Lecture # 11 JavaScript Graphics. Scalable Vector Graphics (SVG) Scalable Vector Graphics (SVG), as the name implies, are - scalable (without pixelation):

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Lecture # 11 JavaScript Graphics

Scalable Vector Graphics (SVG) Scalable Vector Graphics (SVG), as the name implies, are - scalable (without pixelation): - composed of vectors: - can be created using HTML and javascript - can be read and displayed by Browsers A B C

Scalable Vector Graphics (SVG) Example: Red Circle with black outline <circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red" />

Scalable Vector Graphics (SVG) Example: Red Circle with black outline <circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red" /> Svg tags

Scalable Vector Graphics (SVG) Example: Red Circle with black outline <circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red" /> Where to find the description of the svg elements we will be using

Scalable Vector Graphics (SVG) Example: Red Circle with black outline <circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red" /> The kind of svg we are drawing

Scalable Vector Graphics (SVG) Example: Red Circle with black outline <circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red" /> Where to draw it (cx,cy) center x and center y.

Scalable Vector Graphics (SVG) Example: Red Circle with black outline <circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red" /> Radius, r = 40. r

Scalable Vector Graphics (SVG) Example: Red Circle with black outline <circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red" /> Color of outline of circle

Scalable Vector Graphics (SVG) Example: Red Circle with black outline <circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red" /> Width of outline of circle

Scalable Vector Graphics (SVG) Example: Red Circle with black outline <circle cx="100" cy="50" r="40" stroke="black" stroke-width="2" fill="red" /> Fill color of circle

SVG and XML SVG: Defines graphics in XML format HTML: Designed to display data XML: Designed to transport and store data - the focus is on what data is – it is a data format - XML does not DO anything - XML tags are not predefined – you must define your own tags (or have them defined as in " version="1.1" - XML is designed to be self-descriptive

Scalable Vector Graphics (SVG) Example 2: <rect width="300" height="100" style="fill:rgb(0,0,255);stroke-width:1;stroke:rgb(0,0,0)"/> What is it?

Scalable Vector Graphics (SVG) Example 2: <rect width="300" height="100" style="fill:rgb(0,0,255);stroke-width:1;stroke:rgb(0,0,0)"/> What is it?

Scalable Vector Graphics (SVG) Example 3: <rect x="50" y="20" width="150" height="150" style="fill:blue;stroke:pink;stroke-width:5;fill-opacity:0.1; stroke-opacity:0.9"/> What about this?

Scalable Vector Graphics (SVG) Example 3: <rect x="50" y="20" width="150" height="150" style="fill:blue;stroke:pink;stroke-width:5;fill-opacity:0.1; stroke-opacity:0.9"/> What about this?

Scalable Vector Graphics (SVG) Example 4: <rect x="50" y="20" rx="20" ry="20" width="150" height="150" style="fill:red;stroke:black;stroke-width:5;opacity:0.5"/> Or this?

Scalable Vector Graphics (SVG) Example 4: <rect x="50" y="20" rx="20" ry="20" width="150" height="150" style="fill:red;stroke:black;stroke-width:5;opacity:0.5"/> Or this?

Scalable Vector Graphics (SVG) Example 4: <rect x="50" y="20" rx="20" ry="20" width="150" height="150" style="fill:red;stroke:black;stroke-width:5;opacity:0.5"/> Or this? What does this do?

Scalable Vector Graphics (SVG) Example 4: <rect x="50" y="20" rx="20" ry="20" width="150" height="150" style="fill:red;stroke:black;stroke-width:5;opacity:0.5"/> Or this? Defines the radius of the corner rounding

Scalable Vector Graphics (SVG) Example 5: Creating a Canvas to draw on: The size of the canvas

Scalable Vector Graphics (SVG) Example 6: Text on a rectangle: The size of the canvas

Scalable Vector Graphics (SVG) Example 5: Rotating a shape: - apply a single attribute to a shape (or group of shapes) <rect x="150" y="50" width="50" height="50" transform="rotate( )"/> Rotate 45 degrees around this center

Other shapes, operations See