Remove eigen3 dependency

11 files changed, 0 insertions, 1370 deletions

diff --git a/3rdparty-notices/EIGEN-COPYING.txt b/3rdparty-notices/EIGEN-COPYING.txt
deleted file mode 100644
index c203fff6..00000000
--- a/3rdparty-notices/EIGEN-COPYING.txt
+++ /dev/null
@@ -1,379 +0,0 @@
-The opentrack project is using the Eigen3 linear algebra library with site at
-<http://eigen.tuxfamily.org/>
-
-We're only using the MPL2-licensed bits. This is to avoid copyleft. License
-follows:
-
-Mozilla Public License Version 2.0
-==================================
-
-1. Definitions
---------------
-
-1.1. "Contributor"
-    means each individual or legal entity that creates, contributes to
-    the creation of, or owns Covered Software.
-
-1.2. "Contributor Version"
-    means the combination of the Contributions of others (if any) used
-    by a Contributor and that particular Contributor's Contribution.
-
-1.3. "Contribution"
-    means Covered Software of a particular Contributor.
-
-1.4. "Covered Software"
-    means Source Code Form to which the initial Contributor has attached
-    the notice in Exhibit A, the Executable Form of such Source Code
-    Form, and Modifications of such Source Code Form, in each case
-    including portions thereof.
-
-1.5. "Incompatible With Secondary Licenses"
-    means
-
-    (a) that the initial Contributor has attached the notice described
-        in Exhibit B to the Covered Software; or
-
-    (b) that the Covered Software was made available under the terms of
-        version 1.1 or earlier of the License, but not also under the
-        terms of a Secondary License.
-
-1.6. "Executable Form"
-    means any form of the work other than Source Code Form.
-
-1.7. "Larger Work"
-    means a work that combines Covered Software with other material, in 
-    a separate file or files, that is not Covered Software.
-
-1.8. "License"
-    means this document.
-
-1.9. "Licensable"
-    means having the right to grant, to the maximum extent possible,
-    whether at the time of the initial grant or subsequently, any and
-    all of the rights conveyed by this License.
-
-1.10. "Modifications"
-    means any of the following:
-
-    (a) any file in Source Code Form that results from an addition to,
-        deletion from, or modification of the contents of Covered
-        Software; or
-
-    (b) any new file in Source Code Form that contains any Covered
-        Software.
-
-1.11. "Patent Claims" of a Contributor
-    means any patent claim(s), including without limitation, method,
-    process, and apparatus claims, in any patent Licensable by such
-    Contributor that would be infringed, but for the grant of the
-    License, by the making, using, selling, offering for sale, having
-    made, import, or transfer of either its Contributions or its
-    Contributor Version.
-
-1.12. "Secondary License"
-    means either the GNU General Public License, Version 2.0, the GNU
-    Lesser General Public License, Version 2.1, the GNU Affero General
-    Public License, Version 3.0, or any later versions of those
-    licenses.
-
-1.13. "Source Code Form"
-    means the form of the work preferred for making modifications.
-
-1.14. "You" (or "Your")
-    means an individual or a legal entity exercising rights under this
-    License. For legal entities, "You" includes any entity that
-    controls, is controlled by, or is under common control with You. For
-    purposes of this definition, "control" means (a) the power, direct
-    or indirect, to cause the direction or management of such entity,
-    whether by contract or otherwise, or (b) ownership of more than
-    fifty percent (50%) of the outstanding shares or beneficial
-    ownership of such entity.
-
-2. License Grants and Conditions
---------------------------------
-
-2.1. Grants
-
-Each Contributor hereby grants You a world-wide, royalty-free,
-non-exclusive license:
-
-(a) under intellectual property rights (other than patent or trademark)
-    Licensable by such Contributor to use, reproduce, make available,
-    modify, display, perform, distribute, and otherwise exploit its
-    Contributions, either on an unmodified basis, with Modifications, or
-    as part of a Larger Work; and
-
-(b) under Patent Claims of such Contributor to make, use, sell, offer
-    for sale, have made, import, and otherwise transfer either its
-    Contributions or its Contributor Version.
-
-2.2. Effective Date
-
-The licenses granted in Section 2.1 with respect to any Contribution
-become effective for each Contribution on the date the Contributor first
-distributes such Contribution.
-
-2.3. Limitations on Grant Scope
-
-The licenses granted in this Section 2 are the only rights granted under
-this License. No additional rights or licenses will be implied from the
-distribution or licensing of Covered Software under this License.
-Notwithstanding Section 2.1(b) above, no patent license is granted by a
-Contributor:
-
-(a) for any code that a Contributor has removed from Covered Software;
-    or
-
-(b) for infringements caused by: (i) Your and any other third party's
-    modifications of Covered Software, or (ii) the combination of its
-    Contributions with other software (except as part of its Contributor
-    Version); or
-
-(c) under Patent Claims infringed by Covered Software in the absence of
-    its Contributions.
-
-This License does not grant any rights in the trademarks, service marks,
-or logos of any Contributor (except as may be necessary to comply with
-the notice requirements in Section 3.4).
-
-2.4. Subsequent Licenses
-
-No Contributor makes additional grants as a result of Your choice to
-distribute the Covered Software under a subsequent version of this
-License (see Section 10.2) or under the terms of a Secondary License (if
-permitted under the terms of Section 3.3).
-
-2.5. Representation
-
-Each Contributor represents that the Contributor believes its
-Contributions are its original creation(s) or it has sufficient rights
-to grant the rights to its Contributions conveyed by this License.
-
-2.6. Fair Use
-
-This License is not intended to limit any rights You have under
-applicable copyright doctrines of fair use, fair dealing, or other
-equivalents.
-
-2.7. Conditions
-
-Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
-in Section 2.1.
-
-3. Responsibilities
--------------------
-
-3.1. Distribution of Source Form
-
-All distribution of Covered Software in Source Code Form, including any
-Modifications that You create or to which You contribute, must be under
-the terms of this License. You must inform recipients that the Source
-Code Form of the Covered Software is governed by the terms of this
-License, and how they can obtain a copy of this License. You may not
-attempt to alter or restrict the recipients' rights in the Source Code
-Form.
