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May 30, Production release notes indicate Canvas updates that will be included with Saturday's Learn more about the Canvas Release Schedule. . In the Users API, users can get and update custom colors with three new endpoints. .. Explanation: When a student tried to view a page that is locked by an unmet. Nov 27, Black Hole Explosion damage reduced by 35%. to continue to track spells after Innervate is removed from the target earlier than its normal. Records fall, defending champs shine at AHSAA state track meets. Boys Track Baker boys, McGill girls among local winners in 5A-7A sectional track meets.
The Plugin would put the camera in TTL trigger mode, and start dithering the Tunable lens with a Single-axis functions. The Tunable Lens card will output a TTL pulse when it reaches the lower and upper peak of the dither. This triggers the camera to capture images at the lower and upper peak of the Tunable lens. The Plugin asynchronous collects these images from the camera and sorts and displays the images.
The Plugin then calculates the focus score of these images, and figures out the direction and amount of correction needed to keep sample in focus. For XY tracking, the Plugin just looks at the images coming from the upper peak, compares the current image with the previous image and calculates relative movement between the two frames or objects within a frame Plugin then sends the correction command for XY and Z to Tiger controller to bring the sample back into view and in focus.
The Plugin does this by dithering the Tunable lens and triggering the camera at the two ends of the dither. This gets the Plugin two images at different focal lengths without actually moving the objective.
You many want the Tunable lens on a 2nd optical path, as the lens is constantly dithering and always out of focus, the images from it may not be useful. It is important for the two optical paths to be parfocal. By Calculating the focus scores of these two images and comparing them the Plugin is able to estimate the quality of focus at the main optical path, and if it shifts, what direction to move the Z drive to bring to back to focus.
Start with a high binning; higher the binning faster is the processing time. Too much binning, the image loses its detail, and the focus scoring won't work so well. Then select the TL Dither Amp, maximum setting is Unless you have good reasons leave it at This is the amplitude tunable lens is dithered at, larger the amplitude, more focus change is produced. The focus change produced varies how your system is optically setup, but the biggest contributor is Objective magnification.
On a 20x objective, dither produces 80 microns focus change. However on a 60x objective units of dither may only produce 8 microns focus change. Also Large dither amplitude limits maximum dither frequency. In observations, at units dither, maximum dither frequency we could run at was 30 Hz. Pick Dither frequency, set it at half of the camera frame rate. Say camera has a frame rate of 25 Hz; set the dither frequency at 10 or 12 Hz.
Canvas Production Release Notes (2015-06-06)
One cycle of dither puts out two trigger pulses, so dither frequency should always be half of camera fps. If you are not using these cameras, then select this box, and manually set the camera in external mode. If you have no preference for which Z Algorithm is used, pick Volath, should give good results in most cases.
This is the maximum distance the Plugin is allowed to move the objective in Lock state. This setting will prevent objective from crashing into the sample.
Start Z sweep does 20 steps with that step size. If you have an objective with small working distance, reduce this. If it is a big image, try increasing binning, or picking another Z algorithm. Next manually focus the image out of your main optical path camera by moving the Z drive with a knob, if you like press zero button on the joystick box.
Say the Z position was 0um, and step size was 5um. It records the Focus score of the up image and down image, and computes a delta of these scores and graphs them. A graph like the one below is generated.
Ideal Graph Above graph is idealwe like a nice slope either sloping left or rightwith it centered as close to the main optical path's best focus as possible. When there is a shift in main optical path's focus, we are picking up change in up and down images focus score, and we know the amount and direction the Z stage needs to be moved to bring back to original focus.
Ok, but slope is small Larger the slope, more signal we have to work with and better the Z tracking performs. A relatively small slope like this could also works.
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Few things we can try to improve the slope is to reduce the binning, so images have more detail and focus scoring improves. Increase the TL dither amplitude. Or try a different Z focus scoring algorithm. Graph when Main path and Tunable lens path aren't parfocal When Optical path with tunable lens and main Acquisition camera are not parfocal, we may see a slope like this.
