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# 13 Gradients and Patterns

### Contents

## 13.1 Introduction

With SVG, you can fill (i.e., paint the interior) or stroke (i.e., paint the outline) of shapes and text using one of the following:

- color
- gradients (linear or radial)
- patterns (vector or image, possibly tiled)

SVG uses the general notion of a paint server. Gradients and patterns are just specific types of built-in paint servers.

Paint servers are referenced using a URI reference on a 'fill' or 'stroke' property.

## 13.2 Gradients

### 13.2.1 Introduction

Gradients consist of continuously smooth color transitions along a vector from one color to another, possibly followed by additional transitions along the same vector to other colors. SVG provides for two types of gradients, linear gradients and radial gradients.

Once defined, gradients are then referenced using 'fill' or 'stroke' or properties on a given graphics element to indicate that the given element shall be filled or stroked with the referenced gradient.

### 13.2.2 Linear gradients

Linear gradients are defined by a 'linearGradient' element.

    <!ENTITY % linearGradientExt "" >
    <!ELEMENT linearGradient (%descTitleMetadata;,(stop|animate|set|animateTransform
                       %linearGradientExt;)*) >
    <!ATTLIST linearGradient
      %stdAttrs;
      %xlinkRefAttrs;
      xlink:href %URI; #IMPLIED
      externalResourcesRequired %Boolean; #IMPLIED
      gradientUnits (userSpaceOnUse | userSpace | objectBoundingBox) #IMPLIED
      gradientTransform %TransformList; #IMPLIED
      x1 %Coordinate; #IMPLIED
      y1 %Coordinate; #IMPLIED
      x2 %Coordinate; #IMPLIED
      y2 %Coordinate; #IMPLIED
      spreadMethod (pad | reflect | repeat) "pad" >

Attribute definitions:

gradientUnits = "userSpaceOnUse | userSpace | objectBoundingBox"
  Defines the coordinate system for attributes x1, y1, x2, y2.
  If gradientUnits="userSpaceOnUse", x1, y1, x2, y2 represent values in the current user coordinate system in place at the time when the 'linearGradient' element is referenced (i.e., the user coordinate system for the element referencing the 'linearGradient' element via a 'fill' or 'stroke' property).
  If gradientUnits="userSpace", x1, y1, x2, y2 represent values in the current user coordinate system in place at the time when the 'linearGradient' element is defined.
  If gradientUnits="objectBoundingBox", then x1, y1, x2, y2 represent fractions or percentages of the bounding box of the element to which the gradient is applied (see Object bounding box units). In this case, the stripes of the linear gradient are perpendicular to the gradient vector in object bounding box space (i.e., the abstract coordinate system where (0,0) is at the top/left of the object bounding box and (1,1) is at the bottom/right of the object bounding box). When the object's bounding box is not square, the stripes that are conceptually perpendicular to the gradient vector within object bounding box space will render non-perpendicular relative to the gradient vector in user space due to application of the non-uniform scaling transformation from bounding box space to user space.
  If attribute gradientUnits is not specified, then the effect is as if a value of userSpaceOnUse were specified.
  Animatable: yes.
gradientTransform = "<transform-list>"
  Contains the definitions of an optional additional transformation from the gradient coordinate system onto the target coordinate system (i.e., userSpaceOnUse, userSpace or objectBoundingBox). This allows for things such as skewing the gradient. This additional transformation matrix is post-multiplied to (i.e., inserted to the right of) any previously defined transformations, including the implicit transformation necessary to convert from object bounding box units to user space.
  Animatable: yes.
x1 = "<coordinate>"
  x1, y1, x2, y2 define a gradient vector for the linear gradient. This gradient vector provides starting and ending points onto which the gradient stops are mapped. The values of x1, y1, x2, y2 can be either numbers or percentages.
  If the attribute is not specified, the effect is as if a value of "0%" were specified.
  Animatable: yes.
y1 = "<coordinate>"
  See x1.
  If the attribute is not specified, the effect is as if a value of "0%" were specified.
  Animatable: yes.
x2 = "<coordinate>"
  See x1.
  If the attribute is not specified, the effect is as if a value of "100%" were specified.
  Animatable: yes.
y2 = "<coordinate>"
  See x1.
  If the attribute is not specified, the effect is as if a value of "0%" were specified.
  Animatable: yes.
spreadMethod = "pad | reflect | repeat"
  Indicates what happens if the gradient starts or ends inside the bounds of the target rectangle. Possible values are: pad, which says to use the terminal colors of the gradient to fill the remainder of the target region, reflect, which says to reflect the gradient pattern start-to-end, end-to-start, start-to-end, etc. continuously until the target rectangle is filled, and repeat, which says to repeat the gradient pattern start-to-end, start-to-end, start-to-end, etc. continuously until the target region is filled.
  Animatable: yes.
xlink:href = "<uri>"
  A URI reference to a different 'linearGradient' or 'radialGradient' element within the current SVG document fragment. Any 'linearGradient' attributes which are defined on the referenced element which are not defined on this element are inherited by this element. If this element has no defined gradient stops, and the referenced element does (possibly due to its own href attribute), then this element inherits the gradient stop from the referenced element. Inheritance can be indirect to an arbitrary level; thus, if the referenced element inherits attribute or gradient stops due to its own href attribute, then the current element can inherit those attributes or gradient stops.
  Animatable: yes.