-
-3.2. Distribution of Executable Form
-
-If You distribute Covered Software in Executable Form then:
-
-(a) such Covered Software must also be made available in Source Code
-    Form, as described in Section 3.1, and You must inform recipients of
-    the Executable Form how they can obtain a copy of such Source Code
-    Form by reasonable means in a timely manner, at a charge no more
-    than the cost of distribution to the recipient; and
-
-(b) You may distribute such Executable Form under the terms of this
-    License, or sublicense it under different terms, provided that the
-    license for the Executable Form does not attempt to limit or alter
-    the recipients' rights in the Source Code Form under this License.
-
-3.3. Distribution of a Larger Work
-
-You may create and distribute a Larger Work under terms of Your choice,
-provided that You also comply with the requirements of this License for
-the Covered Software. If the Larger Work is a combination of Covered
-Software with a work governed by one or more Secondary Licenses, and the
-Covered Software is not Incompatible With Secondary Licenses, this
-License permits You to additionally distribute such Covered Software
-under the terms of such Secondary License(s), so that the recipient of
-the Larger Work may, at their option, further distribute the Covered
-Software under the terms of either this License or such Secondary
-License(s).
-
-3.4. Notices
-
-You may not remove or alter the substance of any license notices
-(including copyright notices, patent notices, disclaimers of warranty,
-or limitations of liability) contained within the Source Code Form of
-the Covered Software, except that You may alter any license notices to
-the extent required to remedy known factual inaccuracies.
-
-3.5. Application of Additional Terms
-
-You may choose to offer, and to charge a fee for, warranty, support,
-indemnity or liability obligations to one or more recipients of Covered
-Software. However, You may do so only on Your own behalf, and not on
-behalf of any Contributor. You must make it absolutely clear that any
-such warranty, support, indemnity, or liability obligation is offered by
-You alone, and You hereby agree to indemnify every Contributor for any
-liability incurred by such Contributor as a result of warranty, support,
-indemnity or liability terms You offer. You may include additional
-disclaimers of warranty and limitations of liability specific to any
-jurisdiction.
-
-4. Inability to Comply Due to Statute or Regulation
----------------------------------------------------
-
-If it is impossible for You to comply with any of the terms of this
-License with respect to some or all of the Covered Software due to
-statute, judicial order, or regulation then You must: (a) comply with
-the terms of this License to the maximum extent possible; and (b)
-describe the limitations and the code they affect. Such description must
-be placed in a text file included with all distributions of the Covered
-Software under this License. Except to the extent prohibited by statute
-or regulation, such description must be sufficiently detailed for a
-recipient of ordinary skill to be able to understand it.
-
-5. Termination
---------------
-
-5.1. The rights granted under this License will terminate automatically
-if You fail to comply with any of its terms. However, if You become
-compliant, then the rights granted under this License from a particular
-Contributor are reinstated (a) provisionally, unless and until such
-Contributor explicitly and finally terminates Your grants, and (b) on an
-ongoing basis, if such Contributor fails to notify You of the
-non-compliance by some reasonable means prior to 60 days after You have
-come back into compliance. Moreover, Your grants from a particular
-Contributor are reinstated on an ongoing basis if such Contributor
-notifies You of the non-compliance by some reasonable means, this is the
-first time You have received notice of non-compliance with this License
-from such Contributor, and You become compliant prior to 30 days after
-Your receipt of the notice.
-
-5.2. If You initiate litigation against any entity by asserting a patent
-infringement claim (excluding declaratory judgment actions,
-counter-claims, and cross-claims) alleging that a Contributor Version
-directly or indirectly infringes any patent, then the rights granted to
-You by any and all Contributors for the Covered Software under Section
-2.1 of this License shall terminate.
-
-5.3. In the event of termination under Sections 5.1 or 5.2 above, all
-end user license agreements (excluding distributors and resellers) which
-have been validly granted by You or Your distributors under this License
-prior to termination shall survive termination.
-
-************************************************************************
-*                                                                      *
-*  6. Disclaimer of Warranty                                           *
-*  -------------------------                                           *
-*                                                                      *
-*  Covered Software is provided under this License on an "as is"       *
-*  basis, without warranty of any kind, either expressed, implied, or  *
-*  statutory, including, without limitation, warranties that the       *
-*  Covered Software is free of defects, merchantable, fit for a        *
-*  particular purpose or non-infringing. The entire risk as to the     *
-*  quality and performance of the Covered Software is with You.        *
-*  Should any Covered Software prove defective in any respect, You     *
-*  (not any Contributor) assume the cost of any necessary servicing,   *
-*  repair, or correction. This disclaimer of warranty constitutes an   *
-*  essential part of this License. No use of any Covered Software is   *
-*  authorized under this License except under this disclaimer.         *
-*                                                                      *
-************************************************************************
-
-************************************************************************
-*                                                                      *
-*  7. Limitation of Liability                                          *
-*  --------------------------                                          *
-*                                                                      *
-*  Under no circumstances and under no legal theory, whether tort      *
-*  (including negligence), contract, or otherwise, shall any           *
-*  Contributor, or anyone who distributes Covered Software as          *
-*  permitted above, be liable to You for any direct, indirect,         *
-*  special, incidental, or consequential damages of any character      *
-*  including, without limitation, damages for lost profits, loss of    *
-*  goodwill, work stoppage, computer failure or malfunction, or any    *
-*  and all other commercial damages or losses, even if such party      *
-*  shall have been informed of the possibility of such damages. This   *
-*  limitation of liability shall not apply to liability for death or   *
-*  personal injury resulting from such party's negligence to the       *
-*  extent applicable law prohibits such limitation. Some               *
-*  jurisdictions do not allow the exclusion or limitation of           *
-*  incidental or consequential damages, so this exclusion and          *
-*  limitation may not apply to You.                                    *
-*                                                                      *
-************************************************************************
-
-8. Litigation
--------------
-
-Any litigation relating to this License may be brought only in the
-courts of a jurisdiction where the defendant maintains its principal
-place of business and such litigation shall be governed by laws of that
-jurisdiction, without reference to its conflict-of-law provisions.
-Nothing in this Section shall prevent a party's ability to bring
-cross-claims or counter-claims.
-
-9. Miscellaneous
-----------------
-
-This License represents the complete agreement concerning the subject
-matter hereof. If any provision of this License is held to be
-unenforceable, such provision shall be reformed only to the extent
-necessary to make it enforceable. Any law or regulation which provides
-that the language of a contract shall be construed against the drafter
-shall not be used to construe this License against a Contributor.