The Plugin won't be able to maintain focus, because the images on the tunable lens path are so blurry, any focus change on the main path will go unnoticed. With the Tunable lens not dithering, view the videos from both the optical paths.
Using the focus control knob. Manually adjust the Tunable lens so both video are in focus. Tunable lens will dither with this offset position as new center. However because of the offset, we got some tunable lens travel. Example of bad graph Example of bad graph Example of bad graph These graphs are not ideal and the Z tracking won't work. When the delta is flat, it means the focus score of the images are same or very small.
This could be when there is no feature to focus on or other issues like insufficient light, or filter blocking the light etc. When it's a parabola, the Plugin is able to pickup focus change, but isn't able to deduce the direction to move to fix it. You may try using the TL Offset feature to shift the parabola and create a slope that falls on the best focus position.
And returns to original position. Now move the XY stage and see how the Z tracking is working. User can pick features of objects to track by left clicking on them, and enable or disable LOCK or tracking with a right click on the mouse. XY tracking can be done along with Z tracking.
Next Select Binning, smaller the image faster the processing time. Say camera has a frame rate of 25 Hz; let the dither frequency at 10 or 12 Hz. If you're not using these cameras, then select this box, and manually set the camera in external mode. On the flip size a small magnification objective, you may want to increase it. XY tracker begins in idle mode and it isn't doing any processing. Now you begin to see XY processing time. If it's too high we may want to increase binning or select a different XY tracking algorithm.
Unlike Z, Acquisition doesn't have to be restarted. PhaseCorr is a good routine for XY calibration, it's simple to use as it looks at the entire frame and no feature has to be selected prior. However it's slow and not ideal during tracking. Unless the tracking camera is moved to a different port, this routine doesn't have to be run again, even if the user changes the XY tracking algorithm.
Plugin is now ready to lock. When in LOCK state, Plugin will try to keep the feature selected or frame as centered as possible by applying correction. Object is still being tracked, but no correction is applied. This can be changed on the fly even in LOCK state.
That is it for get started with XY tracking. Description of Plugin Controls Note: User is then able to pick which of these devices the Plugin can and cannot use.
Camera, this cannot the main data acquisition camera, as the Plugin will take total control of this camera. Use a secondary camera. Calculating the focus score or pixel shift of the image is processor intensive.
This settings give the user option to reduce the processing the time. Does not increase processing time. This setting lets the user pick the Moving average length. Same as the Command: In our observations, at units dither, maximum dither frequency we could run at was 30 Hz. Plugin converts this into a time period and applies it to the Tunable lens with the Command: User can pick from a Triangle, Square or Sine pattern.
However if the user is using a different camera the Plugin won't be able to change the mode. User will need to manually set the camera in external trigger mode, and check this box; Plugin will not try change the camera state. The file is saved in MicroManager Install folder in Program files.
This feature doesn't generate more serial communication traffic. If a file exists with the same name, Plugin appends to it, and won't overwrite it. Each algorithm has its strengths and weakness, user is encouraged to experiment. Changing this option requires the Acquisition be restarted for changes to take effect. User might need to rerun Z Calib. This setting is meant to avoid tiny movements of the Z drive when image is in focus. Settings is automatically determined by Z Calib routine.
If the correction is too slow, increase this setting. If the correction is too much that it overshoots then starts ringing or oscillating, decrease the settings.
Setting is automatically determined by Z Calib routine. To determine this manually, put the Z track in Lock state, then if the Z drive moves away from best focus, then polarity needs to be inverted. When the user presses the Z Lock Button the Plugin zeros the current offset by copying it to this setting. User can adjust this setting if they need to slightly adjust the Z Lock position.
This is to prevent the tracker from focusing on background. This setting is automatically determined during Z Calib. To do this manually, move the field of view to just the background. Then hit the Get Low Focus Score button. The current focus score will copy into this setting. Will need to be repeated if Z Algorithm is changed.
This is to prevent run away. When set to true, this flag indicates that you want to have tool support from the Android Gradle plugin to automatically convert existing third-party libraries as if they were written for AndroidX. Both flags are set to true when you use the Migrate to AndroidX command.
