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Pergola runs seamlessly in an HTML environment (option in configuration file). All the examples are provided both as SVG standalone and embedded in HTML, and are strictly equal.
Besides its universal Node Helper (http://www.svgmagazine.com/jul2011/dom-helper.html) Pergola also provides the equivalent for building HTML nodes and <foreignObject> HTML nodes.
Pro SVG native
The first and most accomplished SVG native library, 100% cross-platform compatible.
Pro Legacy browser support
Pro Convenient API
Clear and concise API with chaining support.
Pro Virtual DOM
Rapid drawing. Only what is necessary is drawn.
Pro Smart layering system
Pro Powerful line drawing
Not only Bezier curves but also any lines, shapes, arcs, etc. out-of-the-box.
Pro Rich text features
Multiline text support, text measurement, wrap, indent, spacing, align, etc.
Pro Full accessibility (Section 508)
Pro Has its own transformation engine
No need to use embarrassing in-browser transformations.
Pro Events support
All browser events are dispatched in the same way in virtual DOM structure also.
Con Commercial license
PERGOLA does not offer a free version. The price for a single developer to use PERGOLA is 400 €.