core.vg - Vector Graphics Core

vg

vg {
 new
  # new paths[] -> vg0
 end;

 get
  # vgo -> oid
 
 vg0add.path
  # path

 new.path0
  # vg0, type, points.count, indices.count

 vg.dump
  # fmt, vg0
};

vg.vec2d

2D vector library formula

Interface vg.vec2d

vg.vec2d {
 pointv
  # vg0, x,y
 line
  # vg0, x0,y0, x1,y1
 tri
  # vg0, x0,y0, x1,y1, x2,y2
 rect
  # vg0, x,y, w,h
 quad
  # vg0, x0,y0, x1,y1, x2,y2, x3,y3
 circle
  # vg0, cx,cy, r, segs
 star
  # vg0, cx,cy, r.in, r.out, n
 spiral
  # vg0, cx,cy, r.in, r.out, loops, segs
};

vg.vec2d.pointv(vg0, x,y);
vg.vec2d.line(vg0, x0,y0, x1,y1);
vg.vec2d.tri(vg0, x0,y0, x1,y1, x2,y2);
vg.vec2d.rect(vg0, x,y, w,h);
vg.vec2d.quad(vg0, x0,y0, x1,y1, x2,y2, x3,y3);
vg.vec2d.circle(vg0, cx,cy, r, segs);
vg.vec2d.star(vg0, cx,cy, r.in, r.out, n);
vg.vec2d.spiral(vg0, cx,cy, r.in, r.out, loops, segs);

vg.curve3d

3D curve library formula

Import core.vg formulas

_ @1010;
_ @1100;
_ @core.vg;
_ @core.vg.vec2d.draw;
_ @core.vg.curve3d;
_ @core.vg.curve3d.draw;

Interface vg.vec2d

vg.curve3d {

 new
  # vg0

 # Use curve for operation. Selects dma
 use
  # vg0
 
 # Add new point
 add
   # x,y,z, d0,d1, p0,p1,p2,p3

 set.shader
  # vsh,fsh

};

vg.curve3d {

 # Generators

 gen.path0
  # p
 gen.rect0
  # p

 # Shaders

 shader.default;
 shader.simple1;

};

vg.curve3d.move.points0
 # v0

Example

vg0:=vg.new;

curve0:=vg.curve3d.new(vg0);

# add point
add {
 vg.curve3d.use(curve0);
 vg.curve3d.add(_0,_1,_2, _3,_4, _5, _6,_7,_8);
};

Draw formula

### draw

vg.vec2d.draw(vg0);