public FormTess()
{
InitializeComponent();
rdoSimpleIncCurveFlattener.Checked = true;
rdoSimpleIncCurveFlattener.CheckedChanged += (s, e) => UpdateOutput();
//
rdoSubdivCureveFlattener.CheckedChanged += (s, e) => UpdateOutput();
textBox1.KeyUp += (s, e) => UpdateOutput();
rdoTessPoly2Tri.CheckedChanged += (s, e) => UpdateOutput();
rdoTessSGI.CheckedChanged += (s, e) => UpdateOutput();
chkShowContourAnalysis.CheckedChanged += (s, e) => UpdateOutput();
txtIncrementalTessStep.KeyUp += (s, e) => UpdateOutput();
txtDivCurveRecursiveLimit.KeyUp += (s, e) => UpdateOutput();
txtDivAngleTolerenceEpsilon.KeyUp += (s, e) => UpdateOutput();
string testFont = "c:\\Windows\\Fonts\\Tahoma.ttf";
using (FileStream fs = new FileStream(testFont, FileMode.Open, FileAccess.Read))
{
OpenFontReader reader = new OpenFontReader();
_typeface = reader.Read(fs);
}
_tovxs = new GlyphTranslatorToVxs();
_glyphPathBuilder = new GlyphOutlineBuilder(_typeface);
//
_tessTool = new TessTool();
}
//-------------
public TextPrinter()
{
FontSizeInPoints = 14;
ScriptLang = ScriptLangs.Latin;
//
_curveFlattener = new SimpleCurveFlattener();
_tessTool = new TessTool();
}
public GlyphDemo()
{
SingleChar = "";
string testFont = "c:\\Windows\\Fonts\\Tahoma.ttf";
using (FileStream fs = new FileStream(testFont, FileMode.Open, FileAccess.Read))
{
OpenFontReader reader = new OpenFontReader();
_typeface = reader.Read(fs);
}
_tovxs = new Typography.OpenFont.Contours.GlyphTranslatorToVxs();
_glyphPathBuilder = new Typography.OpenFont.Contours.GlyphOutlineBuilder(_typeface);
//
_tessTool = new TessTool();
}
/// <summary>
/// tess and read result as triangle list vertex array (for GLES draw-array)
/// </summary>
/// <param name="tessTool"></param>
/// <param name="vertex2dCoords"></param>
/// <param name="contourEndPoints"></param>
/// <param name="vertexCount"></param>
/// <returns></returns>
public static float[] TessAsTriVertexArray(this TessTool tessTool,
float[] vertex2dCoords,
int[] contourEndPoints,
out int vertexCount)
{
if (!tessTool.TessPolygon(vertex2dCoords, contourEndPoints))
{
vertexCount = 0;
return(null);
}
//results
//1.
List <ushort> indexList = tessTool.TessIndexList;
//2.
List <TessVertex2d> tempVertexList = tessTool.TempVertexList;
//3.
vertexCount = indexList.Count;
//-----------------------------
int orgVertexCount = vertex2dCoords.Length / 2;
float[] vtx = new float[vertexCount * 2];//***
int n = 0;
for (int p = 0; p < vertexCount; ++p)
{
ushort index = indexList[p];
if (index >= orgVertexCount)
{
//extra coord (newly created)
TessVertex2d extraVertex = tempVertexList[index - orgVertexCount];
vtx[n] = (float)extraVertex.x;
vtx[n + 1] = (float)extraVertex.y;
}
else
{
//original corrd
vtx[n] = (float)vertex2dCoords[index * 2];
vtx[n + 1] = (float)vertex2dCoords[(index * 2) + 1];
}
n += 2;
}
//triangle list
return(vtx);
}
/// <summary>
/// tess and read result as triangle list index array (for GLES draw element)
/// </summary>
/// <param name="tessTool"></param>
/// <param name="vertex2dCoords"></param>
/// <param name="contourEndPoints"></param>
/// <param name="outputCoords"></param>
/// <param name="vertexCount"></param>
/// <returns></returns>
public static ushort[] TessAsTriIndexArray(this TessTool tessTool,
float[] vertex2dCoords,
int[] contourEndPoints,
out float[] outputCoords,
out int vertexCount)
{
if (!tessTool.TessPolygon(vertex2dCoords, contourEndPoints))
{
vertexCount = 0;
outputCoords = null;
return(null); //* early exit
}
//results
//1.
List <ushort> indexList = tessTool.TessIndexList;
//2.
List <TessVertex2d> tempVertexList = tessTool.TempVertexList;
//3.
vertexCount = indexList.Count;
//-----------------------------
//create a new array and append with original and new tempVertex list
int tempVertListCount = tempVertexList.Count;
outputCoords = new float[vertex2dCoords.Length + tempVertListCount * 2];
//1. copy original array
Array.Copy(vertex2dCoords, outputCoords, vertex2dCoords.Length);
//2. append with newly create vertex (from tempVertList)
int endAt = vertex2dCoords.Length + tempVertListCount;
int p = 0;
int q = vertex2dCoords.Length; //start adding at
for (int i = vertex2dCoords.Length; i < endAt; ++i)
{
TessVertex2d v = tempVertexList[p];
outputCoords[q] = (float)v.x;
outputCoords[q + 1] = (float)v.y;
p++;
q += 2;
}
return(indexList.ToArray());
}
