/// <summary>Create a point cloud plot</summary>
private ChartGfxPiece CreatePointPlot(RangeI idx_range)
{
var n = idx_range.Sizei;
// Resize the geometry buffers
m_vbuf.Resize(n);
m_ibuf.Resize(n);
m_nbuf.Resize(1);
// Create the vertex/index data
var col = Options.Colour;
var x_range = RangeF.Invalid;
for (int i = 0, iend = n; i != iend; ++i)
{
var pt = m_data[i + idx_range.Begi];
m_vbuf[i] = new View3d.Vertex(new v4((float)pt.xf, (float)pt.yf, 0f, 1f), col);
m_ibuf[i] = (ushort)i;
x_range.Grow(pt.xf);
}
// Create a nugget for the points using the sprite shader
{
var mat = View3d.Material.New();
mat.m_diff_tex = View3d.Texture.FromStock((View3d.EStockTexture)Options.PointStyle)?.Handle ?? IntPtr.Zero;
mat.Use(View3d.ERenderStep.ForwardRender, View3d.EShaderGS.PointSpritesGS, $"*PointSize {{{Options.PointSize} {Options.PointSize}}} *Depth {{{false}}}");
m_nbuf[0] = new View3d.Nugget(View3d.ETopo.PointList, View3d.EGeom.Vert | View3d.EGeom.Colr | View3d.EGeom.Tex0, mat: mat);
}
// Create the graphics
var gfx = new View3d.Object($"{Name}-[{idx_range.Beg},{idx_range.End})", 0xFFFFFFFF, m_vbuf.Count, m_ibuf.Count, m_nbuf.Count, m_vbuf.ToArray(), m_ibuf.ToArray(), m_nbuf.ToArray(), Id);
return(new ChartGfxPiece(gfx, x_range));
}
/// <summary>Create a step line plot</summary>
private ChartGfxPiece CreateStepLinePlot(RangeI idx_range)
{
var n = idx_range.Sizei;
// Resize the geometry buffers
m_vbuf.Resize(2 * n);
m_ibuf.Resize(2 * n + (Options.PointsOnLinePlot ? n : 0));
m_nbuf.Resize(1 + (Options.PointsOnLinePlot ? 1 : 0));
// Create the vertex/index data
int vert = 0, indx = 0;
var col = Options.Colour;
var x_range = RangeF.Invalid;
for (int i = 0, iend = Math.Min(n + 1, m_data.Count - idx_range.Begi); i != iend; ++i)
{
// Get the point and the next point
var j = i + idx_range.Begi;
var pt = m_data[j];
var pt_r = j + 1 != m_data.Count ? m_data[j + 1] : pt;
var v = vert;
m_vbuf[vert++] = new View3d.Vertex(new v4((float)pt.xf, (float)pt.yf, 0f, 1f), col);
m_vbuf[vert++] = new View3d.Vertex(new v4((float)pt_r.xf, (float)pt.yf, 0f, 1f), col);
m_ibuf[indx++] = (ushort)(v + 0);
m_ibuf[indx++] = (ushort)(v + 1);
x_range.Grow(pt.xf);
}
// Create a nugget for the list strip using the thick line shader
{
var mat = View3d.Material.New();
mat.Use(View3d.ERenderStep.ForwardRender, View3d.EShaderGS.ThickLineListGS, $"*LineWidth {{{Options.LineWidth}}}");
m_nbuf[0] = new View3d.Nugget(View3d.ETopo.LineStrip, View3d.EGeom.Vert | View3d.EGeom.Colr, 0, (uint)vert, 0, (uint)indx, View3d.ENuggetFlag.None, false, mat);
}
// Create a nugget for the points (if visible)
if (Options.PointsOnLinePlot)
{
// Add indices for the points
var i0 = indx;
for (int i = 0, iend = n; i != iend; ++i)
{
m_ibuf[indx++] = (ushort)(i * 2);
}
var mat = View3d.Material.New();
