0.4.3 • Public • Published


Congrats, you've made it to the repo for Teselagen's Open Source Vector Editor Component

  • Built With React & Redux
  • Built for easy extensibility + embed-ibility
  • Customize the views to suit your needs



Demo: https://teselagen.github.io/tg-oss/ove/#/Editor

Get the desktop app: https://github.com/teselagen/ove-electron#installation-instructions

Cypress Tests Dashboard: https://dashboard.cypress.io/#/projects/1zj5vc/runs (you'll need to make a login with cypress)

OVE out in the wild (Who's using OVE):

Table of Contents

Upgrade Instructions for Major and Minor Versions

This repo follows semantic versioning (major/minor/patche)

The commit log can be seen here: https://github.com/TeselaGen/openVectorEditor/commits/master

Upgrade instructions for any major or minor change can be found here: Upgrade instructions

Using this module in React

Example CRA repo with OVE

Here is where you can see how to run the <Editor/> in a Create-React-App environment: https://github.com/tnrich/ove-react-demo-repo

If you clone that repo you can see it working and see how to set up the redux store/provider and initialize the editor. You should just clone it and run:

yarn start

Installation (react)

yarn add @teselagen/ove

Code (react)

Require the following components like:

import {Editor, RowView} from "@teselagen/ove"


To use the <Editor> component, you'll need to do a bit more work to set up a redux store. You can see an example repo where this works here: https://github.com/tnrich/ove-react-demo-repo

The <Editor {...editorProps}/> component gives you a full blown editor. It takes in a list of editorProps as detailed below.


This is a non-redux connected component that is easy to use:

    circular: true, // or set to false to get a linear view
    sequence: "gagagagag",
    features: [{ id: "lalala", name: "Mr Feature" }]
    //set visibilities as you please
    features: true,
    parts: true,
    cutsites: false,
    primers: true


A component used for viewing enzymes

    sequence: "ggtctc",
    reverseSnipPosition: 7,
    forwardSnipPosition: 11

Using this module outside of react apps (Universal):

The universal build can be used in any app with or without react. It corresponds to using the <Editor/> component in the React version. You will be able to customize the Editor just like in the react build, but you will not be able to use the individual components like <CircularView/> or <EnzymeViewer/>. For that you'll need to use React.

Installation (Universal)

via npm:

npm install @teselagen/ove

then add the links

<link rel="stylesheet" type="text/css" href="your-path-to-node-modules/@teselagen/ove/umd/style.css" />
<script type="text/javascript" src="your-path-to-node-modules/@teselagen/ove/index.umd.js.js"></script>

Or via CDN:

<link rel="stylesheet" type="text/css" href="https://unpkg.com/@teselagen/ove/style.css" />
<script type="text/javascript" src="https://unpkg.com/@teselagen/ove/index.umd.js"></script>

Full Example:

A full example of how to set up the unpkg/UMD demo can be seen here: https://github.com/TeselaGen/openVectorEditor/blob/master/demo/public/UMDDemo.html Demo here http://teselagen.github.io/openVectorEditor/UMDDemo.html

Code (Universal)

  const editor = window.createVectorEditor(yourDomNodeHere || "createDomNodeForMe", editorProps); /* createDomNodeForMe will make a dom node for you and append it to the document.body*/

Accessing the editor state:

const currentEditorState = editor.getState();
//you can view various properties of the alignment such as the selection layer using alignment.getState()

Demo (Universal): http://teselagen.github.io/openVectorEditor/


These props consist of hooks and editor config options that can be passed like so: <Editor {...editorProps}/> or as seen above like window.createVectorEditor(yourDomNodeHere, editorProps);

