piet | An abstraction for 2D graphics | Graphics library

 by   linebender Rust Version: v0.6.0 License: Apache-2.0

kandi X-RAY | piet Summary

kandi X-RAY | piet Summary

piet is a Rust library typically used in User Interface, Graphics applications. piet has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

The Piet project consists of a core crate (piet) which describes a 2D graphics API, and a number of "backends", which implement that API on top of the built-in 2D graphics system of a given platform. This allows the same drawing code to be used on different platforms, without having to bundle a full 2D renderer. The motivation for this crate is set forth in this blog post. It is used as the basis of Druid, a cross-platform GUI toolkit. A companion for Bézier path representation and geometry is kurbo.
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            kandi-support Support

              piet has a medium active ecosystem.
              It has 1109 star(s) with 89 fork(s). There are 36 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 60 open issues and 85 have been closed. On average issues are closed in 98 days. There are 9 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of piet is v0.6.0

            kandi-Quality Quality

              piet has no bugs reported.

            kandi-Security Security

              piet has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              piet is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              piet releases are not available. You will need to build from source code and install.

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            piet Key Features

            No Key Features are available at this moment for piet.

            piet Examples and Code Snippets

            No Code Snippets are available at this moment for piet.

            Community Discussions

            QUESTION

            How should I implement my Parcel details interface out of the two implementations?
            Asked 2021-May-15 at 13:08

            I have an XML document from which I would be reading data and I have to implement an interface for it. Below is the sample XML:

            ...

            ANSWER

            Answered 2021-May-15 at 13:08

            I would suggest the first way, but you'd have to adapt your interfaces a bit.

            Source https://stackoverflow.com/questions/67546817

            QUESTION

            How to fill in the nan values based on prior found values in the pandas dataframe?
            Asked 2021-Apr-22 at 11:02

            I have the following example dataframe (normal dataframe has more than 1000 rows)

            ...

            ANSWER

            Answered 2021-Apr-22 at 11:02

            Idea is create DataFrame with changed order first in concat with rename, remove rows with missing values and possible duplicates and change original values by DataFrame.update:

            Source https://stackoverflow.com/questions/67196440

            QUESTION

            ASP / SQL: Filepath as clickable link
            Asked 2021-Mar-04 at 21:41

            I have a database file that looks like the following:

            ...

            ANSWER

            Answered 2021-Mar-04 at 21:41

            Remember, code behind can use full file system - like any desktop code.

            But if you going to use that file in the asp.net (web side), then you MUST be able to produce a valid URL path name.

            So ALWAYS keep in mind the above:

            Codebehind - path names are STANDARD windows file path names (and even "\" etc.).

            Web pages - markup = valid URL's mapped by the web site.

            If you confuse the above two concpets above? you be in for a world of pain by ignoring the above VERY simple idea.

            So, you need TWO things to convert those path names to valid WEB links:

            First up: The web server "site" needs rights and a "means" to point to a given folder in question.

            So, you might have some say SAN or big network storage device - and you toss/place/have/put your files there.

            Say like this:

            Source https://stackoverflow.com/questions/66477178

            QUESTION

            Performant method of drawing text onto a png file?
            Asked 2021-Mar-03 at 11:54

            I need to draw a two-dimensional grid of Squares with centered Text on them onto a (transparent) PNG file. The tiles need to have a sufficiently big resolution, so that the text does not get pixaleted to much.

            For testing purposes I create a 2048x2048px 32-bit (transparency) PNG Image with 128x128px tiles like for example that one:

            The problem is I need to do this with reasonable performance. All methods I have tried so far took more than 100ms to complete, while I would need this to be at a max < 10ms. Apart from that I would need the program generating these images to be Cross-Platform and support WebAssembly (but even if you have for example an idea how to do this using posix threads, etc. I would gladly take that as a starting point, too).

            Net5 Implementation ...

            ANSWER

            Answered 2021-Mar-03 at 11:54

            I was able to get all of the drawing (creating the grid and the text) down to 4-5ms by:

            • Caching values where possible (Random, StringFormat, Math.Pow)
            • Using ArrayPool for scratch buffer
            • Using the DrawString overload accepting a StringFormat with the following options:
              • Alignment and LineAlignment for centering (in lieu of manually calculating)
              • FormatFlags and Trimming options that disable things like overflow/wrapping since we are just writing small numbers (this had an impact, though negligible)
            • Using a custom Font from the GenericMonospace font family instead of SystemFonts.DefaultFont
              • This shaved off ~15ms
            • Fiddling with various Graphics options, such as TextRenderingHint and SmoothingMode
              • I got varying results so you may want to fiddle some more
            • An array of Color and the ToArgb function to create an int representing the 4x bytes of the pixel's color
            • Using LockBits, (semi-)unsafe code and Span to
              • Fill a buffer representing 1px high and size * countpx wide (the entire image width) with the int representing the ARGB values of the random colors
              • Copy that buffer size times (now representing an entire square in height)
              • Rinse/Repeat
              • unsafe was required to create a Span<> from the locked bit's Scan0 pointer
            • Finally, using GDI/native to draw the text over the graphic

            I was then able to shave a little bit of time off of the actual saving process by using the Image.Save(Stream) overload. I used a FileStream with a custom buffer-size of 16kb (over the default 4kb) which seemed to be the sweet spot. This brought the total end-to-end time down to around 40ms (on my machine).

