C# NPlot.Axis类代码示例

 /// <summary>
 /// Copy Constructor
 /// </summary>
 /// <param name="a">construct a TradingDateTimeAxis based on this provided axis.</param>
 public TradingDateTimeAxis(Axis a)
     : base(a)
 {
     Init();
     if (a is TradingDateTimeAxis)
         DoClone ((TradingDateTimeAxis)a, this);
     else if (a is DateTimeAxis)
         DoClone ((DateTimeAxis)a, this);
     else {
         DoClone (a, this);
         this.NumberFormat = null;
     }
 }

        /// <summary>
        /// MouseDown method for AxisDrag interaction
        /// </summary>
        /// <param name="X">mouse X position</param>
        /// <param name="Y">mouse Y position</param>
        /// <param name="keys">mouse and keyboard modifiers</param>
        /// <param name="ps">the InteractivePlotSurface2D</param>
        public override bool DoMouseDown(int X, int Y, Modifier keys, InteractivePlotSurface2D ps)
        {
            // if the mouse is inside the plot area [the tick marks may be here,
                // and are counted as part of the axis], then don't invoke drag.
                if (ps.PlotAreaBoundingBoxCache.Contains(X,Y)) {
                    return false;
                }

                if ((keys & Modifier.Button1) != 0) {
                    // see if hit with axis. NB Only one axis object will be returned
                    ArrayList objects = ps.HitTest(new Point(X, Y));

                    foreach (object o in objects) {
                        if (o is NPlot.Axis) {
                            dragging_ = true;
                            axis_ = (Axis)o;

                            if (ps.PhysicalXAxis1Cache.Axis == axis_) {
                                physicalAxis_ = ps.PhysicalXAxis1Cache;
                                ps.plotCursor = CursorType.LeftRight;
                            }
                            else if (ps.PhysicalXAxis2Cache.Axis == axis_) {
                                physicalAxis_ = ps.PhysicalXAxis2Cache;
                                ps.plotCursor = CursorType.LeftRight;
                            }
                            else if (ps.PhysicalYAxis1Cache.Axis == axis_) {
                                physicalAxis_ = ps.PhysicalYAxis1Cache;
                                ps.plotCursor = CursorType.UpDown;
                            }
                            else if (ps.PhysicalYAxis2Cache.Axis == axis_) {
                                physicalAxis_ = ps.PhysicalYAxis2Cache;
                                ps.plotCursor = CursorType.UpDown;
                            }

                            startPoint_ = new Point(X, Y);	// don't combine these - Mono
                            lastPoint_ = startPoint_;		// bug #475205 prior to 2.4

                            // evaluate focusRatio about which axis is expanded
                            float  x = startPoint_.X - physicalAxis_.PhysicalMin.X;
                            float  y = startPoint_.Y - physicalAxis_.PhysicalMin.Y;
                            double r = Math.Sqrt(x*x + y*y);
                            focusRatio_ = r/physicalAxis_.PhysicalLength;

                            return false;
                        }
                    }
                }
                return false;
        }

 /// <summary>
 /// Clears the plot and resets to default values.
 /// </summary>
 public void Clear()
 {
     xAxis1ZoomCache_ = null;
     yAxis1ZoomCache_ = null;
     xAxis2ZoomCache_ = null;
     yAxis2ZoomCache_ = null;
     ps_.Clear();
     interactions_.Clear();
 }

                /// <summary>
                /// 
                /// </summary>
                /// <param name="e"></param>
                /// <param name="ctr"></param>
                public override bool DoMouseUp(MouseEventArgs e, Control ctr)
                {
                    if (doing_)
                    {
                        doing_ = false;
                        axis_ = null;
                        physicalAxis_ = null;
                        lastPoint_ = new Point();
                    }

                    return false;
                }

		/// <summary>
		/// Copy Constructor
		/// </summary>
		/// <param name="a">The Axis to clone.</param>
		public LogAxis(Axis a)
			: base(a)
		{
			Init();
		}

