cartographer | provides real-time simultaneous localization | Robotics library
kandi X-RAY | cartographer Summary
kandi X-RAY | cartographer Summary
Cartographer is a system that provides real-time simultaneous localization and mapping (SLAM) in 2D and 3D across multiple platforms and sensor configurations.
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QUESTION
In my Windows Form app, I was able to build my SQLite connection string like this (after adding the .db file to my project via Add > Existing Item):
...ANSWER
Answered 2020-Dec-09 at 07:53For read-write access to a file packaged as part of your app, you will need to copy it to your ApplicationData.LocalFolder
directory on first-run of your app, and then you can update it from there. Then you can use the LocalFolder.Path
property to initialize your connection string with the correct location. The original file will be located inside your Package.InstalledLocation
.
Here is a basic sample, using a helper class that you can use to copy any file from an arbitrary place in your package into a mirrored place in your local folder, and then return the resulting filename.
The sample is async in case you're copying large files during startup etc. but it can trivially be made sync if you only ever need files from your package directory. Also, even though the API is async, is 100% safe to block on it if you want (as illustrated below).
QUESTION
I am building a web application in NodeJS version 12. I have data from an old MySQL database. There are several fields that contain characters that are not displaying properly due to an encoding issue with the old database. There are some similar questions already but none of them have solved my issue. After trying, I'm a little closer to a solution, but still need help on this.
Current value in database to convert:
...ANSWER
Answered 2019-Jun-27 at 19:30I solved this by using the windows-1252 module to encode the original text and then decoded it using the iconv-lite module.
QUESTION
I need help removing emojis. I looked at some other stackoverflow questions and this is what I am de but for some reason my code doesn't get rid of all the emojis
...ANSWER
Answered 2018-May-05 at 21:21There is no technical definition of what an "emoji" is. Various glyphs may be used to render printable characters, symbols, control characters and the like. What seems like an "emoji" to you may be part of normal script to others.
What you probably want to do is to look at the Unicode category of each character and filter out various categories. While this does not solve the "emoji"-definition-problem per se, you get much better control over what you are actually doing without removing, for example, literally all characters of languages spoken by 2/3 of the planet.
Instead of filtering out certain categories, you may filter everything except the lower- and uppercase letters (and numbers). However, be aware that ꙭ is not "the googly eyes emoji" but the CYRILLIC SMALL LETTER DOUBLE MONOCULAR O, which is a normal lowercase letter to millions of people.
For example:
QUESTION
I'm trying to make an eraser tool that can erase points from a GraphicsPath
. So far, my code lets the user paint on the form, and the "Erase" button is supposed to erase the first 20 points of the GraphicsPath
. It works until two distinguishable drawings are made then the "Erase" button is pushed - as seen in the images, the two drawings connect. I suspect that the GraphicsPath
closes itself (connecting each point).
Is there a way to prevent the GraphicsPath
from connecting each point?
Here is my full code. I think the most relevant part is the function at the bottom.
...ANSWER
Answered 2017-Dec-07 at 00:00When you erase the points from the path you are doing so by copying them to a new path, excluding the ones you want to erase. But you are not also copying the corresponding point type information from the first path; instead you are resetting all the point types to 1, for whatever reason. This loses the information about where each figure within the path starts. So what happens is the new path sees one long connected figure, which explains what you are seeing.
If you want to erase the first n points from the path, you might try something like this instead:
QUESTION
Even after doing git add -A, when I run git status, I get this:
...ANSWER
Answered 2017-Oct-11 at 04:47This has nothing with the -A
option: modified content, untracked content means those folders are submodules.
Those sub-repos includes files which are either untracked, or modified.
You would need to:
- go into those directories,
- add and commit there, (and push to their respective remote, assuming those changes must be contributes back to their upstream repos),
- then go back to the parent repo, add and commit again in order to record the new gitlink (special entry in the parent index, recording the new SHA1 of those submodules)
But if those changes are purely local and can be ignored (meaning anyone cloning again your repo with you current changes would still be able to make your program work without any of the changes in the submodules), then you can ignore the git status
output.
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