-
-10. Versions of the License
----------------------------
-
-10.1. New Versions
-
-Mozilla Foundation is the license steward. Except as provided in Section
-10.3, no one other than the license steward has the right to modify or
-publish new versions of this License. Each version will be given a
-distinguishing version number.
-
-10.2. Effect of New Versions
-
-You may distribute the Covered Software under the terms of the version
-of the License under which You originally received the Covered Software,
-or under the terms of any subsequent version published by the license
-steward.
-
-10.3. Modified Versions
-
-If you create software not governed by this License, and you want to
-create a new license for such software, you may create and use a
-modified version of this License if you rename the license and remove
-any references to the name of the license steward (except to note that
-such modified license differs from this License).
-
-10.4. Distributing Source Code Form that is Incompatible With Secondary
-Licenses
-
-If You choose to distribute Source Code Form that is Incompatible With
-Secondary Licenses under the terms of this version of the License, the
-notice described in Exhibit B of this License must be attached.
-
-Exhibit A - Source Code Form License Notice
--------------------------------------------
-
-  This Source Code Form is subject to the terms of the Mozilla Public
-  License, v. 2.0. If a copy of the MPL was not distributed with this
-  file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-If it is not possible or desirable to put the notice in a particular
-file, then You may include the notice in a location (such as a LICENSE
-file in a relevant directory) where a recipient would be likely to look
-for such a notice.
-
-You may add additional accurate notices of copyright ownership.
-
-Exhibit B - "Incompatible With Secondary Licenses" Notice
----------------------------------------------------------
-
-  This Source Code Form is "Incompatible With Secondary Licenses", as
-  defined by the Mozilla Public License, v. 2.0.
diff --git a/cmake/FindEigen3.cmake b/cmake/FindEigen3.cmake
deleted file mode 100644
index bbad2298..00000000
--- a/cmake/FindEigen3.cmake
+++ /dev/null
@@ -1,106 +0,0 @@
-# - Try to find Eigen3 lib
-#
-# This module supports requiring a minimum version, e.g. you can do
-#   find_package(Eigen3 3.1.2)
-# to require version 3.1.2 or newer of Eigen3.
-#
-# Once done this will define
-#
-#  EIGEN3_FOUND - system has eigen lib with correct version
-#  EIGEN3_INCLUDE_DIR - the eigen include directory
-#  EIGEN3_VERSION - eigen version
-#
-# This module reads hints about search locations from 
-# the following enviroment variables:
-#
-# EIGEN3_ROOT
-# EIGEN3_ROOT_DIR
-
-# Copyright (c) 2006, 2007 Montel Laurent, <montel@kde.org>
-# Copyright (c) 2008, 2009 Gael Guennebaud, <g.gael@free.fr>
-# Copyright (c) 2009 Benoit Jacob <jacob.benoit.1@gmail.com>
-# Redistribution and use is allowed according to the terms of the 2-clause BSD license.
-
-if(NOT Eigen3_FIND_VERSION)
-  if(NOT Eigen3_FIND_VERSION_MAJOR)
-    set(Eigen3_FIND_VERSION_MAJOR 2)
-  endif(NOT Eigen3_FIND_VERSION_MAJOR)
-  if(NOT Eigen3_FIND_VERSION_MINOR)
-    set(Eigen3_FIND_VERSION_MINOR 91)
-  endif(NOT Eigen3_FIND_VERSION_MINOR)
-  if(NOT Eigen3_FIND_VERSION_PATCH)
-    set(Eigen3_FIND_VERSION_PATCH 0)
-  endif(NOT Eigen3_FIND_VERSION_PATCH)
-
-  set(Eigen3_FIND_VERSION "${Eigen3_FIND_VERSION_MAJOR}.${Eigen3_FIND_VERSION_MINOR}.${Eigen3_FIND_VERSION_PATCH}")
-endif(NOT Eigen3_FIND_VERSION)
-
-macro(_eigen3_check_version)
-  file(READ "${EIGEN3_INCLUDE_DIR}/Eigen/src/Core/util/Macros.h" _eigen3_version_header)
-
-  string(REGEX MATCH "define[ \t]+EIGEN_WORLD_VERSION[ \t]+([0-9]+)" _eigen3_world_version_match "${_eigen3_version_header}")
-  set(EIGEN3_WORLD_VERSION "${CMAKE_MATCH_1}")
-  string(REGEX MATCH "define[ \t]+EIGEN_MAJOR_VERSION[ \t]+([0-9]+)" _eigen3_major_version_match "${_eigen3_version_header}")
-  set(EIGEN3_MAJOR_VERSION "${CMAKE_MATCH_1}")
-  string(REGEX MATCH "define[ \t]+EIGEN_MINOR_VERSION[ \t]+([0-9]+)" _eigen3_minor_version_match "${_eigen3_version_header}")
-  set(EIGEN3_MINOR_VERSION "${CMAKE_MATCH_1}")
-
-  set(EIGEN3_VERSION ${EIGEN3_WORLD_VERSION}.${EIGEN3_MAJOR_VERSION}.${EIGEN3_MINOR_VERSION})
-  if(${EIGEN3_VERSION} VERSION_LESS ${Eigen3_FIND_VERSION})
-    set(EIGEN3_VERSION_OK FALSE)
-  else(${EIGEN3_VERSION} VERSION_LESS ${Eigen3_FIND_VERSION})
-    set(EIGEN3_VERSION_OK TRUE)
-  endif(${EIGEN3_VERSION} VERSION_LESS ${Eigen3_FIND_VERSION})
-
-  if(NOT EIGEN3_VERSION_OK)
-
-    message(STATUS "Eigen3 version ${EIGEN3_VERSION} found in ${EIGEN3_INCLUDE_DIR}, "
-                   "but at least version ${Eigen3_FIND_VERSION} is required")
-  endif(NOT EIGEN3_VERSION_OK)
-endmacro(_eigen3_check_version)
-
-if (EIGEN3_INCLUDE_DIR)
-
-  # in cache already
-  _eigen3_check_version()
-  set(EIGEN3_FOUND ${EIGEN3_VERSION_OK})
-
-else (EIGEN3_INCLUDE_DIR)
-
-  # search first if an Eigen3Config.cmake is available in the system,
-  # if successful this would set EIGEN3_INCLUDE_DIR and the rest of
