Object 0 "Line" (Entities) Changed in Version 2021.0

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Data Block Sequence

Data Block 001( x1, y1 )

- Start-point

Data Block 002( x2, y2 )

- End-point

 

The points (x1,y1) and (x2,y2) determine the start-point and end-point of the line. The line type has to start at the point (x1,y1). When drawing lines to pixel-oriented devices or bitmaps, the final pixel has to be drawn in any case! In Windows this has to be done explicitly.

 

A line is by definition an "open" object, i.e. it has a non-closed outline and cannot be filled.

 

Attributes New in Version 2021.0

A line may contain attribute data blocks (see MKI_BLOCK_ATTRIBUTE) of types "local", "outline", and "point". Their position in the list of data blocks must be as follows:

-Outline attributes must be placed anywhere behind the first point. Any outline attribute after the first point data block belongs to the outline.
-Point attributes must be placed behind the respective point. Any point attribute after point data block P and before the next point data block (or end of object) belongs to that point P.
-Local attributes should be placed behind all other datablocks and attributes.

The total number of attributes of each type (local, outline, point) per respective element (entity, outline, and point) is limited to MKI_ATTRIBS_PER_OBJECT.

 

Interface Command Sequence

MKI_ObjectOpen, Type = MKI_OBJ_LINE

MKI_ObjectAddPoint, Type = MKI_DB_POINT_START

MKI_ObjectAddPoint, Type = MKI_DB_POINT_END

MKI_ObjectFastInsert

 

Use the MKI_PARSE_OBJ_LINE class to parse the data blocks of such an object in memory.

 

CAD6interface 2024.2 - Copyright 2024 Malz++Kassner® GmbH