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00052 using System;
00053 using System.Drawing;
00054 using System.Drawing.Drawing2D;
00055
00056 namespace NPlot
00057 {
00058
00064 public abstract class AxesConstraint
00065 {
00066
00073 public class XPixelWorldLength : AxesConstraint
00074 {
00075 private double pWorldLength_ = 0.0f;
00076 private object holdFixedY_ = null;
00077
00084 public XPixelWorldLength( double p )
00085 {
00086 this.pWorldLength_ = p;
00087 }
00088
00098 public XPixelWorldLength( double p, PlotSurface2D.YAxisPosition holdFixedY )
00099 {
00100 this.pWorldLength_ = p;
00101 this.holdFixedY_ = holdFixedY;
00102 }
00103
00111 public override void ApplyConstraint(
00112 PhysicalAxis pXAxis1, PhysicalAxis pYAxis1,
00113 PhysicalAxis pXAxis2, PhysicalAxis pYAxis2 )
00114 {
00115 int desiredLength = (int)(pXAxis1.Axis.WorldLength / (double)this.pWorldLength_);
00116 int currentLength = pXAxis1.PhysicalLength;
00117 int delta = currentLength - desiredLength;
00118
00119 int changeLeft = delta / 2;
00120 int changeRight = delta / 2;
00121 if (this.holdFixedY_ != null)
00122 {
00123 if ( (PlotSurface2D.YAxisPosition)this.holdFixedY_ == PlotSurface2D.YAxisPosition.Left )
00124 {
00125 changeLeft = 0;
00126 changeRight = delta;
00127 }
00128 else
00129 {
00130 changeLeft = delta;
00131 changeRight = 0;
00132 }
00133 }
00134
00135 pXAxis1.PhysicalMin = new Point( pXAxis1.PhysicalMin.X+changeLeft, pXAxis1.PhysicalMin.Y );
00136 pXAxis1.PhysicalMax = new Point( pXAxis1.PhysicalMax.X-changeRight, pXAxis1.PhysicalMax.Y );
00137 pXAxis2.PhysicalMin = new Point( pXAxis2.PhysicalMin.X+changeLeft, pXAxis2.PhysicalMin.Y );
00138 pXAxis2.PhysicalMax = new Point( pXAxis2.PhysicalMax.X-changeRight, pXAxis2.PhysicalMax.Y );
00139
00140 pYAxis1.PhysicalMin = new Point( pYAxis1.PhysicalMin.X+changeLeft, pYAxis1.PhysicalMin.Y );
00141 pYAxis1.PhysicalMax = new Point( pYAxis1.PhysicalMax.X+changeLeft, pYAxis1.PhysicalMax.Y );
00142 pYAxis2.PhysicalMin = new Point( pYAxis2.PhysicalMin.X-changeRight, pYAxis2.PhysicalMin.Y );
00143 pYAxis2.PhysicalMax = new Point( pYAxis2.PhysicalMax.X-changeRight, pYAxis2.PhysicalMax.Y );
00144
00145 }
00146 }
00147
00148
00155 public class YPixelWorldLength : AxesConstraint
00156 {
00157 private double pWorldLength_ = 0.0;
00158 private object holdFixedX_ = null;
00159
00166 public YPixelWorldLength( double p )
00167 {
00168 this.pWorldLength_ = p;
00169 }
00170
00178 public YPixelWorldLength( double p, PlotSurface2D.XAxisPosition holdFixedX )
00179 {
00180 this.pWorldLength_ = p;
00181 this.holdFixedX_ = holdFixedX;
00182 }
00183
00184
00192 public override void ApplyConstraint(
00193 PhysicalAxis pXAxis1, PhysicalAxis pYAxis1,
00194 PhysicalAxis pXAxis2, PhysicalAxis pYAxis2 )
00195 {
00196