-  # the script will work as usual
-  find_package(Eigen3 ${Eigen3_FIND_VERSION} NO_MODULE QUIET)
-
-  if(NOT EIGEN3_INCLUDE_DIR)
-    find_path(EIGEN3_INCLUDE_DIR NAMES signature_of_eigen3_matrix_library
-      HINTS
-      ENV EIGEN3_ROOT 
-      ENV EIGEN3_ROOT_DIR
-      PATHS
-      ${CMAKE_INSTALL_PREFIX}/include
-      ${KDE4_INCLUDE_DIR}
-      PATH_SUFFIXES eigen3 eigen
-    )
-  endif(NOT EIGEN3_INCLUDE_DIR)
-  
-  if(EIGEN3_INCLUDE_DIR)
-    _eigen3_check_version()
-  endif(EIGEN3_INCLUDE_DIR)
-
-  include(FindPackageHandleStandardArgs)
-  find_package_handle_standard_args(Eigen3 DEFAULT_MSG EIGEN3_INCLUDE_DIR EIGEN3_VERSION_OK)
-
-  mark_as_advanced(EIGEN3_INCLUDE_DIR)
-
-endif(EIGEN3_INCLUDE_DIR)
-
-if(EIGEN3_FOUND)
-    add_definitions(
-        -DEIGEN_MPL2_ONLY=1
-        -DEIGEN_MAX_CPP_VER=17
-        -DEIGEN_DEFAULT_DENSE_INDEX_TYPE=int
-        -DEIGEN_NO_DEBUG=1
-        -DEIGEN_DONT_PARALLELIZE=1
-    )
-endif()
diff --git a/filter-kalman/CMakeLists.txt b/filter-kalman/CMakeLists.txt
deleted file mode 100644
index b6f8100e..00000000
--- a/filter-kalman/CMakeLists.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-find_package(Eigen3 QUIET)
-if(EIGEN3_FOUND)
-    otr_module(filter-kalman)
-    target_include_directories(opentrack-filter-kalman SYSTEM PUBLIC ${EIGEN3_INCLUDE_DIR})
-endif()
diff --git a/filter-kalman/ftnoir_kalman_filtercontrols.ui b/filter-kalman/ftnoir_kalman_filtercontrols.ui
deleted file mode 100644
index 83ee8e96..00000000
--- a/filter-kalman/ftnoir_kalman_filtercontrols.ui
+++ /dev/null
@@ -1,170 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<ui version="4.0">
- <class>KalmanUICdialog_kalman</class>
- <widget class="QWidget" name="KalmanUICdialog_kalman">
-  <property name="windowModality">
-   <enum>Qt::NonModal</enum>
-  </property>
-  <property name="geometry">
-   <rect>
-    <x>0</x>
-    <y>0</y>
-    <width>438</width>
-    <height>141</height>
-   </rect>
-  </property>
-  <property name="sizePolicy">
-   <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
-    <horstretch>0</horstretch>
-    <verstretch>0</verstretch>
-   </sizepolicy>
-  </property>
-  <property name="windowTitle">
-   <string>Kalman settings</string>
-  </property>
-  <property name="windowIcon">
-   <iconset resource="../gui/opentrack-res.qrc">
-    <normaloff>:/images/filter-16.png</normaloff>:/images/filter-16.png</iconset>
-  </property>
-  <property name="layoutDirection">
-   <enum>Qt::LeftToRight</enum>
-  </property>
-  <property name="autoFillBackground">
-   <bool>false</bool>
-  </property>
-  <property name="styleSheet">
-   <string notr="true"/>
-  </property>
-  <layout class="QVBoxLayout" name="verticalLayout">
-   <item>
-    <widget class="QGroupBox" name="groupBox_2">
-     <property name="title">
-      <string>Measurement noise</string>
-     </property>
-     <layout class="QGridLayout" name="gridLayout_2">
-      <item row="0" column="0">
-       <widget class="QLabel" name="label">
-        <property name="text">
-         <string>Rotation</string>
-        </property>
-       </widget>
-      </item>
-      <item row="0" column="1">
-       <widget class="QSlider" name="noiseRotSlider">
-        <property name="maximum">
-         <number>400</number>
-        </property>
-        <property name="singleStep">
-         <number>1</number>
-        </property>
-        <property name="pageStep">
-         <number>100</number>
-        </property>
-        <property name="tracking">
-         <bool>true</bool>
-        </property>
-        <property name="orientation">
-         <enum>Qt::Horizontal</enum>
-        </property>
-        <property name="invertedAppearance">
-         <bool>false</bool>
-        </property>
-        <property name="tickPosition">
-         <enum>QSlider::TicksBelow</enum>
-        </property>
-        <property name="tickInterval">
-         <number>100</number>
-        </property>
-       </widget>
-      </item>
-      <item row="1" column="0">
-       <widget class="QLabel" name="label_4">
-        <property name="text">
-         <string>Position</string>
-        </property>
-       </widget>
-      </item>
-      <item row="1" column="1">
-       <widget class="QSlider" name="noisePosSlider">
-        <property name="maximum">
-         <number>400</number>
-        </property>
-        <property name="pageStep">
-         <number>100</number>
-        </property>
-        <property name="orientation">
-         <enum>Qt::Horizontal</enum>
-        </property>
-        <property name="tickPosition">
-         <enum>QSlider::TicksBelow</enum>
-        </property>
-        <property name="tickInterval">
-         <number>100</number>
-        </property>
-       </widget>
-      </item>
-      <item row="0" column="2">
-       <widget class="QLabel" name="noiseRotLabel">
-        <property name="minimumSize">
-         <size>
-          <width>65</width>
-          <height>0</height>
-         </size>
-        </property>
-        <property name="text">
-         <string>°</string>
-        </property>
-       </widget>
-      </item>
