For pretty pictures of which countries are naughty and nice.
bonus if its interactive (look google maps with regional bans).
Overlays are highly prioritized for fighting in GIS (Geographic Information System) analysis.
So in another sense Overlay has the ability to compile graphical destination maps on your computer screen/plot.
Economically, in digital maps to find all attributes that have information about the attribute to unify data from elements that are not the same,
In other words Overlays can be called transparent paper affixed based on illustrations, text, titles, pictures / photos or pages, this is for purposes of color applications, many of which can be used by overlay analysis for example, regional data, boundary areas from time to time, SDA, building. GIS can also provide accurate information in detecting a region.
For example:
For bitmap data.
In general, all images can be saved in file format:
a). EPS; the most popular file format for storing vector images even though the EPS format can also contain bitmap images.
b). PDF; file format that is quite versatile, which can contain any data including complete pages.
c). PICT; file format that can contain bitmap or vector data. For PICT format images can only be used by computers with Macintosh OS only.
Raster/bitmap.
Arranged by geometric objects made based on mathematical calculations
Compiled by objects called pixels
Independent resolution
Resolution dependent or influenced by resolution
The effect of magnification is not broken, blurred or damaged
The effect of magnification is broken, blurred and damaged if it exceeds the display tolerance
Storage size is relatively small
The storage size is relatively large
Used for illustrations with simple geometric shapes, solid colors or gradations without too many color variations. Suitable for logos and types of designs that rely on the simplicity of form.
Used for complex images, in the form of various colors and shapes that are diverse, such as photos from the camera shot.
Storage format can be AI, CDR, FH, EPS
Storage format for PSD, TIF, JPEG, GIF, BMP
