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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="GoJS changelog." />
<meta http-equiv="cache-control" content="no-cache">
<title>GoJS Change Log</title>
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<h2>GoJS Change Log</h2>
<p id="ver"></p>
<script>
if (go && go.version) {
var p = document.getElementById('ver');
if (p !== null) p.textContent = ("Version: " + go.version);
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<p>
We maintain a <a href="https://github.com/NorthwoodsSoftware/GoJS">GitHub Repository</a>,
which you can star to follow version updates.
We also notify of changes on <a href="https://twitter.com/NorthwoodsGo">Twitter</a>.
</p>
<hr>
<h2 id="2.1">GoJS 2.1</h2>
<h3>New Animation Capabilities</h3>
<p>GoJS 2.1 contains a number of new features to animate different components of your Diagram.</p>
<div style="margin-top: 30px; margin-bottom: 30px;">
<img src="assets/images/changelog/2.1nodeAnimation.gif" style="width: 150px;">
<img src="assets/images/changelog/2.1linkAnimation.gif" style="margin-left: 100px; width: 200px;">
</div>
<p>
See the <a href="intro/animation.html" target="_blank">Intro page on Animation</a>
and the <a href="samples/customAnimations.html" target="_blank">Custom Animation sample</a> for more details and examples.
</p>
<ul>
<li>
New default GoJS animation "fades up", instead of animating Node locations. Added <a>AnimationManager.initialAnimationStyle</a>
to control this behavior.
Here is an example of:
<ul>
<li>
(top) The new initial animation, the Diagram position animating upwards and Diagram opacity animating
from 0 to 1.
<li>
(middle) A custom "zoom in" animation, animating Diagram scale, which is demonstrated in
the new <a href="samples/stateChart.html" target="_blank">State Chart</a> sample,
<li>
(bottom) <a>AnimationManager.initialAnimationStyle</a> set to <a>AnimationManager.AnimateLocations</a> to
perform the GoJS 2.0 and previous style of animation.
The <a href="samples/dataVisualization.html" target="_blank">Data Visualization</a> sample uses this
option.
</ul>
<p>
<img src="assets/images/changelog/2.1initalAnimation.gif" style="margin-left: 10px; width: 250px;">
</p>
</li>
<li>
Added <code>"InitialAnimationStarting"</code> <a>DiagramEvent</a> to more easily customize initial animations.
See <a>AnimationManager.initialAnimationStyle</a> for details.
</li>
<li>
New class: <a>AnimationTrigger</a>. These describe how to automatically animate a property on a GraphObject
when it changes value.
</li>
<li>
New class: <a>Animation</a>. This class lets you declaratively setup custom animations, with options for
indefinite animations.
</li>
<li>
New <a>AnimationManager</a> options, including the ability to define custom animation effects to animate with
<a>AnimationManager,defineAnimationEffect</a>
</li>
<li>
New Animation samples and samples modified to use new Animation features:
<ul>
<li>
<a href="samples/customAnimations.html" target="_blank">Custom Animation</a> - <strong>New Sample:</strong>
Demonstrating a number of Node creation/deletion animations, linking animations, and more.
</li>
<li>
<a href="samples/treeLoadAnimation.html" target="_blank">Tree Load Animation</a> - <strong>New Sample:</strong>
recursive animation upon model load.
</li>
<li>
<a href="samples/flowchart.html" target="_blank">Flowchart</a> - In the Palette only, initial animation
is disabled in favor of a custom fade-in animation.
</li>
<li>
<a href="samples/stateChart.html" target="_blank">State Chart</a> - Initial animation is disabled in
favor of a custom zoom fade-in animation.
</li>
<li>
<a href="samples/dataVisualization.html" target="_blank">Data Visualization</a> - Nodes now move using an
<a>AnimationTrigger</a>.
</li>
<li><a href="samples/kittenMonitor.html" target="_blank">Kitten Monitor</a> - Kittens now move using an <a>AnimationTrigger</a>.</li>
<li>
<a href="samples/processFlow.html" target="_blank">Process Flow</a> - An indefinite Animation of the
Links' strokeDashArray.
</li>
<li>
<a href="samples/shopFloorMonitor.html" target="_blank">Shop Floor Monitor</a> - Link color changes now
use an <a>AnimationTrigger</a>.
</li>
</ul>
</li>
</ul>
<h3>Improved Support For Data Synchronization</h3>
<p>
GoJS 2.1 contains some new methods to ease integration of GoJS diagrams in applications that maintain their own
data, particularly React apps.
</p>
<p>
See the <a href="intro/react.html" target="_blank">Intro page on using GoJS with React</a> and
the <a href="https://github.com/NorthwoodsSoftware/gojs-react-basic" target="_blank">gojs-react example project</a> for details and examples.