-      <item row="1" column="2">
-       <widget class="QLabel" name="noisePosLabel">
-        <property name="minimumSize">
-         <size>
-          <width>65</width>
-          <height>0</height>
-         </size>
-        </property>
-        <property name="text">
-         <string>-</string>
-        </property>
-       </widget>
-      </item>
-     </layout>
-    </widget>
-   </item>
-   <item>
-    <widget class="QDialogButtonBox" name="buttonBox">
-     <property name="standardButtons">
-      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
-     </property>
-    </widget>
-   </item>
-  </layout>
- </widget>
- <resources>
-  <include location="../gui/opentrack-res.qrc"/>
- </resources>
- <connections/>
- <designerdata>
-  <property name="gridDeltaX">
-   <number>10</number>
-  </property>
-  <property name="gridDeltaY">
-   <number>10</number>
-  </property>
-  <property name="gridSnapX">
-   <bool>false</bool>
-  </property>
-  <property name="gridSnapY">
-   <bool>false</bool>
-  </property>
-  <property name="gridVisible">
-   <bool>true</bool>
-  </property>
- </designerdata>
- <slots>
-  <slot>startEngineClicked()</slot>
-  <slot>stopEngineClicked()</slot>
-  <slot>cameraSettingsClicked()</slot>
- </slots>
-</ui>
diff --git a/filter-kalman/kalman.cpp b/filter-kalman/kalman.cpp
deleted file mode 100644
index 1960e0f6..00000000
--- a/filter-kalman/kalman.cpp
+++ /dev/null
@@ -1,323 +0,0 @@
-/* Copyright (c) 2016 Michael Welter <mw.pub@welter-4d.de>
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- */
-#include "kalman.h"
-#include <cmath>
-#include <QDebug>
-
-void KalmanFilter::init()
-{
-    // allocate and initialize matrices
-    measurement_noise_cov = MeasureMatrix::Zero();
-    process_noise_cov = StateMatrix::Zero();
-    state_cov = StateMatrix::Zero();
-    state_cov_prior = StateMatrix::Zero();
-    transition_matrix = StateMatrix::Zero();
-    measurement_matrix = StateToMeasureMatrix::Zero();
-    kalman_gain = MeasureToStateMatrix::Zero();
-    // initialize state variables
-    state = StateVector::Zero();
-    state_prior = StateVector::Zero();
-    innovation = PoseVector::Zero();
-}
-
-
-void KalmanFilter::time_update()
-{
-    state_prior     = transition_matrix * state;
-    state_cov_prior = transition_matrix * state_cov * transition_matrix.transpose() + process_noise_cov;
-}
-
-
-void KalmanFilter::measurement_update(const PoseVector &measurement)
-{
-    MeasureMatrix tmp     = measurement_matrix * state_cov_prior * measurement_matrix.transpose() + measurement_noise_cov;
-    MeasureMatrix tmp_inv = tmp.inverse();
-    kalman_gain = state_cov_prior * measurement_matrix.transpose() * tmp_inv;
-    innovation = measurement - measurement_matrix * state_prior;
-    state     = state_prior + kalman_gain * innovation;
-    state_cov = state_cov_prior - kalman_gain * measurement_matrix * state_cov_prior;
-}
-
-
-
-void KalmanProcessNoiseScaler::init()
-{
-    base_cov = StateMatrix::Zero(NUM_STATE_DOF, NUM_STATE_DOF);
-    innovation_cov_estimate = MeasureMatrix::Zero(NUM_MEASUREMENT_DOF, NUM_MEASUREMENT_DOF);
-}
-
-
-/* Uses
-    innovation, measurement_matrix, measurement_noise_cov, and state_cov_prior
-   found in KalmanFilter. It sets
-    process_noise_cov
-*/
-void KalmanProcessNoiseScaler::update(KalmanFilter &kf, double dt)
-{
-    MeasureMatrix ddT = kf.innovation * kf.innovation.transpose();
-    double f = dt / (dt + settings::adaptivity_window_length);
-    innovation_cov_estimate =
-        f * ddT + (1. - f) * innovation_cov_estimate;
-
-    double T1 = (innovation_cov_estimate - kf.measurement_noise_cov).trace();
-    double T2 = (kf.measurement_matrix * kf.state_cov_prior * kf.measurement_matrix.transpose()).trace();
-    double alpha = 0.001;
-    if (T2 > 0. && T1 > 0.)
-    {
-        alpha = T1 / T2;
-        alpha = std::sqrt(alpha);
-        alpha = std::fmin(1000., std::fmax(0.001, alpha));
-    }
-    kf.process_noise_cov = alpha * base_cov;
-    //qDebug() << "alpha = " << alpha;
-}
-
-void DeadzoneFilter::reset()
-{
-    last_output = PoseVector::Zero();
-}
-
-PoseVector DeadzoneFilter::filter(const PoseVector &input)
-{
-    PoseVector out;
-    for (int i = 0; i < input.rows(); ++i)
-    {
-        const double dz = dz_size[i];
-        if (dz > 0.)
-        {
-            const double delta = input[i] - last_output[i];
-            const double f = std::pow(std::fabs(delta) / dz, settings::deadzone_exponent);
-            const double response = f / (f + 1.) * delta;
-            out[i] = last_output[i] + response;
-        }
-        else
-            out[i] = input[i];
-        last_output[i] = out[i];
-    }
-    return out;
-}
-
-
-void kalman::fill_transition_matrix(double dt)
-{
-    for (int i = 0; i < 6; ++i)
-    {
-        kf.transition_matrix(i, i + 6) = dt;
-    }
-}
-
-void kalman::fill_process_noise_cov_matrix(StateMatrix &target, double dt) const
-{
-    // This model is like movement at fixed velocity plus superimposed
-    // brownian motion. Unlike standard models for tracking of objects
-    // with a very well predictable trajectory (e.g.
