六月婷婷综合激情-六月婷婷综合-六月婷婷在线观看-六月婷婷在线-亚洲黄色在线网站-亚洲黄色在线观看网站

明輝手游網中心：是一個免費提供流行視頻軟件教程、在線學習分享的學習平臺！

一些對于點的函數

發表時間：2024-06-16 來源：明輝站整理相關軟件相關文章人氣：

[摘要]unit Functs; interface uses WinTypes, Classes, Graphics, SysUtils; type TPoint2D = record X, Y: Real; end; TPoint3D = record X, Y, Z:...
unit Functs;

interface

uses
  WinTypes, Classes, Graphics, SysUtils;

type
  TPoint2D = record
    X, Y: Real;
  end;
  TPoint3D = record
    X, Y, Z: Real;
  end;

function Point2D(X, Y: Real): TPoint2D;
function RoundPoint(P: TPoint2D): TPoint;
function FloatPoint(P: TPoint): TPoint2D;
function Point3D(X, Y, Z: Real): TPoint3D;
function Angle2D(P: TPoint2D): Real;
function Dist2D(P: TPoint2D): Real;
function Dist3D(P: TPoint3D): Real;
function RelAngle2D(PA, PB: TPoint2D): Real;
function RelDist2D(PA, PB: TPoint2D): Real;
function RelDist3D(PA, PB: TPoint3D): Real;
procedure Rotate2D(var P: TPoint2D; Angle2D: Real);
procedure RelRotate2D(var P: TPoint2D; PCentr: TPoint2D; Angle2D: Real);
procedure Move2D(var P: TPoint2D; Angle2D, Distance: Real);
function Between(PA, PB: TPoint2D; Preference: Real): TPoint2D;
function DistLine(A, B, C: Real; P: TPoint2D): Real;
function Dist2P(P, P1, P2: TPoint2D): Real;
function DistD1P(DX, DY: Real; P1, P: TPoint2D): Real;
function NearLine2P(P, P1, P2: TPoint2D; D: Real): Boolean;
function AddPoints(P1, P2: TPoint2D): TPoint2D;
function SubPoints(P1, P2: TPoint2D): TPoint2D;

function Invert(Col: TColor): TColor;
function Dark(Col: TColor; Percentage: Byte): TColor;
function Light(Col: TColor; Percentage: Byte): TColor;
function Mix(Col1, Col2: TColor; Percentage: Byte): TColor;
function MMix(Cols: array of TColor): TColor;
function Log(Base, Value: Real): Real;
function Modulator(Val, Max: Real): Real;
function M(I, J: Integer): Integer;
function Tan(Angle2D: Real): Real;
procedure Limit(var Value: Integer; Min, Max: Integer);
function Exp2(Exponent: Byte): Word;
function GetSysDir: String;
function GetWinDir: String;

implementation

function Point2D(X, Y: Real): TPoint2D;
begin
  Point2D.X := X;
  Point2D.Y := Y;
end;

function RoundPoint(P: TPoint2D): TPoint;
begin
  RoundPoint.X := Round(P.X);
  RoundPoint.Y := Round(P.Y);
end;

function FloatPoint(P: TPoint): TPoint2D;
begin
  FloatPoint.X := P.X;
  FloatPoint.Y := P.Y;
end;

function Point3D(X, Y, Z: Real): TPoint3D;
begin
  Point3D.X := X;
  Point3D.Y := Y;
  Point3D.Z := Z;
end;

function Angle2D(P: TPoint2D): Real;
begin
  if P.X = 0 then
  begin
    if P.Y > 0 then Result := Pi / 2;
    if P.Y = 0 then Result := 0;
    if P.Y < 0 then Result := Pi / -2;
end
else
Result := Arctan(P.Y / P.X);

if P.X < 0 then
begin
if P.Y < 0 then Result := Result + Pi;
if P.Y >= 0 then Result := Result - Pi;
  end;

