data)); ranges::sort(data);  Eliminate mismatching begin/end iterators  Allows “range adaptors” chained using pipes  |13 Ranges  Example of chaining views: vector data { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }; auto result { data | views::filter([](const auto& value) { return value % 2 == 0; })/* Initializers  Designated initialization of aggregates  E.g.: struct Data { int anInt { 0 }; std::string aString; }; Data d { .aString = "Hello" };48 Spaceship Operator <=>  Official name:

int for each? While you could just represent these values with unsigned ints or the underlying data, these new calendrical types also provide valuable abstraction. To use weekdays, months, weekday_indexeds eapSecondInformation • For pre-2018 leap seconds, we maintain a static constexpr table to pull data from. • Note that we don’t currently have a way to detect upcoming leap seconds on older Windows 3:00 UTC America/ New York43 tzdb • This is a type that stores data from the time zone database. • Specifically, it contains data members: • string version; • vector