Windows Bitmap (*.bmp)

Widely used raster file. It can be compressed using Run-Length Encoding (RLE) which is a lossless compression method or alternatively can be without compression. It has a colour depth of up to 32 bits. All Bitmap versions were designed for computers containing Intel processors. The main advantages are usability and wide spread software support.

SIS supports the following BMP sub-formats:

• 1-bit
• 4-bit (with optional RLE compression)
• 8-bit (with optional RLE compression)
• 15-bit
• 16-bit
• 24-bit
• 32-bit

Dataset Properties

• Attributes
• Class name
• Coordinate Reference System
• Description
• EPSG Code
• Editable
• Feature table
• Layers
• Maximum number of open Gateways
• Modified
• Name
• Next item ID
• Notes
• Number of Items
• Scale
• Size
• report

Compatibility:

• Cadcorp SIS Map Modeller
• Cadcorp SIS Map Editor
• Cadcorp SIS Map Manager
• Cadcorp SIS Map Express
• Cadcorp SIS ActiveX Modeller
• Cadcorp SIS ActiveX Manager
• Cadcorp SIS ActiveX Viewer
• Cadcorp GeognoSIS

Dataset Properties

• Attributes: _attributes$
  A list of attributes held by the dataset.
  
  
• Class name: _class$
  The class name of the dataset.
  
  
• Coordinate Reference System: _projection$
  The dataset Coordinate Reference System in Open Geospatial Consortium (OGC) Well-Known-Text format. (Notice that some SIS Coordinate Reference System objects are not supported in OGC.)
  
  
• Description: _DESC$
  A textual description of the object.
  
  
• EPSG Code: _epsg&
  The matching EPSG code, if any.
  
  
• Editable: _bEditable&
  Is the dataset editable?
  
  
• Feature table: _featureTable$
  The Feature Table which dataset items with no Feature Table of their own use when their Feature code is set. This Feature Table is also used to get information about available feature codes, and to create a default Feature Filter.
  
  Note: This does not override the Feature Table on an item.
  
  
• Layers: _layers$
  The set of all values the Layer property for all items in the dataset.
  
  
• Maximum number of open Gateways: _nMaxGatewayOpen&
  The maximum number of Gateway sub-datasets a dataset should attempt to open simultaneously.
  
  
• Modified: _bModified&
  Has the dataset been modified?
  
  
• Name: _name$
  The dataset name. For a file-based dataset this will be the filename.
  
  
• Next item id: _idNextItem&
  The Item ID which will be used for the next Item created in this dataset.
  
  
• Notes: _notes$
  User notes on dataset.
  
  
• Number of Items: _nItems&
  The number of items in the dataset.
  
  
• Scale: _scale#
  The dataset scale.
  
  
• Size: _size&
  The amount of memory, in bytes, that the dataset uses.
  
  
• report: _report$
  This reports: _name$, _DESC$, _crs$, _epsg&, _loadTime#.
  
  

See full list of Dataset Formats

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