Also see <a href="https://github.com/NorthwoodsSoftware/gojs-react" target="_blank">gojs-react</a>, a package
containing React Components for GoJS Diagrams, Palettes, and Overviews.
</p>
<ul>
<li>
New method: <a>Model.toIncrementalData</a>. This method outputs an <a>IncrementalData</a> object containing
changes that occurred within a <a>Transaction</a>,
similar to the existing method, <a>Model.toIncrementalJson</a>. It can be used to keep outside data
synchronized with the GoJS model.
</li>
<li>
New methods: <a>Model.mergeNodeDataArray</a> and <a>GraphLinksModel.mergeLinkDataArray</a>. These methods are
used to merge outside data changes into the GoJS model.
</li>
<li>
New method: <a>Model.cloneDeep</a>. This method can be used to make a deep copy of an object, which may be
useful to ensure GoJS doesn't share references with outside state.
It is also used within <a>Model.toIncrementalData</a> to ensure <a>IncrementalData</a>'s list of modified
objects won't contain references to the model's data objects.
</li>
</ul>
<hr/>
<h4 id="2.1.19">Changes for 2.1.19</h4>
<ul>
<li>
Fixed changing <a>Placeholder.padding</a> to remeasure its <a>Group</a> or <a>Adornment</a>.
</li>
<li>
Fixed <a>Diagram.initialPosition</a> and <a>Diagram.initialScale</a> sometimes not showing scrollbars on initialization.
</li>
<li>
Fixed not recording a transaction that was empty until a "CommittingTransaction" Transaction-type <a>ChangedEvent</a>
caused some <a>ChangedEvent</a>s to made, a regression from 2.1.16.
</li>
</ul>
<h4 id="2.1.18">Changes for 2.1.18</h4>
<ul>
<li>
Added the <a href="samples/belts.html">Belts and Rollers</a> sample,
showing belts or chains wending around rollers or gears.
</li>
<li>
Fixed finding a node by key after undoing a call to <a>Model.setKeyForNodeData</a>.
</li>
<li>
Fixed Diagram initialization without DIVs or with delayed initialization,
where setting some properties like <a>Diagram.scaleComputation</a> would cause measuring errors.
</li>
<li>
Improved handling of numeric large arc flag values when creating SVG arc <a>PathSegment</a>s via <a>PathSegment.constructor</a>.
</li>
<li>
Fixed the TypeScript declaration for <a>GraphObject,make</a> to handle <a>AnimationTrigger</a>s.
</li>
</ul>
<h4 id="2.1.17">Changes for 2.1.17</h4>
<ul>
<li>
Added the <a href="samples/radialAdornment.html">Radial Adornment Buttons</a> sample,
showing a selection <a>Adornment</a>, only on one node, that is like a context menu
with buttons arranged in a circle around the selected node.
</li>
<li>
Added the <a href="samples/donutCharts.html">Donut Charts</a> sample,
showing a simple circular bar chart in each node.
</li>
<li>
Fixed exporting the <a>Picture.reloadSource</a> and <a>Picture.redraw</a> methods.
</li>
<li>
Fixed the <a>LinkingBaseTool.temporaryFromPort</a> and <a>LinkingBaseTool.temporaryToPort</a> property setters
to replace the port of the corresponding temporary node. This allows customization of a <a>LinkingTool</a>
by setting either or both of those two properties.
</li>
<li>
Fixed <a>Diagram.makeImage</a> with a Picture SVG data URI source, in the same manner as in 2.1.16.
</li>
<li>
Fixed undo of a <a>Shape.geometry</a> setting, after its <a>GraphObject.desiredSize</a> had been set.
This particular sequence of events was discovered in the use of the <a>GeometryReshapingTool</a> extension.
</li>
</ul>
<h4 id="2.1.16">Changes for 2.1.16</h4>
<ul>
<li>
Added the <a href="samples/animatedFocus.html">Animated Focus</a> sample,
which demonstrates how to scroll to a node and really make it obvious where the node is
and what it looks like.
</li>
<li>
Added the <a href="samples/addToPalette.html">Add To Palette</a> sample,
which allows the user to add items from the palette by selecting a node,
customizing it, and then executing a command to copy it to the palette's model.
The user can also remove selected items from the palette via a command,
even though <a>Palette.isReadOnly</a> is true.
</li>
<li>
Fixed <a>Diagram.makeImage</a> when a Picture has an SVG source that has a different size than its viewbox.
In some browsers the SVGs had been drawn with the incorrect aspect ratio.
</li>
<li>
Fixed <a>Diagram.delayInitialization</a> incorrectly resetting the <a>Diagram.position</a> when animation is enabled.