mat.m_diff_tex = View3d.Texture.FromStock((View3d.EStockTexture)Options.PointStyle)?.Handle ?? IntPtr.Zero;
mat.Use(View3d.ERenderStep.ForwardRender, View3d.EShaderGS.PointSpritesGS, $"*PointSize {{{Options.PointSize} {Options.PointSize}}} *Depth {{{false}}}");
m_nbuf[1] = new View3d.Nugget(View3d.ETopo.PointList, View3d.EGeom.Vert | View3d.EGeom.Colr | View3d.EGeom.Tex0, 0, (uint)vert, (uint)i0, (uint)indx, View3d.ENuggetFlag.None, false, mat);
}
// Create the graphics
var gfx = new View3d.Object($"{Name}-[{idx_range.Beg},{idx_range.End})", 0xFFFFFFFF, m_vbuf.Count, m_ibuf.Count, m_nbuf.Count, m_vbuf.ToArray(), m_ibuf.ToArray(), m_nbuf.ToArray(), Id);
return(new ChartGfxPiece(gfx, x_range));
}
/// <summary>Create a line plot</summary>
private ChartGfxPiece CreateLinePlot(RangeI idx_range)
{
var n = idx_range.Sizei;
if (n == 0)
{
throw new ArgumentException($"{nameof(ChartControl)}.{nameof(CreateLinePlot)} Index range must not be empty");
}
// Resize the geometry buffers
m_vbuf.Resize(n);
m_ibuf.Resize(n);
m_nbuf.Resize(1 + (Options.PointsOnLinePlot ? 1 : 0));
// Create the vertex/index data
int vert = 0, indx = 0;
var col = Options.Colour;
var x_range = RangeF.Invalid;
for (int i = 0, iend = Math.Min(n, m_data.Count - idx_range.Begi); i != iend; ++i)
{
var j = i + idx_range.Begi;
var pt = m_data[j];
var v = vert;
m_vbuf[vert++] = new View3d.Vertex(new v4((float)pt.xf, (float)pt.yf, 0f, 1f), col);
m_ibuf[indx++] = (ushort)(v);
x_range.Grow(pt.xf);
}
// Create a nugget for the list strip using the thick line shader
{
var mat = View3d.Material.New();
mat.Use(View3d.ERenderStep.ForwardRender, View3d.EShaderGS.ThickLineListGS, $"*LineWidth {{{Options.LineWidth}}}");
m_nbuf[0] = new View3d.Nugget(View3d.ETopo.LineStrip, View3d.EGeom.Vert | View3d.EGeom.Colr, mat: mat);
}
// Create a nugget for the points (if visible)
if (Options.PointsOnLinePlot)
{
var mat = View3d.Material.New();
mat.m_diff_tex = View3d.Texture.FromStock((View3d.EStockTexture)Options.PointStyle)?.Handle ?? IntPtr.Zero;
mat.Use(View3d.ERenderStep.ForwardRender, View3d.EShaderGS.PointSpritesGS, $"*PointSize {{{Options.PointSize} {Options.PointSize}}} *Depth {{{false}}}");
m_nbuf[1] = new View3d.Nugget(View3d.ETopo.PointList, View3d.EGeom.Vert | View3d.EGeom.Colr | View3d.EGeom.Tex0, range_overlaps: true, mat: mat);
}
// Create the graphics
var gfx = new View3d.Object($"{Name}-[{idx_range.Beg},{idx_range.End})", 0xFFFFFFFF, m_vbuf.Count, m_ibuf.Count, m_nbuf.Count, m_vbuf.ToArray(), m_ibuf.ToArray(), m_nbuf.ToArray(), Id);
return(new ChartGfxPiece(gfx, x_range));
}
/// <summary>Callback for creating the "net" object</summary>
private void CreateOnlyCB(IntPtr ctx, int vcount, int icount, int ncount, View3d.Vertex[] verts, ushort[] indices, View3d.Nugget[] nuggets, out int new_vcount, out int new_icount, out int new_ncount)
