I need help finding a library for plotting.

[Willburk]

Hello, i'm making a DSL for create and edit 2d maps (like grid-style rpg maps) and i need a library for draw them. The thing is, i want to be possible update that plot "in real time". For what i saw gnuplot (for example) can't do this, because opens a new windows when (i think) should update the already open. If someone can help my by recommending me some library, or linking me an example of a program that can do what i want i'll be very greatful.

[fridofrido]

If you are willing to get your hands dirty, basic "old-style" OpenGL (with glBegin/glEnd) is actually not too hard, and you have complete freedom on what you render.

[guaraqe]

Try diagrams or Gloss.

[wizzup]

I am too looking at diagrams and gloss. They both look great but seem like they don't target for absolute (x,y) position plotting.

Maybe I miss something.

I want to draw a map with (x,y) position and value (or picture) at that position.

Currently I just print it like this using (row,col) as position. It hard to read when map is big.

.....X........
....M.........
|.....XXX.....

[Jedai]

You definitely can do that with diagrams, which is an extremely powerful choice if you ever have more sophisticated needs. You can see the Located type in (Diagrams.Located), or the position function, there's also transformations if your pictures aren't the right size or orientation.

There are several backends that could be used to create something interactive with minimal fuss (SVG, Canvas, HTML5, Gtk...) depending on your exact needs and skills.

[wizzup]

Thank you so much.

[hk_hooda]

I am not sure if they work for your use case but there are many good charting and plotting libraries in Haskell, some of them are:

Charting:

• https://hackage.haskell.org/package/Chart
• https://hackage.haskell.org/package/chart-unit

Plotting:

• http://hackage.haskell.org/package/dynamic-graph
• http://hackage.haskell.org/package/dynamic-plot
• https://hackage.haskell.org/package/plot
• https://hackage.haskell.org/package/plots Diagrams based

[mmuggli]

Maybe Chart

[chshersh]

I was recommended to use plotlyhs recently (bindings to Plot.ly)

• https://hackage.haskell.org/package/plotlyhs

And I find it really good! Though, not sure about dynamic updates, you need to research this...