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fix: handle device rotation
author
nathan holland
date
(Sep 25, 2025, 10:16 PM +0300)
commit
654bade6
654bade6f853e8c732092f5f5c221764286f38d6
parent
42761f19
42761f197d3dae440b968da422f2c4b3f4413df1
+47
-2
+6
-2
posedetection/src/androidMain/kotlin/com/performancecoachlab/posedetection/camera/Utils.android.kt
+6
-2
posedetection/src/androidMain/kotlin/com/performancecoachlab/posedetection/camera/Utils.android.kt
···
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* @param angle The rotation angle in degrees (must be a multiple of 90) to apply to the focus area rectangle
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* @return A new bitmap with areas outside the focus area blacked out, or the original bitmap if focusArea is null
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*/
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fun Bitmap.applyFocusAreaMask(focusArea: Rect?, angle: Int = 0): Bitmap {
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fun Bitmap.applyFocusAreaMask(focusArea: Rect?, _angle: Int = 0): Bitmap {
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return focusArea?.let { rect ->
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val result = this.copy(this.config ?: Bitmap.Config.ARGB_8888, true)
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val canvas = android.graphics.Canvas(result)
···
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color = android.graphics.Color.BLACK
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}
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val angle = 0
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// Transform the rectangle coordinates based on the angle
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val transformedRect = when (angle % 360) {
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90 -> Rect(
···
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} ?: emptyList()
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var skeleton: Skeleton? = null
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val poseDetectionTask = mlKitImage?.let {
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val rotation = it.rotationDegrees
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poseDetector?.process(it)?.addOnSuccessListener { pose ->
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skeleton = skeleton(pose, timestamp, width, height)
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skeleton = skeleton(pose, timestamp, width, height).let{
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it.rotate(rotation)
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}
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}?.addOnFailureListener { e ->
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//println(e)
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}
+40
posedetection/src/commonMain/kotlin/com/performancecoachlab/posedetection/skeleton/Skeleton.kt
+40
posedetection/src/commonMain/kotlin/com/performancecoachlab/posedetection/skeleton/Skeleton.kt
···
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height = height,
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)
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}
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+
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fun rotate(angle: Int): Skeleton {
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if (angle % 90 != 0) return this
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+
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val normalizedAngle = ((angle % 360) + 360) % 360
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if (normalizedAngle == 0) return this
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+
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val frameWidth = this.width
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val frameHeight = this.height
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val transform: (SkeletonCoordinate) -> SkeletonCoordinate = when (normalizedAngle) {
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90 -> { coord -> SkeletonCoordinate(coord.y, frameWidth - coord.x) }
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180 -> { coord -> SkeletonCoordinate(frameWidth - coord.x, frameHeight - coord.y) }
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270 -> { coord -> SkeletonCoordinate(frameHeight - coord.y, coord.x) }
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else -> { coord -> coord }
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}
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val newDimensions = when (normalizedAngle) {
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90, 270 -> Pair(frameHeight, frameWidth)
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else -> Pair(frameWidth, frameHeight)
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}
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+
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return Skeleton(
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timestamp = timestamp,
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leftShoulder = leftShoulder?.let(transform),
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rightShoulder = rightShoulder?.let(transform),
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leftElbow = leftElbow?.let(transform),
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rightElbow = rightElbow?.let(transform),
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leftWrist = leftWrist?.let(transform),
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rightWrist = rightWrist?.let(transform),
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leftHip = leftHip?.let(transform),
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rightHip = rightHip?.let(transform),
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leftKnee = leftKnee?.let(transform),
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rightKnee = rightKnee?.let(transform),
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leftAnkle = leftAnkle?.let(transform),
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rightAnkle = rightAnkle?.let(transform),
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width = newDimensions.first,
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height = newDimensions.second
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)
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}
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}
+1
sample/composeApp/src/commonMain/kotlin/com/nate/posedetection/App.kt
+1
sample/composeApp/src/commonMain/kotlin/com/nate/posedetection/App.kt