Difference between revisions of "ToCart"

From SCAR Divi Manual
Jump to: navigation, search
Line 2: Line 2:
 
<source lang="scar" lines="false">
 
<source lang="scar" lines="false">
 
function ToCart(Point: PPoint): TPoint;
 
function ToCart(Point: PPoint): TPoint;
 +
</source>
 +
 +
===Source Code===
 +
<source lang="scar">
 +
function ToCart(const Point: PPoint): TPoint;
 +
var
 +
  T: Double;
 +
begin
 +
  T := DegToRad(Point.T);
 +
  Result.x := Round(Point.R * Cos(T));
 +
  Result.y := Round(Point.R * Sin(T));
 +
end;
 
</source>
 
</source>
  

Revision as of 13:58, 3 July 2011

Definition

function ToCart(Point: PPoint): TPoint;

Source Code

function ToCart(const Point: PPoint): TPoint;
var
  T: Double;
begin
  T := DegToRad(Point.T);
  Result.x := Round(Point.R * Cos(T));
  Result.y := Round(Point.R * Sin(T));
end;

Availability

SCAR Divi 3.00 > Current

Description

Converts a given polar coordinate defined by the PPoint Point to a cartesian coordinate defined by a TPoint.

Example

var
  p: PPoint;
  tp: TPoint;

begin
  p.R := 4;
  p.T := 45;
  tp := ToCart(p);
  WriteLn('TPoint(' + IntToStr(tp.X) + ',' + IntToStr(tp.Y) + ')');
end.

Output:

TPoint(3,3)

See Also