 /// <summary>
 /// Construct
 /// </summary>
 /// <param name="a">The axis this is a physical representation of.</param>
 /// <param name="physicalMin">the physical position of the world minimum axis value.</param>
 /// <param name="physicalMax">the physical position of the world maximum axis value.</param>
 public PhysicalAxis(Axis a, Point physicalMin, Point physicalMax)
 {
     Axis = a;
     PhysicalMin = physicalMin;
     PhysicalMax = physicalMax;
 }

 /// <summary>
 /// Constructor
 /// </summary>
 /// <param name="a">Axis to construct from</param>
 public DateTimeAxis(Axis a)
     : base(a)
 {
     Init ();
     NumberFormat = null;
 }

        private void DetermineAxesToDraw( out Axis xAxis1, out Axis xAxis2, out Axis yAxis1, out Axis yAxis2 )
        {
            xAxis1 = this.xAxis1_;
            xAxis2 = this.xAxis2_;
            yAxis1 = this.yAxis1_;
            yAxis2 = this.yAxis2_;

            if (this.xAxis1_ == null)
            {
                if (this.xAxis2_ == null)
                {
                    throw new NPlotException( "Error: No X-Axis specified" );
                }
                xAxis1 = (Axis)this.xAxis2_.Clone();
                xAxis1.HideTickText = true;
                xAxis1.TicksAngle = -(float)Math.PI / 2.0f;
            }

            if (this.xAxis2_ == null)
            {
                // don't need to check if xAxis1_ == null, as case already handled above.
                xAxis2 = (Axis)this.xAxis1_.Clone();
                xAxis2.HideTickText = true;
                xAxis2.TicksAngle = (float)Math.PI / 2.0f;
            }

            if (this.yAxis1_ == null)
            {
                if (this.yAxis2_ == null)
                {
                    throw new NPlotException( "Error: No Y-Axis specified" );
                }
                yAxis1 = (Axis)this.yAxis2_.Clone();
                yAxis1.HideTickText = true;
                yAxis1.TicksAngle = (float)Math.PI / 2.0f;
            }

            if (this.yAxis2_ == null)
            {
                // don't need to check if yAxis1_ == null, as case already handled above.
                yAxis2 = (Axis)this.yAxis1_.Clone();
                yAxis2.HideTickText = true;
                yAxis2.TicksAngle = -(float)Math.PI / 2.0f;
            }
        }

        /// <summary>
        /// Helper method for Clone. Does all the copying - can be called by derived
        /// types so they don't need to implement this part of the copying themselves.
        /// also useful in constructor of derived types that takes Axis class.
        /// </summary>
        protected static void DoClone(Axis src, Axis dest)
        {
            // value items
            dest.autoScaleText_ = src.autoScaleText_;
            dest.autoScaleTicks_ = src.autoScaleTicks_;
            dest.worldMax_ = src.worldMax_;
            dest.worldMin_ = src.worldMin_;
            dest.tickTextNextToAxis_ = src.tickTextNextToAxis_;
            dest.hidden_ = src.hidden_;
            dest.hideTickText_ = src.hideTickText_;
            dest.reversed_ = src.reversed_;
            dest.ticksAngle_ = src.ticksAngle_;
            dest.ticksLabelAngle_ = src.ticksLabelAngle_;
            dest.minPhysicalLargeTickStep_ = src.minPhysicalLargeTickStep_;
            dest.ticksIndependentOfPhysicalExtent_ = src.ticksIndependentOfPhysicalExtent_;
            dest.largeTickSize_ = src.largeTickSize_;
            dest.smallTickSize_ = src.smallTickSize_;
            dest.ticksCrossAxis_ = src.ticksCrossAxis_;
            dest.labelOffset_ = src.labelOffset_;
            dest.labelOffsetAbsolute_ = src.labelOffsetAbsolute_;
            dest.labelOffsetScaled_ = src.labelOffsetScaled_;
            dest.lineColor_ = src.lineColor_;
            dest.tickTextColor_ = src.tickTextColor_;
            dest.labelColor_ = src.labelColor_;
            dest.fontScale_ = src.fontScale_;
            dest.tickScale_ = src.tickScale_;