	shouldAutosave: true, //by default the editor does not autosave, setting this to true will trigger the onSave callback after any change to the sequenceData
	//supplying this function WILL make the editor FULLSCREEN BY DEFAULT
	handleFullscreenClose: () => {
		//do whatever you want here
		//UMD only:
		editor.close() //this calls reactDom.unmountComponent at the node you passed as the first arg
	onPreviewModeFullscreenClose: () => {}, //user defined handler for tracking when fullscreen is closed from preview mode
	showReadOnly: false, //default true
  disableSetReadOnly: true, //default false
	onSave: function(event, sequenceDataToSave, editorState, onSuccessCallback) {
		console.info("event:", event);
		console.info("sequenceData:", sequenceDataToSave);
		console.info("editorState:", editorState);
		// To disable the save button after successful saving
		// either call the onSuccessCallback or return a successful promise :)
		// return myPromiseBasedApiCall()
	onCopy: function(event, copiedSequenceData, editorState) {
		//the copiedSequenceData is the subset of the sequence that has been copied in the teselagen sequence format
		console.info("event:", event);
		console.info("sequenceData:", copiedSequenceData);
		console.info("editorState:", editorState);
		const clipboardData = event.clipboardData;
		//in onPaste in your app you can do:
		// e.clipboardData.getData('application/json')
	onPaste: function(event, editorState) {
		//the onPaste here must return sequenceData in the teselagen data format
		const clipboardData = event.clipboardData;
		let jsonData = clipboardData.getData("application/json")
		if (jsonData) {
			jsonData = JSON.parse(jsonData)
			if (jsonData.isJbeiSeq) {
				jsonData = convertJbeiToTeselagen(jsonData)
		const sequenceData = jsonData || {sequence: clipboardData.getData("text/plain")}
		return sequenceData
	beforeAnnotationCreate: ({ //also works for edits (!)
		annotationTypePlural, //features/parts/primers
		annotation, //annotation info
		props, //general props to the dialog
		isEdit //true if this is an edit instead of a create
	}) => {
		//a handler to hook into when annotations (features/primers/parts) are being created
	//regular click overrides, eg:
	featureClicked: ({annotation, event}) => {
		//do something here :)
	// orf/primer/translation/cutsite/translationDouble/deletionLayer/replacementLayer/feature/part/searchLayer xxxxClicked can also be overridden

	rightClickOverrides: { //override what happens when a given feature/part/primer/translation/orf/cutsite/selectionLayer/lineageLine gets right clicked
		//the general format is xxxxRightClicked eg:
		selectionLayerRightClicked: (items, {annotation}, props) => {
			return [...items, {
				//props here get passed directly to blueprintjs MenuItems
				text: "Create Part",
				onClick: () => console.info('hey!≈')
	PropertiesProps: {
		// the list of tabs shown in the Properties panel
		propertiesList: [
	ToolBarProps: {
			toolList: [
				//you can override a tool like so:
				{name: "downloadTool", Dropdown: () => {
					return "Hey!"
				// "oligoTool",
				// "viewTool",
				// "propertiesTool"
		StatusBarProps: {
			//these are the defaults:
			showCircularity: true,
  		showReadOnly: true,
			showAvailability: false
		onDigestSave: () => {} //tnr: NOT YET IMPLEMENTED


These are the options to the updateEditor() action (the most generic redux action we have)) and will cause the editor state stored in redux to be updated. Only the subset of options that are passed will be updated.


	//note, sequence data passed here will be coerced to fit the Teselagen data model (Teselagen JSON)
	sequenceData: { //Open Vector Editor data model -- https://github.com/TeselaGen/ve-sequence-parsers#format-specification
		sequence: "atagatagagaggcccg",
		features: [
				color: "#b3b3b3", //you can override the default color for each individual feature if you want
				type: "misc_feature",
				start: 0, //start and end are 0-based inclusive for all annotations
				end: 10,
				id: 'yourUniqueID',
				forward: true //ie true=positive strand     false=negative strange
		parts: []
	sequenceDataHistory: {}, //clear the sequenceDataHistory if there is any left over from a previous sequence
	sequenceDataHistory: {}, //clear the sequenceDataHistory if there is any left over from a previous sequence
	annotationVisibility: {
		features: false
	panelsShown: [
				id: "sequence",
				name: "Sequence Map",
				active: true
				id: "circular",
				name: "Circular Map",
				active: true
				id: "rail",
				name: "Linear Map",
				active: false
				id: "properties",
				name: "Properties",
				active: false
	caretPosition: 10,
	...additional editor props can be passed here [Example Editor State](./editorStateExample.js)