00197 int desiredLength = (int)(pYAxis1.Axis.WorldLength / this.pWorldLength_);
00198 int currentLength = pYAxis1.PhysicalLength;
00199 int delta = currentLength - desiredLength;
00200
00201 int changeBottom = -delta / 2;
00202 int changeTop = -delta / 2;
00203 if (this.holdFixedX_ != null)
00204 {
00205 if ( (PlotSurface2D.XAxisPosition)this.holdFixedX_ == PlotSurface2D.XAxisPosition.Bottom )
00206 {
00207 changeBottom = 0;
00208 changeTop = -delta;
00209 }
00210 else
00211 {
00212 changeBottom = -delta;
00213 changeTop = 0;
00214 }
00215 }
00216
00217 pYAxis1.PhysicalMin = new Point( pYAxis1.PhysicalMin.X, pYAxis1.PhysicalMin.Y+changeBottom );
00218 pYAxis1.PhysicalMax = new Point( pYAxis1.PhysicalMax.X, pYAxis1.PhysicalMax.Y-changeTop );
00219 pYAxis2.PhysicalMin = new Point( pYAxis2.PhysicalMin.X, pYAxis2.PhysicalMin.Y+changeBottom );
00220 pYAxis2.PhysicalMax = new Point( pYAxis2.PhysicalMax.X, pYAxis2.PhysicalMax.Y-changeTop );
00221
00222 pXAxis1.PhysicalMin = new Point( pXAxis1.PhysicalMin.X, pXAxis1.PhysicalMin.Y+changeBottom );
00223 pXAxis1.PhysicalMax = new Point( pXAxis1.PhysicalMax.X, pXAxis1.PhysicalMax.Y+changeBottom );
00224 pXAxis2.PhysicalMin = new Point( pXAxis2.PhysicalMin.X, pXAxis2.PhysicalMin.Y-changeTop );
00225 pXAxis2.PhysicalMax = new Point( pXAxis2.PhysicalMax.X, pXAxis2.PhysicalMax.Y-changeTop );
00226
00227 }
00228 }
00229
00230
00236 public class AxisPosition : AxesConstraint
00237 {
00238
00239 private object xAxisPosition_;
00240 private object yAxisPosition_;
00241 private int position_;
00242
00243
00250 public AxisPosition( PlotSurface2D.XAxisPosition axis, int yPosition )
00251 {
00252 position_ = yPosition;
00253 xAxisPosition_ = axis;
00254 }
00255
00256
00263 public AxisPosition( PlotSurface2D.YAxisPosition axis, int xPosition )
00264 {
00265 position_ = xPosition;
00266 yAxisPosition_ = axis;
00267 }
00268
00276 public override void ApplyConstraint(
00277 PhysicalAxis pXAxis1, PhysicalAxis pYAxis1,
00278 PhysicalAxis pXAxis2, PhysicalAxis pYAxis2 )
00279 {
00280
00281 if ( xAxisPosition_ != null )
00282 {
00283
00284 if ((PlotSurface2D.XAxisPosition)xAxisPosition_ == PlotSurface2D.XAxisPosition.Bottom)
00285 {
00286 pXAxis1.PhysicalMin = new Point( pXAxis1.PhysicalMin.X, position_ );
00287 pXAxis1.PhysicalMax = new Point( pXAxis1.PhysicalMax.X, position_ );
00288
00289 pYAxis1.PhysicalMin = new Point( pYAxis1.PhysicalMin.X, position_ );
00290 pYAxis2.PhysicalMin = new Point( pYAxis2.PhysicalMin.X, position_ );
00291 }
00292 else
00293 {
00294 pXAxis2.PhysicalMin = new Point( pXAxis2.PhysicalMin.X, position_ );
00295 pXAxis2.PhysicalMax = new Point( pXAxis2.PhysicalMax.X, position_ );
00296
00297 pYAxis1.PhysicalMax = new Point( pYAxis1.PhysicalMax.X, position_ );
00298 pYAxis2.PhysicalMax = new Point( pYAxis2.PhysicalMax.X, position_ );
00299 }
00300