            // reference items.
            dest.tickTextFont_ = src.tickTextFont_.WithScaledSize (1.0);
            dest.labelFont_ = src.labelFont_.WithScaledSize (1.0);
            dest.label_ = (string)src.label_.Clone();
        }

 /// <summary>
 /// Copy constructor.
 /// </summary>
 /// <param name="src">The Axis to clone.</param>
 public Axis(Axis src )
 {
     Axis.DoClone (src, this);
 }

        private void Init()
        {
            drawables_ = new ArrayList();
            xAxisPositions_ = new ArrayList();
            yAxisPositions_ = new ArrayList();
            zPositions_ = new ArrayList();
            ordering_ = new SortedList();
            FontFamily fontFamily = FontFamily.GenericSansSerif;
            TitleFont = new Font(fontFamily, 14, FontStyle.Regular);
            padding_ = 10;
            title_ = "";
            autoScaleTitle_ = false;
            autoScaleAutoGeneratedAxes_ = false;
            xAxis1_ = null;
            xAxis2_ = null;
            yAxis1_ = null;
            yAxis2_ = null;
            pXAxis1Cache_ = null;
            pYAxis1Cache_ = null;
            pXAxis2Cache_ = null;
            pYAxis2Cache_ = null;
            titleBrush_ = new SolidBrush( Color.Black );
            plotBackColor_ = Color.White;

            this.legend_ = null;

            axesConstraints_ = new ArrayList();
        }

 /// <summary>
 /// Constructor
 /// </summary>
 /// <param name="a">Axis to construct from</param>
 public DateTimeAxis( Axis a )
     : base(a)
 {
     this.Init();
     this.NumberFormat = null;
 }

        private void Init()
        {
            drawables = new ArrayList ();
            xAxisPositions = new ArrayList ();
            yAxisPositions = new ArrayList ();
            zPositions = new ArrayList ();
            ordering = new SortedList ();

            try {
                TitleFont = Font.FromName ("Tahoma 14");
            }
            catch (System.ArgumentException) {
                throw new NPlotException("Error: Tahoma font is not installed on this system");
            }

            padding = 10;
            title = "";
            autoScaletitle = false;
            autoScaleAutoGeneratedAxes = false;
            xAxis1 = null;
            xAxis2 = null;
            yAxis1 = null;
            yAxis2 = null;
            pXAxis1Cache = null;
            pYAxis1Cache = null;
            pXAxis2Cache = null;
            pYAxis2Cache = null;
            titleColor = Colors.Black;
            plotBackColor = Colors.White;

            legend = null;
            axesConstraints = new ArrayList ();
        }

        private void DeterminePhysicalAxesToDraw(Rectangle bounds, 
			Axis xAxis1, Axis xAxis2, Axis yAxis1, Axis yAxis2,
			out PhysicalAxis pXAxis1, out PhysicalAxis pXAxis2, 
			out PhysicalAxis pYAxis1, out PhysicalAxis pYAxis2 )
        {
            Rectangle cb = bounds;

            pXAxis1 = new PhysicalAxis (xAxis1,
                new Point (cb.Left, cb.Bottom), new Point (cb.Right, cb.Bottom) );
            pYAxis1 = new PhysicalAxis (yAxis1,
                new Point (cb.Left, cb.Bottom), new Point (cb.Left, cb.Top) );
            pXAxis2 = new PhysicalAxis (xAxis2,
                new Point (cb.Left, cb.Top), new Point (cb.Right, cb.Top) );
            pYAxis2 = new PhysicalAxis (yAxis2,
                new Point (cb.Right, cb.Bottom), new Point (cb.Right, cb.Top) );

            double bottomIndent = padding;
            if (!pXAxis1.Axis.Hidden) {
                // evaluate its bounding box
                Rectangle bb = pXAxis1.GetBoundingBox ();
                // finally determine its indentation from the bottom
                bottomIndent = bottomIndent + bb.Bottom - cb.Bottom;
            }

            double leftIndent = padding;
            if (!pYAxis1.Axis.Hidden) {
                // evaluate its bounding box
                Rectangle bb = pYAxis1.GetBoundingBox();
                // finally determine its indentation from the left
                leftIndent = leftIndent - bb.Left + cb.Left;
            }

