UGoogleARCoreAugmentedImage

#include <GoogleARCoreAugmentedImage.h>

An object representing an augmented image currently in the scene.

Summary

Inheritance

Inherits from: UARTrackedImage

Public functions
`DebugDraw(UWorld *World, const FLinearColor & OutlineColor, float OutlineThickness, float PersistForSeconds) const override`	`virtual void` Draw a box around the image, for debugging purposes.
`GetCenter() const`	`FVector` Get the center in local space of the augmented image.
`GetExtent() const`	`FVector` Get the size in local space of the augmented image.
`GetImageIndex() const`	`int32` Get the index of an augmented image in the augmented image database.
`GetImageName() const`	`FString` Get the name of an augmented image in the augmented image database.
`UpdateTrackedGeometry(const TSharedRef< FARSystemBase, ESPMode::ThreadSafe > & InTrackingSystem, uint32 FrameNumber, double Timestamp, const FTransform & InLocalToTrackingTransform, const FTransform & InAlignmentTransform, FVector2D InEstimatedSize, UARCandidateImage *InDetectedImage, int32 InImageIndex, const FString & ImageName)`	`void` Update the tracked object.

Public functions

DebugDraw

virtual void DebugDraw(
  UWorld *World,
  const FLinearColor & OutlineColor,
  float OutlineThickness,
  float PersistForSeconds
) const override

Draw a box around the image, for debugging purposes.

Details

Parameters

`World`	World context object.
`OutlineColor`	Color of the lines.
`OutlineThickness`	Thickness of the lines.
`PersistForSeconds`	Number of seconds to keep the lines on-screen.

GetCenter

FVector GetCenter() const

Get the center in local space of the augmented image.

Details
Returns	The center in the augmented image's local coordinate space.

GetExtent

FVector GetExtent() const

Get the size in local space of the augmented image.

Details
Returns	The size in the augmented image's local coordinate space.

GetImageIndex

int32 GetImageIndex() const

Get the index of an augmented image in the augmented image database.

Details
Returns	An integer indicating the index into the Entries array in the UGoogleARCoreAugmentedImageDatabase.

GetImageName

FString GetImageName() const

Get the name of an augmented image in the augmented image database.

Details
Returns	The name of the image in the image database.

UpdateTrackedGeometry

void UpdateTrackedGeometry(
  const TSharedRef< FARSystemBase, ESPMode::ThreadSafe > & InTrackingSystem,
  uint32 FrameNumber,
  double Timestamp,
  const FTransform & InLocalToTrackingTransform,
  const FTransform & InAlignmentTransform,
  FVector2D InEstimatedSize,
  UARCandidateImage *InDetectedImage,
  int32 InImageIndex,
  const FString & ImageName
)

Update the tracked object.

This is called by FGoogleARCoreAugmentedImageResource::UpdateGeometryData() to adjust the tracked position of the object.

Details

Parameters

`InTrackingSystem`	The AR system to use.
`FrameNumber`	The current frame number.
`Timestamp`	The current time stamp.
`InLocalToTrackingTransform`	Local to tracking space transformation.
`InAlignmentTransform`	Alignment transform.
`InEstimatedSize`	The estimated size of the object.
`InDetectedImage`	The image that was found, in Unreal's cross-platform augmente reality API.
`InImageIndex`	Which image in the augmented image database is being tracked.
`ImageName`	The name of the image being tracked.