00301 }
00302 else if (yAxisPosition_ != null )
00303 {
00304
00305 if ((PlotSurface2D.YAxisPosition)yAxisPosition_ == PlotSurface2D.YAxisPosition.Left)
00306 {
00307 pYAxis1.PhysicalMin = new Point( position_, pYAxis1.PhysicalMin.Y );
00308 pYAxis1.PhysicalMax = new Point( position_, pYAxis1.PhysicalMax.Y );
00309
00310 pXAxis1.PhysicalMin = new Point( position_, pXAxis1.PhysicalMin.Y );
00311 pXAxis2.PhysicalMin = new Point( position_, pXAxis2.PhysicalMin.Y );
00312 }
00313 else
00314 {
00315 pYAxis2.PhysicalMin = new Point( position_, pYAxis2.PhysicalMin.Y );
00316 pYAxis2.PhysicalMax = new Point( position_, pYAxis2.PhysicalMax.Y );
00317
00318 pXAxis1.PhysicalMax = new Point( position_, pXAxis1.PhysicalMax.Y );
00319 pXAxis2.PhysicalMax = new Point( position_, pXAxis2.PhysicalMax.Y );
00320 }
00321
00322 }
00323
00324 }
00325
00326 }
00327
00328
00342 public class AspectRatio : AxesConstraint
00343 {
00344 private double a_;
00345 private object holdFixedX_ = null;
00346 private object holdFixedY_ = null;
00347
00352 public AspectRatio( double a )
00353 {
00354 this.a_ = a;
00355 }
00356
00365 public AspectRatio( double a, PlotSurface2D.XAxisPosition holdFixedX )
00366 {
00367 this.a_ = a;
00368 this.holdFixedX_ = holdFixedX;
00369 }
00370
00379 public AspectRatio( double a, PlotSurface2D.YAxisPosition holdFixedY )
00380 {
00381 this.a_ = a;
00382 this.holdFixedY_ = holdFixedY;
00383 }
00384
00391 public AspectRatio(
00392 double a,
00393 PlotSurface2D.XAxisPosition holdFixedX,
00394 PlotSurface2D.YAxisPosition holdFixedY )
00395 {
00396 this.a_ = a;
00397 this.holdFixedX_ = holdFixedX;
00398 this.holdFixedY_ = holdFixedY;
00399 }
00400
00408 public override void ApplyConstraint(
00409 PhysicalAxis pXAxis1, PhysicalAxis pYAxis1,
00410 PhysicalAxis pXAxis2, PhysicalAxis pYAxis2 )
00411 {
00412 double xWorldRange = Math.Abs( pXAxis1.Axis.WorldMax - pXAxis1.Axis.WorldMin );
00413 double xPhysicalRange = Math.Abs( pXAxis1.PhysicalMax.X - pXAxis1.PhysicalMin.X );
00414 double xDirPixelSize = xWorldRange / xPhysicalRange;
00415
00416 double yWorldRange = Math.Abs( pYAxis1.Axis.WorldMax - pYAxis1.Axis.WorldMin );
00417 double yPhysicalRange = Math.Abs( pYAxis1.PhysicalMax.Y - pYAxis1.PhysicalMin.Y );
00418 double yDirPixelSize = yWorldRange / yPhysicalRange;
00419
00420 double currentAspectRatio = yDirPixelSize / xDirPixelSize;
00421
00422
00423
00424
00425 if ( this.a_ > currentAspectRatio )
00426 {
00427
00428
00429
00430 double toAdd = ( this.a_ - currentAspectRatio ) * xDirPixelSize;
00431 int newHeight =
00432 (int)( Math.Abs(pYAxis1.Axis.WorldMax - pYAxis1.Axis.WorldMin) / (yDirPixelSize + toAdd) );
00433 int changeInHeight = (int)yPhysicalRange - newHeight;
00434
00435 int changeBottom = changeInHeight/2;
00436 int changeTop = changeInHeight/2;