</li>
</ul>
<h4 id="2.1.15">Changes for 2.1.15</h4>
<ul>
<li>
Added the <a href="samples/singlePage.html">Single Page Diagram</a> sample,
demonstrating how to show a sheet of paper behind the diagram and how to limit
dragging and resizing to stay within the margins of the page.
</li>
<li>
Fixed label TextBlocks in <a href="intro/graduatedPanels.html">Graduated Panels</a> not respecting their assigned <a>GraphObject.angle</a>.
The angle will now be used when the label's <a>GraphObject.segmentOrientation</a> is <a>Link.None</a>, <a>Link.OrientAlong</a>,
or <a>Link.OrientUpright</a>.
</li>
<li>
Fixed expand and collapse animations, where collapsed objects would temporarily receive NaN locations.
</li>
</ul>
<h4 id="2.1.14">Changes for 2.1.14</h4>
<ul>
<li>
Added the <a href="samples/blockEditor.html">Simple Block Editor</a> sample,
demonstrating how to let users easily build block diagrams.
</li>
<li>
Changing <a>Link.fromShortLength</a> or <a>Link.toShortLength</a> no longer invalidates the link's route.
</li>
<li>
Improved the corner curves of orthogonal links when needing to make consecutive turns within double the corner radius.
</li>
<li>
Fixed an incorrect optimization introduced in 2.1.13 updating initial scrollbars when animating.
</li>
<li>
Fixed undo and redo of <a>ResizingTool</a> operations when the <a>Part.locationSpot</a> is not TopLeft.
</li>
</ul>
<h4 id="2.1.13">Changes for 2.1.13</h4>
<ul>
<li>
Fixed the cursor shown during a drag in an <a>Overview</a> if some external HTML element changed the cursor.
</li>
<li>
Fixed <a>Diagram.makeSvg</a> when rendering a fill or a stroke that is translucent not to make the opacity too small.
</li>
<li>
Added wait spinners to three of the "Virtualized" samples:
<a href="samples/virtualized.html" target="_blank">Virtualized</a>,
<a href="samples/virtualizedForceLayout.html" target="_blank">VirtualizedForceDirectedLayout</a>,
<a href="samples/virtualizedTreeLayout.html" target="_blank">VirtualizedTreeLayout</a>.
These use an image rotated using CSS animation that is positioned in front of the Diagram.
</li>
</ul>
<h4 id="2.1.12">Changes for 2.1.12</h4>
<ul>
<li>
Added the <a href="samples/controlGauges.html">Meter and Gauge Controls</a> sample,
demonstrating several different kinds of meter and gauge instruments whose values
can also be modified by the user by dragging their indicators.
</li>
<li>
Added the <a href="samples/productionEditor.html">Production process editor</a> sample,
which edits diagrams that can be shown by the
<a href="samples/productionProcess.html">Production process</a> sample.
</li>
<li>
Added the <a>SnapLinkReshapingTool.avoidsNodes</a> property in the extensions directories.
</li>
</ul>
<h4 id="2.1.11">Changes for 2.1.11</h4>
<ul>
<li>
Fixed "Grid" Panels to ignore the order of shapes in the panel when considering whether a larger <a>Shape.interval</a>
shape should suppress a smaller interval shape, or should be suppressed by a larger interval shape.
Changed "Grid" Panels to allow multiple shapes with the same <a>Shape.interval</a> to be drawn in the same orientation
(horizontal or vertical).
</li>
<li>
Fixed documentation by undocumenting the useless <a>AnimationManager.animationReasons</a> property that was accidentally documented.
See the updated documentation for <a>AnimationManager.canStart</a>.
</li>
<li>
Fixed <a>Brush.isDark</a> sometimes using an incorrect ordering of <a>Brush.colorStops</a>
when determining darkness near the middle of a Brush.
</li>
</ul>
<h4 id="2.1.10">Changes for 2.1.10</h4>
<ul>
<li>
Added <a>DrawCommandHandler.pullToFront</a> and <a>DrawCommandHandler.pushToBack</a> commands in the extensions directories.
</li>
</ul>
<h4 id="2.1.9">Changes for 2.1.9</h4>
<ul>
<li>
Fixed breadth computations for some cases of <a>TreeLayout.arrangement</a> of separate trees
when <a>TreeLayout.compaction</a> is <code>go.TreeLayout.CompactionNone</code>.
</li>
<li>
Fixed type declarations of <a>Binding.converter</a> and <a>Binding.backConverter</a>
to return <code>any</code> instead of <code>void</code>.
</li>
</ul>
<h4 id="2.1.8">Changes for 2.1.8</h4>
<ul>
<li>
Added the <a href="samples/gameOfLife.html">Game of Life cellular automation</a> sample.
