public void Tesselate_WithSingleTriangle_ProducesSameTriangle()
{
string data = "0,0,0\n0,1,0\n1,1,0";
var indices = new List <int>();
var expectedIndices = new int[] { 0, 1, 2 };
using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(data)))
{
var pset = DataLoader.LoadDat(stream);
var tess = new Tess();
PolyConvert.ToTess(pset, tess);
tess.Tessellate(WindingRule.EvenOdd, ElementType.Polygons, 3);
indices.Clear();
for (int i = 0; i < tess.ElementCount; i++)
{
for (int j = 0; j < 3; j++)
{
int index = tess.Elements[i * 3 + j];
indices.Add(index);
}
}
Assert.AreEqual(expectedIndices, indices.ToArray());
}
}
// From https://github.com/speps/LibTessDotNet/issues/1
public void Tesselate_WithNoEmptyPolygonsTrue_RemovesEmptyPolygons()
{
string data = "2,0,4\n2,0,2\n4,0,2\n4,0,0\n0,0,0\n0,0,4";
var indices = new List <int>();
var expectedIndices = new int[] { 0, 1, 2, 2, 3, 4, 3, 1, 5 };
using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(data)))
{
var pset = DataLoader.LoadDat(stream);
var tess = new Tess();
PolyConvert.ToTess(pset, tess);
tess.NoEmptyPolygons = true;
tess.Tessellate(WindingRule.EvenOdd, ElementType.Polygons, 3);
indices.Clear();
for (int i = 0; i < tess.ElementCount; i++)
{
for (int j = 0; j < 3; j++)
{
int index = tess.Elements[i * 3 + j];
indices.Add(index);
}
}
Assert.AreEqual(expectedIndices, indices.ToArray());
}
}
// From https://github.com/memononen/libtess2/issues/14
public void Tesselate_WithThinQuad_DoesNotCrash()
{
string data = "9.5,7.5,-0.5\n9.5,2,-0.5\n9.5,2,-0.4999999701976776123\n9.5,7.5,-0.4999999701976776123";
using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(data)))
{
var pset = DataLoader.LoadDat(stream);
var tess = new Tess();
PolyConvert.ToTess(pset, tess);
tess.Tessellate(WindingRule.EvenOdd, ElementType.Polygons, 3);
}
}
// From https://github.com/speps/LibTessDotNet/issues/1
public void Tesselate_WithIssue1Quad_ReturnsSameResultAsLibtess2()
{
string data = "50,50\n300,50\n300,200\n50,200";
var indices = new List <int>();
var expectedIndices = new int[] { 0, 1, 2, 1, 0, 3 };
using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(data)))
{
var pset = DataLoader.LoadDat(stream);
var tess = new Tess();
PolyConvert.ToTess(pset, tess);
tess.Tessellate(WindingRule.EvenOdd, ElementType.Polygons, 3);
indices.Clear();
for (int i = 0; i < tess.ElementCount; i++)
{
for (int j = 0; j < 3; j++)
{
int index = tess.Elements[i * 3 + j];
indices.Add(index);
}
}
Assert.AreEqual(expectedIndices, indices.ToArray());
}
}
public MainForm()
{
InitializeComponent();
_canvas = new Canvas();
_canvas.Dock = DockStyle.Fill;
panel.Controls.Add(_canvas);
_assets = _data.AssetNames;
Array.Sort(_assets);
foreach (var asset in _assets)
{
toolStripAssets.Items.Add(asset);
}
toolStripAssets.SelectedIndexChanged += delegate(object sender, EventArgs e) { RefreshAsset(toolStripAssets.SelectedIndex); };
_windingRules = Enum.GetNames(typeof(WindingRule));
foreach (var windingRule in _windingRules)
{
toolStripWinding.Items.Add(windingRule);
}
toolStripWinding.SelectedIndexChanged += delegate(object sender, EventArgs e) {
_windingRule = (WindingRule)toolStripWinding.SelectedIndex;
if (toolStripAssets.SelectedIndex >= 0)
{
RefreshAsset(toolStripAssets.SelectedIndex);
}
};
toolStripPolySize.KeyDown += delegate(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
PolySizeEvent();
}
};
toolStripPolySize.Leave += delegate(object sender, EventArgs e)
{
PolySizeEvent();
};
toolStripButtonShowInput.CheckedChanged += delegate(object sender, EventArgs e)
{
_canvas.ShowInput = toolStripButtonShowInput.Checked;
toolStripButtonShowWinding.Enabled = _canvas.ShowInput;
RefreshAsset(toolStripAssets.SelectedIndex);
};
