ryanbugden / eyeliner Goto Github PK

# run inside the merz playground extension

from merz.tools.drawingTools import NSImageDrawingTools


def eyelinerSymbolFactory(
        radius,
        stretch=0.7,
        strokeColor=(0, 0, 0, 1),
        strokeWidth=1
        ):
    # calcute the width and height
    width = radius * 6 * stretch * 2 + strokeWidth * 2
    height = radius * 2 + strokeWidth * 2
    # create a image draw bot 
    bot = NSImageDrawingTools((width, height))
    # get a pen
    pen = bot.BezierPath()
    # draw the eye
    pen.moveTo((6 * radius * stretch, 0))
    pen.curveTo(
        (2 * radius * stretch, 0),
        (1.25 * radius * stretch, -radius),
        (0, -radius))
    pen.curveTo(
        (-1.25 * radius * stretch, -radius),
        (-2 * radius * stretch, 0),
        (-6 * radius * stretch, 0))
    pen.curveTo(
        (-2 * radius * stretch, 0),
        (-1.25 * radius * stretch, radius),
        (0, radius))
    pen.curveTo(
        (1.25 * radius * stretch, radius),
        (2 * radius * stretch, 0),
        (6 * radius * stretch, 0))
    pen.closePath()

    bot.fill(None)
    bot.stroke(*strokeColor)
    bot.strokeWidth(strokeWidth)
    bot.translate(width / 2, height / 2)
    bot.drawPath(pen)
    # return the image
    return bot.getImage()

# register the factory
merz.SymbolImageVendor.registerImageFactory("eyeliner.eye", eyelinerSymbolFactory)

######## the can happen in a separate script

# add your symbol
symbolLayer = container.appendSymbolSublayer(
    position=(100, 100),
    imageSettings=dict(
        name="eyeliner.eye",
        radius=10, 
        strokeColor=(1, 0, 0.77, 1)       
    )
)

symbolLayer = container.appendSymbolSublayer(
    position=(200, 100),
    imageSettings=dict(
        name="eyeliner.eye",
        radius=10, 
        stretch=.3,
        strokeColor=(1, 0, 0.77, 1)       
    )
)

symbolLayer = container.appendSymbolSublayer(
    position=(300, 100),
    rotation=30,
    imageSettings=dict(
        name="eyeliner.eye",
        radius=10, 
        stretch=.3,
        strokeColor=(1, 0, 0.77, 1)       
    )
)

symbolLayer = container.appendSymbolSublayer(
    position=(400, 100),
    rotation=40,
    imageSettings=dict(
        name="eyeliner.eye",
        radius=10, 
        stretch=.3,
        strokeColor=(0, 1, 0.77, 1)       
    )
)