// Draw "Hello World"
func Draw(gc draw2d.GraphicContext, text string) {
// Draw a rounded rectangle using default colors
draw2d.RoundRect(gc, 5, 5, 292, 205, 10, 10)
gc.FillStroke()
// Set the font luximbi.ttf
gc.SetFontData(draw2d.FontData{
Name: "luxi",
Family: draw2d.FontFamilyMono,
Style: draw2d.FontStyleBold | draw2d.FontStyleItalic})
// Set the fill text color to black
gc.SetFillColor(image.Black)
gc.SetDPI(72)
gc.SetFontSize(14)
// Display Hello World
gc.SetStrokeColor(color.NRGBA{0x33, 0xFF, 0x33, 0xFF})
gc.MoveTo(8, 0)
gc.LineTo(8, 52)
gc.LineTo(297, 52)
gc.Stroke()
gc.FillString(text)
gc.FillStringAt(text, 8, 52)
gc.Save()
gc.SetFillColor(color.NRGBA{0xFF, 0x33, 0x33, 0xFF})
gc.SetStrokeColor(color.NRGBA{0xFF, 0x33, 0x33, 0xFF})
gc.Translate(145, 85)
gc.StrokeStringAt(text, -50, 0)
gc.Rotate(math.Pi / 4)
gc.SetFillColor(color.NRGBA{0x33, 0x33, 0xFF, 0xFF})
gc.SetStrokeColor(color.NRGBA{0x33, 0x33, 0xFF, 0xFF})
gc.StrokeString(text)
gc.Restore()
}
func (h *spaceFillingImage) drawText(gc draw2d.GraphicContext, px1, py1 float64, t int) {
if !h.DrawText {
return
}
text := strconv.Itoa(t)
_, top, _, _ := gc.GetStringBounds(text)
gc.SetFillColor(h.TextColor)
gc.FillStringAt(text, px1+h.TextMargin, py1-top+h.TextMargin)
}
// Draw "Hello World"
func Draw(gc draw2d.GraphicContext, text string) {
// Draw a rounded rectangle using default colors
draw2dkit.RoundedRectangle(gc, 5, 5, 135, 95, 10, 10)
gc.FillStroke()
// Set the font luximbi.ttf
gc.SetFontData(draw2d.FontData{Name: "luxi", Family: draw2d.FontFamilyMono, Style: draw2d.FontStyleBold | draw2d.FontStyleItalic})
// Set the fill text color to black
gc.SetFillColor(image.Black)
gc.SetFontSize(14)
// Display Hello World
gc.FillStringAt("Hello World", 8, 52)
}
func (ts *TextSymbolizer) Draw(gc draw2d.GraphicContext, shape geom.Shape) {
if !ts.Applies(shape) {
return
}
if name := shape.Attribute(ts.s.Attr); name != "" {
gc.SetFontSize(ts.s.Size)
l, t, r, b := gc.GetStringBounds(name)
bb := shape.Bbox()
dx := math.Abs(bb[2] - bb[0])
dy := math.Abs(bb[3] - bb[1])
ox, oy := dx/2, dy/2
x, y := ts.r.matrix.TransformPoint(bb[0]+ox, bb[1]-oy)
gc.SetFillColor(ts.s.Fill)
gc.FillStringAt(name, x-(r-l)/2, y-(t-b)/2)
}
}
func drawText(gc draw2d.GraphicContext, text string, x, y float64) {
var fontSize float64 = 14
fontSizeHeight := fontSize + 14
if y < fontSizeHeight {
return
}
gc.SetFontData(draw2d.FontData{Name: "luxi", Family: draw2d.FontFamilyMono, Style: draw2d.FontStyleNormal})
// Set the fill text color to black
gc.SetFillColor(image.Black)
gc.SetFontSize(fontSize)
// 9px width each letter and 2px letter spacing at font-size 14
var yPos float64
for ; yPos < y; yPos = yPos + fontSizeHeight {
gc.FillStringAt(text, x, yPos)
}
}
// Draw "Hello World"
func DrawHello(gc draw2d.GraphicContext, text string) {
draw2d.SetFontFolder("static")
gc.SetFontData(draw2d.FontData{
Name: "Roboto",
})
gc.SetFontSize(14)
l, t, r, b := gc.GetStringBounds(text)
//log.Println(t, l, r, b)
draw2dkit.Rectangle(gc, 0, 0, r-l+30, b-t+30)
gc.SetFillColor(image.White)
gc.FillStroke()
draw2dkit.Rectangle(gc, 10, 10, r-l+20, b-t+20)
gc.SetFillColor(image.White)
gc.FillStroke()
gc.SetFillColor(color.NRGBA{R: 255, G: 0, B: 0, A: 255})
gc.FillStringAt(text, 15-l, 15-t)
}