-    // https://en.wikipedia.org/wiki/Kalman_filter#Example_application.2C_technical)
-    double sigma_pos = settings::process_sigma_pos;
-    double sigma_angle = settings::process_sigma_rot;
-    double a_pos = sigma_pos * sigma_pos * dt;
-    double a_ang = sigma_angle * sigma_angle * dt;
-    constexpr double b = 20;
-    constexpr double c = 1.;
-    for (int i = 0; i < 3; ++i)
-    {
-        target(i, i) = a_pos;
-        target(i, i + 6) = a_pos * c;
-        target(i + 6, i) = a_pos * c;
-        target(i + 6, i + 6) = a_pos * b;
-    }
-    for (int i = 3; i < 6; ++i)
-    {
-        target(i, i) = a_ang;
-        target(i, i + 6) = a_ang * c;
-        target(i + 6, i) = a_ang * c;
-        target(i + 6, i + 6) = a_ang * b;
-    }
-}
-
-
-PoseVector kalman::do_kalman_filter(const PoseVector &input, double dt, bool new_input)
-{
-    if (new_input)
-    {
-        dt = dt_since_last_input;
-        fill_transition_matrix(dt);
-        fill_process_noise_cov_matrix(kf_adaptive_process_noise_cov.base_cov, dt);
-        kf_adaptive_process_noise_cov.update(kf, dt);
-        kf.time_update();
-        kf.measurement_update(input);
-    }
-    return kf.state.head(6);
-}
-
-
-
-kalman::kalman()
-{
-    reset();
-}
-
-// The original code was written by Donovan Baarda <abo@minkirri.apana.org.au>
-// https://sourceforge.net/p/facetracknoir/discussion/1150909/thread/418615e1/?limit=25#af75/084b
-void kalman::reset()
-{
-    kf.init();
-    kf_adaptive_process_noise_cov.init();
-    for (int i = 0; i < 6; ++i)
-    {
-        // initialize part of the transition matrix that do not change.
-        kf.transition_matrix(i, i) = 1.;
-        kf.transition_matrix(i + 6, i + 6) = 1.;
-        // "extract" positions, i.e. the first 6 state dof.
-        kf.measurement_matrix(i, i) = 1.;
-    }
-
-    double noise_variance_position = settings::map_slider_value(s.noise_pos_slider_value);
-    double noise_variance_angle = settings::map_slider_value(s.noise_rot_slider_value);
-    for (int i = 0; i < 3; ++i)
-    {
-        kf.measurement_noise_cov(i    , i    ) = noise_variance_position;
-        kf.measurement_noise_cov(i + 3, i + 3) = noise_variance_angle;
-    }
-
-    fill_transition_matrix(0.03);
-    fill_process_noise_cov_matrix(kf_adaptive_process_noise_cov.base_cov, 0.03);
-
-    kf.process_noise_cov = kf_adaptive_process_noise_cov.base_cov;
-    kf.state_cov = kf.process_noise_cov;
-
-    for (int i = 0; i < 6; i++) {
-        last_input[i] = 0;
-    }
-    dt_since_last_input = 0;
-
-    prev_slider_pos[0] = s.noise_pos_slider_value;
-    prev_slider_pos[1] = s.noise_rot_slider_value;
-
-    dz_filter.reset();
-}
-
-
-void kalman::filter(const double* input_, double *output_)
-{
-    // almost non-existent cost, so might as well ...
-    Eigen::Map<const PoseVector> input(input_, PoseVector::RowsAtCompileTime, 1);
-    Eigen::Map<PoseVector> output(output_, PoseVector::RowsAtCompileTime, 1);
-
-    if (!(prev_slider_pos[0] == s.noise_pos_slider_value &&
-          prev_slider_pos[1] == s.noise_rot_slider_value))
-    {
-        reset();
-    }
-
-    // Start the timer on first filter evaluation.
-    if (first_run)
-    {
-        timer.start();
-        first_run = false;
-        return;
-    }
-
-    // Note this is a terrible way to detect when there is a new
-    // frame of tracker input, but it is the best we have.
-    bool new_input = input.cwiseNotEqual(last_input).any();
-
-    // Get the time in seconds since last run and restart the timer.
-    const double dt = timer.elapsed_seconds();
-    dt_since_last_input += dt;
-    timer.start();
-
-    output = do_kalman_filter(input, dt, new_input);
-
-    {
-        // Compute deadzone size base on estimated state variance.
-        // Given a constant input plus measurement noise, KF should converge to the true input.
-        // This works well. That is the output pose becomes very still afte some time.
-        // The QScaling adaptive filter makes the state cov vary depending on the estimated noise
-        // and the measured noise of the innovation sequence. After a sudden movement it peaks
-        // and then decays asymptotically to some constant value taken in stationary state. 
-        // We can use this to calculate the size of the deadzone, so that in the stationary state the
-        // deadzone size is small. Thus the tracking error due to the dz-filter becomes also small.
-        PoseVector variance = kf.state_cov.diagonal().head(6);
-        dz_filter.dz_size = variance.cwiseSqrt() * settings::deadzone_scale;
-    }
-    output = dz_filter.filter(output);
-
-    if (new_input)
-    {
-        dt_since_last_input = 0;
-        last_input = input;
-    }
-}
-
-
-
-dialog_kalman::dialog_kalman()
-    : filter(nullptr)
-{
-    ui.setupUi(this);
-    connect(ui.buttonBox, SIGNAL(accepted()), this, SLOT(doOK()));
-    connect(ui.buttonBox, SIGNAL(rejected()), this, SLOT(doCancel()));
-
-    tie_setting(s.noise_rot_slider_value, ui.noiseRotSlider);
-    tie_setting(s.noise_pos_slider_value, ui.noisePosSlider);
-
-    connect(&s.noise_rot_slider_value, SIGNAL(valueChanged(const slider_value&)), this, SLOT(updateLabels(const slider_value&)));
-    connect(&s.noise_pos_slider_value, SIGNAL(valueChanged(const slider_value&)), this, SLOT(updateLabels(const slider_value&)));
-
-    updateLabels(slider_value());
-}
-
-
-void dialog_kalman::updateLabels(const slider_value&)
-{
-    this->ui.noiseRotLabel->setText(
-        QString::number(settings::map_slider_value(s.noise_rot_slider_value), 'f', 3) + "°");
-
-    this->ui.noisePosLabel->setText(
-        QString::number(settings::map_slider_value(s.noise_pos_slider_value), 'f', 3) + " cm");
-}
-
-
-void dialog_kalman::doOK() {
-    s.b->save();
-    close();
-}
-
-
-void dialog_kalman::doCancel()
-{
-    close();
-}
-
-double settings::map_slider_value(const slider_value& v_)
-{
-    const double v = v_;
-#if 0
-    //return std::pow(10., v * 4. - 3.);
-#else
-    constexpr int min_log10 = -3;
-    constexpr int max_log10 = 1;
-    constexpr int num_divisions = max_log10 - min_log10;
-    /* ascii art representation of slider
-          // ----- //  ------//  ------// ------- //   4 divisions
-         -3    -   2         -1        0           1    power of 10
-                   |      |
-                   |      f + left_side_log10
-                   |
-                   left_side_log10
-        */
-    const int k = int(v * num_divisions); // in which division are we?!
