TIELineLayer.LineLength

Declaration

property LineLength: Integer;

Description

Provides an alternative way to set the size of the line (other than setting the rectangle via Width and Height).

Comparison

TIELineLayer provides three ways to position the line depending on your requirements. All the following create a 45 deg. line from 100,100 to 300,300

1. Standard TIELayer methods

ImageEnView1.CurrentLayer.PosX   := 100;
ImageEnView1.CurrentLayer.PosY   := 100;
ImageEnView1.CurrentLayer.Width := 200;
ImageEnView1.CurrentLayer.Height := 200;

2. Setting starting and end points

TIELineLayer( ImageEnView1.CurrentLayer ).LinePoint1 := Point( 100, 100 );
TIELineLayer( ImageEnView1.CurrentLayer ).LinePoint2 := Point( 300, 300 );

2. Setting line length

TIELineLayer( ImageEnView1.CurrentLayer ).AutoSize := False;
ImageEnView1.CurrentLayer.PosX   := 100;
ImageEnView1.CurrentLayer.PosY   := 100;
ImageEnView1.CurrentLayer.Rotate := -45;
TIELineLayer( ImageEnView1.CurrentLayer ).LineLength := 280;

Example

// Create a layer 100 pixels long at 45 degrees
ImageEnView1.LayersAdd( ielkLine );
TIELineLayer( ImageEnView1.CurrentLayer ).LineLength := 100;
TIELineLayer( ImageEnView1.CurrentLayer ).Rotate := 45;
ImageEnView1.Update();

TIELineLayer.LineLength