Attributes defined elsewhere:
  %stdAttrs;, %xlinkRefAttrs;, externalResourcesRequired.

Percentages are allowed for x1, y1, x2, y2. For gradientUnits="userSpaceOnUse" or gradientUnits="userSpace", percentages represent values relative to the current viewport. For gradientUnits="objectBoundingBox", percentages represent values relative to the bounding box for the object.

If x1 = x2 and y1 = y2, then the area to be painted will be painted as a single color using the color and opacity of the last gradient stop.

Example lingrad01 shows how to fill a rectangle by referencing a linear gradient paint server.

    <?xml version="1.0" standalone="no"?>
    <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20000802//EN"
      "http://www.w3.org/TR/2000/CR-SVG-20000802/DTD/svg-20000802.dtd">
    <svg width="8cm" height="4cm">
      <desc>Example lingrad01 - fill a rectangle by referencing a
               linear gradient paint server</desc>
      <g>
        <defs>
          <linearGradient id="MyGradient">
            <stop offset="5%" style="stop-color:#F60"/>
            <stop offset="95%" style="stop-color:#FF6"/>
          </linearGradient>
        </defs>

        <!-- Outline the drawing area in blue -->
        <rect style="fill:none; stroke:blue"
              x=".01cm" y=".01cm" width="7.98cm" height="3.98cm"/>

        <!-- The rectangle is filled using a linear gradient paint server -->
        <rect style="fill:url(#MyGradient); stroke:black"
              x="1cm" y="1cm" width="6cm" height="2cm"/>
      </g>
    </svg>

Example lingrad01

View this example as SVG (SVG-enabled browsers only)

### 13.2.3 Radial gradients

Radial gradients are defined by a 'radialGradient' element.

    <!ENTITY % radialGradientExt "" >
    <!ELEMENT radialGradient (%descTitleMetadata;,(stop|animate|set|animateTransform
                       %radialGradientExt;)*) >
    <!ATTLIST radialGradient
      %stdAttrs;
      %xlinkRefAttrs;
      xlink:href %URI; #IMPLIED
      externalResourcesRequired %Boolean; #IMPLIED
      gradientUnits (userSpaceOnUse | userSpace | objectBoundingBox) #IMPLIED
      gradientTransform %TransformList; #IMPLIED
      cx %Coordinate; #IMPLIED
      cy %Coordinate; #IMPLIED
      r %Length; #IMPLIED
      fx %Coordinate; #IMPLIED
      fy %Coordinate; #IMPLIED
      spreadMethod (pad | reflect | repeat) "pad" >

