Glossary

The following terms are used in Palette Jigsaw.

Aspect Ratio
The aspect ratio of an image, puzzle or screen is its width divided by its height. If the device is held so that it is wider than tall, it has an aspect ratio > 1. Browsing pictures will display pictures whose aspect ratio matches the aspect ratio of the device. Only landscape images will show up in the browse list when the device is held in landscape orientation. Similarly only portrait pictures will display when the device is in portrait orientation. After a puzzle has started to be worked, though, it may be worked in either orientation.

Bounds
The smallest rectangle containing an object is its bounds.

Dragging
Moving a puzzle piece or palette by touching it and sliding the finger(s) across the screen. Using a single finger moves a puzzle piece. Using two or more fingers moves a palette.

Grid
Arrangement of puzzle pieces in columns and rows

Icon
Small picture used to represent a tool

Loupe
Tool used to view or select a small item

Merge
Add puzzle pieces from one palette to another palette. After a merge, all pieces from the two palettes are on only one of them.

Negative Space
Unoccupied space next to puzzle piece(s)

Palette
A movable rectangular area that can contain zero or more puzzle pieces. 

Perimeter
Path that surrounds an object. The perimeter of a puzzle piece, for example, defines the piece's shape

Pinch
gesture used with two fingers to zoom in or out of a palette or to merge two palettes

Reference Picture
picture used in making the puzzle

Scope
What is affected by a tool - scope is toggles using the "Ignore Hidden Palettes when Selecting" in the preferences screen. When ON, only visible palettes are in scope (pieces are selected only from visible palettes). When OFF, all palettes are in scope (pieces are selected from all palettes).

Solution Surface
Palette with a green felt background on which puzzle pieces are placed to solve the puzzle

Virtual Piece
A piece that exists only in the imagination of the user and the app, formed by looking at the perimeter of negative space