check in TODO list

cython/TODO.md

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+TODO:
+☐ forward declaration?
+☐ Global functions
+☐ wrap VariableIndex: why is it in inference? If need to, shouldn't have constructors to specific FactorGraphs
+☐ [REFACTOR] better name for uninstantiateClass: very vague!!
+☐ [REFACTOR] typesEqual --> equalSignature
+☐ Unify cython/gtsam.h and the original gtsam.h
+☐ Proper overloads (constructors, static methods, methods)
+☐ CMake install script
+
+Completed/Cancelled:
+✔ Cython: Key and size_t: traits<size_t> doesn't exist @done (16-09-12 18:34)
+✔ KeyVector, KeyList, KeySet... @done (16-09-13 17:19)
+✔ [Nice to have] parse typedef @done (16-09-13 17:19)
+✔ ctypedef at correct places @done (16-09-12 18:34)
+✔ expand template variable type in constructor/static methods? @done (16-09-12 18:34)
+✔ NonlinearOptimizer: copy constructor deleted!!! @done (16-09-13 17:20)
+✔ Value: no default constructor @done (16-09-13 17:20)
+✔ ctypedef PriorFactor[Vector] PriorFactorVector @done (16-09-19 12:25)
+✔ Delete duplicate methods in derived class @done (16-09-12 13:38)
+✔ Fix return properly @done (16-09-11 17:14)
+ ✔ handle pair @done (16-09-11 17:14)
+✔ Eigency: ambiguous call: A(const T&) A(const Vector& v) and Eigency A(Map[Vector]& v) @done (16-09-11 07:59)
+✔ Eigency: Constructor: ambiguous construct from Vector/Matrix @done (16-09-11 07:59)
+✔ Eigency: Fix method template of Vector/Matrix: template argument is [Vector] while arugment is Map[Vector] @done (16-09-11 08:22)
+✔ Robust noise: copy assignment operator is deleted because of shared_ptr of the abstract Base class @done (16-09-10 09:05)
+✘ Cython: Constructor: generate default constructor? (hack: if it's serializable?) @cancelled (16-09-13 17:20)
+✘ Eigency: Map[] to Block @created(16-09-10 07:59) @cancelled (16-09-11 08:28)
+
+
+- inference before symbolic/linear
+- what's the purpose of "virtual" ??
+- Need default constructor and default copy constructor for almost every class... :(
+  ☐ support these constructors by default and declare "delete" for special classes?
+
+Installation:
+  ☐ Prerequisite: 
+    - Users create venv and pip install requirements before compiling
+    - Wrap cython script in gtsam/cython folder
+  ☐ Install built module into venv?
+
+Known issues:
+  ☐ Doesn't work with python3 installed from homebrew
+    - size-related issue: can only wrap up to a certain number of classes: up to mEstimator!
+    - Guess: 64 vs 32b? disutils Compiler flags?