gltut / Documents / Illumination / GenTwoTriangleQuad.lua

Jason McKesson 0ddefa0 

require "SvgWriter"
require "vmath"
require "Viewport"
require "SubImage"
require "_utils"

local subImageSize = 300;

local subImages = SubImage.SubImage(1, 1, subImageSize, subImageSize, 50, 0);

local coordSize = 2;

local vp = Viewport.Viewport(subImages:SubSize(), {0, 0}, coordSize)
local trans2 = Viewport.Transform2D()

local scaleFactor = 0.25;

-- Styles
local styleLib = SvgWriter.StyleLibrary();
local pointSize = 9;
local textSize = 25;

styleLib:AddStyle(nil, "triangle",

local quadPts =
	vmath.vec2(-0.8, 0.8),
	vmath.vec2(0.8, 0.8),
	vmath.vec2(0.8, -0.8),
	vmath.vec2(-0.8, -0.8),

quadPts = vp:Transform(quadPts);

local pointRadius = 5;
local radiusPt = vmath.vec2(pointRadius, pointRadius);

local writer = SvgWriter.SvgWriter(ConstructSVGName(arg[0]), {(subImages:Size().x + 1) .."px", (subImages:Size().y + 1) .. "px"});

	writer:Polygon({quadPts[1], quadPts[2], quadPts[3]}, {"triangle"});
	writer:Polygon({quadPts[1], quadPts[3], quadPts[4]}, {"triangle"});
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