Sets dash pattern type.
Delphi syntax:
procedure SetDash ( DashArray: array of Byte; Phase: Byte );
C++ syntax:
void __fastcall SetDash ( const Byte * DashArray, const int DashArray_Size, Byte Phase);
Description:
يتحكم نمط line dash في نمط الشرطات والفجوات المستخدمة لرسم حدود المسارات. يحدد بواسطة dash array وdash phase. عناصر dash array أرقام تحدد أطوال الشرطات والفجوات المتناوبة؛ ويحدد dash phase المسافة داخل نمط dash التي يبدأ عندها
Examples of line dash patterns
| DASH ARRAY |
DASH PHASE |
APPEARANCE |
DESCRIPTION |
| [] [ 3 ] [ 2 ] [ 2 1 ] [ 3 5 ] [ 2 3 ] |
0 0 1 0 6 11 |
|
No dash 3 units on, 3 units off ... 1 on, 2 off, 2 on, 2 off, … 2 on, 1 off, 2 on, 1 off, … 2 off, 3 on, 5 off, 3 on, 5 off, … 1 on, 3 off, 2 on, 3 off, 2 on, …
|
Code Example
program FillExample;
{$APPTYPE CONSOLE}
uses
SysUtils, Graphics, Classes, HPDFDoc;
var
HPDF: THotPDF;
const
DashArray: array [0..3] of Byte = ( 6, 4, 2, 4 );
begin
HPDF := THotPDF.Create(nil);
try
HPDF.AutoLaunch := true; // PDF file will be shown automatically
HPDF.FileName := '.\Ellipse.pdf'; // Set PDF filename
HPDF.BeginDoc; // Create PDF file
HPDF.CurrentPage.SetDash( DashArray, 0 ); // Set - . - dash pattern
HPDF.CurrentPage.MoveTo ( 20, 20 ); // Move current point to 20, 20
HPDF.CurrentPage.LineTo ( 300, 100 ); // Draw line from current point to 200, 100
HPDF.CurrentPage.Stroke; // and stroke
HPDF.CurrentPage.NoDash; // Set solid dash pattern
HPDF.CurrentPage.MoveTo ( 300, 100 ); // Move current point to 300, 100
HPDF.CurrentPage.LineTo ( 10, 200 ); // Draw line from current point to 10, 100
HPDF.CurrentPage.Stroke; // and stroke
HPDF.EndDoc; // Close PDF file
finally
HPDF.Free;
end;
end.
انظر أيضا: NoDash