isogrids (0ebc4875) · Commits · blackheaven / tinygraphs

draw/isogrids.go

+35 −27

Original line number	Diff line number	Diff line
		@@ -21,7 +21,7 @@ func IsogridsSVG(w http.ResponseWriter, key string, color1, color2 color.RGBA, s

		// log.Printf(style)

		// horizontal lines
		// vertical lines
		for xL := 0; xL < lines; xL++ {
		x := xL * fringeSize
		lastY := (lines - 1) * fringeSize
		@@ -38,6 +38,14 @@ func IsogridsSVG(w http.ResponseWriter, key string, color1, color2 color.RGBA, s
		}
		}

		// horizontal lines
		for yL := 0; yL < lines; yL++ {
		y := yL * fringeSize
		lastX := (lines - 1) * fringeSize
		style := fmt.Sprintf("stroke:black;stroke-width:2; %s", fillFromRGBA(color2))
		canvas.Line(0, y, lastX, y, style)
		}

		// diagonal lines, x --> y left down
		for xL := 0; xL < lines; xL++ {
		x := xL * fringeSize
		@@ -65,40 +73,40 @@ func IsogridsSVG(w http.ResponseWriter, key string, color1, color2 color.RGBA, s
		}
		}

		// diagonal lines, x --> y left up
		for xL := 0; xL < lines; xL++ {
		x := xL * fringeSize
		style := fmt.Sprintf("stroke:red;stroke-width:2; %s", fillFromRGBA(color2))
		if (xL % 2) != 0 {
		xLast := x
		yLast := (lines - 1) * fringeSize
		yPrev := ((lines - 1 - xL) + xL/2) * fringeSize
		if yPrev < (lines)*fringeSize {
		canvas.Line(xLast, yLast, 0, yPrev, style)
		}
		}
		}
		// // diagonal lines, x --> y left up
		// for xL := 0; xL < lines; xL++ {
		// x := xL * fringeSize
		// style := fmt.Sprintf("stroke:red;stroke-width:2; %s", fillFromRGBA(color2))
		// if (xL % 2) != 0 {
		// xLast := x
		// yLast := (lines - 1) * fringeSize
		// yPrev := ((lines - 1 - xL) + xL/2) * fringeSize
		// if yPrev < (lines)*fringeSize {
		// canvas.Line(xLast, yLast, 0, yPrev, style)
		// }
		// }
		// }

		// diagonal lines, y --> x down
		xLast := (lines - 1) * fringeSize
		for yL := 0; yL < lines; yL++ {
		style := fmt.Sprintf("stroke:red;stroke-width:2; %s", fillFromRGBA(color2))
		style := fmt.Sprintf("stroke:blue;stroke-width:2; %s", fillFromRGBA(color2))
		y := yL * fringeSize
		yDiag := y + (5 * fringeSize)
		if yDiag < ((lines - 1) * fringeSize) {
		// if yDiag < ((lines - 1) * fringeSize) {
		canvas.Line(0, y, xLast, yDiag, style)
		}
		//}
		}

		// diagonal lines, y --> x up
		for yL := 0; yL < lines; yL++ {
		style := fmt.Sprintf("stroke:blue;stroke-width:2; %s", fillFromRGBA(color2))
		y := yL * fringeSize
		yDiag := y - (5 * fringeSize)
		if yDiag > 0 {
		canvas.Line(0, y, xLast, yDiag, style)
		}
		}
		// // diagonal lines, y --> x up
		// for yL := 0; yL < lines; yL++ {
		// style := fmt.Sprintf("stroke:black;stroke-width:2; %s", fillFromRGBA(color2))
		// y := yL * fringeSize
		// yDiag := y - (5 * fringeSize)
		// if yDiag > 0 {
		// canvas.Line(0, y, xLast, yDiag, style)
		// }
		// }

		// diagonal lines, x --> y left
		for yL := 0; yL < lines; yL++ {