toolStripButtonShowWinding.CheckedChanged += delegate(object sender, EventArgs e)
{
_canvas.ShowWinding = toolStripButtonShowWinding.Checked;
RefreshAsset(toolStripAssets.SelectedIndex);
};
toolStripButtonNoEmpty.CheckedChanged += delegate(object sender, EventArgs e)
{
_tess.NoEmptyPolygons = toolStripButtonNoEmpty.Checked;
RefreshAsset(toolStripAssets.SelectedIndex);
};
toolStripButtonBench.Click += delegate(object sender, EventArgs e)
{
new BenchForm().ShowDialog(this);
};
toolStripButtonOpen.Click += delegate(object sender, EventArgs e)
{
var dialog = new OpenFileDialog();
dialog.Filter = "Test Files (*.dat)|*.dat|All Files (*.*)|*.*";
dialog.FilterIndex = 1;
dialog.RestoreDirectory = true;
if (dialog.ShowDialog() == DialogResult.OK)
{
var polygons = DataLoader.LoadDat(dialog.OpenFile());
RefreshAsset(polygons);
toolStripAssets.SelectedIndex = -1;
}
};
SetAsset("redbook-winding");
SetShowInput(true);
SetShowWinding(false);
SetPolySize(3);
SetWindingRule(WindingRule.EvenOdd);
}
public MainForm()
{
InitializeComponent();
_canvas = new Canvas();
_canvas.Dock = DockStyle.Fill;
panel.Controls.Add(_canvas);
foreach (var asset in _data.Assets)
{
toolStripAssets.Items.Add(asset);
}
toolStripAssets.SelectedIndexChanged += delegate(object sender, EventArgs e) {
if (toolStripAssets.SelectedIndex >= 0)
{
var asset = toolStripAssets.SelectedItem as DataLoader.Asset;
_polys = asset.Polygons;
RefreshCanvas();
}
};
_windingRules = Enum.GetNames(typeof(WindingRule));
foreach (var windingRule in _windingRules)
{
toolStripWinding.Items.Add(windingRule);
}
toolStripWinding.SelectedIndexChanged += delegate(object sender, EventArgs e) {
_windingRule = (WindingRule)toolStripWinding.SelectedIndex;
RefreshCanvas();
};
toolStripPolySize.KeyDown += delegate(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
PolySizeEvent();
}
};
toolStripPolySize.Leave += delegate(object sender, EventArgs e)
{
PolySizeEvent();
};
toolStripButtonShowInput.CheckedChanged += delegate(object sender, EventArgs e)
{
_canvas.ShowInput = toolStripButtonShowInput.Checked;
toolStripButtonShowWinding.Enabled = _canvas.ShowInput;
RefreshCanvas();
};
toolStripButtonShowWinding.CheckedChanged += delegate(object sender, EventArgs e)
{
_canvas.ShowWinding = toolStripButtonShowWinding.Checked;
RefreshCanvas();
};
toolStripButtonNoEmpty.CheckedChanged += delegate(object sender, EventArgs e)
{
_tess.NoEmptyPolygons = toolStripButtonNoEmpty.Checked;
RefreshCanvas();
};
toolStripButtonBench.Click += delegate(object sender, EventArgs e)
{
new BenchForm().ShowDialog(this);
};
toolStripButtonFile.Click += delegate(object sender, EventArgs e)
{
var dialog = new OpenFileDialog();
dialog.Filter = "Test Files (*.dat)|*.dat|All Files (*.*)|*.*";
dialog.FilterIndex = 1;
dialog.RestoreDirectory = true;
if (dialog.ShowDialog() == DialogResult.OK)
{
var polygons = DataLoader.LoadDat(dialog.OpenFile());
_polys = polygons;
RefreshCanvas();
toolStripAssets.SelectedIndex = -1;
}
};
toolStripButtonFolder.Click += delegate(object sender, EventArgs e)
{
var dialog = new FolderBrowserDialog();
if (dialog.ShowDialog() == DialogResult.OK)
{
var files = Directory.GetFiles(dialog.SelectedPath, "*.dat");
if (files.Length > 0)
{
toolStripAssets.Items.Clear();
_polys = null;
foreach (var file in files)
{
using (var stream = new FileStream(file, FileMode.Open))
{
var polygons = DataLoader.LoadDat(stream);
if (_polys == null)
{
_polys = polygons;
}
toolStripAssets.Items.Add(new DataLoader.Asset()
{
Name = Path.GetFileName(file), Polygons = polygons
});
}
}
toolStripAssets.SelectedIndex = 0;
RefreshCanvas();
}
}
};
SetAsset("redbook-winding");
SetShowInput(true);
SetShowWinding(false);
SetPolySize(3);
SetWindingRule(WindingRule.EvenOdd);
}