Class TCellElementSegment

Unit

ScreenObjectUnit

Declaration

type TCellElementSegment = class(TObject)

Description

TCellElementSegment represents the 2D intersection of one segment of a TScreenObject with a cell or element in the grid.

Hierarchy

TObject
TCellElementSegment

Overview

Fields

	`FCol: integer;`
	`FEndPosition: TEdgePosition;`
	`FLayer: integer;`
	`FVertexIndex: integer;`
	`FRow: integer;`
	`FStartPosition: TEdgePosition;`
	`FX1: double;`
	`FX2: double;`
	`FY1: double;`
	`FY2: double;`

Methods

function Length: double;

Properties

	`property Col: integer read FCol write FCol;`
	`property EndPosition: TEdgePosition read FEndPosition write FEndPosition;`
	`property Layer: integer read FLayer write FLayer;`
	`property VertexIndex: integer read FVertexIndex write FVertexIndex;`
	`property Row: integer read FRow write FRow;`
	`property StartPosition: TEdgePosition read FStartPosition write FStartPosition;`
	`property X1: double read FX1 write FX1;`
	`property X2: double read FX2 write FX2;`
	`property Y1: double read FY1 write FY1;`
	`property Y2: double read FY2 write FY2;`

Description

Fields

	`FCol: integer;`
`FCol`: integer; See Col.

	`FEndPosition: TEdgePosition;`
`FEndPosition`: TEdgePosition; See EndPosition.

	`FLayer: integer;`
`FLayer`: integer; See Layer.

	`FVertexIndex: integer;`
`FVertexIndex`: integer; See VertexIndex.

	`FRow: integer;`
`FRow`: integer; See Row.

	`FStartPosition: TEdgePosition;`
`FStartPosition`: TEdgePosition; See StartPosition.

	`FX1: double;`
`FX1`: double; See X1.

	`FX2: double;`
`FX2`: double; See X2.

	`FY1: double;`
`FY1`: double; See Y1.

	`FY2: double;`
`FY2`: double; See Y2.

Methods

	`function Length: double;`
`Length` returns the length of this `TCellElementSegment`.

Properties

	`property Col: integer read FCol write FCol;`
`Col` is the column of the grid which this `TCellElementSegment` intersects. In this context, column can represent a column of elements or a column of cells depending on which this `TCellElementSegment` is intersecting.

	`property EndPosition: TEdgePosition read FEndPosition write FEndPosition;`
If the end of this `TCellElementSegment` is at the edge of the cell or element, `EndPosition` is epLast. If it is a vertex on the TScreenObject so that the point is in the interior of the cell or element, it is epMiddle.

	`property Layer: integer read FLayer write FLayer;`
`Layer` is the layer of the grid which this `TCellElementSegment` intersects. In this context, layer can represent a layer of elements or a layer of cells depending on which this `TCellElementSegment` is intersecting.

	`property VertexIndex: integer read FVertexIndex write FVertexIndex;`
`VertexIndex` is the index of the point in Points that comes before this `TCellElementSegment`.

	`property Row: integer read FRow write FRow;`
`Row` is the row of the grid which this `TCellElementSegment` intersects. In this context, row can represent a row of elements or a row of cells depending on which this `TCellElementSegment` is intersecting.

	`property StartPosition: TEdgePosition read FStartPosition write FStartPosition;`
If the start of this `TCellElementSegment` is at the edge of the cell or element, `StartPosition` is epFirst. If it is a vertex on the TScreenObject so that the point is in the interior of the cell or element, it is epMiddle.

	`property X1: double read FX1 write FX1;`
`X1` is the X-coordinate of the start of this `TCellElementSegment`.

	`property X2: double read FX2 write FX2;`
`X2` is the X-coordinate of the end of this `TCellElementSegment`.

	`property Y1: double read FY1 write FY1;`
`Y1` is the Y-coordinate of the start of this `TCellElementSegment`.

	`property Y2: double read FY2 write FY2;`
`Y2` is the Y-coordinate of the end of this `TCellElementSegment`.

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