{
new_vcount = 0;
new_icount = 0;
new_ncount = 0;
for (int i = 0; i != 10; ++i)
{
verts[new_vcount++] = new View3d.Vertex(new v4(i, 0, 0, 1f));
verts[new_vcount++] = new View3d.Vertex(new v4(0, 0, 9 - i, 1f));
indices[new_icount++] = (ushort)(new_vcount - 2);
indices[new_icount++] = (ushort)(new_vcount - 1);
}
nuggets[new_ncount++] = new View3d.Nugget(View3d.ETopo.LineList, View3d.EGeom.Vert);
}
protected override void UpdateGfxCore()
{
var snr_colour = Settings.Colour.ToArgbU();
var width = Settings.GraphicsWidth * Chart.XAxis.Span;
var attr = Settings.Attribute;
var power = Settings.Power;
var count = Levels.Count;
if (count <= 1)
{
Gfx = null;
return;
}
// Create graphics for the support and resistance data
m_vbuf.Resize(count * 2);
m_ibuf.Resize(count * 2);
m_nbuf.Resize(1);
var values =
attr == EAttribute.MedianCount ? Levels.Select(x => x.Median).Normalise() :
attr == EAttribute.TradeVolume ? Levels.Select(x => x.Volume).Normalise() :
attr == EAttribute.TimeAtLevel ? Levels.Select(x => x.Time).Normalise() :
null;
int l = 0, v = 0, i = 0;
foreach (var value in values)
{
var x = (float)(Math.Pow(value, power) * width);
var y = (float)(Levels[l].Price);
++l;
m_ibuf[i++] = (ushort)v;
m_vbuf[v++] = new View3d.Vertex(new v4(-x, y, 0, 1));
m_ibuf[i++] = (ushort)v;
m_vbuf[v++] = new View3d.Vertex(new v4(0, y, 0, 1));
}
m_nbuf[0] = new View3d.Nugget(View3d.EPrim.TriStrip, View3d.EGeom.Vert, 0, (uint)v, 0, (uint)i, !Bit.AllSet(snr_colour, 0xFF000000));
// Create the graphics
Gfx = new View3d.Object(Name, snr_colour, m_vbuf.Count, m_ibuf.Count, m_nbuf.Count, m_vbuf.ToArray(), m_ibuf.ToArray(), m_nbuf.ToArray());
base.UpdateGfxCore();
}
protected override void UpdateGfxCore()
{
var line_colour = (Selected ? Settings.Colour.Lerp(Color.Gray, 0.2f) : Settings.Colour).ToArgbU();
var region_colour = (Selected ? Settings.RegionColour.Lerp(Color.Gray, 0.2f) : Settings.RegionColour).ToArgbU();
var width = (float)Chart.XAxis.Span;
// Create graphics for the horizontal line
m_vbuf.Resize(2 + (Level.WidthPips != 0 ? 4 : 0));
m_ibuf.Resize(2 + (Level.WidthPips != 0 ? 6 : 0));
m_nbuf.Resize(1 + (Level.WidthPips != 0 ? 1 : 0));
m_vbuf[0] = new View3d.Vertex(new v4(0, 0, 0, 1), line_colour);
m_vbuf[1] = new View3d.Vertex(new v4(width, 0, 0, 1), line_colour);
m_ibuf[0] = 0;
m_ibuf[1] = 1;
var mat = new View3d.Material(shader: View3d.EShader.ThickLineListGS, shader_data: new int[4] {
Settings.LineWidth, 0, 0, 0
});
m_nbuf[0] = new View3d.Nugget(View3d.EPrim.LineList, View3d.EGeom.Vert | View3d.EGeom.Colr, 0, 2, 0, 2, !Bit.AllSet(line_colour, 0xFF000000), mat);
if (Level.WidthPips != 0)
{
var hh = (float)(Instrument.PriceData.PipSize * Level.WidthPips / 2.0);
m_vbuf[2] = new View3d.Vertex(new v4(0, -hh, 0, 1), region_colour);
