Conseguir a pose geoespacial da câmera do dispositivo
Mantenha tudo organizado com as coleções
Salve e categorize o conteúdo com base nas suas preferências.
Depois de configurar o app para usar a API Geospatial, você pode acessar o AREarthManager.CameraGeospatialPose
da câmera do dispositivo. Essa pose, gerenciada em um objeto AREarthManager
, contém as seguintes informações:
- Local, expresso em latitude e longitude
- Altitude
- Uma orientação aproximada da direção em que o usuário está de frente no sistema de coordenadas EUS, com X+ apontando para o leste, Y+ para cima e Z+ para o sul
Verificar o estado do acompanhamento
Os valores geoespaciais são válidos apenas quando AREarthManager.EarthTrackingState
é TrackingState.Tracking
. Encapsule todas as chamadas da API Geospatial em um bloco de controle AREarthManager.EarthTrackingState
.
var earthTrackingState = EarthManager.EarthTrackingState;
if (earthTrackingState == TrackingState.Tracking)
{
// camera_geospatial_pose contains geodetic location, rotation, and
// confidences values.
var cameraGeospatialPose = EarthManager.CameraGeospatialPose;
}
Se AREarthManager.EarthTrackingState
não se tornar TrackingState.Tracking
, AREarthManager.EarthTrackingState
pode ser TrackingState.Limited
ou TrackingState.None
. Se nenhuma dessas condições for verdadeira, marque TrackingState.EarthTrackingState
, que mostra outros estados de erro que podem impedir o rastreamento do objeto AREarthManager
.
Ajustar a pose para ter mais precisão
Quando o dispositivo está na orientação vertical padrão, os ângulos de inclinação (X+) e de rotação (Z+) tendem a ser precisos devido a um alinhamento natural com o rastreamento de RA. No entanto, os ângulos de guinada (Y+) podem variar dependendo da disponibilidade dos dados do VPS e das condições temporais no local. Talvez seja necessário fazer ajustes no app para garantir a precisão.
GeospatialPose.OrientationYawAccuracy
fornece uma estimativa de precisão para os ângulos de guinada (Y+) de um determinado AREarthManager.CameraGeospatialPose
. A precisão de guinada da orientação é um número que descreve o raio, em graus, do nível de confiança do 68º percentil em torno dos ângulos de guinada em GeospatialPose.EunRotation
. Em outras palavras, há 68% de chance de o ângulo de guinada verdadeiro de AREarthManager.CameraGeospatialPose
ser preciso dentro do número de graus retornado por
GeospatialPose.OrientationYawAccuracy
.
Valores maiores indicam menor precisão. Por exemplo, se o ângulo de guinada estimado for 60 graus e a precisão de guinada for 10 graus, haverá 68% de probabilidade de que o ângulo de guinada verdadeiro esteja entre 50 e 70 graus.
A seguir
Exceto em caso de indicação contrária, o conteúdo desta página é licenciado de acordo com a Licença de atribuição 4.0 do Creative Commons, e as amostras de código são licenciadas de acordo com a Licença Apache 2.0. Para mais detalhes, consulte as políticas do site do Google Developers. Java é uma marca registrada da Oracle e/ou afiliadas.
Última atualização 2025-07-14 UTC.
[null,null,["Última atualização 2025-07-14 UTC."],[[["\u003cp\u003eAccess the device camera's geospatial pose, including location, altitude, and orientation, using the \u003ccode\u003eAREarthManager.CameraGeospatialPose\u003c/code\u003e after configuring the Geospatial API.\u003c/p\u003e\n"],["\u003cp\u003eEnsure the \u003ccode\u003eAREarthManager.EarthTrackingState\u003c/code\u003e is in the \u003ccode\u003eTrackingState.Tracking\u003c/code\u003e state before using geospatial values to avoid issues caused by limited or no tracking.\u003c/p\u003e\n"],["\u003cp\u003eAccount for potential inaccuracies in the yaw (Y+) angle of the orientation, especially when the device isn't upright, and utilize \u003ccode\u003eGeospatialPose.OrientationYawAccuracy\u003c/code\u003e to estimate the yaw accuracy.\u003c/p\u003e\n"],["\u003cp\u003eUnderstand that the \u003ccode\u003eGeospatialPose.OrientationYawAccuracy\u003c/code\u003e value represents the radius, in degrees, of the 68th percentile confidence level around the yaw angles, with larger values indicating lower accuracy.