Monday, March 31st, 2014 at 2:27 pm. Whether your central heating or air conditioning system is running, when you detect any unpleasant smell coming from the air wafting through the vents, you need to have professionals investigate the cause right away. These odorsâmusty, mold, acrid, or anything elseâusually mean something serious has gone wrong in the system.
In its simplest form, a raster consists of a matrix of cells (or pixels) organized into rows and columns (or a grid) where each cell contains a value representing information, such as temperature. Rasters are digital aerial photographs, imagery from satellites, digital pictures, or even scanned maps.
Raster images are made of pixels. A pixel is a single point or the smallest single element in a display device. Vector images are mathematical calculations from one point to another that form geometrical shapes.ow to determine what size your raster image must be, for good quality printing: Multiply the resolution required by the area to be printed. Examples: If a printer requires a minimum of 300 ppi and you want to print an image in an area that is 5 inches wide, multiply 300 pixels x 5 inches (300 x 5 = 1500).