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fixed latitude / longitude initialization

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This commit is contained in:
Thibault Deckers 2022-06-19 17:00:36 +09:00
parent 538fd94889
commit f8f8e905d9
1 changed files with 15 additions and 15 deletions
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30
lib/panorama.dart
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@ -138,8 +138,8 @@ class Panorama extends StatefulWidget {
class _PanoramaState extends State<Panorama> with SingleTickerProviderStateMixin {
Scene? scene;
Object? surface;
late double latitude;
late double longitude;
late double latitudeRad;
late double longitudeRad;
double latitudeDelta = 0;
double longitudeDelta = 0;
double zoomDelta = 0;
@ -149,7 +149,7 @@ class _PanoramaState extends State<Panorama> with SingleTickerProviderStateMixin
double _dampingFactor = 0.05;
double _animateDirection = 1.0;
late AnimationController _controller;
double screenOrientation = 0.0;
double screenOrientationRad = 0.0;
Vector3 orientation = Vector3(0, radians(90), 0);
StreamSubscription? _orientationSubscription;
StreamSubscription? _screenOrientSubscription;
@ -205,10 +205,10 @@ class _PanoramaState extends State<Panorama> with SingleTickerProviderStateMixin
// auto rotate
longitudeDelta += 0.001 * widget.animSpeed;
// animate vertical rotating
latitude += latitudeDelta * _dampingFactor * widget.sensitivity;
latitudeRad += latitudeDelta * _dampingFactor * widget.sensitivity;
latitudeDelta *= 1 - _dampingFactor * widget.sensitivity;
// animate horizontal rotating
longitude += _animateDirection * longitudeDelta * _dampingFactor * widget.sensitivity;
longitudeRad += _animateDirection * longitudeDelta * _dampingFactor * widget.sensitivity;
longitudeDelta *= 1 - _dampingFactor * widget.sensitivity;
// animate zomming
final double zoom = scene!.camera.zoom + zoomDelta * _dampingFactor;
@ -224,7 +224,7 @@ class _PanoramaState extends State<Panorama> with SingleTickerProviderStateMixin
}
// rotate for screen orientation
Quaternion q = Quaternion.axisAngle(Vector3(0, 0, 1), screenOrientation);
Quaternion q = Quaternion.axisAngle(Vector3(0, 0, 1), screenOrientationRad);
// rotate for device orientation
q *= Quaternion.euler(-orientation.z, -orientation.y, -orientation.x);
// rotate to latitude zero
@ -238,11 +238,11 @@ class _PanoramaState extends State<Panorama> with SingleTickerProviderStateMixin
final double maxLon = radians(widget.maxLongitude);
final double lat = (-o.y).clamp(minLat, maxLat);
final double lon = o.x.clamp(minLon, maxLon);
if (lat + latitude < minLat) latitude = minLat - lat;
if (lat + latitude > maxLat) latitude = maxLat - lat;
if (lat + latitudeRad < minLat) latitudeRad = minLat - lat;
if (lat + latitudeRad > maxLat) latitudeRad = maxLat - lat;
if (maxLon - minLon < math.pi * 2) {
if (lon + longitude < minLon || lon + longitude > maxLon) {
longitude = (lon + longitude < minLon ? minLon : maxLon) - lon;
if (lon + longitudeRad < minLon || lon + longitudeRad > maxLon) {
longitudeRad = (lon + longitudeRad < minLon ? minLon : maxLon) - lon;
// reverse rotation when reaching the boundary
if (widget.animSpeed != 0) {
if (widget.animReverse)
@ -259,9 +259,9 @@ class _PanoramaState extends State<Panorama> with SingleTickerProviderStateMixin
// rotate to longitude zero
q *= Quaternion.axisAngle(Vector3(0, 1, 0), -math.pi * 0.5);
// rotate around the global Y axis
q *= Quaternion.axisAngle(Vector3(0, 1, 0), longitude);
q *= Quaternion.axisAngle(Vector3(0, 1, 0), longitudeRad);
// rotate around the local X axis
q = Quaternion.axisAngle(Vector3(1, 0, 0), -latitude) * q;
q = Quaternion.axisAngle(Vector3(1, 0, 0), -latitudeRad) * q;
o = quaternionToOrientation(q * Quaternion.axisAngle(Vector3(0, 1, 0), math.pi * 0.5));
widget.onViewChanged?.call(degrees(o.x), degrees(-o.y), degrees(o.z));
@ -293,7 +293,7 @@ class _PanoramaState extends State<Panorama> with SingleTickerProviderStateMixin
_screenOrientSubscription?.cancel();
if (widget.sensorControl != SensorControl.None) {
_screenOrientSubscription = motionSensors.screenOrientation.listen((ScreenOrientationEvent event) {
screenOrientation = radians(event.angle!);
screenOrientationRad = radians(event.angle!);
});
}
}
@ -393,8 +393,8 @@ class _PanoramaState extends State<Panorama> with SingleTickerProviderStateMixin
@override
void initState() {
super.initState();
latitude = degrees(widget.latitude);
longitude = degrees(widget.longitude);
latitudeRad = radians(widget.latitude);
longitudeRad = radians(widget.longitude);
_streamController = StreamController<Null>.broadcast();
_stream = _streamController.stream;