m_vbuf[3] = new View3d.Vertex(new v4(width, -hh, 0, 1), region_colour);
m_vbuf[4] = new View3d.Vertex(new v4(0, +hh, 0, 1), region_colour);
m_vbuf[5] = new View3d.Vertex(new v4(width, +hh, 0, 1), region_colour);
m_ibuf[2] = 2;
m_ibuf[3] = 3;
m_ibuf[4] = 5;
m_ibuf[5] = 5;
m_ibuf[6] = 4;
m_ibuf[7] = 2;
m_nbuf[1] = new View3d.Nugget(View3d.EPrim.TriList, View3d.EGeom.Vert | View3d.EGeom.Colr, 2, 6, 2, 8, !Bit.AllSet(region_colour, 0xFF000000));
}
// Create the graphics
Gfx = new View3d.Object(Name, 0xFFFFFFFF, m_vbuf.Count, m_ibuf.Count, m_nbuf.Count, m_vbuf.ToArray(), m_ibuf.ToArray(), m_nbuf.ToArray());
base.UpdateGfxCore();
}
protected override void UpdateGfxCore()
{
var line_colour = (Selected ? Settings.Colour.Lerp(Color.Gray, 0.5f) : Settings.Colour).ToArgbU();
var region_colour = (Selected ? Settings.RegionColour.Lerp(Color.Gray, 0.5f) : Settings.RegionColour).ToArgbU();
var region_height = Settings.RegionHeight;
var width = (float)Chart.XAxis.Span;
// Create graphics for the horizontal line
m_vbuf.Resize(2 + (region_height != 0 ? 4 : 0));
m_ibuf.Resize(2 + (region_height != 0 ? 6 : 0));
m_nbuf.Resize(1 + (region_height != 0 ? 1 : 0));
m_vbuf[0] = new View3d.Vertex(new v4(0, 0, 0, 1), line_colour);
m_vbuf[1] = new View3d.Vertex(new v4(width, 0, 0, 1), line_colour);
m_ibuf[0] = 0;
m_ibuf[1] = 1;
m_nbuf[0] = new View3d.Nugget(View3d.EPrim.LineList, View3d.EGeom.Vert | View3d.EGeom.Colr, 0, 2, 0, 2);
if (region_height != 0)
{
var half_height = (float)(Instrument.PriceData.PipSize * region_height / 2.0);
m_vbuf[2] = new View3d.Vertex(new v4(0, -half_height, 0, 1), region_colour);
m_vbuf[3] = new View3d.Vertex(new v4(width, -half_height, 0, 1), region_colour);
m_vbuf[4] = new View3d.Vertex(new v4(0, +half_height, 0, 1), region_colour);
m_vbuf[5] = new View3d.Vertex(new v4(width, +half_height, 0, 1), region_colour);
m_ibuf[2] = 2;
m_ibuf[3] = 3;
m_ibuf[4] = 5;
m_ibuf[5] = 5;
m_ibuf[6] = 4;
m_ibuf[7] = 2;
m_nbuf[1] = new View3d.Nugget(View3d.EPrim.TriList, View3d.EGeom.Vert | View3d.EGeom.Colr, 2, 6, 2, 8, !Bit.AllSet(region_colour, 0xFF000000));
}
// Create the graphics
Gfx = new View3d.Object(Name, 0xFFFFFFFF, m_vbuf.Count, m_ibuf.Count, m_nbuf.Count, m_vbuf.ToArray(), m_ibuf.ToArray(), m_nbuf.ToArray());
base.UpdateGfxCore();
}
public FormView3d()
{
InitializeComponent();
m_view3d = new View3dControl
{
Name = "m_view3d",
BorderStyle = BorderStyle.FixedSingle,
Dock = DockStyle.Fill,
};
Controls.Add(m_view3d);
m_demo_objs = m_view3d.Window.CreateDemoScene();
m_view3d.Camera.ResetView();
m_view3d.Camera.Lookat(new v4(10f, 10f, 5f, 1f), v4.Origin, v4.YAxis);
// Simple create object
m_obj0 = new View3d.Object("*Box test FFFFFFFF {1 2 3}", false, null);
m_obj0.O2P = m4x4.Transform(0.5f, -0.3f, 0.2f, new v4(-0.3f, 1.2f, 0.5f, 1f));
m_view3d.Window.AddObject(m_obj0);
m_obj0.ShowNormals = true;