If you want to start using AndroidX libraries immediately and don't need to convert existing third-party libraries, you can set the android. You no longer need to build, sign, and manage multiple APKs, and users get smaller, more optimized downloads. Additionally, you can add dynamic feature modules to your app project and include them in your app bundle. For more information, including instructions for building and analyzing an Android App Bundle, see Android App Bundle.
Sample data in Layout Editor Many Android layouts have runtime data that can make it difficult to visualize the look and feel of a layout during the design stage of app development. You can now easily see a preview of your view in the Layout Editor filled with sample data.
asi_xyz_tracker_plugin [Applied Scientific Instrumentation]
When you add a view, a button appears below the view in the Design window. Click this button to set the design-time view attributes. You can choose from a variety of sample data templates and specify the number of sample items with which to populate the view.
To try using sample data, add a RecyclerView to a new layout, click the design-time attributes button below the view, and choose a selection from the carousel of sample data templates. Slices Slices provide a new way to embed portions of your app's functionality in other user interface surfaces on Android.
For example, Slices make it possible to show app functionality and content in Google Search suggestions. To learn more, including how to test your Slice interactions, read the Slices getting started guide. For more information, see the Android Developers blog. Sessions You can now save Profiler data as sessions to revisit and inspect later. The profiler keeps your session data until you restart the IDE.
When you record a method trace or capture a heap dumpthe IDE adds that data along with your app's network activity as a separate entry to the current session, and you can easily switch back and forth between recordings to compare data. This trace configuration is built on systrace and is useful for investigating system-level issues, such as UI jank. While your app is running, select a portion of the timeline that you want to inspect and select JNI heap from the drop-down menu above the class list, as shown below.
You can then inspect objects in the heap as you normally would and double-click objects in the Allocation Call Stack tab to see where the JNI references are allocated and released in your code. Import, export, and inspect memory heap dump files You can now import, export, and inspect.
You can then inspect its data in the Memory Profiler as you would any other heap dump. To save heap dump data to review later, use the Export Heap Dump button at the right of the Heap Dump entry in the Sessions pane. In the Export As dialog that appears, save the file with the.
Under the Profiling tab of your desired run configuration, check the box next to Start recording a method trace on startup. Select a CPU recording configuration to use from the dropdown menu. Deploy your app to a device running Android 8. Right-click on the recording you want to export from the CPU timeline. Select Export trace from the dropdown menu.
Navigate to where you want to save the file and click Save. Import and inspect CPU trace files You can now import and inspect. Currently, you can't import System Trace recordings. You can then inspect its data in the CPU Profiler similar to how you normally would, with the following exceptions: The thread activity timeline indicates only where trace data is available for each thread and not actual thread states such as running, waiting, or sleeping.
After you deploy your app to a device, the profiler automatically starts recording CPU activity when your app calls startMethodTracing String tracePathand the profiler stops recording when your app calls stopMethodTracing.
Energy Profiler The Energy Profiler displays a visualization of the estimated energy usage of your app, as well as system events that affect energy usage, such as wakelocks, alarms, and jobs. The Energy Profiler appears as a new row at the bottom of the Profiler window when you run your app on a connected device or Android Emulator running Android 8.
Click the Energy row to maximize the Energy Profiler view. Place your mouse pointer over a bar in the timeline to see a breakdown of energy use by CPU, network, and location GPS resources, as well as relevant system events. System events that affect energy usage are indicated in the System timeline below the Energy timeline. Details of system events within the specified time range are shown in the event pane when you select a time range in the Energy timeline. To see the call stack and other details for a system event, such as a wakelock, select it in the event pane.
To go to the code responsible for a system event, double-click the entry in the call stack. Lint checking Android Studio 3.
The new lint checks help you to find and identify common code problems, ranging from warnings about potential usability issues to high-priority errors regarding potential security vulnerabilities.
Examples of these checks include looking for the presence of Nullability annotations, use of Kotlin hard keywords, and placing lambda parameters last. To enable these checks for command-line builds, add the following to your build. For example, lint checks warn you if you have not assigned a primary action to a Slice. New Gradle target Use the new lintFix Gradle task to apply all of the safe fixes suggested by the lint check directly to the source code. An example of a lint check that suggests a safe fix to apply is SyntheticAccessor.