</li>
<li>
You can improve the performance of an <a>Overview</a> that is observing a large diagram with a visible <a>Diagram.grid</a>
by setting <a>Overview.drawsTemporaryLayers</a> to false.
</li>
<li>
Improved the behavior from 2.1.7 when trying to open text editors in multiple diagrams.
A new text editor can be started only if the previous one was able to be accepted.
If <a>TextBlock.textValidation</a> or <a>TextEditingTool.textValidation</a> fails,
focus remains in that older editor and a new one cannot be started.
</li>
<li>
Fixed exception during copy-dragging when some parts are not <a>Part.copyable</a>.
</li>
</ul>
<h4 id="2.1.7">Changes for 2.1.7</h4>
<ul>
<li>
Added the <a href="extensions/PackedHierarchy.html">Packed Hierarchy</a> sample,
which demonstrates a custom <a>PackedLayout</a> for nested circular groups.
</li>
<li>
Added an optional argument to <a>Diagram.clearSelection</a>, and allowed that method to be overridden.
</li>
<li>
The <a>TextEditingTool</a> now only allows one active text editor globally, instead of one per Diagram.
This avoids some focus problems in various browsers.
</li>
</ul>
<h4 id="2.1.6">Changes for 2.1.6</h4>
<ul>
<li>
The <code>release/go-module.js</code> file now exports every class, so that you can import only specific classes, instead of <code>go</code>.
For example: <code>import { Diagram, Node, Link, Point, Shape, TextBlock } from ...</code>.
</li>
<li>
Added a sample demonstrating generating a PDF file for a Diagram, in the <code>projects/pdf</code> subdirectory.
The sample is at <a href="projects/pdf/minimalPDF.html" target="_blank">minimalPDF</a>.
</li>
<li>
Fixed <a>AnimationTrigger</a>s erroneously starting when dragging and dropping Parts from another Diagram or Palette.
</li>
<li>
Fixed <a>LinkingTool</a> not deselecting other parts when a new link is created.
</li>
</ul>
<h4 id="2.1.5">Changes for 2.1.5</h4>
<ul>
<li>
Added <a href="extensionsTS/VirtualizedPacked.html">VirtualizedPacked</a> sample,
which demonstrates a custom layout for large graphs of nested groups,
defined in <a href="extensionsTS/VirtualizedPackedLayout.ts">VirtualizedPackedLayout.ts</a>.
(Source is TS only)
</li>
<li>
Fixed setting a node key reference in either a node or link via <a>GraphLinksModel.setGroupKeyForNodeData</a>,
<a>GraphLinksModel.setFromKeyForLinkData</a>, or <a>GraphLinksModel.setToKeyForLinkData</a> where it could fail to resolve
if the node did not yet exist. This issue did not exist during typical model loading.
</li>
<li>
Fixed a regression since 2.1.1 with <a>Diagram.clear</a> failing to clear internal Parts lists (like <a>Diagram.nodes</a>).
</li>
</ul>
<h4 id="2.1.4">Changes for 2.1.4</h4>
<ul>
<li>
Added <a>Link.computeAdjusting</a> to conditionally change the value of <a>Link.adjusting</a> used. As a new default,
links will use the adjusting value <a>Link,End</a> during animation. <a>Link.computeAdjusting</a> can be overriden to change this behavior.
</li>
<li>
Added <a>Geometry.getPointAlongPath</a>, <a>Geometry.getAngleAlongPath</a>, and <a>Geometry.getFractionForPoint</a>.
These methods can be used to find a point or angle for a given fractional distance along a Geometry's path,
or to find the fractional distance along the Geometry's path given a nearby point.
</li>
<li>
Setting <a>GraphObject.segmentIndex</a> to NaN, which was previously an error,
will now treat the entire link path as the segment for the purpose of <a>GraphObject.segmentFraction</a>.
This allows for using fractional distances along the entire link rather than just one segment.
</li>
<li>
Fixed object picking during Diagram's InitialLayoutCompleted DiagramEvent.
</li>
<li>
Fixed GoCloudStorage where a null defaultModel would fail.
</li>
<li>
Fixed <a>Panel.graduatedValueForPoint</a> in cases where the main shape was a diagonal line
and the provided point didn't fall on the line.
</li>
</ul>
<h4 id="2.1.3">Changes for 2.1.3</h4>
<ul>
<li>
Fixed a regression from 2.0.0 with AvoidsNodes links improperly re-routing when using the DraggingTool.
</li>
<li>
Fixed a undo (redo) bug with <a>AnimationTrigger</a>s that used location or position on Parts.
</li>
<li>
Improved routing of duplicate links that have <a>Link.adjusting</a> set to a value other than None and have
more than the standard number of points in their route.