Attribute definitions:

gradientUnits = "userSpaceOnUse | userSpace | objectBoundingBox"
  Defines the coordinate system for attributes cx, cy, r, fx, fy.
  If gradientUnits="userSpaceOnUse", cx, cy, r, fx, fy represent values in the current user coordinate system in place at the time when the 'radialGradient' element is referenced (i.e., the user coordinate system for the element referencing the 'radialGradient' element via a 'fill' or 'stroke' property).
  If gradientUnits="userSpace", cx, cy, r, fx, fy represent values in the current user coordinate system in place at the time when the 'linearGradient' element is defined.
  If gradientUnits="objectBoundingBox", then cx, cy, r, fx, fy represent fractions or percentages of the bounding box of the element to which the gradient is applied (see Object bounding box units). In this case, the rings of the radial gradient are circular with respect to the object bounding box space (i.e., the abstract coordinate system where (0,0) is at the top/left of the object bounding box and (1,1) is at the bottom/right of the object bounding box). When the object's bounding box is not square, the rings that are conceptually circular within object bounding box space will render as elliptical due to application of the non-uniform scaling transformation from bounding box space to user space.
  If attribute gradientUnits is not specified, then the effect is as if a value of userSpaceOnUse were specified.
  Animatable: yes.
gradientTransform = "<transform-list>"
  Contains the definitions of an optional additional transformation from the gradient coordinate system onto the target coordinate system (i.e., userSpaceOnUse, userSpace or objectBoundingBox). This allows for things such as skewing the gradient. This additional transformation matrix is post-multiplied to (i.e., inserted to the right of) any previously defined transformations, including the implicit transformation necessary to convert from object bounding box units to user space.
  Animatable: yes.
cx = "<coordinate>"
  cx, cy, r define the largest (i.e., outermost) circle for the radial gradient. The gradient will be drawn such that the 100% gradient stop is mapped to the perimeter of this largest (i.e., outermost) circle.
  If the attribute is not specified, the effect is as if a value of "50%" were specified.
  Animatable: yes.
cy = "<coordinate>"
  See cx.
  If the attribute is not specified, the effect is as if a value of "50%" were specified.
  Animatable: yes.
r = "<length>"
  See cx.
  A negative value is an error (see Error processing). A value of zero will cause the area to be painted as a single color using the color and opacity of the last gradient stop.
  If the attribute is not specified, the effect is as if a value of "50%" were specified.
  Animatable: yes.
fx = "<coordinate>"
  fx, fy define the focal point for the radial gradient. The gradient will be drawn such that the 0% gradient stop is mapped to (fx, fy).
  If attribute fx is not specified, fx will coincide with cx.
  Animatable: yes.
fy = "<coordinate>"
  See fx.
  If attribute fy is not specified, fy will coincide with cy.
  Animatable: yes.
spreadMethod = "pad | reflect | repeat"
  Indicates what happens if the gradient starts or ends inside the bounds of the object(s) being painted by the gradient. Has the same values and meanings as the spreadMethod attribute on 'linearGradient' element.
  Animatable: yes.
xlink:href = "<uri>"
  A URI reference to a different 'linearGradient' or 'radialGradient' element within the current SVG document fragment. Any 'radialGradient' attributes which are defined on the referenced element which are not defined on this element are inherited by this element. If this element has no defined gradient stops, and the referenced element does (possibly due to its own href attribute), then this element inherits the gradient stop from the referenced element. Inheritance can be indirect to an arbitrary level; thus, if the referenced element inherits attribute or gradient stops due to its own href attribute, then the current element can inherit those attributes or gradient stops.
  Animatable: yes.

Attributes defined elsewhere:
  %stdAttrs;, %xlinkRefAttrs;, externalResourcesRequired.