Setting Local Storage Persisted Values

Amino Acid Coloring

localStorage.setItem("aaColorType", localStorage.getItem("aaColorType") || "byFamily");

Data Model

The data model can be interactively inspected by installing the redux devtools for your browser: devtools Here is the top level editor state: Example Editor State

Feature Locations (aka Feature Joins)

Features can have multiple internal locations. You can see an example of a joined feature in the ./editorStateExample.js file linked above. They look like this:

	name: "GFP_with_locations"
	start: 10,
	end: 40,
	locations: [{
		start: 10, //this must match the .start property of the feature,
		end: 15
		start: 18, end: 19
		start: 35,
		end: 40 //this must match the .end property of the feature,

Protein Editor

OVE can be set up to view and edit proteins (Amino Acid sequences) as first class citizens. The protein editor can be seen here: http://teselagen.github.io/openVectorEditor/#/Editor?moleculeType=Protein

The editor supports Amino Acid sequences as well as DNA sequences! Protein sequence mode is enabled by calling updateEditor with a protein sequenceData object:

updateEditor(store, "DemoEditor", {
  sequenceData: tidyUpSequenceData(exampleProteinData, {
    convertAnnotationsFromAAIndices: true

the protein sequenceData object should look like so

	isProtein: true
	//either or both .proteinSequence (aa string) or .sequence (dna string) must be provided if isProtein: true
	//if only .sequence is provided, OVE will automatically compute the amino acids from the provided dna sequence
	//if only .proteinSequence is provided, OVE will automatically compute the degenerate DNA sequence from the provided aa string
	//if both .proteinSequence and .sequence are provided, then OVE will assume that the underlying
	//dna sequence maps to the provided aa string as long as sequence.length === 3 * proteinSequence.length
	proteinSequence: "mmhlrlfcillaavs...etc"
	sequence: "gtagagagagcca...etc" //optional!
	//if features or parts are provided to the editor, it is assumed that they will indexed to the underlying DNA sequence (0-based inclusive) , not to the AA indices .
	//You can use the helper util from @teselagen/sequence-utils tidyUpSequenceData to convertAnnotationsFromAAIndices if your protein data has
	//features/parts coming in as AA-indexed
	features: [{name: "testFeature1",
		start: 3, //start on AA 1
		end: 5 //end on AA 1
	parts: [{
		name: "myFakePart"
		start: 0, //start on AA 0
		end: 11 //end on AA 3

The usual onSave, onCopy, onCut handlers will now come back with a .proteinSequence field. You'll need to save/manipulate the protein sequence data however you do for dna sequences.

certain dna specific tools and annotations are automatically disabled when isProtein=true :

  • primers
  • orfs
  • translations
  • cutsites
  • sequence digestions
  • ...etc


Integrating your own alignment data (only necessary if not using the built in alignment creation tool)

Add a panel to the panelsShown prop like so:

const alignment = window.createAlignmentView(this.node, {
	id: "jbeiAlignment1", //give your alignment a unique id
	////optional! Use if you want a pairwise alignment:
	pairwiseAlignments: [  // this is an array of [referenceSequence, alignedSequence]
			{ //reference sequence must come first!
				sequenceData: {
					id: "FWER1231", //every sequenceData and alignmentData should have a unique id
					name: "GFPuv58",
					sequence:	"ttgagggg",
					features: [{id: "feat1", start: 2, end:4, name: "GFP CDS"}]
				alignmentData: {
					sequence:	"ttgag--ggg--" //this length should be the same as the below alignmentData length!
			},{ //aligned sequence must come second!
				sequenceData: {
					name: "GFPuv58",
					sequence:	"gagccgggtt"
				alignmentData: {
					sequence:	"--gagccgggtt" //this length should be the same as the above alignmentData length!
			{Alignment Track Data Here}, //reference sequence track (see Data Model below for specs)
			{Alignment Track Data Here}, //aligned sequence track (see Data Model below for specs)
			{Alignment Track Data Here}, //see Data Model below for specs
			{Alignment Track Data Here},
	////optional! Use if you want a multi-seq alignment:
	alignmentTracks: [
		{Alignment Track Data Here}, //see Data Model below for specs
		{Alignment Track Data Here},
		{Alignment Track Data Here},
	//additional view options:

	"alignmentAnnotationVisibility": {
        "features": true,
        "translations": false,
        "parts": true,
        "orfs": true,
        "orfTranslations": false,
        "axis": true,
        "cutsites": false,
        "primers": true,
        "reverseSequence": false,
        "fivePrimeThreePrimeHints": true,
        "axisNumbers": true
    "alignmentAnnotationLabelVisibility": {
        "features": true,
        "parts": true,
        "cutsites": false

Accessing the alignment state:

const currentAlignmentState = alignment.getState();
//you can view various properties of the alignment such as the selection layer using alignment.getState()

Alignment Track Data Model

Note: alignmentData.sequence is assumed to be the same length for EVERY track within an alignment run or a pairwise alignment sub-alignment!

alignmentData can contain "-" characters, whereas sequenceData should not. Sequence Data is the "raw" data of the sequence being aligned with features/parts/etc.

	//JBEI sequence 'GFPuv58'
	// chromatogramData: ab1ParsedGFPuv58,
	sequenceData: {
		id: "2",
		name: "GFPuv58",
	alignmentData: {
		id: "2",

Chromatogram Data

"chromatogramData": { //only if parsing in an ab1 file
      "aTrace": [], //same as cTrace but for a
      "tTrace": [], //same as cTrace but for t
      "gTrace": [], //same as cTrace but for g
      "cTrace": [0,0,0,1,3,5,11,24,56,68,54,30,21,3,1,4,1,0,0, ...etc], //heights of the curve spaced 1 per x position (aka if the cTrace.length === 1000, then the max basePos can be is 1000)
      "basePos": [33, 46, 55,], //x position of the bases (can be unevenly spaced)
      "baseCalls": ["A","T", ...etc],
      "qualNums": [], //or undefined if no qualNums are detected on the file


Flavors of use (aka Embedded in the Editor vs Standalone and UMD vs React):

Can be used on its own (must pass additional props):

//or as a UMD module:

or as part of the Editor/createVectorEditor

    ToolBarProps: { toolList: ["versionHistoryTool", ...otherTools] }
//or as a UMD module:
  ToolBarProps: { toolList: ["versionHistoryTool", ...otherTools] }



(versionId) => teselagenSequenceData


() => [{ versionId: "51241", dateChanged: "12/30/1990", editedBy: "Hector Plahar", revisionType: "Feature Add"}]

onSave [optional] (not necessary unless using the standalone VersionHistoryView)

(event, sequenceDataToSave, editorState, onSuccessCallback) => { same onSave handler as normal }

exitVersionHistoryView [optional] (not necessary unless using the standalone VersionHistoryView)

() => {}

getCurrentSequenceData [optional] (not necessary unless using the standalone VersionHistoryView)

() => teselagenSequenceData //called upon initialization


Auto annotate addon:


Implementing Autosave functionality

pass shouldAutosave=true as a prop and in the onSave() handler, make sure to return a promise so that the UI responds correctly with a spinner indicating saving is in progress



Node.js >= v8 must be installed. download the latest yarn

Outside Developer Set Up Steps

IMPORTANT! First make sure you make an issue for whatever it is you'd like to see changed!
fork your own branch of tg-oss from https://github.com/TeselaGen/tg-oss
cd tg-oss
yarn nx run ove:start #this will start the demo app
navigate to the output url (usually

modify the tg-oss code base to fix/build whatever it is you're trying to do set up a demo for your fix/feature if applicable in demo/src/EditorDemo/index.js set up a cypress test for your fix/feature if applicable you can run the cypress dev tool by running

yarn nx run ove:launch-e2e #this will run the cypress tests

you can view existing cypress tests in the packages/ove/cypress/e2e folder you can either add your test to an existing cypress file or make a new test file

once you're satisfied, make a pull request back to tg-oss and mention @tnrich




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