-    const double f = v * num_divisions - k; // where in the division are we?!
-    const double ff = f * 9. + 1.;
-    const double multiplier = int(ff * 10.) / 10.;
-    const int left_side_log10 = min_log10 + k;
-    const double val = std::pow(10., left_side_log10) * multiplier;
-    return val;
-#endif
-}
-
-OPENTRACK_DECLARE_FILTER(kalman, dialog_kalman, kalmanDll)
diff --git a/filter-kalman/kalman.h b/filter-kalman/kalman.h
deleted file mode 100644
index 1e6e2ac4..00000000
--- a/filter-kalman/kalman.h
+++ /dev/null
@@ -1,159 +0,0 @@
-#pragma once
-/* Copyright (c) 2016 Michael Welter <mw.pub@welter-4d.de>
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- */
-
-#include "compat/timer.hpp"
-#include "api/plugin-api.hpp"
-#include "options/options.hpp"
-using namespace options;
-
-// Eigen can't check for SSE3 on MSVC
-#if defined _MSC_VER && defined __SSE2__
-#   define EIGEN_VECTORIZE_SSE3
-// this hardware is 10 years old
-#   define EIGEN_VECTORIZE_SSE4_1
-#   define EIGEN_VECTORIZE_SSE4_2
-#endif
-
-// nodiscard for placement new
-#ifdef _MSC_VER
-#   pragma warning(push)
-#   pragma warning(disable : 4834)
-#endif
-
-#include <Eigen/Core>
-#include <Eigen/LU>
-
-#ifdef _MSC_VER
-#   pragma warning(pop)
-#endif
-
-#include "ui_ftnoir_kalman_filtercontrols.h"
-#include <QString>
-#include <QWidget>
-
-static constexpr int NUM_STATE_DOF = 12;
-static constexpr int NUM_MEASUREMENT_DOF = 6;
-// These vectors are compile time fixed size, stack allocated
-using StateToMeasureMatrix = Eigen::Matrix<double, NUM_MEASUREMENT_DOF, NUM_STATE_DOF>;
-using StateMatrix = Eigen::Matrix<double, NUM_STATE_DOF, NUM_STATE_DOF>;
-using MeasureToStateMatrix = Eigen::Matrix<double, NUM_STATE_DOF, NUM_MEASUREMENT_DOF>;
-using MeasureMatrix = Eigen::Matrix<double, NUM_MEASUREMENT_DOF, NUM_MEASUREMENT_DOF>;
-using StateVector = Eigen::Matrix<double, NUM_STATE_DOF, 1>;
-using PoseVector = Eigen::Matrix<double, NUM_MEASUREMENT_DOF, 1>;
-
-struct KalmanFilter
-{
-    MeasureMatrix
-        measurement_noise_cov;
-    StateMatrix
-        process_noise_cov,
-        state_cov,
-        state_cov_prior,
-        transition_matrix;
-    MeasureToStateMatrix
-        kalman_gain;
-    StateToMeasureMatrix
-        measurement_matrix;
-    StateVector
-        state,
-        state_prior;
-    PoseVector
-        innovation;
-
-    void init();
-    void time_update();
-    void measurement_update(const PoseVector &measurement);
-};
-
-struct KalmanProcessNoiseScaler
-{
-    MeasureMatrix
-        innovation_cov_estimate;
-    StateMatrix
-        base_cov; // baseline (unscaled) process noise covariance matrix
-    void init();
-    void update(KalmanFilter &kf, double dt);
-};
-
-
-struct DeadzoneFilter
-{
-    PoseVector last_output { PoseVector::Zero() },
-               dz_size     { PoseVector::Zero() };
-
-    DeadzoneFilter() = default;
-    void reset();
-    PoseVector filter(const PoseVector &input);
-};
-
-
-struct settings : opts {
-    value<slider_value> noise_rot_slider_value { b, "noise-rotation-slider", { .5, 0, 1 } };
-    value<slider_value> noise_pos_slider_value { b, "noise-position-slider", { .5, 0, 1 } };
-
-    static constexpr double adaptivity_window_length = 0.25; // seconds
-    static constexpr double deadzone_scale = 8;
-    static constexpr double deadzone_exponent = 2.0;
-    static constexpr double process_sigma_pos = 0.5;
-    static constexpr double process_sigma_rot = 0.5;
-
-    static double map_slider_value(const slider_value &v);
-
-    settings() : opts("kalman-filter") {}
-};
-
-class kalman : public IFilter
-{
-    PoseVector do_kalman_filter(const PoseVector &input, double dt, bool new_input);
-    void fill_transition_matrix(double dt);
-    void fill_process_noise_cov_matrix(StateMatrix &target, double dt) const;
-public:
-    kalman();
-    void reset();
-    void filter(const double *input, double *output) override;
-    void center() override { reset(); }
-    module_status initialize() override { return status_ok(); }
-
-    double dt_since_last_input;
-    PoseVector last_input;
-    KalmanFilter kf;
-    KalmanProcessNoiseScaler kf_adaptive_process_noise_cov;
-    DeadzoneFilter dz_filter;
-    settings s;
-    slider_value prev_slider_pos[2] {
-        *s.noise_pos_slider_value,
-        *s.noise_rot_slider_value,
-    };
-    Timer timer;
-
-    bool first_run = true;
-};
-
-class kalmanDll : public Metadata
-{
-    Q_OBJECT
-
-    QString name() override { return tr("Kalman"); }
-    QIcon icon() override { return QIcon(":/images/filter-16.png"); }
-};
-
-class dialog_kalman: public IFilterDialog
-{
-    Q_OBJECT
-public:
-    dialog_kalman();
-    Ui::KalmanUICdialog_kalman ui;
-    void register_filter(IFilter*) override {}
-    void unregister_filter() override {}
-    settings s;
-    kalman *filter;
-public slots:
-    void doOK();
-    void doCancel();
-    void updateLabels(const slider_value&);
-};
diff --git a/filter-kalman/kalman_simulation.py b/filter-kalman/kalman_simulation.py
deleted file mode 100644
index 3e792212..00000000
--- a/filter-kalman/kalman_simulation.py
+++ /dev/null
@@ -1,76 +0,0 @@
-# -*- coding: utf-8 -*-
-import numpy as np
-import numpy.matlib as mt
-import matplotlib.pyplot as plt
-
-M = 2
-N = 500
-dt = 1.0 / 30.