Percentages are allowed for attributes cx, cy, r, fx and fy. For gradientUnits="userSpaceOnUse" or gradientUnits="userSpace", percentages represent values relative to the current viewport. For gradientUnits="objectBoundingBox", percentages represent values relative to the bounding box for the object.

If the point defined by fx and fy lies outside the circle defined by cx, cy and r, then the user agent shall set the focal point to the intersection of the line from (cx, cy) to (fx, fy) with the circle defined by cx, cy and r.

Example radgrad01 shows how to fill a rectangle by referencing a linear gradient paint server.

    <?xml version="1.0" standalone="no"?>
    <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20000802//EN"
      "http://www.w3.org/TR/2000/CR-SVG-20000802/DTD/svg-20000802.dtd">
    <svg width="8cm" height="4cm">
      <desc>Example radgrad01 - fill a rectangle by referencing a
               radial gradient paint server</desc>
      <g>
        <defs>
          <radialGradient id="MyGradient"
                          cx="4cm" cy="2cm" r="3cm" fx="4cm" fy="2cm">
            <stop offset="0%" style="stop-color:red"/>
            <stop offset="50%" style="stop-color:blue"/>
            <stop offset="100%" style="stop-color:red"/>
          </radialGradient>
        </defs>

        <!-- Outline the drawing area in blue -->
        <rect style="fill:none; stroke:blue"
              x=".01cm" y=".01cm" width="7.98cm" height="3.98cm"/>

        <!-- The rectangle is filled using a radial gradient paint server -->
        <rect style="fill:url(#MyGradient); stroke:black"
              x="1cm" y="1cm" width="6cm" height="2cm"/>
      </g>
    </svg>

Example radgrad01

View this example as SVG (SVG-enabled browsers only)

### 13.2.4 Gradient stops

The ramp of colors to use on a gradient is defined by the 'stop' elements that are child elements to either the 'linearGradient' element or the 'radialGradient' element.

    <!ENTITY % stopExt "" >
    <!ELEMENT stop (animate|set|animateColor
                       %stopExt;)* >
    <!ATTLIST stop
      %stdAttrs;
      class %ClassList; #IMPLIED
      style %StyleSheet; #IMPLIED
      %PresentationAttributes-Gradients;
      offset %Length; #REQUIRED >

Attribute definitions:

offset = "length"
  The offset attribute is either a <number> (usually ranging from 0 to 1) or a percentage (correspondingly usually ranging from 0% to 100%) which indicates where the gradient stop is placed. For linear gradients, the offset attribute represents a location along the gradient vector. For radial gradients, it represents a percentage distance from (fx,fy) to the edge of the outermost/largest circle.
  Animatable: yes.

Attributes defined elsewhere:
  %stdAttrs;, class, style, %PresentationAttributes-Gradients;.

The 'stop-color' property indicates what color to use at that gradient stop. The keyword currentColor and ICC colors can be specified in the same manner as within a <paint> specification for the 'fill' and 'stroke' properties.

'stop-color'

  Value: | currentColor | <color> [icc-color(<name>,<icccolorvalue>+)] | inherit
  Initial: | black
  Applies to: | 'stop' elements
  Inherited: | no
  Percentages: | N/A
  Media: | visual
  Animatable: | yes

The 'stop-opacity' property defines the opacity of a given gradient stop.

'stop-opacity'

  Value: | <alphavalue> | inherit
  Initial: | 1
  Applies to: | 'stop' elements
  Inherited: | no
  Percentages: | N/A
  Media: | visual
  Animatable: | yes

Some notes on gradients:

- Gradient offset values less than 0 (or less than 0%) are rounded up to 0%. Gradient offset values greater than 1 (or greater than 100%) are rounded down to 100%.
- It is necessary that at least two stops defined to have a gradient effect. If no stops are defined, then painting shall occur as if 'none' were specified as the paint style. If one stop is defined, then paint with the solid color fill using the color defined for that gradient stop.
- Each gradient offset value is required to be equal to or greater than the previous gradient stop's offset value. If a given gradient stop's offset value is not equal to or greater than all previous offset values, then the offset value is adjusted to be equal to the largest of all previous offset values.
- If two gradient stops have the same offset value, then the latter gradient stop controls the color value at the overlap point.

