Really Struggling

[jc78]

Hello all,
First and foremost, I'm a complete n00b to react and webpack. But I'd really like to use react-diagrams in my project, but can't seem to get it to render properly.

Here is what I've done so far:

1. cd into my project folder
2. ran npm install --save storm-react-diagrams
3. Created a new page on my site and added the following code to it:

import React, { Component } from 'react';

import {
	DiagramEngine,
	DiagramModel,
	DefaultNodeModel,
	LinkModel,
  DefaultPortModel,
  DiagramWidget,
  DefaultLinkModel
} from "storm-react-diagrams";


//1) setup the diagram engine
var engine = new DiagramEngine();
engine.installDefaultFactories();

//2) setup the diagram model
var model = new DiagramModel();

//3-A) create a default node
var node1 = new DefaultNodeModel("Node 1", "rgb(0,192,255)");
var port1 = node1.addPort(new DefaultPortModel(false, "out-1", "Out"));
node1.x = 100;
node1.y = 100;

//3-B) create another default node
var node2 = new DefaultNodeModel("Node 2", "rgb(192,255,0)");
var port2 = node2.addPort(new DefaultPortModel(true, "in-1", "IN"));
node2.x = 400;
node2.y = 100;

//3-C) link the 2 nodes together
var link1 = new LinkModel();
link1.setSourcePort(port1);
link1.setTargetPort(port2);

//4) add the models to the root graph
model.addNode(node1);
model.addNode(node2);
model.addLink(link1);

//5) load model into engine
engine.setDiagramModel(model);

class SandboxPage extends Component {
  render() {
    return (
      <div>
        <DiagramWidget diagramEngine={engine} />
      </div>
    );
  }
}

export default SandboxPage;

But the page renders like this:

I pretty much copied the code from the simple demo example, but obviously, something is wrong.

Any help would be appreciated.

[ehmadzubair]

I used this library about 4 months ago and ran into the same issue. I think you're not importing the sass file from the src/sass folder.

[ehmadzubair]

@jc78 please look at this too #100

[jc78]

Thanks for responding @ehmadzubair. Unfortunately, importing the sass didn't work for me. The graph still looks broken as above.

After doing a little bit more digging, I'm wondering if I need to do something to the typescript files? Or should those load automatically from the node_modules\storm-react-diagrams folder? Do I need to compile them?

[dylanvorster]

@ehmadzubair strange, thats definitely a styles issue. There is also a .css file that gets generated and shipped with the dist folder as well as a transpiled e2015 version of the project in that file as well. You can also clone the project and run (after running yarn install) yarn run test:ci which will generate sandboxed versions of the demo in the dist folder -> e2e. You might have some luck looking at those sandboxed demos.

[ehmadzubair]

I agree with @dylanvorster, the file was in the dist folder, and it was a .css file. I did this 4 months ago, so my memory was a little fuzzy

[dylanvorster]

Sorry @ehmadzubair I meant to tag @jc78 but thanks for also assisting :)

[jc78]

So, after importing the css file from dist instead, I did notice a change in the way the graph rendered. Unfortunately, that change is a completely blank graph.
import "storm-react-diagrams/dist/style.css";

I see no errors in the npm output or chrome's console. Just to be sure, I commented out the import css line and the graph went back to rendering like the original image I submitted.

Here's my latest component file code. I'm importing the component into a separate page js file, using react-router to serve my pages.

import React, { Component } from 'react';
import {
	DiagramEngine,
	DiagramModel,
	DefaultNodeModel,
	LinkModel,
  DefaultPortModel,
  DiagramWidget
} from "storm-react-diagrams";

import "storm-react-diagrams/dist/style.css";


//1) setup the diagram engine
var engine = new DiagramEngine();
engine.installDefaultFactories();

//2) setup the diagram model
var model = new DiagramModel();

//3-A) create a default node
var node1 = new DefaultNodeModel("Node 1", "rgb(0,192,255)");
var port1 = node1.addPort(new DefaultPortModel(false, "out-1", "Out"));
node1.x = 100;
node1.y = 100;

//3-B) create another default node
var node2 = new DefaultNodeModel("Node 2", "rgb(192,255,0)");
var port2 = node2.addPort(new DefaultPortModel(true, "in-1", "IN"));
node2.x = 400;
node2.y = 100;

//3-C) link the 2 nodes together
var link1 = new LinkModel();
link1.setSourcePort(port1);
link1.setTargetPort(port2);

//4) add the models to the root graph
model.addNode(node1);
model.addNode(node2);
model.addLink(link1);

//5) load model into engine
engine.setDiagramModel(model);

class ActionGrid extends Component {
  render() {
    return (
      <DiagramWidget diagramEngine={engine} />
    );
  }
}

export default ActionGrid;

[jc78]

I'm also still a little confused about role of the typescript files. Are those files that I need to process\compile or deal with after I run npm install storm-react-diagrams? Or can I essentially not worry about the fact they're .ts.tsx files instead of .js files?

I did notice a tsx loader in the library's webpack.config.js file, but I wasn't sure if that meant I needed to add a similar loader to my webpack.config.js file?

[winston-bosan]

@jc78 I am fairly certain in the 5.0 update that, there is only an minimised version of the style sheet.
So instead of import "storm-react-diagrams/dist/style.css" , you should have import 'storm-react-diagrams/dist/style.min.css' instead.

[emero]

@jc78 please check if your diagram container has any height. In addition to loading sass file I had to manually force the container to have some height.

[richnotwealthy]

@jc78 @emero I also came to the same solution. The container of my component did not have the correct height. Try using height: 100vh; on the immediate container of the DiagramWidget! (uses viewport height instead of container's height, like 100% would)