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+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [0.0.1] - 2020-04-27
+### Added
+- add gitignore
+- read all or specific part of .trr files
+- calculate surface from points
+- calculate angle between two vectors(3D) or lines(2D)
+
+### Changed
+- None
+
+### Removed
+- None
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