## 13.3 Patterns

A pattern is used to fill or stroke an object using a pre-defined graphic object which can be replicated ("tiled") at fixed intervals in x and y to cover the areas to be painted.

Patterns are defined using a 'pattern' element and then referenced by properties fill: and stroke:.

    <!ENTITY % patternExt "" >
    <!ELEMENT pattern (desc|title|metadata|defs|
                       path|text|rect|circle|ellipse|line|polyline|polygon|
                       use|image|svg|g|view|switch|a|altGlyphDef|
                       script|style|symbol|marker|clipPath|mask|
                       linearGradient|radialGradient|pattern|filter|cursor|font|
                       animate|set|animateMotion|animateColor|animateTransform|
                       color-profile|font-face
                       %ceExt;%patternExt;)* >
    <!ATTLIST pattern
      %stdAttrs;
      %xlinkRefAttrs;
      xlink:href %URI; #IMPLIED
      %testAttrs;
      %langSpaceAttrs;
      externalResourcesRequired %Boolean; #IMPLIED
      class %ClassList; #IMPLIED
      style %StyleSheet; #IMPLIED
      %PresentationAttributes-All;
      viewBox %ViewBoxSpec; #IMPLIED
      preserveAspectRatio %PreserveAspectRatioSpec; 'xMidYMid meet'
      patternUnits (userSpaceOnUse | userSpace | objectBoundingBox) #IMPLIED
      patternTransform %TransformList; #IMPLIED
      x %Coordinate; #IMPLIED
      y %Coordinate; #IMPLIED
      width %Length; #REQUIRED
      height %Length; #REQUIRED >

Attribute definitions:

patternUnits = "userSpaceOnUse | userSpace | objectBoundingBox"
  Defines the coordinate system for attributes x, y, width, height and the contents of the 'pattern'.
  If patternUnits="userSpaceOnUse", x, y, width, height and the contents of the 'pattern' represent values in the current user coordinate system in place at the time when the 'pattern' element is referenced (i.e., the user coordinate system for the element referencing the 'pattern' element via a 'fill' or 'stroke' property).
  If patternUnits="userSpace", x, y, width, height and the contents of the 'pattern' represent values in the current user coordinate system in place at the time when the 'pattern' element is defined.
  If patternUnits="objectBoundingBox", x, y, width, height represent fractions or percentages of the bounding box of the element to which the pattern is applied. Additionally, the user coordinate system for the contents of the pattern is established using the bounding box of the element to which the pattern is applied. (See Object bounding box units.)
  If attribute patternUnits is not specified, then the effect is as if a value of userSpaceOnUse were specified.
  Animatable: yes.
patternTransform = "<transform-list>"
  Contains the definitions of an optional additional transformation from the pattern coordinate system onto the target coordinate system (i.e., userSpaceOnUse, userSpace or objectBoundingBox). This allows for things such as skewing the pattern tiles. This additional transformation matrix is post-multiplied to (i.e., inserted to the right of) any previously defined transformations, including the implicit transformation necessary to convert from object bounding box units to user space.
  Animatable: yes.
x = "<coordinate>"
  x, y, width, height indicate how the pattern tiles are placed and spaced and represent coordinates and values in the coordinate space specified by patternUnits.
  If the attribute is not specified, the effect is as if a value of "0%" were specified.
  Animatable: yes.
y = "<coordinate>"
  See x.
  If the attribute is not specified, the effect is as if a value of "0%" were specified.
  Animatable: yes.
width = "<length>"
  See x.
  A negative value is an error (see Error processing). A value of zero disables rendering of the element (i.e., no paint is applied).
  Animatable: yes.
height = "<length>"
  See x.
  A negative value is an error (see Error processing). A value of zero disables rendering of the element (i.e., no paint is applied).
  Animatable: yes.
xlink:href = "<uri>"
  A URI reference to a different 'pattern' element within the current SVG document fragment. Any attributes which are defined on the referenced element which are not defined on this element are inherited by this element. If this element has children, and the referenced element does (possibly due to its own href attribute), then this element inherits the children from the referenced element. Inheritance can be indirect to an arbitrary level; thus, if the referenced element inherits attributes or children due to its own href attribute, then the current element can inherit those attributes or gradient stops.
  Animatable: yes.