m_view3d.Window.Diag.NormalsLength = 0.5f;
m_view3d.Window.Diag.NormalsColour = Colour32.Yellow;
// Create a texture and assign it to an object
m_tex0 = new View3d.Texture(100, 100, new View3d.TextureOptions {
GdiCompatible = true
});
using (var tex = new View3d.Texture.Lock(m_tex0, discard: true))
{
tex.Gfx.Clear(Color.DarkBlue);
tex.Gfx.FillEllipse(Brushes.RoyalBlue, 10, 10, 80, 80);
tex.Gfx.DrawString("Paul Rulz", SystemFonts.DefaultFont, Brushes.Black, new PointF(30, 40));
}
m_view3d.Window.RestoreRT();
m_obj0.SetTexture(m_tex0);
// Create object via callback
m_obj1 = new View3d.Object("net", 0xFF0000FF, 20, 20, 1, CreateOnlyCB, null);
m_view3d.Window.AddObject(m_obj1);
// Create an object with a texture from a rendered scene
m_obj2 = new View3d.Object("*Box Rt FFFFFFFF {0.7 0.9 0.4}", false, null);
m_obj2.O2P = m4x4.Transform(-0.5f, 0.4f, 0.6f, new v4(0.5f, -0.2f, -0.3f, 1f));
m_view3d.Window.AddObject(m_obj2);
// Create a texture and use it as a render target
m_tex2 = new View3d.Texture(200, 200, new View3d.TextureOptions
{
Format = View3d.EFormat.DXGI_FORMAT_R8G8B8A8_UNORM,
Mips = 1U,
Filter = View3d.EFilter.D3D11_FILTER_MIN_MAG_MIP_LINEAR,
AddrU = View3d.EAddrMode.D3D11_TEXTURE_ADDRESS_CLAMP,
AddrV = View3d.EAddrMode.D3D11_TEXTURE_ADDRESS_CLAMP,
BindFlags = View3d.EBindFlags.D3D11_BIND_SHADER_RESOURCE | View3d.EBindFlags.D3D11_BIND_RENDER_TARGET,
MiscFlags = View3d.EResMiscFlags.NONE,
ColourKey = 0,
HasAlpha = false,
GdiCompatible = false,
DbgName = "Test RT",
});
m_view3d.Paint += (s, a) =>
{
// Make sure 'm_obj' is not rendered (because it uses the texture we're rendering to)
m_view3d.Window.RemoveObject(m_obj2);
m_view3d.Window.SetRT(m_tex2, null, false);
m_view3d.Window.AddObject(m_obj2);
};
m_obj2.SetTexture(m_tex2);
// Create a gizmo for moving objects in the scene
// Position it at the origin of m_obj0 and scale by 2
m_giz = new View3d.Gizmo(View3d.Gizmo.EMode.Scale, m_obj0.O2P * m4x4.Scale(0.1f, v4.Origin));
m_giz.Attach(m_obj0);
m_giz.Moved += (s, a) =>
{
m_status.SetStatusMessage(msg: "Gizmo", display_time: TimeSpan.FromSeconds(2));
};
m_view3d.Window.AddGizmo(m_giz);
m_btn_translate.Click += (s, a) => m_giz.Mode = View3d.Gizmo.EMode.Translate;
m_btn_rotate.Click += (s, a) => m_giz.Mode = View3d.Gizmo.EMode.Rotate;
m_btn_scale.Click += (s, a) => m_giz.Mode = View3d.Gizmo.EMode.Scale;
// Create an object from buffers created in C#
{
var verts = new View3d.Vertex[]
{
new View3d.Vertex(new v4(1f, 1f, 0f, 1f), 0xFFFF0000),
new View3d.Vertex(new v4(2f, 0f, 0f, 1f), 0xFF00FF00),
new View3d.Vertex(new v4(3f, 1f, 0f, 1f), 0xFF0000FF),
};
var indcs = new ushort[]
{
0, 1, 2
};
var nuggets = new View3d.Nugget[]
{
new View3d.Nugget(View3d.ETopo.TriList, View3d.EGeom.Vert | View3d.EGeom.Colr)
};
