go-proj | Go bindings for PROJ - a coordinate transformation library | Map library
kandi X-RAY | go-proj Summary
kandi X-RAY | go-proj Summary
Go bindings for PROJ - a coordinate transformation library.
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Top functions reviewed by kandi - BETA
- Main programmatic example
- CRSToCRS converts a CRS to a transform function .
- unpack argument .
- Get area .
- Create crs_crs_to_crs_crs_from_pj
- pack C char string
- Transforms a Proj translation .
- unpackPCharString unpacks a string into a CCharAllocMap .
- Create a Proj_create object .
- String returns the CRS representation
go-proj Key Features
go-proj Examples and Code Snippets
Lines of Code : 35License : Permissive (Apache-2.0)
Copycoord := proj.XYZ{
X: 2,
Y: 49,
Z: 10,
}
err := proj.CRSToCRS(
proj.CRS("+proj=latlong"),
proj.CRS("EPSG:3857"),
proj.TransformForward(&coord))
fmt.Printf("%.2f %.2f", coord.X, coord.Y) // 222638.98 6274861.39
$ echo 2 podman build --target proj -t go-proj-builder .
podman run -v "$PWD":/go/src/go-proj:z -w /go/src/go-proj --rm go-proj-builder bash -c "rm -rf cproj \
&& go run -mod=vendor github.com/xlab/c-for-go -ccincl proj/proj.yaml \
&& proj --version
go get -u github.com/everystreet/go-proj/v8
import "github.com/everystreet/go-proj/v8/proj"
Community Discussions
Trending Discussions on go-proj
QUESTION
Following up with How do I check the size of a Go project?
The conclusion was:
in order to get a true sense of how much extra weight importing certain packages, one has to look at all of the pkg's sub-dependencies as well.
That's totally understandable. My question is,
Is there anyway that I can know how much space each component is taking in my compiled binary, the Go runtime, the dependencies and sub-dependencies packages, and my own code.
I vaguely remember reading something like this before (when go enhanced its linker maybe).
If there has never been such discussion before, then is there any way the go or even c linker can look into the my compiled binary, and reveal something that I can further parse myself?
ANSWER
Answered 2022-Jan-19 at 21:17The binary will contain debug symbols which we can use to figure out how many space each package takes up.
I wrote a basic program to do this since I don't know of any tool that does this:
QUESTION
I seem to have the correct usage for using the HDEL command interface, but seem to get 0 records deleted. Am I missing something here?
Here are useful code snippets:
This doesn't work:
...ANSWER
Answered 2021-Oct-19 at 02:16Construct an []interface{} containing the command arguments. Pass the slice of interface{} to the Do method as a variadic argument:
QUESTION
I'm not a golang developer but currently I have to fix code on it, so sorry in advance if I accidentally not understand some basic Go's concept ;) I have a third party protobuf contract which I have to use and on which I don't have influence. I'm not able to provide actual example of the contract, so I've made similar example project on Github which has the same problem.
In short: there is a deeply nested structure of proto documents where some of them import others:
ANSWER
Answered 2021-Aug-14 at 20:18This is more some pointers rather than a definitive answer. If I find some time tomorrow, I'll repro this to give you a definitive answer.
It is challenging. Protobufs has to find a solution for each language's package management and Go's (while IMO improved) is somewhat compounded with recent addition of Modules.
My approach my with code is to have a separate repo for the protos and generated code. If the protos change, the code is regenerated. I can either reference the generated module (!) or regenerate myself. This model keeps the protos as the definitive "source" with the timesaver of "cached" generated sources. But I'm my own 3rd-party library maintainer in this config.
So:
- Modules are manifest locally as a directory tree whose root contains
go.modandgo.sumand subsidirectories representing packages. - When you generate the code for the 3rd-party protos, I think it would be best to create this under their own module, either as a standalone directory or as a vendored subdirectory.
- This module should be named to reference the 3rd party and can be created with
go mod initand should contain the output ofprotoc - Modules are usually pulled from a proxy or repo but you can circumvent this (since the 3rd party isn't hosting the generated code for you) by manually adding a
replaceto thego modredirecting from the module path to a local path. - From your error, this should solve the missing module issue and with a subdirectory e.g.
companycontaining that generated code, should resolve the package too.
