Commit 57e408ba authored by santiaago's avatar santiaago
Browse files

fix hexagon with equilateral triangles

parent 614be378

draw/isogrids/hexa.go

+7 −11
Original line number Diff line number Diff line
@@ -15,13 +15,9 @@ func Hexa(w http.ResponseWriter, key string, colors []color.RGBA, size, lines in 
	canvas.Start(size, size)



	fringeSize := size / lines

	log.Println(fringeSize)



	distance := distanceTo3rdPoint(fringeSize)



	fringeSize = distance

	lines = size / fringeSize

	offset := size - fringeSize*lines

	offset := ((fringeSize - distance) * lines) / 2

	log.Println(offset)



	for xL := 0; xL < lines/2; xL++ {
@@ -48,12 +44,12 @@ func Hexa(w http.ResponseWriter, key string, colors []color.RGBA, size, lines in 
				x1, y1, x2, y2, _, y3 = left1stTriangle(xL, yL, fringeSize, distance)

			}



			xs := []int{x2 + offset/2, x1 + offset/2, x2 + offset/2}

			ys := []int{y1 + offset/2, y2 + offset/2, y3 + offset/2}

			xs := []int{x2 + offset, x1 + offset, x2 + offset}

			ys := []int{y1, y2, y3}



			canvas.Polygon(xs, ys, fill1)



			xsMirror := mirrorCoordinates(xs, lines, fringeSize, offset)

			xsMirror := mirrorCoordinates(xs, lines, distance, offset*2)

			canvas.Polygon(xsMirror, ys, fill1)



			var x11, x12, y11, y12, y13 int
@@ -71,12 +67,12 @@ func Hexa(w http.ResponseWriter, key string, colors []color.RGBA, size, lines in 
				y12 = y1 + fringeSize

			}



			xs1 := []int{x12 + offset/2, x11 + offset/2, x12 + offset/2}

			ys1 := []int{y11 + offset/2, y12 + offset/2, y13 + offset/2}

			xs1 := []int{x12 + offset, x11 + offset, x12 + offset}

			ys1 := []int{y11, y12, y13}



			canvas.Polygon(xs1, ys1, fill2)



			xs1 = mirrorCoordinates(xs1, lines, fringeSize, offset)

			xs1 = mirrorCoordinates(xs1, lines, distance, offset*2)

			canvas.Polygon(xs1, ys1, fill2)

		}

	}