Attributes defined elsewhere:
  %stdAttrs;, %langSpaceAttrs;, class, %testAttrs;, externalResourcesRequired, viewBox, preserveAspectRatio, %xlinkRefAttrs;, style, %PresentationAttributes-All;.

Example pattern01 shows how to fill a rectangle by referencing a linear gradient paint server.

    <?xml version="1.0" standalone="no"?>
    <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20000802//EN"
      "http://www.w3.org/TR/2000/CR-SVG-20000802/DTD/svg-20000802.dtd">
    <svg width="8cm" height="4cm" >
      <defs>
        <pattern id="TrianglePattern"
                 x="0" y="0" width="1cm" height="1cm"
                 viewBox="0 0 10 10" >
          <path d="M 0 0 L 7 0 L 3.5 7 z" style="fill:red; stroke:blue"/>
        </pattern>
      </defs>

      <!-- Outline the drawing area in blue -->
      <rect style="fill:none; stroke:blue"
            x=".01cm" y=".01cm" width="7.98cm" height="3.98cm"/>

      <!-- The ellipse is filled using a triangle pattern paint server
           and stroked with black -->
      <ellipse style="fill:url(#TrianglePattern); stroke:black"
               cx="4cm" cy="2cm" rx="3.5cm" ry="1.5cm" />
    </svg>

Example pattern01

View this example as SVG (SVG-enabled browsers only)

## 13.4 DOM interfaces

The following interfaces are defined below: SVGGradientElement, SVGLinearGradientElement, SVGRadialGradientElement, SVGStopElement, SVGPatternElement.

### Interface SVGGradientElement

The SVGGradientElement interface is a base interface used by SVGLinearGradientElement and SVGRadialGradientElement.

IDL Definition

      interface SVGGradientElement :
                      SVGElement,
                      SVGURIReference,
                      SVGExternalResourcesRequired,
                      SVGUnitTypes {

        // Spread Method Types
        const unsigned short SVG_SPREADMETHOD_UNKNOWN = 0;
        const unsigned short SVG_SPREADMETHOD_PAD     = 1;
        const unsigned short SVG_SPREADMETHOD_REFLECT = 2;
        const unsigned short SVG_SPREADMETHOD_REPEAT  = 3;

        readonly attribute SVGAnimatedEnumeration   gradientUnits;
        readonly attribute SVGAnimatedTransformList gradientTransform;
        readonly attribute SVGAnimatedEnumeration   spreadMethod;
      };

Definition group Spread Method Types
  Defined constants

    SVG_SPREADMETHOD_UNKNOWN |  | The type is not one of predefined types. It is invalid to attempt to define a new value of this type or to attempt to switch an existing value to this type.
    SVG_SPREADMETHOD_PAD |  | Corresponds to value pad.
    SVG_SPREADMETHOD_REFLECT |  | Corresponds to value reflect.
    SVG_SPREADMETHOD_REPEAT |  | Corresponds to value repeat.

Attributes
  readonly SVGAnimatedEnumeration gradientUnits
    Corresponds to attribute gradientUnits on the given element. Takes one of the constants defined in SVGUnitTypes.
  readonly SVGAnimatedTransformList gradientTransform
    Corresponds to attribute gradientTransform on the given element.
  readonly SVGAnimatedEnumeration spreadMethod
    Corresponds to attribute spreadMethod on the given element. One of the Spread Method Types.