m_obj3 = new View3d.Object("Obj3", 0xFFFFFFFF, 3, 3, 1, verts, indcs, nuggets, null);
m_view3d.Window.AddObject(m_obj3);
}
}
protected override void UpdateGfxCore()
{
// Generate the EMA line for the visible area of the chart
var ema_colour = Settings.ColourEMA.ToArgbU();
var bol_colour = Settings.ColourBollingerBands.ToArgbU();
// Get the visible X axis range, and convert it to positive indices
var first_idx = Instrument.FirstIdx;
var rng = Instrument.IndexRange((int)(Chart.XAxis.Min - 1), (int)(Chart.XAxis.Max + 1));
rng.Beg = Maths.Clamp(rng.Beg - first_idx, 0, m_ema.Count);
rng.End = Maths.Clamp(rng.End - first_idx, 0, m_ema.Count);
if (rng.Counti == 0)
{
Gfx = null;
return;
}
var count = rng.Counti;
m_vbuf.Resize(count);
m_ibuf.Resize((count - 1) * 2);
m_nbuf.Resize(1);
// EMA model
var v = 0; var i = 0;
foreach (var candle_index in rng)
{
var ema = m_ema[(int)candle_index];
m_vbuf[v++] = new View3d.Vertex(new v4(candle_index + first_idx, (float)ema.Mean, ChartUI.Z.Indicators, 1f), ema_colour);
}
for (var vi = 0; i != m_ibuf.Count; ++vi)
{
m_ibuf[i++] = (ushort)(vi);
m_ibuf[i++] = (ushort)(vi + 1);
}
var mat = new View3d.Material(shader: View3d.EShader.ThickLineListGS, shader_data: new[] { Settings.Width, 0, 0, 0 });
m_nbuf[0] = new View3d.Nugget(View3d.EPrim.LineList, View3d.EGeom.Vert | View3d.EGeom.Colr, 0, (uint)v, 0, (uint)i, false, mat);
// Add geometry for Bollinger bands
if (Settings.BollingerBands != 0)
{
m_vbuf.Resize(m_vbuf.Count + 2 * count);
m_ibuf.Resize(m_ibuf.Count + 2 * count);
m_nbuf.Resize(m_nbuf.Count + 2);
// Lower/Upper band
foreach (var candle_index in rng)
{
var ema = m_ema[(int)candle_index];
m_vbuf[v++] = new View3d.Vertex(new v4(candle_index + first_idx, (float)(ema.Mean - Settings.BollingerBands * ema.PopStdDev), ChartUI.Z.Indicators, 1f), bol_colour);
m_ibuf[i++] = (ushort)(v - 1);
}
m_nbuf[1] = new View3d.Nugget(View3d.EPrim.LineStrip, View3d.EGeom.Vert | View3d.EGeom.Colr, (uint)(v - count), (uint)v, (uint)(i - count), (uint)i);
foreach (var candle_index in rng)
{
var ema = m_ema[(int)candle_index];
m_vbuf[v++] = new View3d.Vertex(new v4(candle_index + first_idx, (float)(ema.Mean + Settings.BollingerBands * ema.PopStdDev), ChartUI.Z.Indicators, 1f), bol_colour);
m_ibuf[i++] = (ushort)(v - 1);
}
m_nbuf[2] = new View3d.Nugget(View3d.EPrim.LineStrip, View3d.EGeom.Vert | View3d.EGeom.Colr, (uint)(v - count), (uint)v, (uint)(i - count), (uint)i);
}
// Create the graphics
Gfx = new View3d.Object(Name, 0xFFFFFFFF, m_vbuf.Count, m_ibuf.Count, m_nbuf.Count, m_vbuf.ToArray(), m_ibuf.ToArray(), m_nbuf.ToArray());
base.UpdateGfxCore();
}
/// <summary>Create a bar graph</summary>
private ChartGfxPiece CreateBarPlot(RangeI idx_range)
{
var n = idx_range.Sizei;
// Resize the geometry buffers
m_vbuf.Resize(4 * n);
m_ibuf.Resize(6 * n);
m_nbuf.Resize(1);
