RasterVis | interactive web-based neuroscience app | Data Visualization library

I'm trying to fix the position of some text in a rasterVis::vectorplot so that it stays in the same position even if I change the width and height of the png file.

I tried using the margin parameters of par but with no luck.

This is an example of what I got so far:

I am attempting to plot an image composed of a stack of raster images. Using reproducible data:

I am using the awesome rasterVis to create a panel with maps that have the same extent (i.e. same spatial coverage) but that show different features (i.e. each with its own legend).

This is what it looks like so far:

I am attempting to plot a world map of aerosol height data pulled from the Sentinel 5 Precursor/TROPOMI level 2 data from the data hub available here on dropbox.

I am specifically looking at Hawaii (5-30 degree N, 130-180 degree W) and am attempting to plot the aerosol height which is in netcdf4 (.nc) format.

I would like to realize a plot of raster binary map using ggplot2 and also I would like to add as background a stamen map using ggmap. Following different posts I realize these code lines: '

With ggquiver::geom_quiver() we can plot vector fields, provided we know x, y, xend, and yend.

1. How can I calculate these parameters for an arbitrary RasterLayer of elevations?
2. How can I ensure that the size of these arrows indicates the slope for that particular vector such that the arrows appear different lengths proportional to the gradient at that location (e.g., the first plot below)?

I am trying to create map by overlaying a polygon shape file over a raster layer using rasterVis package. I am able to perform this function with no problem with plot() function in raster package but I'd like to customize the colors. For some reason the levelplot() doesn't allow me to overlay raster and polygons. My first attempt was:

levelplot(raster, margin=FALSE, col.regions=viridis, at=seq(0,1, len=100)+ layer(sp.polygons(polygon)))

and I get these error: Error in +.trellis(seq(0, 1, len = 100), layer(sp.polygons(polygon))) : inherits(object, "trellis") is not TRUE

Then I tried using latticeExtra:

levelplot(raster, margin=FALSE, col.regions=viridis, at=seq(0,1, len=100)+ latticeExtra::layer(sp.polygon(polygon)))

I get the same error as above. I also tried other proposed solutions such as running the line dev.off()and restarting R and I get:

Error in dev.off() : cannot shut down device 1 (the null device)

And finally I tried detaching ggplot2 but I still get the same "trellis" error message. I don't know how to interpret this error message. I double-checked that both files had the same CSR just in case that was the problem. Also, note that the raster layer is plotted with no problem adding the polygon produces the error. Any ideas?

I am trying to display the following classic NetCDF data Data Link Click Here. This data has 38 variables trajectory data and i am trying to extract one of them "air temp". Though i am able to extract the data but unfortunately i am not able to display the data in R using plot. The display should be like the following figure , which i plotted in panoply. Another problem is that i am not able to stack all the data since the trajectories are all different. Is there any way i could display and stack all the files of one variable.

I have plotted a stack of raster using the function 'levelplot' script as below: