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Added cyl/cir

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neauoire 2020-05-14 08:22:38 +09:00
parent 9a9e510503
commit e03fc53695
3 changed files with 137 additions and 64 deletions
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170
units/Graf3DScene/Graf3DPrimitives.pas
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@ -4,66 +4,142 @@ interface
uses
FixMath, Graf3D, Graf3DScene;
procedure SetArc3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
procedure SetBox3D (var shape: Shape3D; x, y, z, w, h, d, ax, az: Fixed);
{2d}
procedure SetTri3D (var shape: Shape3D; x, y, z, w, h: Fixed);
procedure SetRect3D (var shape: Shape3D; x, y, z, w, d: Fixed);
procedure SetCircle3D (var shape: Shape3D; x, y, z, r: Fixed);
{3d}
procedure SetWedge3D (var shape: Shape3D; x, y, z, w, h, d, a: Fixed);
procedure SetBox3D (var shape: Shape3D; x, y, z, w, h, d, ax, az: Fixed);
procedure SetCyl3D (var shape: Shape3D; x, y, z, w, h, d, r: Fixed);
procedure SetPyramid3D (var shape: Shape3D; x, y, z, w, h, d, ax, az: Fixed);
implementation
{privates}
procedure AddLink3D (var shape: Shape3D; a, b: Integer);
begin
shape.length := shape.length + 1;
SetLk3D(shape.edges[shape.length], @shape.vertices[a], @shape.vertices[b]);
end;
procedure AddTri3D (var shape: Shape3D; x, y, z, w, h: Fixed);
var
voff, eoff, foff: Integer; { vertices offset}
begin
voff := shape.verticesLength;
foff := shape.facesLength;
eoff := shape.length;
SetPt3D(shape.vertices[voff + 1], Long2Fix(x), Long2Fix(y + h div 2), Long2Fix(z));
SetPt3D(shape.vertices[voff + 2], Long2Fix(x + w div 2), Long2Fix(y - h div 2), Long2Fix(z));
SetPt3D(shape.vertices[voff + 3], Long2Fix(x - w div 2), Long2Fix(y - h div 2), Long2Fix(z));
SetLk3D(shape.edges[eoff + 1], @shape.vertices[voff + 1], @shape.vertices[voff + 2]);
SetLk3D(shape.edges[eoff + 2], @shape.vertices[voff + 2], @shape.vertices[voff + 3]);
SetLk3D(shape.edges[eoff + 3], @shape.vertices[voff + 3], @shape.vertices[voff + 1]);
SetFc3D(shape.faces[foff + 1], @shape.vertices[voff + 1], @shape.vertices[voff + 2], @shape.vertices[voff + 3]);
shape.verticesLength := voff + 3;
shape.facesLength := foff + 1;
shape.length := eoff + 3;
end;
procedure AddRect3D (var shape: Shape3D; x, y, z, w, h: Fixed);
var
voff, eoff, foff: Integer; { vertices offset}
begin
voff := shape.verticesLength;
foff := shape.facesLength;
eoff := shape.length;
SetPt3D(shape.vertices[voff + 1], Long2Fix(x + w div 2), Long2Fix(y + h div 2), Long2Fix(z));
SetPt3D(shape.vertices[voff + 2], Long2Fix(x + w div 2), Long2Fix(y - h div 2), Long2Fix(z));
SetPt3D(shape.vertices[voff + 3], Long2Fix(x - w div 2), Long2Fix(y - h div 2), Long2Fix(z));
SetPt3D(shape.vertices[voff + 4], Long2Fix(x - w div 2), Long2Fix(y + h div 2), Long2Fix(z));
SetLk3D(shape.edges[eoff + 1], @shape.vertices[voff + 1], @shape.vertices[voff + 2]);
SetLk3D(shape.edges[eoff + 2], @shape.vertices[voff + 2], @shape.vertices[voff + 3]);
SetLk3D(shape.edges[eoff + 3], @shape.vertices[voff + 3], @shape.vertices[voff + 4]);
SetLk3D(shape.edges[eoff + 4], @shape.vertices[voff + 4], @shape.vertices[voff + 1]);
SetFc3D(shape.faces[foff + 1], @shape.vertices[voff + 1], @shape.vertices[voff + 2], @shape.vertices[voff + 3]);
SetFc3D(shape.faces[foff + 2], @shape.vertices[voff + 3], @shape.vertices[voff + 4], @shape.vertices[voff + 1]);
shape.verticesLength := voff + 4;
shape.facesLength := foff + 2;
shape.length := eoff + 4;
end;
procedure AddCircle3D (var shape: Shape3D; x, y, z, r: Fixed);
var
voff, eoff, foff: Integer; { vertices offset}
i, segs: Integer;
offx, offy: Fixed;
pi, radians: Fixed;
arc, angle: Fixed;
begin
voff := shape.verticesLength;
foff := shape.facesLength;
eoff := shape.length;
segs := 16;
arc := FracDiv(360, Long2Fix(segs));
for i := 1 to segs do
begin
angle := FixMul(arc, Long2Fix(i));
radians := FracMul(angle, FixDiv(205887, 180));
offx := FracMul(Long2Fix(r), FracCos(radians));
offy := FracMul(Long2Fix(r), FracSin(radians));
SetPt3D(shape.vertices[voff + i], round(Long2Fix(x) + offx), round(Long2Fix(y) + offy), round(Long2Fix(z)));
if i <> segs then
SetLk3D(shape.edges[eoff + i], @shape.vertices[voff + i], @shape.vertices[voff + i + 1]);
end;
SetLk3D(shape.edges[eoff + segs], @shape.vertices[voff + segs], @shape.vertices[voff + 1]);
shape.verticesLength := voff + segs;
shape.facesLength := foff + 0;
shape.length := eoff + segs;
end;
{publics}
procedure SetTri3D (var shape: Shape3D; x, y, z, w, h: Fixed);
begin
AddTri3D(shape, x, y, z, w, h);
end;
procedure SetRect3D (var shape: Shape3D; x, y, z, w, d: Fixed);
begin
AddRect3D(shape, x, y, z, w, d);
end;
procedure SetCircle3D (var shape: Shape3D; x, y, z, r: Fixed);
begin
AddCircle3D(shape, x, y, z, r);
end;
procedure SetBox3D (var shape: Shape3D; x, y, z, w, h, d, ax, az: Fixed);
var
i: Integer;
begin
SetPt3D(shape.origin, Long2Fix(x), Long2Fix(y), Long2Fix(z));
SetPt3D(shape.vertices[1], Long2Fix(x + w div 2 - ax), Long2Fix(y + h div 2), Long2Fix(z + d div 2 - az));
SetPt3D(shape.vertices[2], Long2Fix(x + w div 2 - ax), Long2Fix(y + h div 2), Long2Fix(z - d div 2 + ax));
SetPt3D(shape.vertices[3], Long2Fix(x - w div 2 + ax), Long2Fix(y + h div 2), Long2Fix(z - d div 2 + az));
SetPt3D(shape.vertices[4], Long2Fix(x - w div 2 + ax), Long2Fix(y + h div 2), Long2Fix(z + d div 2 - az));
SetPt3D(shape.vertices[5], Long2Fix(x + w div 2), Long2Fix(y - h div 2), Long2Fix(z + d div 2));
SetPt3D(shape.vertices[6], Long2Fix(x + w div 2), Long2Fix(y - h div 2), Long2Fix(z - d div 2));
SetPt3D(shape.vertices[7], Long2Fix(x - w div 2), Long2Fix(y - h div 2), Long2Fix(z - d div 2));
SetPt3D(shape.vertices[8], Long2Fix(x - w div 2), Long2Fix(y - h div 2), Long2Fix(z + d div 2));
SetLk3D(shape.edges[1], @shape.vertices[1], @shape.vertices[2]);
SetLk3D(shape.edges[2], @shape.vertices[2], @shape.vertices[3]);
SetLk3D(shape.edges[3], @shape.vertices[3], @shape.vertices[4]);
SetLk3D(shape.edges[4], @shape.vertices[4], @shape.vertices[1]);
SetLk3D(shape.edges[5], @shape.vertices[5], @shape.vertices[6]);
SetLk3D(shape.edges[6], @shape.vertices[6], @shape.vertices[7]);
SetLk3D(shape.edges[7], @shape.vertices[7], @shape.vertices[8]);
SetLk3D(shape.edges[8], @shape.vertices[8], @shape.vertices[5]);
SetLk3D(shape.edges[9], @shape.vertices[1], @shape.vertices[5]);
SetLk3D(shape.edges[10], @shape.vertices[2], @shape.vertices[6]);
SetLk3D(shape.edges[11], @shape.vertices[3], @shape.vertices[7]);
SetLk3D(shape.edges[12], @shape.vertices[4], @shape.vertices[8]);
SetFc3D(shape.faces[1], @shape.vertices[1], @shape.vertices[2], @shape.vertices[5]);
SetFc3D(shape.faces[2], @shape.vertices[2], @shape.vertices[5], @shape.vertices[6]);
shape.verticesLength := 8;
shape.facesLength := 2;
shape.length := 12;
AddRect3D(shape, x, y, z + d div 2, w, h);
AddRect3D(shape, x, y, z - d div 2, w, h);
for i := 1 to 4 do
AddLink3D(shape, i, i + 4);
end;
procedure SetWedge3D (var shape: Shape3D; x, y, z, w, h, d, a: Fixed);
var
i: Integer;
begin
SetPt3D(shape.origin, Long2Fix(x), Long2Fix(y), Long2Fix(z));
SetPt3D(shape.vertices[1], Long2Fix(x + a), Long2Fix(y + h div 2), Long2Fix(z - d div 2));
SetPt3D(shape.vertices[2], Long2Fix(x + a), Long2Fix(y + h div 2), Long2Fix(z + d div 2));
SetPt3D(shape.vertices[3], Long2Fix(x + w div 2), Long2Fix(y - h div 2), Long2Fix(z + d div 2));
SetPt3D(shape.vertices[4], Long2Fix(x + w div 2), Long2Fix(y - h div 2), Long2Fix(z - d div 2));
SetPt3D(shape.vertices[5], Long2Fix(x - w div 2), Long2Fix(y - h div 2), Long2Fix(z - d div 2));
SetPt3D(shape.vertices[6], Long2Fix(x - w div 2), Long2Fix(y - h div 2), Long2Fix(z + d div 2));
SetLk3D(shape.edges[1], @shape.vertices[1], @shape.vertices[2]);
SetLk3D(shape.edges[2], @shape.vertices[1], @shape.vertices[4]);
SetLk3D(shape.edges[3], @shape.vertices[1], @shape.vertices[5]);
SetLk3D(shape.edges[4], @shape.vertices[2], @shape.vertices[3]);
SetLk3D(shape.edges[5], @shape.vertices[2], @shape.vertices[6]);
SetLk3D(shape.edges[6], @shape.vertices[3], @shape.vertices[4]);
SetLk3D(shape.edges[7], @shape.vertices[4], @shape.vertices[5]);
SetLk3D(shape.edges[8], @shape.vertices[5], @shape.vertices[6]);
SetLk3D(shape.edges[9], @shape.vertices[6], @shape.vertices[3]);
SetFc3D(shape.faces[1], @shape.vertices[1], @shape.vertices[2], @shape.vertices[3]);
SetFc3D(shape.faces[2], @shape.vertices[1], @shape.vertices[3], @shape.vertices[4]);
shape.verticesLength := 6;
shape.facesLength := 2;
shape.length := 9;
AddTri3D(shape, x, y, z + d div 2, w, h);
AddTri3D(shape, x, y, z - d div 2, w, h);
for i := 1 to 3 do
AddLink3D(shape, i, i + 3);
end;
procedure SetCyl3D (var shape: Shape3D; x, y, z, w, h, d, r: Fixed);
var
i: Integer;
begin
SetPt3D(shape.origin, Long2Fix(x), Long2Fix(y), Long2Fix(z));
AddCircle3D(shape, x, y, z + d div 2, r);
AddCircle3D(shape, x, y, z - d div 2, r);
for i := 1 to 16 do
AddLink3D(shape, i, i + 16);
end;
procedure SetPyramid3D (var shape: Shape3D; x, y, z, w, h, d, ax, az: Fixed);

