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TsgDXFBlock

Unit: DXFConv

Description

This class defines an item of BLOCK table of a CAD file. A block is a collection of objects which associated together to form a single object, or block definition. Use Entities property to obtain an entity in the collection.

Syntax

TsgDXFBlock = class(TsgDXFGroup)

Properties

PropertiesDescription
FlagsBlock-type flags (bit coded values, may be combined)
NameContains name of the block
OffsetContains coordinates of offset point
ReferencesGets a list of entities that use the block.
SpecPaperSpace
XrefReturns Xref entity if block contains it.
XrefPathSets or gets Xref path name if block contains it.
Derived from TsgDXFEntityDescription
BoxThe property determines the 3d box embraced the entity.
ColorThe property gets or sets entity color.
ColorCADThe property gets or sets a color for drawing entities.
ComplexThe property determines whether a entity is populated with child entities.
ConverterThe property returns the TsgDXFConverter class object.
CountThe property indicates the total number of child entities.
EntitiesThe property lists all child entities.
EntTypeThe property indicates type of an entity.
HandleThe property is used for finding entity links.
LayerThe property points to layer, containing given primitive if this layer is given.
LineTypeThe property sets and gets line type for an entity.
LineTypeScaleThe property sets and gets the Linetype scale.
LineWeightThe property sets or gets line weight in millimeters.
PaperSpaceThe property indicates Model Space and Paper Space entity segregation.
SrcEndThe property indicates end position of the entity description in the source CAD file.
SrcStartThe property indicates start position of the entity description in the source CAD file.
VisibilityThe property sets and gets entities visibility.
VisibleThe property determines whether the component appears onscreen.

Methods

MethodsDescription
AddEntityCall AddEntity to add a child entity.
AssignEntityCopies properties of source entity to current entity.
ClearCall Clear to delete all child entities.
CreateCreates internal objects after creating this object
DeleteEntityCall DeleteEntity to delete entity.
EntNameCall EntName to get the name of a block.
InsertEntityCall InsertEntity to add a specified entity to the list of child entities.
Derived from TsgDXFGroupDescription
DestroyFrees up internal objects before destroying this object
IterateThe method converts DXF/DWG tree structure to a linear sequence of entities, similar to Windows metafile.
Derived from TsgDXFEntityDescription
CloneThe method copies properties of source entity to current entity (include Handle).
DrawThe method generates the OnDraw event.
GetBoxPointsThe method is used in drawing cycle for fast checking whether the entity must be drawn.
GetThicknessThe method returns entity's thickness.
SetLTypeThe method sets line type of the entity.
SetLWeightThe method sets line weight width of the entity.

Events

Derived from TsgDXFEntityDescription
OnDrawThe event occurs when the Draw method is called.