gauges | Pretty gauges for your rails | Application Framework library

I just wanted to move from bootstrap 3 to bootstrap 4 in order to get equally sized divs in a row thanks to flexbox. I downloaded the precompiled files from https://getbootstrap.com/docs/4.6/getting-started/download/.

Then I put them in my static folder and ran manage.py collectstatic on my django project. I included them as links in my file.

The rendered html looks like this (I only reduced it for readibiity):

this might be a self explanatory question , but I wanted to know how or if I can implement an if query in my HTML code in Angular in the app.component.ts file. My plan is as follows:

info.page.ts:

Firstly, i have minimum programming knowledge and just trying it to show something on my website. i need to show two gauges in my page where both will have different needle values. Now i was successful to find a code displaying a gauge in d3 where i was able to set the value. However when when i duplicate the div and the script to show two different gauges, both gauges are being rendered in second div even when i have kept ids for both divs and gauges different. here is my code

I am trying to load data from a websocket to show on a gauge using knockout and gaugeMeter.js. I keep getting the "cannot apply bindings multiple times to the same element" error. Here is the code HTML

Is there a way to listen out for the /metrics endpoint when using https://quarkus.io/guides/micrometer?

I'd like to gather some metrics that require calling on a different API... and rather not set up a schedule (https://quarkus.io/guides/scheduler-reference)...

Example:

• I query the Kubernetes API for some custom resource
• I then want to update some gauges with different tags

First /metrics gives us:

I'm trying to make a vertically scrolling flexdashboard. Sometimes, the vertical scroll doesn't work properly and lower graphs are cut off. This can be "fixed" by making the window narrower, and then it will scroll, however clearly this isn't an acceptable solution.

The code is below, as well as a screenshot of the poor scrolling. You can see that the contents of the final graph is cut off. I've also included a picture of the desired scrolling behaviour. I'm aware the code snippet is a bit long, however of course the scrolling behaviour is only apparent with a suitable number of graphs.

Here is the desired scrolling behaviour:

Here is the clipped scroll bar and hidden graph which is obtained:

Background: I am running TeslaMate/Grafana for monitoring my car status, one of the gauges plots the battery level fetched from database. My server is located remotely and running in a Dock from an old NAS, so both query performance and network overhead matters.

I found the koisk page frequently hangs and by investigation, it might caused by the query -- two of the plots returns 10~100k rows of results from database. I want to limit the number of rows returned by SQL queries, as the plots certainly don't have that much precision for drawing such detailed intervals.

I tried to follow this answer and use row_number() to pop only 100-th rows of results, but more complicated issues turned up, that is, the time intervals among rows are not consistent.

The car has 4 status, driving / online / asleep / offline.

1. If the car is at driving status, the time interval could be less than 200ms as the car pushes the status whenever it has new data.
2. If the car is at online status, the time interval could be several minutes as the system actively fetches the status from the car.
3. Even worse, if the system thinks the car is going to sleep and need to stop fetching status (to avoid preventing the car to sleep), the interval could be 40 minutes maximum depend on settings.
4. If the car is in asleep/offline status, no data is recorded at all.

This obviously makes skipping every n-th rows a bad idea, as for case 2-4 above, lots of data points might missing so that Grafana cannot plot correct graph representing the battery level at satisfactory precision.

I wonder if there's any possible to skip the rows by time interval from a datetime field rather than row_number() without much overhead from the query? i.e., fetch every row with minimal 1000ms from the previous row.

E.g., I have following data in the table, I want the rows returned are row 1, 4 and 5.

i am working on a dashboard skin that recieves data from a game through a plugin. now have i stumbled upon a problem. the rpm gauge isn't perfect. the 0 to 5 on the gauge is on a smaller angle than 5 to 10 is. now am i trying to find a way to set 5 to a specific angle. i have a min angle of -125 and a max angle of 125. so 0 = -125 and 5 = -90 but 10 = -40 so the angle from 0 to 5 is 35 degrees and from 5 to 10 it is 50 degrees. i only have a html code and a css (css for the gauge needle placement)

html:

I am working on a charting library, and i use GD to draw the charts and gauges. This all works great, but i would like to have the possibility of a transparent background. I finally got that working, but now i come across a new question.

To draw complex gauges, i draw multiple shapes over each other. Like when i need a donut pie chart, i draw a regular pie chart - and then i draw a center ellipse, giving the impression of being a donut. This works great when there is a background color like white, or any other color. When using a transparent background, this draws the pie and everything as it should - i draw the donut center, but i cant turn the center to transparent.

Pie Chart:

Donut Chart:

I cant get the center (white) to be transparent, i dont want to draw the center with alpha transparency as the pie would shine through - but i want to replace the white with transparent pixels.

I tried imagecolortransparent($image, $white); but cant get it to work. Anyone that can point me in the right direction, or possibly can tell me if it is possible at all.