column

It turns out that the problem isn't with GeometryReader, it's with LazyVGrid. I'm not clear on why, but my grid with 5 columns doesn't always report the same size. I can make it work by adding a 6th column that doesn't get used in the view. Very odd.

Hi @christiandevin It sounds like you want to convert a 2D point, on an image (of the left camera frame), to its corresponding location in 3D space. Before we discuss this, I want to bring your attention to a bug: The camera intrinsic matrix is row major instead of column major. I suspect this bug is the cause of the unexpected behavior @tsia observed. To account for this, look for the principal point and focal length at different positions in the intrinsic matrix (see snippet). Now let's turn to your goal. I'll refer to the 2D point on the image as the observation point. Using the camera intrinsic and extrinsic data with queryDeviceAnchor, you can convert the observation point to a 3D point (in world space) that represents the observation's location relative to the left camera's projection plane. That's not the same as its position in 3D space. Imagine seeing the world through a piece of glass (which represents the projection plane), the former is a point on that glass and the latter is the actual p

Look at your image and imagine there's a blue column immediately to the right of every red column. Now, the x-axis labels look like they're in the centre of the two columns. So, is your chart supposed to have two columns for each value? If not, in this line: AxisMarks(position: .automatic, values: shownXValues) { val in can position: .automatic be changed to something else? Also, is .useAppFont() a SwiftUI thing, or something you've written yourself? I've never seen it before.

Is there a way I can use the lldb user defined commands, which I can load from a KDK, to determine how much memory my kext has consumed? Is there a way to figure out what size blocks they are? Sort of. Keep in mind that your KEXT is simply a loadable library running inside the component, not an independant process/component. Just like in a user space process, there are a variety of mechanisms in place to associate memory allocations to components, but the information you get depends entirely on exactly what you're doing and why. In terms of commands, the kernel debugging command set has 400+ separate commands, many of which are specific to memory. You can see the full command list and a summary of each with the lldb command kgmhelp and each command accepts -h for more specific info. Taking zprint (one of the common starting points for looking at memory issues) as an example: (lldb) kgmhelp ... zprint - Routine to print a summary listing of all the kernel zones ... (lldb) zprint -h zprint: Routine to print a s

You can always create a custom sticker pack to have maximum control. You can see an example here. There are options for setting the columns in the attributes inspector on the right side panel in Xcode. If this is not working correctly in the default Xcode templated sticker pack, that would be a bug. The only workaround would be to write a sticker pack from scratch. Rico WWDR | DTS | Software Engineer

I’m not 100% sure I understand your question, but if you just want to modify a value at a known column / row then you can do that using subscripts. Here’s a simple example that corrects the publication date of Planet of Exile: import Foundation import TabularData let novels60s = Title,Year Rocannon's World,1966 Planet of Exile,1967 City of Illusions,1967 A Wizard of Earthsea,1968 The Left Hand of Darkness,1969 func test() throws { var df = try DataFrame(csvData: Data(novels60s.utf8)) print(before:n(df)) df[Year][1] = 1966 print(after:n(df)) } try test() It prints: before: ┏━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━┓ ┃ ┃ Title ┃ Year ┃ ┃ ┃ ┃ ┃ ┡━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━┩ │ 0 │ Rocannon's World │ 1,966 │ │ 1 │ Planet of Exile │ 1,967 │ │ 2 │ City of Illusions │ 1,967 │ │ 3 │ A Wizard of Earthsea │ 1,968 │ │ 4 │ The Left Hand of Darkness │ 1,969 │ └───┴───────────────────────────┴───────┘ 5 rows, 2 columns after: ┏━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━┓ ┃ ┃ Title ┃ Year ┃ ┃ ┃ ┃

what is the DeviceAnchor? Is it the location from which virtual content (and camera passthrough) is rendered on the user's display(s)? My understanding of a 4 by 4 transformation matrix is that the last column represents the translation, while the first 3 columns represent the local x, y, and z axis. I have plotted the first three columns of the extrinsics matrix and they do not seem to be orthogonal to each other, what are the implications of that? I would expect just a translation and a rotation (without scaling/shearing) what is the coordinate system for these intrinsics? based on the first 3 columns, it seems to be x=right, y=down and z=forward. Is that correct? any help or link to well-written documentation very much appreciated. When I see the following documentation which only tells me the type of extrinsics, and literally nothing else than just the type, I find that insufficient. https://developer.apple.com/documentation/arkit/cameraframe/sample/parameters/4443449-e

[quote='769825021, yuhantu, /thread/769825, /profile/yuhantu'] Can an Persional developer account develop, debug, and publish Network Extension apps? [/quote] No, presuming that you’re talking about a Personal Team. The Apple Developer column in Developer Account > Reference > Supported capabilities (iOS) shows what you can do with a Personal Team. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = eskimo + 1 + @ + apple.com

I was able to load a CSV into a TabularData based SwiftUI app -- loading and displaying was no issue ... but, HOW to update a value in a column. I created a bindable textfield for the columns in the table, and it displays the value for the rows/columns, and while the code to update the column compiles, it never updates the value in the DataFrame. Is a DataFrame read only ?