-sigma_measure = 0.1
-# x = 1/2 a t**2
-# assume x = 0.5 in 0.5, i.e. head turns half maximal movement range in 0.5 sec.
-# so a = 2 x / t**2 =  4.0
-sigma_accel   = 4.0 
-
-x = np.zeros(N, dtype = np.float)
-x[N/3:] = 1.0 # step input
-measurement = x.copy()
-measurement += np.random.normal(0., sigma_measure, N)
-
-A = np.matrix([
-    [ 1. , dt ],
-    [ 0. , 1. ]
-])
-
-R = np.matrix([[ sigma_measure**2 ]])
-
-dv = sigma_accel * dt
-dp = sigma_accel * 0.5 * dt * dt
-Q = np.matrix([
-    [ dp*dp, dp*dv ],
-    [ dv*dp, dv*dv ]
-])
-
-H = np.matrix([
-    [ 1., 0. ],
-])
-
-I = mt.identity(M, dtype = np.float)
-
-def arrayOfMatrices(n, shape):
-    return np.asarray([mt.zeros(shape, dtype = np.float) for i in xrange(n)])
-
-# Base on the scipy-cookbook http://scipy-cookbook.readthedocs.io/items/KalmanFiltering.html
-sz_state = (M, 1)
-sz_cov   = (M, M)
-sz_K     = (M, 1)
-xhat= arrayOfMatrices(N, sz_state)      # a posteri estimate of x
-P=arrayOfMatrices(N, sz_cov)         # a posteri error estimate
-xhatminus=arrayOfMatrices(N, sz_state) # a priori estimate of x
-Pminus=arrayOfMatrices(N, sz_cov)    # a priori error estimate
-K=arrayOfMatrices(N, sz_K)         # gain or blending factor
-
-P[0] = mt.ones((M,M)) * 100
-xhat[0] = measurement[0]
-
-for k in range(1,N):
-    # time update
-    xhatminus[k] = A * xhat[k-1]
-    Pminus[k]    = A * P[k-1] * A.T + Q
-
-    # measurement update
-    K[k] = Pminus[k] * H.T * np.linalg.inv( H * Pminus[k] * H.T + R )
-    xhat[k] = xhatminus[k] + K[k] * (measurement[k] - H * xhatminus[k])
-    P[k] = ( I - K[k]*H ) * Pminus[k]
-    
-t = np.arange(N) * dt
-plt.figure()
-plt.subplot(2,1,1)
-plt.plot(t, measurement,'k+',label='noisy measurements')
-plt.plot(t, xhat[:,0,0],'b-',label='position estimate')
-plt.plot(t, x, 'r-', label='ground truth')
-
-plt.subplot(2,1,2)
-plt.plot(t, xhat[:,1,0],'g-',label='velocity estimate')
-
-plt.show()
diff --git a/filter-kalman/lang/nl_NL.ts b/filter-kalman/lang/nl_NL.ts
deleted file mode 100644
index e3c61bbb..00000000
--- a/filter-kalman/lang/nl_NL.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE TS>
-<TS version="2.1" language="nl_NL">
-<context>
-    <name>KalmanUICdialog_kalman</name>
-    <message>
-        <source>Kalman settings</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>Measurement noise</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>Rotation</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>Position</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>°</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>-</source>
-        <translation type="unfinished"></translation>
-    </message>
-</context>
-<context>
-    <name>kalmanDll</name>
-    <message>
-        <source>Kalman</source>
-        <translation type="unfinished"></translation>
-    </message>
-</context>
-</TS>
diff --git a/filter-kalman/lang/ru_RU.ts b/filter-kalman/lang/ru_RU.ts
deleted file mode 100644
index 6fda97be..00000000
--- a/filter-kalman/lang/ru_RU.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE TS>
-<TS version="2.1" language="ru_RU">
-<context>
-    <name>KalmanUICdialog_kalman</name>
-    <message>
-        <source>Kalman settings</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>Measurement noise</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>Rotation</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>Position</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>°</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>-</source>
-        <translation type="unfinished"></translation>
-    </message>
-</context>
-<context>
-    <name>kalmanDll</name>
-    <message>
-        <source>Kalman</source>
-        <translation type="unfinished"></translation>
-    </message>
-</context>
-</TS>
diff --git a/filter-kalman/lang/stub.ts b/filter-kalman/lang/stub.ts
deleted file mode 100644
index 29fae5c0..00000000
--- a/filter-kalman/lang/stub.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE TS>
-<TS version="2.1">
-<context>
-    <name>KalmanUICdialog_kalman</name>
-    <message>
-        <source>Kalman settings</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>Measurement noise</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>Rotation</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>Position</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>°</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>-</source>
-        <translation type="unfinished"></translation>
-    </message>
-</context>
-<context>
-    <name>kalmanDll</name>
-    <message>
-        <source>Kalman</source>
-        <translation type="unfinished"></translation>
-    </message>
-</context>
-</TS>
diff --git a/filter-kalman/lang/zh_CN.ts b/filter-kalman/lang/zh_CN.ts
deleted file mode 100644
index d8de6cf2..00000000
--- a/filter-kalman/lang/zh_CN.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE TS>
-<TS version="2.1" language="zh_CN">
-<context>
-    <name>KalmanUICdialog_kalman</name>
-    <message>
-        <source>Kalman settings</source>
-        <translation>Kalman 设置</translation>
-    </message>
-    <message>
-        <source>Measurement noise</source>
-        <translation type="unfinished">衡量噪声</translation>
-    </message>
-    <message>
-        <source>Rotation</source>
-        <translation>旋转</translation>
-    </message>
-    <message>
-        <source>Position</source>
-        <translation>方位</translation>
-    </message>
-    <message>
-        <source>°</source>
-        <translation></translation>
-    </message>
-    <message>
-        <source>-</source>
-        <translation type="unfinished"></translation>
-    </message>
-</context>
-<context>
-    <name>kalmanDll</name>
-    <message>
-        <source>Kalman</source>
-        <translation type="unfinished"></translation>
-    </message>
-</context>
-</TS>