mirror of
https://github.com/moparisthebest/Simba
synced 2024-11-14 05:15:16 -05:00
c59ea10a2c
git-svn-id: http://www.villavu.com/repositories/merlijn/mufasa@127 3f818213-9676-44b0-a9b4-5e4c4e03d09d
72 lines
1.9 KiB
ObjectPascal
72 lines
1.9 KiB
ObjectPascal
{
|
|
This file is part of the Mufasa Macro Library (MML)
|
|
Copyright (c) 2009 by Raymond van Venetië and Merlijn Wajer
|
|
|
|
MML is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
MML is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with MML. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
See the file COPYING, included in this distribution,
|
|
for details about the copyright.
|
|
|
|
Mufasa Math Unit for the Mufasa Macro Library
|
|
}
|
|
|
|
unit mmath;
|
|
// mufasa math
|
|
|
|
{$mode objfpc}{$H+}
|
|
|
|
interface
|
|
|
|
uses
|
|
Classes, SysUtils,MufasaTypes;
|
|
|
|
function RotatePoints(P: TPointArray; A, cx, cy: Extended): TPointArray;
|
|
function RotatePoint(p: TPoint; angle, mx, my: Extended): TPoint;
|
|
|
|
|
|
implementation
|
|
|
|
{/\
|
|
Rotates the given points (P) by A (in radians) around the point defined by cx, cy.
|
|
/\}
|
|
|
|
function RotatePoints(P: TPointArray; A, cx, cy: Extended): TPointArray;
|
|
|
|
var
|
|
I, L: Integer;
|
|
|
|
begin
|
|
L := High(P);
|
|
SetLength(Result, L + 1);
|
|
for I := 0 to L do
|
|
begin
|
|
Result[I].X := Round(cx + cos(A) * (p[i].x - cx) - sin(A) * (p[i].y - cy));
|
|
Result[I].Y := Round(cy + sin(A) * (p[i].x - cx) + cos(A) * (p[i].y - cy));
|
|
end;
|
|
end;
|
|
|
|
{/\
|
|
Rotates the given point (p) by A (in radians) around the point defined by cx, cy.
|
|
/\}
|
|
|
|
function RotatePoint(p: TPoint; angle, mx, my: Extended): TPoint;
|
|
|
|
begin
|
|
Result.X := Round(mx + cos(angle) * (p.x - mx) - sin(angle) * (p.y - my));
|
|
Result.Y := Round(my + sin(angle) * (p.x - mx) + cos(angle) * (p.y- my));
|
|
end;
|
|
|
|
end.
|
|
|