// Create the vertex/index data
int vidx = 0, iidx = 0, nidx = 0;
var col = Options.Colour;
var lwidth = (0.0 - Options.BarHorizontalAlignment) * Options.BarWidth;
var rwidth = (1.0 - Options.BarHorizontalAlignment) * Options.BarWidth;
var x_range = RangeF.Invalid;
for (int i = 0; i != n; ++i)
{
// Get the points on either side of 'i'
var j = i + idx_range.Begi;
var pt_l = j != 0 ? m_data[j - 1] : null;
var pt = m_data[j];
var pt_r = j + 1 != m_data.Count ? m_data[j + 1] : null;
// Get the distance to the left and right of 'pt.x'
var l = pt_l != null ? lwidth * (pt_l.xf - pt.xf) : 0;
var r = pt_r != null ? rwidth * (pt_r.xf - pt.xf) : 0;
if (j == 0 && j + 1 != m_data.Count && pt_r != null)
{
l = -lwidth * (pt_r.xf - pt.xf);
}
if (j + 1 == m_data.Count && j != 0 && pt_l != null)
{
r = -rwidth * (pt_l.xf - pt.xf);
}
var v = vidx;
m_vbuf[vidx++] = new View3d.Vertex(new v4((float)(pt.xf + r), (float)(pt.yf >= 0f ? pt.yf : 0f), 0f, 1f), col);
m_vbuf[vidx++] = new View3d.Vertex(new v4((float)(pt.xf - l), (float)(pt.yf >= 0f ? pt.yf : 0f), 0f, 1f), col);
m_vbuf[vidx++] = new View3d.Vertex(new v4((float)(pt.xf - l), (float)(pt.yf >= 0f ? 0f : pt.yf), 0f, 1f), col);
m_vbuf[vidx++] = new View3d.Vertex(new v4((float)(pt.xf + r), (float)(pt.yf >= 0f ? 0f : pt.yf), 0f, 1f), col);
m_ibuf[iidx++] = (ushort)(v + 0);
m_ibuf[iidx++] = (ushort)(v + 1);
m_ibuf[iidx++] = (ushort)(v + 2);
m_ibuf[iidx++] = (ushort)(v + 2);
m_ibuf[iidx++] = (ushort)(v + 3);
m_ibuf[iidx++] = (ushort)(v + 0);
x_range.Grow(pt.xf);
}
// Create a nugget for the tri list
uint v0 = 0, v1 = (uint)vidx;
uint i0 = 0, i1 = (uint)iidx;
var flags = col.A != 0xff ? View3d.ENuggetFlag.GeometryHasAlpha : View3d.ENuggetFlag.None;
m_nbuf[nidx++] = new View3d.Nugget(View3d.ETopo.TriList, View3d.EGeom.Vert | View3d.EGeom.Colr, v0, v1, i0, i1, flags);
// Add the bar 'tops'
if (Options.LinesOnBarPlot)
{
// Use line strips
m_vbuf.Resize(m_vbuf.Count + n * 2);
m_ibuf.Resize(m_ibuf.Count + n * 2);
m_nbuf.Resize(m_nbuf.Count + 1);
var line_colour = col.Darken(0.25f).Alpha(1f);
for (int i = 0; i != n; ++i)
{
var vert0 = m_vbuf[i * 4 + 0];
var vert1 = m_vbuf[i * 4 + 1];
var v = vidx;
m_vbuf[vidx++] = new View3d.Vertex(vert0.m_pos, line_colour);
m_vbuf[vidx++] = new View3d.Vertex(vert1.m_pos, line_colour);
m_ibuf[iidx++] = (ushort)(v + 0);
m_ibuf[iidx++] = (ushort)(v + 1);
}
// Create a nugget for the bar tops
v0 = v1; v1 += (uint)(n * 2);
i0 = i1; i1 += (uint)(n * 2);
m_nbuf[nidx++] = new View3d.Nugget(View3d.ETopo.LineList, View3d.EGeom.Vert | View3d.EGeom.Colr, v0, v1, i0, i1);
}
// Create the graphics
var gfx = new View3d.Object($"{Name}-[{idx_range.Beg},{idx_range.End})", 0xFFFFFFFF, m_vbuf.Count, m_ibuf.Count, m_nbuf.Count, m_vbuf.ToArray(), m_ibuf.ToArray(), m_nbuf.ToArray(), Id);
return(new ChartGfxPiece(gfx, x_range));
}