ytop | A TUI system monitor written in Rust | Command Line Interface library
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kandi X-RAY | ytop Summary
A TUI system monitor written in Rust
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QUESTION
I need to change style of multiple divs on click of a button that have the same name.I have the button where I create div with image.
This is code for creating the div
...ANSWER
Answered 2022-Jan-25 at 09:13You should use document.getElementsByClassName('')
That way all the divs with the class name will be affected by the event.
QUESTION
I have two variables and I need to add number on value that is already inside variable every time when I click on button.
This is my code:
...ANSWER
Answered 2022-Jan-24 at 08:34HTML:
QUESTION
I'm using Hero widget to pop up a selector page where you can select your preferred color to use as background. If I tap on "Change color!" then the main page container background changes perfectly, but on the selector page it remains in the build "state". After closing and reopening my selector page, then - of course - the background will filled with the good color...
Any idea?
...ANSWER
Answered 2021-Dec-02 at 09:08Wrap your pageBuilder's Container with Scaffold widget, it will solve the issue. It is just overlaying with main widget.
QUESTION
I'm using the tesseract R package to recognize text within an image file. However, when plotting the bounding box for a word, the coordinates don't seem to be right.
...ANSWER
Answered 2021-Oct-15 at 11:19This is simply because the x, y co-ordinates of images are counted from the top left, whereas rect counts from the bottom left. The image is 480 pixels tall, so we can do:
QUESTION
currently I'm trying to translate some Code from C to C# and I'm running into some problems. Beacause I'm a C# programmer and have no idea of C I have to ask something here (found nothing that answers my question). I have following piece of Code in C:
...ANSWER
Answered 2021-Sep-01 at 20:54short ytop[W]={0} declares ytop to be an array of W elements of type short and explicitly initializes the first of them to zero. The remaining elements are default initialized, which also initializes the elements to zero. (This is an idiom in C because defining an array with short ytop[W]; inside a function would not initialize it at all; the element values would be indeterminate. Explicitly initializing one of them triggers default initialization of the rest.)
In if(++head == queue+MaxQueue) head = queue;, ++head does two things:
- It increments the stored value of
head. - For the purpose of evaluated the rest of the expression, the value of
++headis the value ofheadwith the increment included.
Two notes about this:
if(++head == queue+MaxQueue) head = queue;is largely the same as doing the increment first,head = head + 1;and thenif(head == queue+MaxQueue) head = queue;. However, there are technical details in C semantics that differ; the actual update to memory of the value ofheadis not necessarily synchronous with the evaluation of the expression.- When one is added to a pointer, the result is a pointer to the next array element in memory, not the next byte in memory. The type of the pointer is used to know what kind of element it points to and how big that element is.
queue+MaxQueue produces a pointer that points MaxQueue elements beyond where queue points. If queue is an array or a pointer to the start of an array, and MaxQueue is the number of elements in the array, this points to just beyond the last element of the array. That is okay; we are allowed to point to the “end” of the array in this way, to use it as a marker for the end position.
In ++renderedsectors[now.sectorno];, renderedsectors[now.sectorno] is the element of renderedsectors that has index now.sectorno. The ++ increments its stored value.
QUESTION
i have featureCollection in an object named geojsonObjectAsStringas shown below. originally, that object is of type dictionary and i converted it via
ANSWER
Answered 2021-May-26 at 07:10An easy way to do this is to parse the json string in a CTE and in a separated query properly filter the records, e.g. selecting from the feature collection only the geometry which treeID in properties is equal to 99:
QUESTION
i would like to query the coordinates in a separate column. in other words,i would like the below stated query is to be able to include the coordinates which is in the geometry' object. i managed to make the query able to return the values of type, properties, and the geometry` which is a geojson object.
given the below posted geojsonObjectAsJSON, please let me know how can i query the coordinates values
code:
...ANSWER
Answered 2021-May-26 at 04:48Use ST_DumpPoints to access every point of your polygons, then ST_X and ST_Y to get the lontitude and latitude values, after that group it again by the gid created with row_number(). Something like:
QUESTION
i would like to know how to query the contents of FeatureCollection. as shown below the object geojsonObjectAsJSON contains data and i would like to write a query that able to show for example the features array or for example
to show the properties in the feature number 2 "with index 1"
how can i write such queried.
the code below displays the entire contents of the object geojsonObjectAsJSON
code:
...ANSWER
Answered 2021-May-25 at 13:56Considering that you're parsing an array of FeatureCollections, which are also sort of arrays, you might wanna try the following approach. Within a CTE first extract all FeatureCollections, then in another CTE or in a subquery extract the geometries from each collection and finally apply the filter you want, e.g.
QUESTION
I created a Package. It's a function I need to use in almost every Tkinter project of mine. It centers my Tkinter window on the screen of the user. How do I make it like a global package like "import pandas" or "import math"?
This is the code for my package: MyPkg.py
...ANSWER
Answered 2021-May-12 at 12:39On a unix machine adding your module to /usr/lib/python3.9/ or one of the other paths where python searches for modules would do the trick. Hopefully doing the equivalent of that on windows should work (The path will of course not be the same tho).
Note: This sort of stuff is more common in languages like C which don't have package managers like pip.
QUESTION
First off, sorry for the length of the post.
I'm working on a project to classify plants based on an image of the leaf. In order to reduce the variance of the data I need to rotate the image so the stem would be horizontally aligned at the bottom of the Image (at 270 degrees).
Where I am at so far...
What I have done so far is to create a thresholded image and from there find contours and draw an ellipse around the object (in many cases it fails to involve the whole object so the stem is left out...), after that, I create 4 regions (with the edges of the ellipse) and try to calculate the minimum value region, this is due to the assumption that at any of this points the stem must be found and thus it will be the less populated region (mostly because it will be surrounded by 0's), this is obviously not working as I would like to.
After that I calculate the angle to rotate in two different ways, the first one involves the atan2 function, this only requires the point I want to move from (the centre of mass of the least populated region) and where x=image width / 2 and y = height. This method works in some cases, but in most cases, I don't get the desired angle, sometimes a negative angle is required and it yields a positive one, ending up with the stem at the top. In some other cases, it just fails in an awful manner.
My second approach is an attempt to calculate the angle based on 3 points: centre of the image, centre of mass of the least populated region and 270º point. Then using an arccos function, and translating its result to degrees.
Both approaches are failing for me.
Questions
- Do you think this is a proper approach or I'm just making things more complicated than I should?
- How can I find the stem of the leaf (this is not optional, it must be the stem)? because my idea is not working so well...
- How can I determine the angle in a robust way? because of the same reason in the second question...
Here are some samples and the results I'm getting (the binary mask). The rectangles denote the regions I'm comparing, the red line across the ellipse is the major axis of the ellipse, the pink circle is the centre of mass inside the minimum region, the red circle denotes the 270º reference point (for the angle), and the white dot represents the centre of the image.
My current Solution
...ANSWER
Answered 2021-Apr-23 at 21:58Here's what I mean, and this needs to be refined. This draws an imaginary line through the image center every 5 pixels along the top edge, and then every 5 pixels along the left edge, adds up the pixel values on both sides of the line, and prints the min and max ratios. The fourth value of the tuple should be the angle of rotation.
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