commit 03c0d309284641602ef55807797a07ad2d23c142
Author: Erwin Nindl <erwin@nindl.net>
Date:   Thu Jun 17 18:26:32 2021 +0200

    initial commit

diff --git a/assignment.pdf b/assignment.pdf
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diff --git a/protocol_buffers_definitions/locatorevents.proto b/protocol_buffers_definitions/locatorevents.proto
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+++ b/protocol_buffers_definitions/locatorevents.proto
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+syntax = "proto2";
+
+package indoors.proto;
+
+enum LocatorEventType
+{
+    BUILDING_LOADED = 0;
+    FLIPMAP_GENERATED = 1;
+    NEW_LOCATOR_LOOP = 2;
+    KALMAN_INITIALIZED = 3;
+}
+
+message LocatorEvent
+{
+    required double t = 1;
+    required LocatorEventType type = 2;
+}
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diff --git a/protocol_buffers_definitions/positions.proto b/protocol_buffers_definitions/positions.proto
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+++ b/protocol_buffers_definitions/positions.proto
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+syntax = "proto2";
+
+package indoors.proto;
+
+enum PositionType {
+    KNN = 0;
+    GROUND_TRUTH = 1;
+    FINAL = 2;
+    KALMAN = 3;
+    SLAM = 4;
+    FLIP = 5;
+    AKF = 6;
+    SLAM_GRID = 7;
+    SLAM_MAP = 9;
+    SLAM_GRAPH = 10;
+    GPS = 11;
+    RADIO_BLE = 12;
+    RADIO_WIFI = 13;
+    RADIO_WIFI_BLE = 14;
+    PROXIMITY = 15;
+    APPLE = 16;
+    SELECTED = 17;
+
+    UNKNOWN = 255;
+}
+
+message GlobalPosition {
+    required double t = 1;
+    required double latitude = 2;
+    required double longitude = 3;
+    optional double accuracy = 4;
+    optional double altitude = 5;
+    optional double altitude_accuracy = 6;
+    optional double speed = 7;
+    optional double speed_accuracy = 8;
+    optional double heading = 9;
+    optional double device_timestamp = 10;
+}
+
+message Position {
+    optional double t = 1 [deprecated=true];
+    optional double x = 2;
+    optional double y = 3;
+    optional int64 floor = 4;
+    optional double sx2 = 5;
+    optional double sy2 = 6;
+    optional double sxy = 7;
+    required PositionType type = 8;
+    optional double accuracy = 9;
+    optional double delay = 10;
+    optional double t_created = 11;
+    optional double t_est = 12;
+    optional PositionType ancestor = 13;
+}
diff --git a/protocol_buffers_definitions/recordings.proto b/protocol_buffers_definitions/recordings.proto
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+syntax = "proto2";
+
+package indoors.proto;
+import "structures.proto";
+import "positions.proto";
+import "sensors.proto";
+import "locatorevents.proto";
+
+message Recording {
+
+    required int64 id = 1;
+    required int64 building = 2;
+    required double created_at = 3;
+    required double start = 4;
+    required double end = 5;
+
+    repeated NamedValue meta = 6;
+
+    repeated Sensor accelerations = 7;
+    repeated Sensor gyros = 8;
+    repeated Sensor magnetics = 9;
+    repeated Sensor rotations = 10 [deprecated = true];
+
+    repeated Pressure pressures = 11;
+    repeated Radio radios = 12;
+    repeated Step steps = 13;
+    repeated Context contexts = 14;
+
+    repeated Position positions = 15;
+    repeated GlobalPosition global_positions = 20;
+
+    repeated Orientation orientations = 21;
+
+    optional int64 parent = 22;
+
+    optional string device = 23;
+    optional string user_name = 24;
+
+    repeated LocatorEvent events = 25;
+}
diff --git a/protocol_buffers_definitions/sensors.proto b/protocol_buffers_definitions/sensors.proto
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+++ b/protocol_buffers_definitions/sensors.proto
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+syntax = "proto2";
+
+package indoors.proto;
+
+message Sensor {
+
+    required double t = 1;
+    required double x = 2;
+    required double y = 3;
+    required double z = 4;
+    optional double accuracy = 5 [default = 1.0];
+
+}
+
+message Context {
+
+    required double t = 1;
+    required int64 identifier = 2;
+    required int64 confidence = 3;
+
+}
+
+message Pressure {
+
+    required double t = 1;
+    required double v = 2;
+
+}
+
+message Step {
+
+    required double t = 1;
+    required double length = 2;
+    required double length_error = 3;
+    optional double heading = 4;
+    optional double heading_error = 5;
+    optional double max_acc = 6;
+
+}
+
+enum RadioType {
+    WIFI = 0;
+    GSM = 1;
+    UKW = 2;
+    BLUETOOTH = 3;
+    BLUETOOTH_LE = 4;
+    IBEACON = 5;
+    UNDEFINED = 6;
+}
+
+message Radio {
+
+    required RadioType type = 1;
+    required double t = 2;
+    required string ssid = 3;
+    required int64 bssid = 4;
+    required int64 rssi = 5;
+
+}
+
+enum OrientationType {
+    DEVICE_ORIENTATION = 0;
+    PDR_ORIENTATION = 1;
+    KALMAN_ORIENTATION = 2;
+    FINAL_ORIENTATION = 3;
+}
+
+message Orientation {
+
+    required OrientationType type = 1;
+    optional double t = 2;
+    optional double roll = 3;
+    optional double roll_var = 4;
+    optional double pitch = 5;
+    optional double pitch_var = 6;
+    optional double yaw = 7;
+    optional double yaw_var = 8;
+
+}
diff --git a/protocol_buffers_definitions/structures.proto b/protocol_buffers_definitions/structures.proto
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+syntax = "proto2";
+
+package indoors.proto;
+
+message NamedValue {
+    required string name = 1;
+    required string value = 2;
+}
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