00437 if (this.holdFixedX_ != null)
00438 {
00439 if ( (PlotSurface2D.XAxisPosition)this.holdFixedX_ == PlotSurface2D.XAxisPosition.Bottom )
00440 {
00441 changeBottom = 0;
00442 changeTop = changeInHeight;
00443 }
00444 else
00445 {
00446 changeBottom = changeInHeight;
00447 changeTop = 0;
00448 }
00449 }
00450
00451 pYAxis1.PhysicalMin = new Point( pYAxis1.PhysicalMin.X, pYAxis1.PhysicalMin.Y-changeBottom );
00452 pYAxis1.PhysicalMax = new Point( pYAxis1.PhysicalMax.X, pYAxis1.PhysicalMax.Y+changeTop );
00453 pYAxis2.PhysicalMin = new Point( pYAxis2.PhysicalMin.X, pYAxis2.PhysicalMin.Y-changeBottom );
00454 pYAxis2.PhysicalMax = new Point( pYAxis2.PhysicalMax.X, pYAxis2.PhysicalMax.Y+changeTop );
00455
00456 pXAxis1.PhysicalMin = new Point( pXAxis1.PhysicalMin.X, pXAxis1.PhysicalMin.Y-changeBottom );
00457 pXAxis1.PhysicalMax = new Point( pXAxis1.PhysicalMax.X, pXAxis1.PhysicalMax.Y-changeBottom );
00458 pXAxis2.PhysicalMin = new Point( pXAxis2.PhysicalMin.X, pXAxis2.PhysicalMin.Y+changeTop );
00459 pXAxis2.PhysicalMax = new Point( pXAxis2.PhysicalMax.X, pXAxis2.PhysicalMax.Y+changeTop );
00460
00461 }
00462
00463 else
00464 {
00465
00466
00467
00468
00469 double toAdd = yDirPixelSize / this.a_ - xDirPixelSize;
00470 int newWidth =
00471 (int)( Math.Abs(pXAxis1.Axis.WorldMax - pXAxis1.Axis.WorldMin) / (xDirPixelSize + toAdd) );
00472 int changeInWidth = (int)xPhysicalRange - newWidth;
00473
00474 int changeLeft = changeInWidth / 2;
00475 int changeRight = changeInWidth / 2;
00476 if (this.holdFixedY_ != null)
00477 {
00478 if ( (PlotSurface2D.YAxisPosition)this.holdFixedY_ == PlotSurface2D.YAxisPosition.Left )
00479 {
00480 changeLeft = 0;
00481 changeRight = changeInWidth;
00482 }
00483 else
00484 {
00485 changeLeft = changeInWidth;
00486 changeRight = 0;
00487 }
00488 }
00489
00490 pXAxis1.PhysicalMin = new Point( pXAxis1.PhysicalMin.X+changeLeft, pXAxis1.PhysicalMin.Y );
00491 pXAxis1.PhysicalMax = new Point( pXAxis1.PhysicalMax.X-changeRight, pXAxis1.PhysicalMax.Y );
00492 pXAxis2.PhysicalMin = new Point( pXAxis2.PhysicalMin.X+changeLeft, pXAxis2.PhysicalMin.Y );
00493 pXAxis2.PhysicalMax = new Point( pXAxis2.PhysicalMax.X-changeRight, pXAxis2.PhysicalMax.Y );
00494
00495 pYAxis1.PhysicalMin = new Point( pYAxis1.PhysicalMin.X+changeLeft, pYAxis1.PhysicalMin.Y );
00496 pYAxis1.PhysicalMax = new Point( pYAxis1.PhysicalMax.X+changeLeft, pYAxis1.PhysicalMax.Y );
00497 pYAxis2.PhysicalMin = new Point( pYAxis2.PhysicalMin.X-changeRight, pYAxis2.PhysicalMin.Y );
00498 pYAxis2.PhysicalMax = new Point( pYAxis2.PhysicalMax.X-changeRight, pYAxis2.PhysicalMax.Y );
00499
00500 }
00501
00502 }
00503
00504 }
00505
00506
00514 public abstract void ApplyConstraint(
00515 PhysicalAxis pXAxis1, PhysicalAxis pYAxis1,
00516 PhysicalAxis pXAxis2, PhysicalAxis pYAxis2 );
00517 }
00518
00519 }