17.4 Vector graphics

Vector graphics can be resized without aliasing. Each picture is made up of objects and the computer remembers mathematical expressions that describe the objects. File storage formats are Corel Draw(.cdr), DrawPerfect(.wpg) and Windows metafile(.wmf).

True or False? Write out the true sentences and change the false sentences so that they are true.

 

Vector graphics are made up of objects such as a straight line, a curve or shape.

Vector graphics are created by painting programs.

Vector graphics will print at your output device's lowest quality.

Shapes are usually drawn by starting at the upper left-hand corner.

Editing a vector graphic involves editing each pixel, not the characteristics of each object.

Objects can be deleted, moved, cut or copied.

The size or shape of each object cannot be changed.

To move an object to the top, select the 'Send to back' command.

Objects that are associated can be grouped together as if they were a single object.

EDS is a common file storage format.

 

Write out the sentence and fill in the missing word

 

One of the most powerful ways of presenting information is by ?????

A ????? is the smallest part of the screen that can be controlled by the computer.

Draw programs create graphics by dividing the picture into a number of ????? such as a straight line, curve or shape.

In a painting program you can select a region by using a special tool such as a ?????.

????? hides parts of a picture you do not want to see.

Distorting may involve stretching, tilting, flipping and ????? a picture.

A ????? graphic treats each pixel on the screen individually and represents this by bits in memory.

Enlarging a bit-mapped graphic creates a staircase pattern called ?????

????? graphics are made up of objects such as a straight line, a curve or shape.

Vector graphics are edited using a ????? program.

    

 

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