</li>
</ul>
<h4 id="2.1.2">Changes for 2.1.2</h4>
<ul>
<li>
Fixed a regression in 2.1.1 with the timing of <code>InitialAnimationStarting</code> that would prevent custom
initial animations.
</li>
<li>
CTRL + Mouse-wheel will still stop the event from bubbling,
even if <a>CommandHandler.canIncreaseZoom</a> or <a>CommandHandler.canDecreaseZoom</a> return false.
These are potentially false if a <a>Diagram.minScale</a> or <a>Diagram.maxScale</a> are set.
This change stops the entire page from accidentally zooming during a zoom-wheel operation.
</li>
<li>
Fixed a measuring bug with Link Geometry when the Link is smaller than the <a>Link.toShortLength</a> or <a>Link.fromShortLength</a>.
</li>
</ul>
<h4 id="2.1.1">Changes for 2.1.1</h4>
<ul>
<li>
Fixed updating of <a>Adornment</a>s when there are <a>Binding</a>s from <a>Model.modelData</a>
and that shared object has been modified by calling <a>Model.set</a>.
</li>
<li>
Improved performance when replacing <a>Diagram.model</a> when cleaning up the old model,
which had infrequently resulted in obscure warnings in debug mode about <a>Node.isTreeLeaf</a>.
</li>
<li>
Fixes for loading Models with serialized EnumValues.
</li>
<li>
Performance improvements for concurrent animations.
</li>
<li>
Fixes for consistency of animation state.
This includes modifying when <code>AnimationStarting</code> and <code>InitialAnimationStarting</code> are
called,
and fixes when default animations are stopped and another is immediately started, such as when loading a new
model in the middle of animation.
</li>
<li>
Fixed <a>Model.fromJson</a> loading models with serialized EnumValues.
</li>
<li>
Improved showing non-default cursors when dragging between diagrams.
</li>
<li>
Fixed the operation of <a>Diagram.handlesDragDropForTopLevelParts</a> when dragging on the elements of a <a>Group</a>.
</li>
<li>
Fixed <a>Diagram.scrollHorizontalLineChange</a> and <a>Diagram.scrollVerticalLineChange</a> would
not affect scrolling size in some browsers.
</li>
<li>
Fixed AvoidsNodes Links routing in nested groups.
</li>
</ul>
<h4 id="2.1.0">Other Changes for 2.1.0:</h4>
<p>
See the major changes <a href="#2.1">above</a>.
</p>
<ul>
<li>
Added <a>DoubleTreeLayout</a> to the extensions and extensionsTS directories. This is now used by both the
<a href="samples/doubleTree.html">Double Tree</a> and <a href="samples/doubleTreeJSON.html">
Double Tree
JSON
</a> samples.
</li>
<li>
Updated the sequencing of "ChangingSelection" and "ChangedSelection" <a>DiagramEvent</a>s to be outside of
transactions for commands and tools.
Exceptions include "ChangingSelection" being called during "Drag" and "Linking" operations when drag-copying or
inserting a link.
With "ChangedSelection" occuring after a transaction completes, any changes will be complete and can be used in
the listener.
</li>
<li>
<a>CommandHandler.zoomToFit</a> now animates by default.
</li>
<li>
Improved the <a>ContextMenuTool.defaultTouchContextMenu</a>'s "Paste" command to use the <a>ContextMenuTool.mouseDownPoint</a>
rather than the <a>Diagram.lastInput</a>'s <a>InputEvent.documentPoint</a>.
</li>
<li>
Added new property, <a>Diagram.opacity</a>. This may be useful for fade-in/out animations, or visual indication
of a disabled Diagram.
</li>
<li>
Added new method, <a>Diagram.findLinkForKey</a>, which will look for a link corresponding to a model's link
data object's unique key.
This will only return a link when using a <a>GraphLinksModel</a> with <a>GraphLinksModel.linkKeyProperty</a>
set to a non-empty string.
</li>
<li>
<a>Model.applyIncrementalJson</a> now throws an error if model properties (eg. nodeKeyProperty) included in the
JSON don't match the existing model.
This check only includes properties included in the output from <a>Model.toIncrementalJson</a>.
</li>
<li>
Added new methods, <a>Picture.reloadSource</a>, which reloads a Picture source in case the file on the server has
changed,
and <a>Picture.redraw</a> which redraws the picture, and can be useful to update the Picture if the source is
backed by an HTML Canvas or HTML Video Element.
</li>
<li>
Added new sample: <a href="samples/svgDataUrl.html" target="_blank">SVG Data URL</a> - Export SVG with Base64 hrefs instead
of the <a>Picture.source</a> URL.
</li>
</ul>
<hr/>
<h2 id="2.0">GoJS 2.0</h2>
<p>
For 2.0, GoJS has been rewritten in TypeScript, with improvements to stability and documentation.
