The ‘overflow’ property has the value hidden or scroll, For those elements to which the ‘overflow’ property can apply, if.For all other elements, the property has no effect (i.e., a clipping (e.g., ‘svg’ elements), ‘pattern’ elements and ‘marker’Įlements. However, the following additional points apply: The ‘overflow’ property has the same parameter values and has the Which establish a new viewport, ‘pattern’ elements Visible | hidden | scroll | auto | inherit The user agent establishes for the SVG document fragment: 14.3.3 The ‘overflow’ User agent processing rules determine the initial clipping path which ‘overflow’ and ‘clip’ properties along with additional SVG When an ‘svg’ element is either the root element in theĭocument or is embedded within a document whose layout is determinedĪccording to the layout rules of CSS or XSL, then the user agent mustĮstablish an initial clipping path for the SVG document fragment. Path are white with an alpha value of one (with the possibleĮxception of anti-aliasing along the edge of the Wherein those pixels outside the clipping path are black withĪn alpha value of zero and those pixels inside the clipping A clipping path can be thought of as a mask Outside of the region bounded by the currently active clipping Conceptually, any parts of the drawing that lie The clipping path restricts the region to which paint can beĪpplied. Information about the color space in which to perform theĬompositing operations, apply to compositing operations: The following rendering properties, which provide The resulting color and opacity at any given pixel on theĬanvas is the result of the following formulas (all colorĬr, Cg, Cb - Canvas color value (before blending)Ĭa - Canvas alpha value (before blending)Ĭr', Cg', Cb' - Canvas color value (after blending)Ĭa' - Canvas alpha value (after blending) Rendered on the canvas using simple alpha compositing, in which Graphics elements are blended into the elements already SVG supports only simple alpha blending compositing (see Range from fully transparent to fully opaque. (i.e., the silhouette consists of either fully opaque pixels orįully transparent pixels, with the possible exception ofĪnti-aliasing along the edge of the silhouette) whereas masksĬonsist of an image where each pixel value indicates the degree One key distinction between a clipping pathĪnd a mask is that clipping paths are hard masks That is to be used as a semi-transparent mask for compositingįoreground objects into the current background. Or other container elements which define a set of graphics Mask, where everything on the 'inside' of the outline isĪllowed to show through but everything on the outside is The outline of a (in the absence of anti-aliasing) 1-bit

SVG supports the following clipping/masking features: 14.3.6 Clipping paths, geometry, and pointer events.14.3.5 Establishing a new clipping path: the ‘clipPath’ element.SVG 1.1 (Second Edition) – 16 August 2011 Top ⋅ Contents ⋅ Previous ⋅ Next ⋅ Elements ⋅ Attributes ⋅ Properties 14 Clipping, Masking and Compositing Contents

Clipy path