Cosc 4735 Vector Graphics.

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Presentation transcript:

Cosc 4735 Vector Graphics

What is Vector Graphics? Bitmap – A grid of pixels, each with its own color data Cannot be scaled or rotated cleanly JPG, PNG, GIF, etc. Vector – Path data between many connected nodes Scales and rotates without loss of clarity SVG, AI, PDF, EPS, etc. In the .SVG format, path data is saved as XML code

Android You starting in Android 5.0 (API 21+) you can define your images as vector drawables (eg vector graphics). Studio will then create the images needed anything before API 21, if you set the min below 21. This is really handy for FAB icons and other images. Studio has a large number of built in vg that you can use or create you own.

How To

How To (2)

Using the vg Same as you would use any graphic. Call for it like normal, so "@drawable/ic_garfield_the_cat" ImageView, ImageButton, wherever you’d be able to draw a bitmap Can determine size, color, angle, etc.

Making a custom VSG Can be made with programs like Inkscape, Adobe Illustrator, or found by searching the web Inkscape is free Make sure filename is all lowercase! Studio gets mad otherwise

References https://developer.android.com/training/material/drawables.html https://developer.android.com/studio/write/vector-asset-studio.html This a lot of information on supporting API 20 and below as well, the VectorDrawableCompat class.

Q A &