/// <summary>
/// ビットマップにベクトル図を描画します。
/// </summary>
/// <param name="bmp">描画先の System.Drawing.Bitmap</param>
/// <param name="data">元となる 2 次元配列データ</param>
/// <exception cref="Visualization.VectorDataNotFoundException">ベクトルデータがないときに投げられます。</exception>
public override void DrawTo( Canvas canvas, IDataSheet data )
{
Bitmap bmp = canvas.Bitmap;
if( !this.Setting.Show )
{
return;
}
if( !data.HasVectorData )
{
throw new VectorDataNotFoundException( "ベクトルデータがありません" );
}
if( !this.Setting.IsLengthFixed )
{
this.Setting.ReferredLength = data.MaxVector;
}
Graphics g = Graphics.FromImage( bmp );
Pen p = new Pen( Setting.LineColor );
Brush b = new SolidBrush( Setting.InnerColor );
ArrowDrawer d = new ArrowDrawer( g, this.Setting, data.MaxVector, data.MinVector );
int start = (this.Setting.Interval > 1) ? this.Setting.Offset : 0;
int step = this.Setting.Interval;
HashSet<int> iSet = new HashSet<int>();
HashSet<int> jSet = new HashSet<int>();
if( this.Setting.FixedBound )
{
iSet.Add( 0 );
jSet.Add( 0 );
}
for( int i=start; i<data.Columns; i += step )
{
iSet.Add( i );
}
for( int j=start; j<data.Rows; j += step )
{
jSet.Add( j );
}
if( this.Setting.FixedBound )
{
iSet.Add( data.Columns-1 );
jSet.Add( data.Rows-1 );
}
foreach( var i in iSet )
{
foreach( var j in jSet )
{
Point pt = canvas.AsBitmapCoord( data.GetX( i ), data.GetY( j ) );
double u = data.GetU( i, j );
double v = data.GetV( i, j );
double len = Math.Sqrt( u*u + v*v );
d.DrawArrow( pt, u, v );
}
}
}
public override void DrawTo( Canvas canvas, IDataSheet data )
{
if( !Setting.Show )
{
return;
}
Graphics g = Graphics.FromImage( canvas.Bitmap );
Pen p = new Pen( Color.Black );
for( int i=0; i<data.Columns; i++ )
{
for( int j=0; j<data.Rows; j++ )
{
Point pt = canvas.AsBitmapCoord( data.GetX( i ), data.GetY( j ) );
g.DrawRectangle( p, pt.X - 1, pt.Y -1, 2, 2 );
}
}
}
public abstract void DrawTo( Canvas canvas, IDataSheet data );
public override void DrawTo( Canvas canvas, IDataSheet data )
{
Bitmap bmp = canvas.Bitmap;
if( !this.Setting.Show )
{
return;
}
if( this.Setting.AutoScaleColor )
{
this.Setting.MaxValue = data.MaxZ;
this.Setting.MinValue = data.MinZ;
}
this.Setting.PropertyChanged = false;
double max = this.Setting.MaxValue;
double min = this.Setting.MinValue;
BitmapData bd = canvas.Bitmap.LockBits( new Rectangle( 0, 0, canvas.Bitmap.Width, canvas.Bitmap.Height ), ImageLockMode.WriteOnly, canvas.Bitmap.PixelFormat );
try
{
IntPtr scan0 = bd.Scan0;
byte[] bytes = new byte[canvas.Bitmap.Width*canvas.Bitmap.Height*4];
for( int i=0; i<bytes.Length; i+=4 ) // 白で初期化
{
bytes[i+0] = 255; // as B
bytes[i+1] = 255; // as G
bytes[i+2] = 255; // as R
bytes[i+3] = 255; // as A
}
int width = canvas.DrawingWidth; // コンターの幅
int height = canvas.DrawingHeight; // コンターの高さ
double xBtoDRate = 1.0 / (width - 1); // bmp 座標 → データ座標変換用
double yBtoDRate = 1.0 / (height - 1);
double newValue = 0; // バイリニア補間されたデータ
int index = 0; // バイト配列アクセス用
int hue = 0; // 色相
int dataYIndex = 0;
for( int j=0; j<height; j++ )
{
index = 4*(((height+canvas.Setting.Margin.Top)-1-j)*bmp.Width + canvas.Setting.Margin.Left);
double y = yBtoDRate*j; // j のピクセル位置をデータ座標で表す
while( !(data.GetY( dataYIndex ) <= y && y <= data.GetY( dataYIndex+1 )) )
{
dataYIndex++;
}
double y0 = data.GetY( dataYIndex );
double y1 = data.GetY( dataYIndex+1 );
int dataXIndex = 0;
for( int i=0; i<width; i++ )
{
// bilinear interporation
double x = xBtoDRate*i;
while( !(data.GetX( dataXIndex ) <= x && x <= data.GetX( dataXIndex+1 )) )
{
dataXIndex++;
}
double x0 = data.GetX( dataXIndex );
double x1 = data.GetX( dataXIndex+1 );
double vx0y0 = data.GetZ( dataXIndex, dataYIndex );