2
units/Graf3DScene/Graf3DScene.pas
View File

@ -21,7 +21,7 @@ interface
Shape3D = record
origin: Point3D;
length, verticesLength, facesLength: Integer;
vertices: array[1..9] of Point3D;
vertices: array[1..10] of Point3D;
edges: array[1..13] of Link3D;
faces: array[1..6] of Face3D;
end;

29
units/Graf3DScene/main.pas
View File

@ -4,8 +4,8 @@ program ExampleScene;
FixMath, Graf3D, Graf3DScene, Graf3DPrimitives, Graf3DStructures;
var
arc1, box1, wed1, pyr1: Shape3D;
arc2, box2, wed2, pyr2: Shape3D;
wed1, box1, cyl1: Shape3D;
tri1, rec1, cir1: Shape3D;
begin
@ -13,24 +13,21 @@ begin
SetScene3D(scene);
SetArc3D(arc1, -100, 0, 100, 100, 100, 100);
SetBox3D(box1, -100, 0, 100, 100, 100, 100, 0, 0);
SetWedge3D(wed1, 0, 0, 100, 100, 100, 100, 0);
SetPyramid3D(pyr1, 100, 0, 100, 100, 100, 100, 0, 0);
SetWedge3D(wed1, -100, 0, 100, 100, 100, 100, 0);
SetBox3D(box1, 0, 0, 100, 100, 100, 100, 0, 0);
SetCyl3D(cyl1, 100, 0, 100, 100, 100, 100, 50);
SetBox3D(box2, -100, 0, -100, 100, 100, 100, 25, 25);
SetWedge3D(wed2, 0, 0, -100, 100, 100, 100, 50);
SetPyramid3D(pyr2, 100, 0, -100, 100, 100, 100, 50, 50);
SetTri3D(tri1, -100, -0, 300, 100, 100);
SetRect3D(rec1, 0, 0, 300, 100, 100);
SetCircle3D(cir1, 100, 0, 300, 50);
AddShape3D(scene, @arc1);
AddShape3D(scene, @arc2);
AddShape3D(scene, @box1);
AddShape3D(scene, @wed1);
AddShape3D(scene, @pyr1);
AddShape3D(scene, @box1);
AddShape3D(scene, @cyl1);
AddShape3D(scene, @box2);
AddShape3D(scene, @wed2);
AddShape3D(scene, @pyr2);
AddShape3D(scene, @tri1);
AddShape3D(scene, @rec1);
AddShape3D(scene, @cir1);
InitWindow;