All customers (with or without source code license) can take advantage of the TypeScript definitions <code>.d.ts</code>
file, which is much more comprehensive in 2.0.
</p>
<p>
A source license will now include TypeScript source files as well as JavaScript sources,
and examples of how to build the library into your project with Webpack or Browserify,
should you wish to. This will allow you to remove unused modules from the source code,
such as Layouts, Models, and Tools that you are not using. Note that unless you have strong minification,
you may not see size improvements over the pre-built <code>go.js</code> library, which is highly optimized.
</p>
<p>
The size of the <code>go.js</code> library has been slightly reduced (both uncompressed and gzipped), from the 1.8 versions.
</p>
<p>
The main library has been reduced by removing many of the uncommon figures.
These are now an extension. (<a href="extensions/Figures.js" target="_blank">Figures.js</a>)
</p>
<p>
GoJS can now be run DOM-less, in Node.
</p>
<p>
We have added the ability to create your own Panels, with the new PanelLayout class.
See an example <a href="samples/panelLayout.html" target="_blank">here</a>.
</p>
<hr/>
<h4 id="2.0.18">Changes for 2.0.18</h4>
<ul>
<li>
Shapes with a shadow and a <a>Shape.fill</a> value of <code>"transparent"</code> now apply the shadow to the <a>Shape.stroke</a>,
instead of the invisible <a>Shape.fill</a>.
</li>
<li>
Minor scrollbar fixes.
</li>
<li>
Fixed "PanelExpanderButton" click event handler to set <a>InputEvent.handled</a> to true, so that other click
event handlers in containing panels will not run.
</li>
<li>
Improved the <a>Map</a> constructor and <a>Map.addAll</a> method to accept an instance of <a>Map</a>.
</li>
</ul>
<h4 id="2.0.17">Changes for 2.0.17</h4>
<ul>
<li>
Fixed scrollbars when setting invisible/hidden Diagram DIVs to visible/unhidden while modifying
their size.
</li>
<li>
Improved orthogonal link segment overlap avoidance in <a>LayeredDigraphLayout</a>.
</li>
<li>
Optimizations for Puppeteer.
</li>
</ul>
<h4 id="2.0.16">Changes for 2.0.16</h4>
<ul>
<li>
IE bugfix when dragging from a Diagram or Palette and dropping on a non-Diagram page element.
</li>
<li>
Fixed the <a>DraggingTool</a>, when moving or copying between diagrams, to update the <a>Diagram.currentCursor</a>
to be the <a>Diagram.defaultCursor</a>, not to "default".
</li>
<li>
Fixed a bug when setting <a>AnimationManager.isInitial</a> to <code>false</code> when there are no Parts in the
initial model.
</li>
</ul>
<h4 id="2.0.15">Changes for 2.0.15</h4>
<ul>
<li>
Link JumpOver fixes.
</li>
<li>
Fixed an animation bug where some Model loading events might not respect the value of <a>AnimationManager.isInitial</a>.
</li>
<li>
Fixed <a>AnimationManager.isInitial</a>, where subsequent animations may not occur when it is false.
</li>
<li>
Fixed Picture drawing when the Picture is scaled to be drawn smaller than a pixel.
During expanding animations, it is possible that such a small scale is applied to a Picture.
</li>
</ul>
<h4 id="2.0.14">Changes for 2.0.14</h4>
<ul>
<li>
Added <a>DraggingOptions.groupsAlwaysMove</a>,
which determines whether Groups move their member parts even if those members have.
<a>Part.movable</a> and <a>Part.copyable</a> set to false.
</li>
<li>
Improved the way Graduated panels decide whether or not to draw ticks based on <a>Diagram.scale</a>.
It is now based on the approximate pixel distance between ticks.
If they would be rendered too close together, they will be skipped.
</li>
<li>
Fixed an infinite loop bug with <a>ContextMenuTool</a> when invoked by <a>CommandHandler.showContextMenu</a> on
a <a>GraphObject.click</a> event.
</li>
<li>
Minor fixes for using GoJS within Puppeteer, for making SVG.
</li>
</ul>
<h4 id="2.0.13">Changes for 2.0.13</h4>
<ul>
<li>
When dragging over a different Diagram than the source, such as in a drag from a Palette,
the DraggingTool now checks the Diagram's cursor and only changes it to <code>"copy"</code>
if the <a>Diagram.currentCursor</a> value is <code>""</code> or <code>"auto"</code>.
</li>
<li>
Drawing fix for some objects disappearing when rotated, and the Diagram is scaled.
</li>
<li>
Optimized <a>Group.move</a> not to try moving member parts when the offset is zero.