  If Result < 0 then Result := Result + 2 * Pi;
end;

function Dist2D(P: TPoint2D): Real;
begin
Result := Sqrt(P.X * P.X + P.Y * P.Y);
end;

function Dist3D(P: TPoint3D): Real;
begin
Dist3d := Sqrt(P.X * P.X + P.Y * P.Y + P.Z * P.Z);
end;

function RelAngle2D(PA, PB: TPoint2D): Real;
begin
RelAngle2D := Angle2D(Point2D(PB.X - PA.X, PB.Y - PA.Y));
end;

function RelDist2D(PA, PB: TPoint2D): Real;
begin
Result := Dist2D(Point2D(PB.X - PA.X, PB.Y - PA.Y));
end;

function RelDist3D(PA, PB: TPoint3D): Real;
begin
RelDist3D := Dist3D(Point3D(PB.X - PA.X, PB.Y - PA.Y, PB.Z - PA.Z));
end;

procedure Rotate2D(var P: TPoint2D; Angle2D: Real);
var
Temp: TPoint2D;
begin
Temp.X := P.X * Cos(Angle2D) - P.Y * Sin(Angle2D);
Temp.Y := P.X * Sin(Angle2D) + P.Y * Cos(Angle2D);
P := Temp;
end;

procedure RelRotate2D(var P: TPoint2D; PCentr: TPoint2D; Angle2D: Real);
var
Temp: TPoint2D;
begin
Temp := SubPoints(P, PCentr);
Rotate2D(Temp, Angle2D);
P := AddPoints(Temp, PCentr);
end;

procedure Move2D(var P: TPoint2D; Angle2D, Distance: Real);
var
Temp: TPoint2D;
begin
Temp.X := P.X + (Cos(Angle2D) * Distance);
Temp.Y := P.Y + (Sin(Angle2D) * Distance);
P := Temp;
end;

function Between(PA, PB: TPoint2D; Preference: Real): TPoint2D;
begin
Between.X := PA.X * Preference + PB.X * (1 - Preference);
Between.Y := PA.Y * Preference + PB.Y * (1 - Preference);
end;

function DistLine(A, B, C: Real; P: TPoint2D): Real;
begin
Result := (A * P.X + B * P.Y + C) / Sqrt(Sqr(A) + Sqr(B));
end;

function Dist2P(P, P1, P2: TPoint2D): Real;
begin
Result := DistLine(P1.Y - P2.Y, P2.X - P1.X, -P1.Y * P2.X + P1.X * P2.Y, P);
end;

function DistD1P(DX, DY: Real; P1, P: TPoint2D): Real;
begin
Result := DistLine(DY, -DX, -DY * P1.X + DX * P1.Y, P);
end;

function NearLine2P(P, P1, P2: TPoint2D; D: Real): Boolean;
begin
Result := False;
if DistD1P(-(P2.Y - P1.Y), P2.X - P1.X, P1, P) * DistD1P(-(P2.Y - P1.Y), P2.X - P1.X, P2, P) <= 0 then
if Abs(Dist2P(P, P1, P2)) < D then Result := True;
end;

function AddPoints(P1, P2: TPoint2D): TPoint2D;
begin
AddPoints := Point2D(P1.X + P2.X, P1.Y + P2.Y);
end;

function SubPoints(P1, P2: TPoint2D): TPoint2D;
begin
SubPoints := Point2D(P1.X - P2.X, P1.Y - P2.Y);
end;

function Invert(Col: TColor): TColor;
begin
Invert := not Col;
end;

function Dark(Col: TColor; Percentage: Byte): TColor;
var
R, G, B: Byte;
begin
R := GetRValue(Col); G := GetGValue(Col); B := GetBValue(Col);
R := Round(R * Percentage / 100);
G := Round(G * Percentage / 100);
B := Round(B * Percentage / 100);
Dark := RGB(R, G, B);
end;

function Light(Col: TColor; Percentage: Byte): TColor;
var
R, G, B: Byte;
begin
R := GetRValue(Col); G := GetGValue(Col); B := GetBValue(Col);
R := Round(R * Percentage / 100) + Round(255 - Percentage / 100 * 255);
G := Round(G * Percentage / 100) + Round(255 - Percentage / 100 * 255);
B := Round(B * Percentage / 100) + Round(255 - Percentage / 100 * 255);
Light := RGB(R, G, B);
end;

