Legend | Legend：Java架构师的修炼之路，没有捷径奋勇向前。 | Canvas library

My chart y labels are cut off and by trying different solution found on stackoverflow like adding spaces in labels or setting layout padding did not solved the problem.

The code

I've built this new ggplot2 geom layer I'm calling geom_triangles (see https://github.com/ctesta01/ggtriangles/) that plots isosceles triangles given aesthetics including x, y, z where z is the height of the triangle and the base of the isosceles triangle has midpoint (x,y) on the graph.

What I want is for the geom_triangles() layer to automatically provide legend components for the height and width of the triangles, but I am not sure how to do that.

I understand based on this reference that I may need to adjust the draw_key argument in the ggproto StatTriangles object, but I'm not sure how I would do that and can't seem to find examples online of how to do it. I've been looking at the source code in ggplot2 for the draw_key functions, but I'm not sure how I would introduce multiple legend components (one for each of height and width) in a single draw_key argument in the StatTriangles ggproto.

I'm trying to pivot to a longer format using dplyr::pivot_longer, but can't seem to get it to do what I want. I can manage with reshape::melt, but I'd also like to be able to achieve the same using pivot_longer.

The data I'm trying to reformat is a correlation matrix of the mtcars-dataset:

I was wondering if anyone knows a way to combine a table and ggplot legend so that the legend appears as a column in the table as shown in the image. Sorry if this has been asked before but I haven't been able to find a way to do this.

Edit: attached is code to produce the output below (minus the legend/table combination, which I am trying to produce, as I stitched that together in Powerpoint)

Here is a gradient color legend I created using rasterImage:

Consider the plot produced by the following reprex. Note that the ggplot has sensible legends, while in plotly, the legend is heavily duplicated, with one entry for each time the same category ("manufacturer") appears in each facet. How do I make the plotly legend better match that of the ggplot2 one?

I Generates a checkbox list from the map. Now how to set the value for the key (false / true) and now I can download it in UserConfig so that I can use this value in the rest of the project.

My view:

I borrowed the R code from the link and produced the following graph:

Using the same idea, I tried with my data as follows:

I am plotting some multivariate data where I have 3 discrete variables and one continuous. I want the size of each point to represent the magnitude of change rather than the actual numeric value. I figured that I can achieve that by using absolute values. With that in mind I would like to have negative values colored blue, positive red and zero with white. Than to make a plot where the legend would look like this:

I came up with dummy dataset which has the same structure as my dataset, to get a reproducible example: