manuelluis
commented
5 years ago The initial idea was do the render of the graph in the browser translating the C code to javascript. The use of javascriptRRD (to get the rrdfiles) was only for testing I was hopping that rrdtool would come with some rest interface to get the data but this has not happened.
I really like the look of the rrdtools graphs, but with the domination of grafana seems complicated to see more tools using graphs with the look of rrdtool.
I there is some interest, I have some ideas:
- use WASM to increase the speed
- make the svg graph more interactive: show data when select a line or area.
- define a yaml/json to represent the graph instead of the rrdtool syntax.
- diverge from rrdtool graph. For example, the areas: you cannot specify the color of the line and the color of the area at the same time, rrdtool is painting a line and a area and this complicates the interactivity of the graph.
Also there is some libraries in javascript that use d3.js to graphs with the look and feel of rrdgraph, like: https://github.com/oetiker/RrdGraphJS
The add of more CDEF functions it's not complicated. The STACK was not added because it was deprecated.
An interesting idea, are there plans to develop the project further? Under the new version of the RRD, more complex CDEF functions, STACK support etc ?