            // determine title size
            double scale = DetermineScaleFactor (bounds.Width, bounds.Height);
            Font scaled_font;
            if (AutoScaleTitle) {
                scaled_font = titleFont.WithScaledSize (scale);
            }
            else {
                scaled_font = titleFont;
            }

            Size titleSize;
            using (TextLayout layout = new TextLayout ()) {
                layout.Font = scaled_font;
                layout.Text = Title;
                titleSize = layout.GetSize ();
            };
            double topIndent = padding;

            if (!pXAxis2.Axis.Hidden) {
                // evaluate its bounding box
                Rectangle bb = pXAxis2.GetBoundingBox();
                topIndent = topIndent - bb.Top + cb.Top;

                // finally determine its indentation from the top
                // correct top indendation to take into account plot title
                if (title != "" ) {
                    topIndent += titleSize.Height * 1.3;
                }
            }

            double rightIndent = padding;
            if (!pYAxis2.Axis.Hidden) {
                // evaluate its bounding box
                Rectangle bb = pYAxis2.GetBoundingBox();

                // finally determine its indentation from the right
                rightIndent += (bb.Right-cb.Right);
            }

            // now we have all the default calculated positions and we can proceed to
            // "move" the axes to their right places

            // primary axes (bottom, left)
            pXAxis1.PhysicalMin = new Point( cb.Left+leftIndent, cb.Bottom-bottomIndent );
            pXAxis1.PhysicalMax = new Point( cb.Right-rightIndent, cb.Bottom-bottomIndent );
            pYAxis1.PhysicalMin = new Point( cb.Left+leftIndent, cb.Bottom-bottomIndent );
            pYAxis1.PhysicalMax = new Point( cb.Left+leftIndent, cb.Top+topIndent );

            // secondary axes (top, right)
            pXAxis2.PhysicalMin = new Point( cb.Left+leftIndent, cb.Top+topIndent );
            pXAxis2.PhysicalMax = new Point( cb.Right-rightIndent, cb.Top+topIndent );
            pYAxis2.PhysicalMin = new Point( cb.Right-rightIndent, cb.Bottom-bottomIndent );
            pYAxis2.PhysicalMax = new Point( cb.Right-rightIndent, cb.Top+topIndent );
        }

        private void DetermineAxesToDraw(out Axis xAxis_1, out Axis xAxis_2, out Axis yAxis_1, out Axis yAxis_2)
        {
            xAxis_1 = xAxis1;
            xAxis_2 = xAxis2;
            yAxis_1 = yAxis1;
            yAxis_2 = yAxis2;

            if (xAxis1 == null) {
                if (xAxis2 == null) {
                    throw new NPlotException ("Error: No X-Axis specified");
                }
                xAxis_1 = (Axis)xAxis2.Clone ();
                xAxis_1.HideTickText = true;
                xAxis_1.TicksAngle = -Math.PI / 2;
            }

            if (xAxis2 == null) {
                // don't need to check if xAxis1 == null, as case already handled above.
                xAxis_2 = (Axis)xAxis1.Clone ();
                xAxis_2.HideTickText = true;
                xAxis_2.TicksAngle = Math.PI / 2.0;
            }

            if (yAxis1 == null) {
                if (yAxis2 == null) {
                    throw new NPlotException  ("Error: No Y-Axis specified");
                }
                yAxis_1 = (Axis)yAxis2.Clone();
                yAxis_1.HideTickText = true;
                yAxis_1.TicksAngle = Math.PI / 2.0;
            }

            if (yAxis2 == null) {
                // don't need to check if yAxis1 == null, as case already handled above.
                yAxis_2 = (Axis)yAxis1.Clone();
                yAxis_2.HideTickText = true;
                yAxis_2.TicksAngle = -Math.PI / 2.0;
            }
        }