Metadata updates Various metadata, such as the service cast check, have been updated for lint checks to work with Android 9 API level Warning if running lint on a new variant Lint now records which variant and version a baseline is recorded with, and lint warns you if you run it on a different variant than the one with which the baseline was created. Improvements to existing lint checks Android Studio 3.
For example, the resource cycle checks now apply to additional resource types, and the translation detector can find missing translations on the fly, in the editor. This makes it easier for you to find the information that you need to enable or disable specific checks through lintOptions in build.
For more information, see Configure lint options with Gradle. This means that, if you have library dependencies that you compiled with V1, you can use them with projects using Data Binding V2.
However, note that projects using V1 cannot consume dependencies that were compiled with V2. D8 desugaring In Android Studio 3. New code shrinker R8 is a new tool for code shrinking and obfuscation that replaces ProGuard. This behavior change is also included in Android Studio 3. Syntax highlighting and code completion: Additionally, you can navigate to a file by clicking it while pressing the Control key Command on Mac.
Navigate external header files When using the Project window in previous versions of Android Studio, you could navigate and inspect only the header files that belong to libraries you build from a local project. Native multidex enabled by default Previous versions of Android Studio enabled native multidex when deploying the debug version of an app to a device running Android API level 21 or higher.
To use AAPT2, make sure that you have a google dependency in your build. Removal of configuration on demand The Configure on demand preference has been removed from Android Studio. Android Studio no longer passes the --configure-on-demand argument to Gradle.
Android Studio release notes
The ADB Connection Assistant provides instructions, in-context controls, and a list of connected devices in a series of pages in the Assistant panel. Emulator improvements You can now save and load snapshots of an AVD Android virtual device at any time in the Android Emulator, making it fast and easy to return an emulated device to a known state for testing. Controls for saving, loading, and managing AVD snapshots are now in the Snapshots tab in the emulator's Extended controls window.
For details, see Snapshots. The bundled Kotlin is now version 1. R8 parsing of ProGuard rules has been improved. Attempting to run the Kotlin Main class failed with an error: Could not find or load main class Using the Rerun failed tests command in the Run window sometimes incorrectly returned the message "No tests were found".
D8 did not correctly handle invoke-virtual instances, causing a crash with a VerifyError: The compiler now uses tools annotations from the base project when available.
Android Studio crashed during fragment transitions when using profilers. The debugger crashed when debugging a layout with a text box. D8 failed to read some ZIP files with special characters. Memory leaks caused Android Studio to become slow and unresponsive after you had been using the Layout Editor. This update includes fixes for most of these issues. We intend to release another update soon to address additional memory leaks.
Some applications built with D8 crashed on some Verizon Ellipsis tablets. Some applications that used the OkHttp library and were built with D8 crashed on devices running Android 4. Android Studio sometimes failed to start, with a ProcessCanceledException during class initialization for com. In some cases, Android Studio hung indefinitely during exit.
Builds configured with source sets failed with the following message when Instant Run was enabled: During editing of the build. Build failures occurred during dexing in some projects with large numbers of modules or external dependencies, with the following error message: Thread limit exceeded replacing blocked worker" The computation of the D8 main DEX list was not taking into account some reflective invocations.
This update also includes changes that make running lint checks from Gradle much faster in some scenarios. In some cases, when a project created in Android Studio 3.
The result was that projects did not build when the Run or Debug button was clicked, which in turn caused failures such as deployment of incorrect APKs and crashes when using Instant Run. To solve this problem, Android Studio 3. This modification occurs after the first Gradle sync when the project is loaded. The debugger crashed when debugging a layout with a text box if advanced profiling was enabled.
Android Studio froze after you clicked Build Variants. AAR Android archive files were extracted twice, once during the Gradle sync process and once during the Gradle build process. Elements were missing from some vector drawables imported from SVG files. The warning regarding the deprecation of the compile dependency configuration has been updated with better guidance regarding the implementation and api configurations.
For details of migrating away from using the compile configuration, see the documentation for the new dependency configurations.