3a85e45439
* make live version render single-point paths the same as preview does * implemented smoothing in server side rendering * separate preview from export * ensure correct handling of paths with only one child * break out rendering of 3rd point and up into separate function * changed test for 2 points to math current implementation and added a test for a bezier curve with 3 lines * deduplicate code to extrapolate points for bezier curves * fix merge * Factor more code between the client and the server Completely remove the straight line approximation foor paths Vastly improve preview performance * Add support for opacity in preview * Stream board previews to the browser Previously, svg board previews were generated in memory and then pushed to the client. They are now streamed to the client without blocking the main thread. # Performance ## Before $ ab -n 30 -c 15 http://localhost:8080/preview/ic3 This is ApacheBench, Version 2.3 <$Revision: 1843412 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking localhost (be patient).....done Server Software: Server Hostname: localhost Server Port: 8080 Document Path: /preview/ic3 Document Length: 14352691 bytes Concurrency Level: 15 Time taken for tests: 19.499 seconds Complete requests: 30 Failed requests: 0 Total transferred: 430588920 bytes HTML transferred: 430580730 bytes Requests per second: 1.54 [#/sec] (mean) Time per request: 9749.374 [ms] (mean) Time per request: 649.958 [ms] (mean, across all concurrent requests) Transfer rate: 21565.33 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 0 0.1 0 0 Processing: 727 8885 1561.6 9220 9817 Waiting: 718 5380 2668.8 5569 9549 Total: 727 8885 1561.6 9220 9817 Percentage of the requests served within a certain time (ms) 50% 9220 66% 9239 75% 9245 80% 9248 90% 9560 95% 9811 98% 9817 99% 9817 100% 9817 (longest request) ## After $ ab -n 30 -c 15 http://localhost:8080/preview/ic3 This is ApacheBench, Version 2.3 <$Revision: 1843412 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/ Benchmarking localhost (be patient).....done Server Software: Server Hostname: localhost Server Port: 8080 Document Path: /preview/ic3 Document Length: 14352687 bytes Concurrency Level: 15 Time taken for tests: 17.647 seconds Complete requests: 30 Failed requests: 0 Total transferred: 430588020 bytes HTML transferred: 430580610 bytes Requests per second: 1.70 [#/sec] (mean) Time per request: 8823.254 [ms] (mean) Time per request: 588.217 [ms] (mean, across all concurrent requests) Transfer rate: 23828.86 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 0 0.1 0 0 Processing: 719 8212 1440.6 8657 8810 Waiting: 701 4666 2324.8 4788 8769 Total: 719 8212 1440.6 8657 8811 Percentage of the requests served within a certain time (ms) 50% 8657 66% 8670 75% 8691 80% 8790 90% 8802 95% 8808 98% 8811 99% 8811 100% 8811 (longest request) * Write the element id and opacity only when needed * Fix a bug in wbo_pencil_point * Rework the integration tests for the pencil tool * Test server-side rendering in integration tests * Remove unused function * Remove unused id fallback * set return types * fix rectangle * set fill for rect in stylesheet instead Co-authored-by: Ophir LOJKINE <pere.jobs@gmail.com> |
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|---|---|---|
| .github | ||
| client-data | ||
| server | ||
| server-data | ||
| tests | ||
| .gitignore | ||
| AUTHORS | ||
| docker-compose.yml | ||
| Dockerfile | ||
| LICENSE | ||
| nightwatch.conf.js | ||
| package-lock.json | ||
| package.json | ||
| README.md | ||
WBO
WBO is an online collaborative whiteboard that allows many users to draw simultaneously on a large virtual board. The board is updated in real time for all connected users, and its state is always persisted. It can be used for many different purposes, including art, entertainment, design, teaching.
A demonstration server is available at wbo.ophir.dev
Screenshots
| The anonymous board | 
| collaborative diagram editing | 
|
| teaching math on WBO | 
| drawing art | 
|
Running your own instance of WBO
If you have your own web server, and want to run a private instance of WBO on it, you can. It should be very easy to get it running on your own server.
Running the code in a container (safer)
If you use the docker containerization service, you can easily run WBO as a container.
An official docker image for WBO is hosted on dockerhub as lovasoa/wbo.
You can run it with the following command :
docker run -it --publish 5001:80 --volume $(pwd)/wbo-boards:/opt/app/server-data lovasoa/wbo:latest
This will run WBO :
- on port 5001
- persisting the user data in
$(pwd)/wbo-boards
You can then access WBO at http://localhost:5001.
Running the code without a container
Alternatively, you can run the code with node.js directly, without docker.
First, download the sources:
git clone git@github.com:lovasoa/whitebophir.git
cd whitebophir
Then install node.js (v10.0 or superior) if you don't have it already, then install WBO's dependencies:
npm install --production
Finally, you can start the server:
PORT=5001 npm start
This will run WBO directly on your machine, on port 5001, without any isolation from the other services.
Running WBO on a subfolder
By default, WBO launches his own web server and serves all of its content at the root of the server (on /).
If you want to make the server accessible with a different path like https://your.domain.com/wbo/ you have to setup a reverse proxy.
See instructions on our Wiki about how to setup a reverse proxy for WBO.
Troubleshooting
If you experience an issue or want to propose a new feature in WBO, please open a github issue.