            Source https://stackoverflow.com/questions/66241394

            QUESTION

            what do vulkan memory semantic flags like gl_SemanticsRelaxed, gl_SemanticsRelease, and gl_SemanticsAcquire do in Vulkan GLSL?
            Asked 2021-Feb-11 at 04:14

            I'm trying to figure how the atomic store functions in the following code work, they rely on GL_KHR_memory_scope_semantics.

            ...

            ANSWER

            Answered 2021-Feb-11 at 04:14

            The specification you linked to seems pretty clear:

            gl_StorageSemantics* and gl_Semantics* values should be bitwise ORed together to generate the SPIR-V Semantics enums

            And it also specifies how the GL atomic functions map to SPIR-V atomic operations. So the answers you seek are in the SPIR-V specification. And the deep details are defined by the Vulkan memory model, appendix B of the Vulkan specification.

            Source https://stackoverflow.com/questions/66148183

            QUESTION

            Add values from a nested JSON to a pandas dataframe
            Asked 2021-Feb-10 at 14:15

            I have the following JSON object:

            ...

            ANSWER

            Answered 2021-Feb-10 at 14:15

            At the end of your for loop, 'df' keeps the last 'node' key of your json. You have to append all 'nodes' keys in a single dataframe instead.

            Extending your code:

            Source https://stackoverflow.com/questions/66138078

            QUESTION

            Add list of dictionary to nested dictionary without it being in a list anymore
            Asked 2021-Feb-05 at 22:12
            names = ['jan', 'piet', 'joris', 'corneel','jef']
            ages = ['one', 'two', 'thee', 'four','five']
            
            namesToDs = [{'name': name} for name in names]
            ageToDs = [{'age': age} for age in ages]
            
            concat = [[name, age] for name,age in zip(namesToDs,ageToDs)]
            
            
            context = {'Team1': {'player1': concat[0] }}
            print(context)
            
            ...

            ANSWER

            Answered 2021-Feb-05 at 22:10

            The result you expected isn't a possible dictionary. The closest possible would be this:

            Source https://stackoverflow.com/questions/66071228

            QUESTION

            Assembly x86 64 Linux AT&T: print routine segmentation error
            Asked 2020-Oct-23 at 02:10

            I am new to assembly and am aware that my assembly code may not be efficient or could be better. The comments of the assembly may be messed up a little due to constant changes. The goal is to print each character of the string individually and when comes across with a format identifier like %s, it prints a string from one of the parameters in place of %s. So for example:

            String: Hello, %s

            Parameter (RSI): Foo

            Output: Hello, Foo

            So the code does what it suppose to do but give segmentation error at the end.

            ...

            ANSWER

            Answered 2020-Oct-23 at 02:10

            In formatString you modify %rbp with subq %rax, %rbp, forgetting that you will restore %rsp from it. So when you mov %rbp, %rsp just before the function returns, you end up with %rsp pointing somewhere else, and so you get the wrong return address.

            I guess you are subtracting some offset from %rbp to get some space on the stack. This seems unsafe because you've pushed lots of other stuff there. It is safe to use up to 128 bytes below the stack pointer as this is the red zone, but it would be more natural to use an offset from %rsp instead. Using SIB addressing you can access data at constant or variable offsets to %rsp without actually changing its value.

            How I found this with gdb: by setting breakpoints at myPrint and endPrint, I found that %rsp was different at the ret than it was on entry. Its value could only have come from %rbp, so I did watch $rbp to have the debugger break when %rbp changed, and it pointed straight to the offending instruction in formatString. (Which I could also have found by searching the source code for %rbp.)

            Also, your .text at the top of the file is misplaced, so all your code gets placed in the .data section. This actually works but it surely is not what you intended.

            Source https://stackoverflow.com/questions/64492376

            QUESTION

            Swift - Trim and map the first letter from a Array
            Asked 2020-Aug-29 at 09:30

            I have a List with >2500 client namens and want to create an alphabetical index of the lastNames ( first letter of the lastname ). When there are white spaces in front of the LastName ( Legacy dataissue, I know, should later get fixed ), they should be removed. If there is no LastName available then it should come up as the last item in the indexArrayro.

            result should be indexArray == ["A","G","I","M","S","Z",""] in uppercase.

            This is what I got so far.

            ...

            ANSWER

            Answered 2020-Aug-29 at 08:29

            Is this what are you looking for?

            Source https://stackoverflow.com/questions/63644872

            QUESTION

            Find parent key based on child value
            Asked 2020-Aug-07 at 18:42

            I have the following JSON. I want to know from which country "Jan" is (Belgium).

            ...

            ANSWER

            Answered 2020-Aug-07 at 12:23

            Get the path to the entry whose first_name is Jan as an array, and extract the country name from it.

            Source https://stackoverflow.com/questions/63301629

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install piet

            You can download it from GitHub.
            Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.

            Support

            Contributions are welcome! It's in early stages, so there are lots of opportunities to fill things out. You can find other collaborators at xi.zulipchat.com under the #druid stream.
            Find more information at:

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            gh repo clone linebender/piet

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            git@github.com:linebender/piet.git

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