double vx0y1 = data.GetZ( dataXIndex, dataYIndex+1 );
double vx1y0 = data.GetZ( dataXIndex+1, dataYIndex );
double vx1y1 = data.GetZ( dataXIndex+1, dataYIndex+1 );
newValue = bilinearInterpolation( x0, x, x1, y0, y, y1, vx0y0, vx0y1, vx1y0, vx1y1 );
hue = (int)((newValue - min) / (max - min) * 359.0);
if( hue >= 360 ) hue = 359;
if( hue < 0 ) hue = 0;
bytes[index+0] = ColorBar.FromHue( hue ).B;
bytes[index+1] = ColorBar.FromHue( hue ).G;
bytes[index+2] = ColorBar.FromHue( hue ).R;
bytes[index+3] = 255; // as A
index += 4;
}
}
Marshal.Copy( bytes, 0, scan0, bytes.Length );
}
finally
{
bmp.UnlockBits( bd );
}
}
public override void DrawTo( Canvas canvas, IDataSheet data )
{
Bitmap bmp = canvas.Bitmap;
if( !this.Setting.Show )
{
return;
}
if( !this.Setting.IsLengthFixed )
{
double absMax = (Math.Abs( data.MaxZ ) > Math.Abs( data.MinZ )) ? Math.Abs( data.MaxZ )
: Math.Abs( data.MinZ );
if( absMax == 0 ) absMax = 1;
this.Setting.ReferredLength = absMax;
}
Graphics g = Graphics.FromImage( bmp );
SolidBrush plotBlush = new SolidBrush( Setting.PlotColor );
Pen plotPen = new Pen( Setting.PlotFrameColor );
Pen linePen = new Pen( Setting.LineColor, Setting.LineWidth );
Pen axisPen = new Pen( Setting.AxisColor, Setting.AxisWidth );
Point lefttop = canvas.AsBitmapCoord( 0, 1 );
Point rightbottom = canvas.AsBitmapCoord( 1, 0 );
g.DrawRectangle( axisPen, lefttop.X, lefttop.Y, canvas.DrawingWidth, canvas.DrawingHeight );
if( Setting.ReferenceI >= data.Columns ) Setting.ReferenceI = data.Columns - 1;
if( Setting.ReferenceJ >= data.Rows ) Setting.ReferenceJ = data.Rows - 1;
if( this.Setting.Horizontal )
{
double refY = data.GetY( this.Setting.ReferenceJ );
g.DrawLine( axisPen, canvas.AsBitmapCoord( 0, refY ), canvas.AsBitmapCoord( 1, refY ) );
List<Point> pt = new List<Point>();
pt.Add( canvas.AsBitmapCoord( 0, refY ) );
Func<int, int, double> value = (Setting.VectorMode) ? new Func<int, int, double>( data.GetV )
: new Func<int, int, double>( data.GetZ );
for( int i=0; i<data.Columns; i++ )
{
int h = (int)(value( i, Setting.ReferenceJ )/this.Setting.ReferredLength*Setting.Scale + 0.5);
Point gridPt = canvas.AsBitmapCoord( data.GetX( i ), refY );
pt.Add( new Point( gridPt.X, gridPt.Y-h ) );
}
pt.Add( canvas.AsBitmapCoord( 1, refY ) );
g.DrawLines( linePen, pt.ToArray() );
int s = Setting.PlotSize;
for( int i=1; i<pt.Count-1; i++ )
{
g.FillEllipse( plotBlush, pt[i].X - s/2, pt[i].Y - s/2, s, s );
g.DrawEllipse( plotPen, pt[i].X - s/2, pt[i].Y - s/2, s, s );
}
}
if( this.Setting.Vertical )
{
double refX = data.GetX( this.Setting.ReferenceI );
g.DrawLine( axisPen, canvas.AsBitmapCoord( refX, 0 ), canvas.AsBitmapCoord( refX, 1 ) );
List<Point> pt = new List<Point>();
pt.Add( canvas.AsBitmapCoord( refX, 0 ) );
Func<int, int, double> value = (Setting.VectorMode) ? new Func<int, int, double>( data.GetU )
: new Func<int, int, double>( data.GetZ );
for( int j=0; j<data.Rows; j++ )
{
int h = (int)(value( Setting.ReferenceI, j )/this.Setting.ReferredLength*Setting.Scale + 0.5);
Point gridPt = canvas.AsBitmapCoord( refX, data.GetY( j ) );
pt.Add( new Point( gridPt.X+h, gridPt.Y ) );
}
pt.Add( canvas.AsBitmapCoord( refX, 1 ) );
g.DrawLines( linePen, pt.ToArray() );
int s = Setting.PlotSize;
for( int i=1; i<pt.Count-1; i++ )
{
g.FillEllipse( plotBlush, pt[i].X - s/2, pt[i].Y - s/2, s, s );
g.DrawEllipse( plotPen, pt[i].X - s/2, pt[i].Y - s/2, s, s );
}
}
}
public Bitmap CreateBmp( int width, int height )
{
this.canvas = new Canvas( width, height, this.data.AspectRatio );
foreach( var field in fields )
{
field.DrawTo( this.canvas, this.data );
}
return this.canvas.Bitmap;
}