This improves the stability of layouts that move groups, such as PoolLayout in some samples.
</li>
<li>
<strong style="color:red;">
This bugfix potentially breaks old <code>elementFinished</code> code in Shape
geometries with multiple figures.
</strong>
Fix for <a>Diagram.makeSVG</a> <code>elementFinished</code> optional argument:
Shapes with multiple geometry figures would pass the final SVG <code><path></code> generated as the SVG
element,
when they should be grouped together and pass an SVG <code><g></code> instead.
This is what TextBlock already does when there is more than one line of text.
</li>
</ul>
<h4 id="2.0.12">Changes for 2.0.12</h4>
<ul>
<li>
Fixed a memory leak with internal <a>Picture</a> caching when modifying Panel item arrays.
</li>
<li>
Fixed animation when expanding and collapsing during Diagram load.
</li>
<li>
Fixed drawing in IE when drawing shapes with zero width or height geometries that have a stroke.
</li>
<li>
The <a>DraggingTool</a> will no longer auto scroll the diagram if <a>Diagram.isReadOnly</a> is true or both <a>Diagram.allowMove</a>
and <a>Diagram.allowCopy</a> are false.
This means that, by default, a <a>Palette</a> will no longer auto scroll while the DraggingTool is active.
</li>
<li>
Improved positioning of unrotated link labels when <a>GraphObject.segmentOffset</a> is <code>go.Point(NaN, NaN)</code>
and the link segment is more vertical than horizontal.
</li>
</ul>
<h4 id="2.0.11">Changes for 2.0.11</h4>
<ul>
<li>
Fixed <a>CommandHandler.standardMouseOver</a> mis-reporting the current object, a regression from 2.0.10.
</li>
</ul>
<h4 id="2.0.10">Changes for 2.0.10</h4>
<ul>
<li>
Fixed simulated <a>InputEvent</a>s, such as used by <a>Robot</a>, that caused <a>GraphObject.mouseEnter</a>
and <a>GraphObject.mouseLeave</a> event handlers not to be called.
</li>
<li>
The <a>Diagram.model</a> setter and <a>Diagram.clear</a> now call <a>Diagram.clearSelection</a> and <a>Diagram.clearHighlighteds</a>.
This provides a more uniform protocol of selection events.
</li>
<li>
Fixed some cases of preventing some <a>Picture.successFunction</a>s from ever firing.
</li>
<li>
Fixed Bezier link routing in <a>LayeredDigraphLayout</a> when <a>LayeredDigraphLayout.setsPortSpots</a>
was false
and an end of the link was undirected.
</li>
<li>
Fixed a performance bug with Picture caching, introduced in 2.0.5.
</li>
</ul>
<h4 id="2.0.9">Changes for 2.0.9</h4>
<ul>
<li>
<a>Diagram.makeSvg</a> now accepts <code>callback</code> and <code>callbackTimeout</code> options. This makes
it more like
<a>Diagram.makeImage</a> and <a>Diagram.makeImageData</a> (which have had these options since 2.0.0).
If a callback function is provided, the methods will instead return null
and SVG creation will wait until all Diagram Picture sources are loaded
before creating the SVG and invoking the callback.
</li>
<li>
Fixed a regression with <a>Diagram.makeSvg</a> where it would not draw Pictures that were not yet loaded, even
if they had a valid size.
</li>
<li>
Fixed <a>GridLayout</a>s when used as a <a>Group.layout</a> and when <a>GridLayout.alignment</a> is <code>go.GridLayout.Position</code>,
to treat <a>GridLayout.wrappingWidth</a> as a width limit, regardless of the <a>Layout.arrangementOrigin</a>.
If you were forced to set <a>GridLayout.wrappingColumn</a> to a value just to be free of the treatment of the
default value for <a>GridLayout.wrappingColumn</a>
(<code>NaN</code>) to indicate the width of the viewport, it is now possible to set <a>GridLayout.wrappingWidth</a>
to respect a smaller value.
</li>
<li>
Fixed maintaining the selection state of selected Parts that change their category.
</li>
<li>
GoJS will step down the Canvas resolution during drawing operations like dragging and panning, which can lead
to "fuzzy" shapes and text during these operations.
This is now only done when a slower frame rate is detected.
</li>
<li>
Drawing performance improvements, especially in well-connected graphs.
</li>
<li>
Fixed trackpad scrolling reversing at the end of scroll events.
</li>
<li>
Fixed drawing grids on some <a>Overview</a>s.
</li>
</ul>
<h4 id="2.0.8">Changes for 2.0.8</h4>
<ul>
<li>
Fixed a regression with Pictures from 2.0.4 that would throw an error when setting <a>Picture.source</a>.