### Interface SVGLinearGradientElement

The SVGLinearGradientElement interface corresponds to the 'linearGradient' element.

IDL Definition

      interface SVGLinearGradientElement : SVGGradientElement {
        readonly attribute SVGAnimatedLength x1;
        readonly attribute SVGAnimatedLength y1;
        readonly attribute SVGAnimatedLength x2;
        readonly attribute SVGAnimatedLength y2;
      };

Attributes
  readonly SVGAnimatedLength x1
    Corresponds to attribute x1 on the given 'linearGradient' element.
  readonly SVGAnimatedLength y1
    Corresponds to attribute y1 on the given 'linearGradient' element.
  readonly SVGAnimatedLength x2
    Corresponds to attribute x2 on the given 'linearGradient' element.
  readonly SVGAnimatedLength y2
    Corresponds to attribute y2 on the given 'linearGradient' element.

### Interface SVGRadialGradientElement

The SVGRadialGradientElement interface corresponds to the 'radialGradient' element.

IDL Definition

      interface SVGRadialGradientElement : SVGGradientElement {
        readonly attribute SVGAnimatedLength cx;
        readonly attribute SVGAnimatedLength cy;
        readonly attribute SVGAnimatedLength r;
        readonly attribute SVGAnimatedLength fx;
        readonly attribute SVGAnimatedLength fy;
      };

Attributes
  readonly SVGAnimatedLength cx
    Corresponds to attribute cx on the given 'radialGradient' element.
  readonly SVGAnimatedLength cy
    Corresponds to attribute cy on the given 'radialGradient' element.
  readonly SVGAnimatedLength r
    Corresponds to attribute r on the given 'radialGradient' element.
  readonly SVGAnimatedLength fx
    Corresponds to attribute fx on the given 'radialGradient' element.
  readonly SVGAnimatedLength fy
    Corresponds to attribute fy on the given 'radialGradient' element.

### Interface SVGStopElement

The SVGStopElement interface corresponds to the 'stop' element.

IDL Definition

      interface SVGStopElement :
                      SVGElement,
                      SVGStylable {

        readonly attribute SVGAnimatedNumber offset;
      };

Attributes
  readonly SVGAnimatedNumber offset
    Corresponds to attribute offset on the given 'stop' element.

### Interface SVGPatternElement

The SVGPatternElement interface corresponds to the 'pattern' element.

IDL Definition

      interface SVGPatternElement :
                      SVGElement,
                      SVGURIReference,
                      SVGTests,
                      SVGLangSpace,
                      SVGExternalResourcesRequired,
                      SVGStylable,
                      SVGFitToViewBox,
                      SVGUnitTypes {

        readonly attribute SVGAnimatedEnumeration   patternUnits;
        readonly attribute SVGAnimatedTransformList patternTransform;
        readonly attribute SVGAnimatedLength        x;
        readonly attribute SVGAnimatedLength        y;
        readonly attribute SVGAnimatedLength        width;
        readonly attribute SVGAnimatedLength        height;
      };

Attributes
  readonly SVGAnimatedEnumeration patternUnits
    Corresponds to attribute patternUnits on the given 'pattern' element. Takes one of the constants defined in SVGUnitTypes.
  readonly SVGAnimatedTransformList patternTransform
    Corresponds to attribute patternTransform on the given 'pattern' element.
  readonly SVGAnimatedLength x
    Corresponds to attribute x on the given 'pattern' element.
  readonly SVGAnimatedLength y
    Corresponds to attribute y on the given 'pattern' element.
  readonly SVGAnimatedLength width
    Corresponds to attribute width on the given 'pattern' element.
  readonly SVGAnimatedLength height
    Corresponds to attribute height on the given 'pattern' element.

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