function Mix(Col1, Col2: TColor; Percentage: Byte): TColor;
var
R, G, B: Byte;
begin
R := Round((GetRValue(Col1) * Percentage / 100) + (GetRValue(Col2) * (100 - Percentage) / 100));
G := Round((GetGValue(Col1) * Percentage / 100) + (GetGValue(Col2) * (100 - Percentage) / 100));
B := Round((GetBValue(Col1) * Percentage / 100) + (GetBValue(Col2) * (100 - Percentage) / 100));
Mix := RGB(R, G, B);
end;

function MMix(Cols: array of TColor): TColor;
var
I, R, G, B, Length: Integer;
begin
Length := High(Cols) - Low(Cols) + 1;
R := 0; G := 0; B := 0;
for I := Low(Cols) to High(Cols) do
begin
R := R + GetRValue(Cols[I]);
G := G + GetGValue(Cols[I]);
B := B + GetBValue(Cols[I]);
end;
R := R div Length;
G := G div Length;
B := B div Length;
MMix := RGB(R, G, B);
end;

function Log(Base, Value: Real): Real;
begin
Log := Ln(Value) / Ln(Base);
end;

function Power(Base, Exponent: Real): Real;
begin
Power := Ln(Base) * Exp(Exponent);
end;

function Modulator(Val, Max: Real): Real;
begin
Modulator := (Val / Max - Round(Val / Max)) * Max;
end;

function M(I, J: Integer): Integer;
begin
M := ((I mod J) + J) mod J;
end;

function Tan(Angle2D: Real): Real;
begin
Tan := Sin(Angle2D) / Cos(Angle2D);
end;

procedure Limit(var Value: Integer; Min, Max: Integer);
begin
if Value < Min then Value := Min;
if Value > Max then Value := Max;
end;

function Exp2(Exponent: Byte): Word;
var
  Temp, I: Word;
begin
  Temp := 1;
  for I := 1 to Exponent do
    Temp := Temp * 2;
  Result := Temp;
end;

function GetSysDir: String;
var
  Temp: array[0..255] of Char;
begin
  GetSystemDirectory(Temp, 256);
  Result := StrPas(Temp);
end;

function GetWinDir: String;
var
  Temp: array[0..255] of Char;
begin
  GetWindowsDirectory(Temp, 256);
  Result := StrPas(Temp);
end;

end.
主站蜘蛛池模板： 添人人躁日日躁夜夜躁夜夜揉 | 欧美性猛交xxxx乱大交中文 | 欧美专区在线 | 亚洲免费精品 | 欧美亚洲网 | 中文字幕波多野不卡一区 | 影音先锋亚洲综合小说在线 | 亚洲第一黄网 | 中文字幕在线视频在线看 | 天天骑夜夜操 | 在线观看亚洲天堂 | 中文字幕在线精品视频入口一区 | 日本在线高清视频 | 小香蕉影院| 四虎影视ww5234hucomww网站 | 午夜亚洲国产成人不卡在线 | 亚洲一级片免费 | 思思久久96热在精品国产免费 | 日韩欧美一区二区中文字幕 | 在线免费日韩 | 欧美特黄一区二区三区 | 欧美一线天 | 亚洲首页成人有声小说网 | 婷婷色九月综合激情丁香 | 在线免费观看亚洲视频 | 四虎网站在线播放 | 欧美性视频一区二区三区 | 天天躁夜夜躁狠狠躁2023 | 中国xxxx色视频在线观看 | 性大特级毛片视频 | 三级大黄 | 日韩精选| 日本道高清 | 亚洲精品免费视频 | 日日摸夜夜添夜夜爽免费视频 | 羞羞一区二区三区四区片 | 日比免费视频 | 日本片网址 | 亚洲黄色一区 | 倩女还魂在线观看完整版免费 | 欧美亚洲日本一区 |