Commit 5a193925 authored by santiaago's avatar santiaago
Browse files

add random isogrids banner #36

parent b9def0d7

app-backend/main.go

+2 −0
Original line number Diff line number Diff line
@@ -26,6 +26,8 @@ func main() { 
	r.HandleFunc("/squares/banner/random", squares.BannerRandom)

	r.HandleFunc("/squares/banner/random/gradient", squares.BannerRandomGradient)

	r.HandleFunc("/squares/:key", squares.Square) //cached



	r.HandleFunc("/isogrids/banner/random", isogrids.BannerRandom)

	r.HandleFunc("/isogrids/:key", isogrids.Isogrids)

	r.HandleFunc("/spaceinvaders/:key", spaceinvaders.SpaceInvaders)

controllers/isogrids/banner.go

0 → 100644
+42 −0
Original line number Diff line number Diff line 
package isogrids



import (

	"image/color"

	"net/http"



	"github.com/taironas/tinygraphs/colors"

	"github.com/taironas/tinygraphs/draw/isogrids"

	"github.com/taironas/tinygraphs/extract"

	"github.com/taironas/tinygraphs/write"

)



// BannerRandom handler for /isogrids/banner/random.

// Generates a random banner isogrid image.

func BannerRandom(w http.ResponseWriter, r *http.Request) {

	width := extract.Width(r)

	height := extract.Height(r)



	colorMap := colors.MapOfColorThemes()

	bg, fg := extract.ExtraColors(r, colorMap)

	theme := extract.Theme(r)

	if val, ok := colorMap[theme]; ok {

		bg = val[0]

		fg = val[1]

	}



	var colors []color.RGBA

	if theme != "base" {

		if _, ok := colorMap[theme]; ok {

			numColors := extract.NumColors(r)

			colors = append(colors, colorMap[theme][0:numColors]...)

		} else {

			colors = append(colors, colorMap["base"]...)

		}

	} else {

		colors = append(colors, bg, fg)

	}



	xt := extract.XTriangles(r)

	write.ImageSVG(w)

	isogrids.Random(w, "", colors, width, height, xt)

}

controllers/isogrids/random.go

+1 −1
Original line number Diff line number Diff line
@@ -37,5 +37,5 @@ func Random(w http.ResponseWriter, r *http.Request) { 
	size := extract.Size(r)

	lines := extract.Lines(r)

	write.ImageSVG(w)

	isogrids.Random(w, "", colors, size, lines)

	isogrids.Random(w, "", colors, size, size, lines)

}

draw/isogrids/isogrids.go

+3 −3
Original line number Diff line number Diff line
@@ -10,11 +10,11 @@ import ( 
)



// Random creates an isogrids svg image with half diagonals.

func Random(w http.ResponseWriter, key string, colors []color.RGBA, size, lines int) {

func Random(w http.ResponseWriter, key string, colors []color.RGBA, width, height, lines int) {

	canvas := svg.New(w)

	canvas.Start(size, size)

	canvas.Start(width, height)



	fringeSize := size / lines

	fringeSize := width / lines



	// triangle grid here:

	for xL := -1; xL <= lines; xL++ {

extract/extract.go

+15 −0
Original line number Diff line number Diff line
@@ -187,3 +187,18 @@ func XSquares(r *http.Request) int { 
	}

	return 50

}



// XTriangles returns the value of the 'xt' parameter in the http.Request.

// Used to defined the number of triangles that are wanted in the x axis of an image

func XTriangles(r *http.Request) int {

	strXT := r.FormValue("xt")

	if len(strXT) > 0 {

		if xt, errXT := strconv.ParseInt(strXT, 0, 64); errXT == nil {

			ixt := int(xt)

			if ixt > 0 {

				return ixt

			}

		}

	}

	return 50

}