\u003c/p\u003e\n"]]],[],null,["# Obtain the device camera's Geospatial pose\n\nOnce you have configured your app's settings to use the Geospatial API, you can obtain the device camera's [`AREarthManager.CameraGeospatialPose`](/ar/reference/unity-arf/class/Google/XR/ARCoreExtensions/AREarthManager#camerageospatialpose). This pose, managed in an [`AREarthManager`](/ar/reference/unity-arf/class/Google/XR/ARCoreExtensions/AREarthManager) object, contains the following information:\n\n- Location, expressed in latitude and longitude\n- Altitude\n- An orientation approximating the direction the user is facing in the EUS coordinate system with X+ pointing east, Y+ pointing up, and Z+ pointing south\n\nCheck the tracking state\n------------------------\n\nGeospatial values are only valid while [`AREarthManager.EarthTrackingState`](/ar/reference/unity-arf/class/Google/XR/ARCoreExtensions/AREarthManager#earthtrackingstate) is [`TrackingState.Tracking`](https://docs.unity3d.com/Packages/com.unity.xr.arsubsystems@4.2/api/UnityEngine.XR.ARSubsystems.TrackingState.html). Make sure to wrap all Geospatial API calls in a [`AREarthManager.EarthTrackingState`](/ar/reference/unity-arf/class/Google/XR/ARCoreExtensions/AREarthManager#earthtrackingstate) control block. \n\n var earthTrackingState = EarthManager.EarthTrackingState;\n if (earthTrackingState == TrackingState.Tracking)\n {\n // camera_geospatial_pose contains geodetic location, rotation, and\n // confidences values.\n var cameraGeospatialPose = EarthManager.CameraGeospatialPose;\n }\n\nIf [`AREarthManager.EarthTrackingState`](/ar/reference/unity-arf/class/Google/XR/ARCoreExtensions/AREarthManager#earthtrackingstate) does not become [`TrackingState.Tracking`](https://docs.unity3d.com/Packages/com.unity.xr.arsubsystems@4.2/api/UnityEngine.XR.ARSubsystems.TrackingState.html), [`AREarthManager.EarthTrackingState`](/ar/reference/unity-arf/class/Google/XR/ARCoreExtensions/AREarthManager#earthtrackingstate) may be [`TrackingState.Limited`](https://docs.unity3d.com/Packages/com.unity.xr.arsubsystems@4.2/api/UnityEngine.XR.ARSubsystems.TrackingState.html) or [`TrackingState.None`](https://docs.unity3d.com/Packages/com.unity.xr.arsubsystems@4.2/api/UnityEngine.XR.ARSubsystems.TrackingState.html). If neither of these conditions are true, check [`TrackingState.EarthTrackingState`](/ar/reference/unity-arf/class/Google/XR/ARCoreExtensions/AREarthManager#earthtrackingstate), which shows other error states that may keep the [`AREarthManager`](/ar/reference/unity-arf/class/Google/XR/ARCoreExtensions/AREarthManager) object from tracking.\n\nAdjust the pose for accuracy\n----------------------------\n\nWhen the device is upright in the default orientation, the pitch (X+) and roll (Z+) angles tend to be precise due to a natural alignment with AR tracking. However, the yaw (Y+) angles can vary depending on VPS data availability and temporal conditions at the location. Your app may have to make adjustments for accuracy.\n\n[`GeospatialPose.OrientationYawAccuracy`](/ar/reference/unity-arf/struct/Google/XR/ARCoreExtensions/GeospatialPose#orientationyawaccuracy) provides an accuracy estimate for the yaw (Y+) angles for a certain [`AREarthManager.CameraGeospatialPose`](/ar/reference/unity-arf/class/Google/XR/ARCoreExtensions/AREarthManager#camerageospatialpose). The orientation yaw accuracy is a number that describes the radius, in degrees, of the 68th percentile confidence level around the yaw angles in [`GeospatialPose.EunRotation`](/ar/reference/unity-arf/struct/Google/XR/ARCoreExtensions/GeospatialPose#eunrotation). In other words, there is a 68% chance that the [`AREarthManager.CameraGeospatialPose`](/ar/reference/unity-arf/class/Google/XR/ARCoreExtensions/AREarthManager#camerageospatialpose)'s true yaw angle is accurate within the number of degrees returned by\n[`GeospatialPose.OrientationYawAccuracy`](/ar/reference/unity-arf/struct/Google/XR/ARCoreExtensions/GeospatialPose#orientationyawaccuracy).\n\nLarger values indicate lower accuracy. For example, if the estimated yaw angle is 60 degrees and the yaw accuracy is 10 degrees, then there is a 68% probability that the true yaw angle is between 50 and 70 degrees.\n\nWhat's next\n-----------\n\n- [Place a Geospatial anchor](/ar/develop/unity-arf/geospatial/anchors#wgs84_anchors) by obtaining the anchor's Geospatial pose."]]