Optimization the compressed raster

The given mode is recommended to be applied after editing Raster map, after repeated installations of a raster map framework, at an incongruity of the raster image in different scales, and also to decrease  the raster file size.

The mode is intended for ordering the header, the image blocks and the other service  raster structures.

Processing kind:

- Optimization mode is used for ordering the header, the image blocks and the other service raster structures. The RST format file at processing with usage Optimization mode will be transformed into RSW format.

- Compression mode packs image blocks, essentially reducing the file volume, and also orders header and other service raster structures. Display of the rasters optimized with compression may be slowed down. The RST format file at processing with usage Compression mode will be transformed into RSW format.

- Decompression mode is used for undo the compressed raster.

- Compression and Optimization mode are used for the compressed raster  and fulfils ordering the header, the image blocks and the other service structures.  The raster after performance of the given mode remains compressed.

Additional options:  

- The option Duplicate source file leaves a backup raster map copy on a disk. The backup RST format raster copy is created with a name *. ~ RT. The backup RSW format raster copy is created with a name *. ~ RW.

- The option Cut image by frame is available at processing a raster map with the established framework. After execution of the process of optimization or compression using this option the output file will contain only the image area limited by the external dimensions of the framework.

- The option Formation of the reduced copy starts a mode of creating a reduced copy of a raster directly after an execution of process of optimization (compression) of a raster.

- The option Redraw of map carries out updating a window of a map directly after the execution of process of optimization (compression) of a raster.

Methods of activation the mode Raster optimization:

1. It is necessary to select a raster for compression or optimization from the dialogue Raster List (View \ Raster List) . Then to  click on the button Properties and in the appeared menu to choose  the item Optimization.

2. It is necessary set current a raster for compression or optimization from Raster Editor (Tools \ Raster Editor)  by the modes Select raster, Select next raster, Select previous raster. Further to open the auxiliary panel Work with raster by click on the button Raster Editor panel and to select Raster optimization button.