public Geometry.Box BoxFromZoomBox(ZoomBox zoomBox)
{
// fragment of the window in window coordinates
double w = dst_orig_w;
double h = dst_orig_h;
double zw = zoomBox.Dim(0);
double zh = zoomBox.Dim(1);
double zmin_x = (zoomBox.Min[0] + zw * viewFix) * w;
double zmin_y = h - (zoomBox.Min[1] + zh * viewFix) * h;
double zmax_x = (zoomBox.Max[0] - zw * viewFix) * w;
double zmax_y = h - (zoomBox.Max[1] - zw * viewFix) * h;
// convert to box coordinates
double min_x = InverseConvertX(zmin_x);
double min_y = InverseConvertY(zmin_y);
double max_x = InverseConvertX(zmax_x);
double max_y = InverseConvertY(zmax_y);
return(new Geometry.Box(new Geometry.Point(min_x, min_y),
new Geometry.Point(max_x, max_y)));
}
// For PlotWatch
public static Geometry.Box DrawPlots(Graphics graphics,
IDrawable[] drawables, Geometry.Traits[] traits,
Settings[] settings, Colors colors, ZoomBox zoomBox)
{
return(Draw(graphics, true, drawables, traits, settings, colors, zoomBox));
}
// For GeometryWatch and PlotWatch
static Geometry.Box Draw(Graphics graphics, bool ignoreTraits,
IDrawable[] drawables, Geometry.Traits[] traits,
Settings[] settings, Colors colors, ZoomBox zoomBox)
{
if (drawables.Length != traits.Length || drawables.Length != settings.Length)
{
throw new ArgumentOutOfRangeException("drawables.Length, traits.Length, settings.Length");
}
Geometry.Box box = new Geometry.Box();
Geometry.AssignInverse(box);
int drawnCount = 0;
int count = drawables.Length;
bool[] drawnFlags = new bool[count];
HashSet <int> dimensions = new HashSet <int>();
HashSet <Geometry.CoordinateSystem> csystems = new HashSet <Geometry.CoordinateSystem>();
HashSet <Geometry.Unit> units = new HashSet <Geometry.Unit>();
for (int i = 0; i < count; ++i)
{
if (ignoreTraits)
{
traits[i] = null;
}
if (drawables[i] != null)
{
if (traits[i] != null)
{
dimensions.Add(traits[i].Dimension);
csystems.Add(traits[i].CoordinateSystem);
units.Add(traits[i].Unit);
}
Geometry.Box aabb = drawables[i].Aabb(traits[i], false);
Geometry.Expand(box, aabb);
++drawnCount;
drawnFlags[i] = aabb.IsValid();
}
}
if (drawnCount > 0)
{
if (csystems.Count > 1)
{
throw new Exception("Multiple coordinate systems detected.");
}
if (csystems.Count > 0 && csystems.First() == Geometry.CoordinateSystem.SphericalPolar)
{
throw new Exception("This coordinate system is not yet supported.");
}
if (units.Count > 1)
{
throw new Exception("Multiple units detected.");
}
Geometry.Traits commonTraits = (dimensions.Count > 0 && csystems.Count > 0 && units.Count > 0)
? new Geometry.Traits(dimensions.Max(), csystems.First(), units.First())
: null;
bool fill = (commonTraits == null);
// Fragment of the box
if (box.IsValid() && zoomBox.IsZoomed())
{
// window coordinates of the box
LocalCS cs = new LocalCS(box, graphics, fill);
box = cs.BoxFromZoomBox(zoomBox);
// TODO: With current approach changing the original box (resize, enlarge, etc.)
// may produce wierd results because zoomBox is relative to the original box.
}
// Axes
if (box.IsValid())
{
Geometry.Unit unit = commonTraits != null ? commonTraits.Unit : Geometry.Unit.None;
Drawer.DrawAxes(graphics, box, unit, colors, fill);
}
// Drawables
for (int i = 0; i < count; ++i)
{
if (drawables[i] != null && drawnFlags[i] == true)
{
drawables[i].Draw(box, graphics, settings[i], commonTraits);
}
}
// Scales
if (box.IsValid())
{
Drawer.DrawScales(graphics, box, colors, fill);
}
// CS info
if (commonTraits != null)
{
SolidBrush brush = new SolidBrush(colors.TextColor);
Font font = new Font(new FontFamily(System.Drawing.Text.GenericFontFamilies.SansSerif), 10);
string str = Geometry.Name(csystems.First());
if (units.First() != Geometry.Unit.None)
{
str += '[' + Geometry.Name(units.First()) + ']';
}
graphics.DrawString(str, font, brush, 0, 0);
}
return(box);
}
return(null);
}