Article Tutorials/Drawing Shapes (filled polygons)

Displaying Images

Gideros Studio has a simple way of creating graphics in the way of Shapes.

To create a shape, you use draw it using line commands. Once created, the shape can be altered by rotating, changing transparency and scaling.

local myShape = Shape.new()
myShape:setLineStyle(2)
myShape:setFillStyle(Shape.SOLID, 0x9900ff)
myShape:beginPath()
myShape:moveTo(1,1)
myShape:lineTo(100,1)
myShape:lineTo(100,100)
myShape:lineTo(1,100)
myShape:lineTo(1,1)
myShape:endPath()
stage:addChild(myShape)



This will draw a purple rectangle.

PurpleRectangle.png


Manipulating your shape:

myShape:setPosition(75,0)
myShape:setRotation(45)
myShape:setAlpha(0.5)



Rotated-Rectangle.png


There are a few options with setFillStyle:

Shape.NONE = No fill

Shape.SOLID = Solid colour fill

Shape.TEXTURE = Fill your shape with the contents of a PNG for the texture

Also, there’s a few options for setLineStyle. The width, colour and alpha values.

setFillStyle(Shape.SOLID, 0x0000ff, 0.25)

This will set the shape as solid with a blue colour filling and a transparency of 0.25.


Note: This tutorial was written by Jason Oakley and was originally available here: http://bluebilby.com/2013/04/10/gideros-mobile-tutorial-displaying-graphics/.