QUESTION
Hey I just updated to the new version of go go version go1.16.2 linux/amd64 and am getting an error when I build hello world example:
ANSWER
Answered 2021-Apr-01 at 11:17Ahaha it worked! this is so awesome! Yes just follow the tutorial and for me that was doing go mod init test3 to create a module. No one else has been upgrading from old version or everyone else just understood it properly I guess.
QUESTION
In my project, I am trying to tie together Django and React.
index.html
...ANSWER
Answered 2021-May-20 at 21:31Your HTML file has no
QUESTION
I've a pretty simple CRUD for a Task list, and so far I'm able to Create, List all, List by ID and Delete records, bu when I try to update, it gives me the following error:
...ANSWER
Answered 2020-Nov-20 at 19:32Well, it's a workaround, probably I will be opening an issue on Gorm's Github because I don't think that this is the right way of doing it, the only thing that I'd to do is convert from UpdateListInput struct to a variable of map[string]interface{} using reflect package
Here's my controller:
QUESTION
I am confused about how to layout my Go project and then how to build it. I am reasonably new to Go and believe there was a time <1.13 where the GOPATH was important. I am using 1.14, so I believe I do not have to care about that and GOPATH is not set. I do not (for the moment) host my code on GitHub (which is something various articles assume). I have read a number of things, but it all leaves me more confused:
- https://golang.org/cmd/go/#hdr-Compile_packages_and_dependencies
- https://www.wolfe.id.au/2020/03/10/starting-a-go-project/
- https://talks.golang.org/2014/organizeio.slide#1
I have laid out my project according to this: https://github.com/golang-standards/project-layout. (Except this project seems to use a Makefile. I do not want to write a Makefile. I believe this should all work without a Makefile. I really do not want to write a Makefile.)
Here is the structure:
...ANSWER
Answered 2020-Oct-18 at 02:35When you run go build without specifying file path, it will look for the main function inside any .go files at current directory to start. It doesn't build entire project. But it wouldn't be a problem in this case.
You're importing wrong package. The package name to import must be mycompany/mymodule/internal not mycompany/mymodule/internal/helper.
And to invoke a function inside another package, it must be exposed to outside.
So you have to declare the function greet() as Greet()
QUESTION
According to Bitnami's documentation, I've followed their desired steps
- Enable WSGI configuration for the Django application
- Enable predefined virtual hosts for a Django project
- Configure Django project for public access
- Create a custom virtual host
In the end of the documentation, it states
You should now be able to browse to your project at http://SERVER-IP/PROJECT/APP.
In this case
SERVER-IP: 35.178.211.120
PROJECT: tutorial
APP: hello_world
If I go to the following locations
I get Internal Error 500. If I check the logs /home/bitnami/stack/apache2/logs
...[Tue Sep 29 18:33:16.858668 2020] [wsgi:error] [pid 1473] [remote 109.51.236.49:57609] ModuleNotFoundError: No module named 'PROJECT'
ANSWER
Answered 2020-Sep-29 at 18:51In that specific documentation it says to use similar code to
QUESTION
Hi guys I was just following this tutorial (https://realpython.com/get-started-with-django-1/) to integrate a projects application for my Django portfolio-site project.
Everything was going well with the set up until I tried to log in to admin page of Django to add more objects to my Project model in the database.
After I click add, it return me an error page and it says like this:
Error return page [1]: https://i.stack.imgur.com/co1Cy.png
Traceback
...ANSWER
Answered 2020-Jun-21 at 19:59In model Project image field:
Should be project/img not projects/img
QUESTION
INTRO
- I am following this guide as recommended, here is the guide's GitHub repo.
- I have created an AmazonS3FullAccess to it as well
- I am using the guide's 3rd example "Mixing public assets and private assets" with static, media public, media, private version.
- If the user log in (local development environment) he Upload Files from the website but he can NOT access them from the website only from the AWS S3 management website.
- Currently I am blocking all public access as it is in the guide (AWS S3 management panel settings)
- I have added these lines to my CORS configuration editor from this other guide
ANSWER
Answered 2020-Apr-27 at 01:46In the AWS console, click the "Permissions" tab, then on the
- allow public access to your bucket -> Save -> Confirm it
- "Bucket policy" button. An editing box will appear. Replace the "arn:aws:s3:::" in the editing box with the part starting with "arn:" shown above your editing box, but be careful to preserve the "/*" at the end of it. Use the following code bellow. Paste in the following:
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