What you should already know

Before you continue, you should have some basic understanding of the following:

• HTML
• Basic XML

What is SVG
SVG (Scalable Vector Graphics = Scalable Vector Graphics) is a markup language created by the W3C and aimed at the representation of vector graphics (drawings and text).

SVG recommendations published or in preparation by the W3C are discussed in the Lesson on History of the Web.

In a vector graphic, the elements of the image are defined as elementary shapes (lines, rectangles, circles, curves, polygons, etc.), defined by tags similar to those in HTML. For this reason SVG is not a suitable format for photographs, but it is suitable for any type of drawing, technical or artistic.

• SVG stands for Scalable Vector Graphics
• SVG is used to define vector-based graphics for the Web
• SVG defines the graphics in XML format
• Every element and every attribute in SVG files can be animated
• SVG is a W3C recommendation
• SVG integrates with other W3C standards such as the DOM and XSL

The advantages of SVG are many:

1. SVG images can be enlarged to any scale without losing quality, since they are defined as shapes that the browser draws with the necessary precision.
2. SVG images tend to take up little space as they are defined by labels. The size in KB of the image is also independent of the size with which it is seen on the web page.
3. Images can be easily reused and combined as it is enough to copy the source code from one image to another.
4. Images can be dynamically modified using style sheets or javascript because they are part of the web page.
An SVG graphic can be included on a web page in two ways, as an internal object or as an external object.

You can embed SVG elements directly into your HTML pages.

The SVG plane

El plano SVG - SVG drawings are defined in an infinite plane in which the Y-axis is oriented downward, as shown in the following drawing, which shows the coordinate axes, four points in red, and their coordinates.

<svg version="1.1" xmlns="http://www.w3.org/2000/svg" width="400" height="400" viewBox="-200 -200 400 400" style="background-color: #eeeeee">

<line x1="-200" y1="0" x2="200" y2="0" stroke="black" stroke-width="1" />

<line x1="0" y1="-200" x2="0" y2="200" stroke="black" stroke-width="1" />

<text x="10" y="190" font-family="sans-serif" font-size="20" fill="black">Y</text>

<polyline points="-5,190 0,200 5,190" fill="none" stroke-width="1" stroke="black" />

<text x="180" y="-10" font-family="sans-serif" font-size="20" fill="black">X</text>

<polyline points="190,5 200,0 190,-5" fill="none" stroke-width="1" stroke="black" />

<polygon points="100,100 -100,100 -100,-100, 100,-100" fill="none" stroke-width="1" stroke="black" stroke-dasharray="5,5" />

<circle cx="100" cy="100" r="4" fill="red" />

<text x="105" y="120" font-family="sans-serif" font-size="18" fill="black">(100, 100)</text>

<circle cx="100" cy="-100" r="4" fill="red" />

<text x="105" y="-105" font-family="sans-serif" font-size="18" fill="black">(100, -100)</text>

<circle cx="-100" cy="-100" r="4" fill="red" />

<text x="-105" y="-105" font-family="sans-serif" font-size="18" fill="black" text-anchor="end">(-100, -100)</text>

<circle cx="-100" cy="100" r="4" fill="red" />

<text x="-105" y="120" font-family="sans-serif" font-size="18" fill="black" text-anchor="end">(-100, 100)</text>

</svg>

SVG Circle - <circle>

<svg height="100" width="100">

<circle cx="50" cy="50" r="40" stroke="black" stroke-width="3" fill="red" />

Sorry, your browser does not support inline SVG. 

</svg>

<svg

width="100" height="100" viewBox="-50 -50 100 100"

style="background-color: lightgray">

<circle cx="0" cy="0" r="50" fill="none" stroke="red" stroke-width="1" />

SVG <ellipse>

An ellipse is closely related to a circle. The difference is that an ellipse has an x and a y radius that differs from each other, while a circle has equal x and y radius:

Here is the SVG code:

<svg height="140" width="360">

<ellipse cx="200" cy="80" rx="100" ry="50"

style="fill:green;stroke:purple;stroke-width:2" />

</svg>

SVG <line>

SVG <polygon>

SVG <polyline>

SVG <path>

SVG <text>

Overlapping elements 1

Overlapping elements

Imágenes SVG

SVG Radial Gradient - <radialGradient>

1. HTML Image tag, code
2. How to code in HTML
3. HTML text tag
4. HTML text, how to display
5. Container responsive styles
6. HTML container tag
7. HTML container
8. HTML div style property
9. How to put text in image HTML
10. How to insert text in html code using javascript dynamically
11. HTML background Image full screen responsive
12. HTML List Bullet
13. HTML List Style Type
14. HTML List
15. HTML Color Text
16. HTML Colors
17. HTML Image Align
18. HTML Image Border
19. HTML Image Background
20. HTML Image Link
21. HTML Image Size
22. HTML Text Style
23. HTML Text Align
24. HTML Text Size
25. HTML Text Color Style
26. HTML Text Color
27. HTML Table Color
28. HTML Table Rowspan and Colspan
29. HTML Table Width
30. HTML Table Style
31. HTML Table Border
32. HTML Table
33. HTML Font Face
34. HTML Font Size
35. HTML Font Color
36. HTML headings tag, size, color, padding, align
37. HTML div border color
38. HTML div class tag attribute
39. HTML div class container
40. HTML form action - radio HTML form - how to create
41. HTML comment one line and multiple lines
42. HTML link open in new tab or window - how to create link
43. How to create HTML link without underline
44. HTML link tag with example
45. HTML button action - How to create a HTML button action, size
46. HTML button onclick - How to create a HTML button style onclick
47. HTML button link - How to create a button style in HTML
48. HTML table style, HTML border, width and height
49. HTML image, size, link and image background
50. HTML colors, background, text and border color