Gradient refers to smooth transition of one color to another color within a shape. SVG provides two types of gradients.
-
Linear Gradients − Represents linear transition of one color to another from one direction to another.
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Radial Gradients − Represents circular transition of one color to another from one direction to another.
Linear Gradients
Declaration
Following is the syntax declaration of <linearGradient> element. We’ve shown main attributes only.
<linearGradient gradientUnits ="units to define co-ordinate system of contents of gradient" gradientTransform = "definition of an additional transformation from the gradient coordinate system onto the target coordinate system" x1="x-axis co-ordinate" y1="y-axis co-ordinate" x2="x-axis co-ordinate" y2="y-axis co-ordinate" spreadMethod="indicates method of spreading the gradient within graphics element" xlink:href="reference to another gradient" > </linearGradient>
Attributes
| Sr.No. | Name & Description |
|---|---|
| 1 | gradientUnits − units to define the coordinate system for the various length values within the gradient. If gradientUnits=”userSpaceOnUse”, values represent values in the current user coordinate system in place at the time when the gradient element is used. If patternContentUnits=”objectBoundingBox”, values represent values in fractions or percentages of the bounding box on the referencing element in place at the time when the gradient element is used. Default is userSpaceOnUse. |
| 2 | x1 − x-axis co-ordinate of the gradient vector. Defeault is 0. |
| 3 | y1 − y-axis co-ordinate of the gradient vector. Default is 0. |
| 4 | x2 − x-axis co-ordinate of the gradient vector. Defeault is 0. |
| 5 | y2 − y-axis co-ordinate of the gradient vector. Default is 0. |
| 6 | spreadMethod − indicates method of spreading the gradient within graphics element. Default is ‘pad’. |
| 7 | xlink:href − used to refer to another gradient. |
Example
testSVG.htm
<html>
<title>SVG Linear Gradient</title>
<body>
<h1>Sample SVG Linear Gradient</h1>
<svg width="600" height="600">
<defs>
<linearGradient id="sampleGradient">
<stop offset="0%" stop-color="#FF0000" />
<stop offset="100%" stop-color="#00FFF00" />
</linearGradient>
</defs>
<g>
<text x="30" y="50" >Using Linear Gradient: </text>
<rect x="100" y="100" width="200" height="200" stroke="green" stroke-width="3"
fill="url(#sampleGradient)" />
</g>
</svg>
</body>
</html>
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One <linearGradient> element defined as sampleGradient.
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In linearGradient, two offsets are defined with two colors.
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in rect element, in fill attribute, url of the gradient is specified to fill the rectangle with gradient created earlier.
Output
Open textSVG.htm in Chrome web browser. You can use Chrome/Firefox/Opera to view SVG image directly without any plugin. Internet Explorer 9 and higher also supports SVG image rendering.
Radial Gradients
Declaration
Following is the syntax declaration of <radialGradient> element. We’ve shown main attributes only.
<radialGradient gradientUnits ="units to define co-ordinate system of contents of gradient" gradientTransform = "definition of an additional transformation from the gradient coordinate system onto the target coordinate system" cx="x-axis co-ordinate of center of circle." cy="y-axis co-ordinate of center of circle." r="radius of circle" fx="focal point for the radial gradient" fy="focal point for the radial gradient" spreadMethod="indicates method of spreading the gradient within graphics element" xlink:href="reference to another gradient" > </radialGradient>
Attributes
| Sr.No. | Name & Description |
|---|---|
| 1 | gradientUnits − units to define the coordinate system for the various length values within the gradient. If gradientUnits=”userSpaceOnUse”, values represent values in the current user coordinate system in place at the time when the gradient element is used. If patternContentUnits=”objectBoundingBox”, values represent values in fractions or percentages of the bounding box on the referencing element in place at the time when the gradient element is used. Default is userSpaceOnUse. |
| 2 | cx − x-axis co-ordinate of the center of largest circle of gradient vector. Defeault is 0. |
| 3 | cy − y-axis co-ordinate of the center of largest circle of gradient vector. Default is 0. |
| 4 | r − radius of the center of largest circle of gradient vector. Defeault is 0. |
| 5 | fx − focal point of radial gradient. Default is 0. |
| 6 | fy − focal point of radial gradient. Default is 0. |
| 7 | spreadMethod − indicates method of spreading the gradient within graphics element. Default is ‘pad’. |
| 8 | xlink:href − used to refer to another gradient. |
Example
testSVG.htm
<html>
<title>SVG Radial Gradient</title>
<body>
<h1>Sample SVG Radial Gradient</h1>
<svg width="600" height="600">
<defs>
<radialGradient id="sampleGradient">
<stop offset="0%" stop-color="#FF0000" />
<stop offset="100%" stop-color="#00FFF00" />
</radialGradient>
</defs>
<g>
<text x="30" y="50" >Using Radial Gradient: </text>
<rect x="100" y="100" width="200" height="200" stroke="green" stroke-width="3"
fill="url(#sampleGradient)" />
</g>
</svg>
</body>
</html>
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One <radialGradient> element defined as sampleGradient.
-
In radialGradient, two offsets are defined with two colors.
-
in rect element, in fill attribute, url of the gradient is specified to fill the rectangle with gradient created earlier.
Output
Open textSVG.htm in Chrome web browser. You can use Chrome/Firefox/Opera to view SVG image directly without any plugin. Internet Explorer 9 and higher also supports SVG image rendering.
Table of Contents
1.svg tutorial
2.svg overview
3.svg shapes
4.svg text
5.svg stroke
6.svg filters
7.svg patterns
8.svg gradients
9.svg interactivity
10.svg linking
11.svg loaders
12.svg dialog box effects
13.svg icons
14.svg clock
15.svg drag
16.svg keypoint
17.svg maps
18.svg amchart
19.svg graph
20.svg flat surface shade
21.svg image filter effect
22.svg text effects
23.svg text with css effects
24.svg arrow effects
25.svg brand effects
26.svg gooey effects
27.svg gradients
28.svg playful effects
29.svg scroll effects
30.svg slide show effects
31.svg tab effects
32.svg raphaeljs effects
33.svg velocityjs effects
34.svg walkwayjs effects
35.svg zpath
36.svg vaguejs effects
37.svg transformation effects
38.svg full screen overlay effects
39.svg laylinepainterjs effects
40.svg demo game
41.svg real time svg ad
42.svg questions and answers tutorialspoing
43.svg quick guide
44.svg useful resources
45.discuss svg