</li>
<li>
Fixed potential errors in <a>Binding.ofObject</a> bindings when changing category/template because the bindings
were being evaluated on the copied new template rather than on the original Part.
</li>
</ul>
<h4 id="2.0.7">Changes for 2.0.7</h4>
<ul>
<li>
Floorplanner 2.0 - New Floorplanner project (<a href="projects/floorplannerTS/floorplannerTSSample.html">
see it
here
</a>), written in TypeScript, at <code>projects/floorplannerTS</code>. New features include:
<ul>
<li>
Wall mitering, with updated dimension links and angle nodes to account for this
</li>
<li>
The ability to define rooms, complete with name, floor type, area, and draggable labels
</li>
<li>
Textures - apply seamless textures to furniture or floors, by use of GoJS Pattern Brushes
</li>
<li>
Full integration with the GoCloudStorage library (save to Local Storage / Google Drive / Dropbox /
OneDrive)
</li>
<li>
Export to PNG
</li>
<li>
Export to SVG
</li>
<li>
Ability to define unit scale in Options menu
</li>
</ul>
</li>
<li>
New intro page on <a href="intro/replacingDeleting.html">Replacing Diagrams and Models</a>
</li>
<li>
Fixed Link Shape Geometries not rendering when updated partially off-screen.
</li>
<li>
Fixed <a>InputEvent.clickCount</a>: Before, on touch devices, this count was incremented only on the
end of the touch, and not the start.
This was discrepant from mouse click behavior, and would lead to problems when Tools queried the clickCount on
touch/mouseDown,
when determining for instance if a particular InputEvent was a double-click. Now, the <a>InputEvent.clickCount</a>
is reported consistently
on mouseDown/touchStart/pointerDown and the corresponding "up" events.
</li>
<li>
GoJS previously would set the Canvas Context's imageSmoothingEnabled property to false.
It no longer does this. If this change causes visual errors, please contact us.
</li>
</ul>
<h4 id="2.0.6">Changes for 2.0.6</h4>
<ul>
<li>Fixed the <code>go.d.ts</code> file where <a>GraphObject.alignment</a> was missing.</li>
<li>
Added missing cloneProtected overrides for <a>BalloonLink</a> and <a>DimensioningLink</a> so data is properly
copied.
</li>
</ul>
<h4 id="2.0.5">Changes for 2.0.5</h4>
<ul>
<li>
Fix for <a>Shape,defineFigureGenerator</a> where it would incorrectly throw an error on Geometry bounds being
too large, when they were not.
</li>
<li>
Some touch events would cause [intervention] warnings in some browsers when canceled because GoJS would call
<code>preventDefault</code> on non-cancelable events.
This has been fixed.
</li>
<li>Fixed <a>Diagram.zoomToFit</a> when <a>Diagram.scrollMode</a> was set to <a>Diagram,InfiniteScroll</a>.</li>
<li>
Fixed <a>GuidedDraggingTool</a> snapping the whole part to a guideline instead of the location object.
</li>
</ul>
<h4 id="2.0.4">Changes for 2.0.4</h4>
<ul>
<li>
Fixed the TypeScript declaration of <a>GraphObject,make</a> to allow an <code>HTMLDivElement</code> as an
argument when building a <a>Diagram</a>.
Also added some type overloads of that function to reduce apparent type errors with correct code.
</li>
<li>
Fixed some apparent non-determinism in the results of <a>LayeredDigraphLayout</a> upon an initial layout.
</li>
<li>
Animation upgrades, notably when you move a port during an animation, connected Links will properly re-route.
</li>
</ul>
<h4 id="2.0.3">Changes for 2.0.3</h4>
<ul>
<li>
Improved data binding of tooltips and context menus for item panels to avoid temporarily setting <a>Panel.data</a>
incorrectly.
</li>
<li>
Enhanced the meaning of <a>UndoManager.maxHistoryLength</a> so that a value of zero causes no <a>Transaction</a>s
to be
remembered in the <a>UndoManager.history</a> but allows commits and rollbacks to occur normally.
</li>
<li>
Fixed a bug introduced in 2.0.1 with <a>Diagram.makeSvg</a> incorrectly re-using SVG elements.
</li>
<li>
Fixed a bug introduced in 2.0.0 with <a>Diagram.makeSvg</a> when drawing dashed paths.
</li>
<li>
Deployment fixes for electron apps.
</li>
</ul>
<h4 id="2.0.2">Changes for 2.0.2</h4>
<ul>
<li>
Updated the <a href="samples/canvases.html">Charts in Nodes sample</a> to use <a href="https://chartjs.org">Chart.js</a>.
</li>
<li>
Deployment fixes. This release should resolve <em>"Cannot use 'in' operator to search for 'go' in undefined"</em>
errors in some browser contexts.