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78 行
3.0 KiB
78 行
3.0 KiB
#import <ARKit/ARKit.h>
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// Gets the Objective-C metaclass for ARGeoTrackingConfiguration
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Class ARGeoTrackingConfiguration_class() {
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// ARGeoTrackingConfiguration requires iOS 14
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if (@available(iOS 14, *)) {
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if (ARGeoTrackingConfiguration.isSupported) {
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return [ARGeoTrackingConfiguration class];
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} else {
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NSLog(@"ARGeoTrackingConfiguration is not supported on this device.");
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}
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}
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return NULL;
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}
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// Adds an ARGeoAnchor to the ARSession
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void ARSession_addGeoAnchor(void* self, CLLocationCoordinate2D coordinate, double altitude) {
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if (@available(iOS 14, *)) {
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// Cast the void* back to an ARSession
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ARSession* session = (__bridge ARSession*)self;
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// Create a new ARGeoAnchor
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// See https://developer.apple.com/documentation/arkit/argeoanchor/3551719-initwithcoordinate?language=objc
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ARGeoAnchor* geoAnchor = [[ARGeoAnchor alloc] initWithCoordinate:coordinate altitude:altitude];
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// Add the new anchor to the session
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[session addAnchor:geoAnchor];
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NSLog(@"Added ARGeoAnchor at (%f, %f) at %f meters", coordinate.latitude, coordinate.longitude, altitude);
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}
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}
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// Flips a transform from ARKit's right-handed coordinate system to Unity's left-handed coordinate system.
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static inline simd_float4x4 FlipHandedness(simd_float4x4 transform) {
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const simd_float4* c = transform.columns;
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return simd_matrix(simd_make_float4( c[0].xy, -c[0].z, c[0].w),
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simd_make_float4( c[1].xy, -c[1].z, c[1].w),
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simd_make_float4(-c[2].xy, c[2].z, c[2].w),
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simd_make_float4( c[3].xy, -c[3].z, c[3].w));
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}
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// Demonstrates "doing something" with the ARSession
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void DoSomethingWithSession(void* sessionPtr) {
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// ===============================
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// Replace this with your own code
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// ===============================
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// In this example, just look for all ARGeoAnchors and print out their transforms.
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if (@available(iOS 14, *)) {
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ARSession* session = (__bridge ARSession*)sessionPtr;
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for (ARAnchor* anchor in session.currentFrame.anchors) {
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if ([anchor isKindOfClass:[ARGeoAnchor class]]) {
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ARGeoAnchor* geoAnchor = (ARGeoAnchor*)anchor;
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const simd_float4x4 transform = FlipHandedness(geoAnchor.transform);
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const simd_float4* c = transform.columns;
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NSLog(@"ARGeoAnchor %@ transform:\n"
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"[%+f %+f %+f %+f]\n"
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"[%+f %+f %+f %+f]\n"
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"[%+f %+f %+f %+f]\n"
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"[%+f %+f %+f %+f]\n",
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[geoAnchor.identifier UUIDString],
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c[0].x, c[1].x, c[2].x, c[3].x,
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c[0].y, c[1].y, c[2].y, c[3].y,
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c[0].z, c[1].z, c[2].z, c[3].z,
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c[0].w, c[1].w, c[2].w, c[3].w);
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}
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}
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}
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}
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bool ARFoundationSamples_IsiOS14OrLater() {
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if (@available(iOS 14, *)) {
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return true;
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}
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return false;
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}
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