remove node option to simplify installation

README.md

@@ -12,7 +12,6 @@ Some features:
 - Hotkey for SVG rendering
 - A builtin library of utilities for random numbers, geometry tools, SVG exporting, and other functions
 - Easy integration with Inkscape and AxiDraw v3
-- Plots can be rendered in Node.js instead of the browser, sometimes useful for huge print sizes where the browser may have more strict memory limits
 
 ## Quick Start
 
@@ -107,18 +106,9 @@ penplot plot.js --open
 
 # set the output folder for SVG/PNG files
 penplot plot.js --output=tmp
-
-# generate a PNG with Node.js
-penplot plot.js --node
-
-# write PNG to stdout
-penplot plot.js --node --stdout > file.png
-
-# write PNG to custom output folder
-penplot plot.js --node --output=tmp 
 ```
 
-## Node.js
+## Print Output
 
 You can also use this as a tool for developing algorithmic/generative art. For example, you can develop the artwork in a browser for LiveReload and fast iterations, and when you want to print it you can set the dimensions and output size like so:
 
@@ -139,12 +129,6 @@ export default function createPlot (context, dimensions) {
 }
 ```
 
-Then, use the `--node` flag to run the plot with `node-canvas`, assuming none of your code is browser-specific.
-
-```sh
-penplot my-plot.js --node --stdout > render.png
-```
-
 The `outputSize` option can be any of the following:
 
 - a string with DPI resolution like `'300dpi'` or `'72 DPI'`

bin/dev.js

@@ -25,6 +25,7 @@ function dev (args, argv, entries) {
   const isNode = argv.node;
   if (isNode) {
     process.env.IS_NODE = envVars.IS_NODE = '1';
+    throw new Error('The --node option has been removed in penplot@3.x');
   }
 
   if (isNode) {

package.json

@@ -117,8 +117,5 @@
   },
   "bin": {
     "penplot": "./bin/index.js"
-  },
-  "optionalDependencies": {
-    "canvas": "^1.6.5"
   }
 }