public static IEnvelope SetBoundsWithXYRatio(IEnvelope bounds, SizeF ratio)
{
if (NumericHelper.Equal(ratio.Width, 0.0) || NumericHelper.Equal(ratio.Height, 0.0))
{
return(bounds.Clone());
}
double height = bounds.Height;
double width = bounds.Width;
if (ratio.Height / ratio.Width > height / width)
{
height = ratio.Height * width / ratio.Width;
}
else
{
width = ratio.Width * height / ratio.Height;
}
var result = new Envelope();
result.SetBounds(bounds.Center, width, height);
return(result);
}
/// <summary>
/// Zooms to the extents of all layers
/// Adds an extra 10 % marge to each border
/// </summary>
public virtual void ZoomToExtents()
{
IEnvelope boundingBox = GetExtents();
if (null == boundingBox)
{
return;
}
boundingBox = (IEnvelope)boundingBox.Clone();
// beware of true 1d networks
if ((boundingBox.Width < 1.0e-6) && (boundingBox.Height < 1.0e-6))
{
return;
}
double minX = 0.0;
double minY = 0.0;
if (boundingBox.Width < 1.0e-6)
{
minX = 1.0;
}
if (boundingBox.Height < 1.0e-6)
{
minY = 1.0;
}
boundingBox.ExpandBy(minX + boundingBox.Width / 10, minY + boundingBox.Height / 10);
ZoomToBox(boundingBox);
}
public static IEnvelope CloneProject(this IEnvelope envelope, ISpatialReference spatialReference)
{
IEnvelope clone = envelope.Clone();
clone.Project(spatialReference);
return(clone);
}
public void ZooomToOriginalExtents()
{
if (_extentsOriginal != null)
{
Envelope = _extentsOriginal.Clone();
}
}
/// <summary>
/// Adds map element to the new layout.
/// </summary>
/// <param name="mapScale">The map scale.</param>
/// <param name="extents">The extents.</param>
private void AddMapElement(int mapScale, IEnvelope extents)
{
var map = _context.Map;
var mapElement = new LayoutMap();
mapElement.Initialize(map, View.LayoutControl);
mapElement.IsMain = true;
mapElement.TileProvider = _context.Map.TileProvider;
mapElement.LocationF = new PointF(PrintingConstants.DefaultMapOffset, PrintingConstants.DefaultMapOffset);
mapElement.DrawTiles = map.Tiles.Visible;
// calc the necessary size in paper coordinates
GeoSize size;
if (map.GetGeodesicSize(extents, out size))
{
mapElement.SizeF = LayoutScaleHelper.CalcMapSize(mapScale, size, extents.Width / extents.Height);
mapElement.Envelope = extents.Clone();
mapElement.Initialized = true;
View.LayoutControl.AddToLayout(mapElement);
View.LayoutControl.UpdateLayout();
View.LayoutControl.ZoomFitToScreen();
}
}
private void SetNewExtents(IEnvelope box)
{
_extents = box;
if (_extentsOriginal == null && box != null)
{
_extentsOriginal = box.Clone();
}
}
private void CoordinateItem_TextChanged(object sender, EventArgs e)
{
if (BoundsOverride.Tag as TreeNode == null || m_isUpdating)
{
return;
}
TreeNode root = BoundsOverride.Tag as TreeNode;
if (!m_coordinateOverrides.ContainsKey(root.Text))
{
//IEnvelope newbox = new OSGeo.MapGuide.IEnvelope();
IMapDefinition mdf = root.Tag as IMapDefinition;
ITileSetDefinition tdf = root.Tag as ITileSetDefinition;
IEnvelope origbox = null;
if (mdf != null)
{
origbox = mdf.Extents;
}
else if (tdf != null)
{
origbox = tdf.Extents;
}
IEnvelope newbox = origbox.Clone();
m_coordinateOverrides.Add(root.Text, newbox);
}
double d;
if (double.TryParse(txtLowerX.Text, System.Globalization.NumberStyles.Float, System.Globalization.CultureInfo.CurrentUICulture, out d))
{
m_coordinateOverrides[root.Text].MinX = d;
}
if (double.TryParse(txtLowerY.Text, System.Globalization.NumberStyles.Float, System.Globalization.CultureInfo.CurrentUICulture, out d))
{
m_coordinateOverrides[root.Text].MinY = d;
}
if (double.TryParse(txtUpperX.Text, System.Globalization.NumberStyles.Float, System.Globalization.CultureInfo.CurrentUICulture, out d))
{
m_coordinateOverrides[root.Text].MaxX = d;
}
if (double.TryParse(txtUpperY.Text, System.Globalization.NumberStyles.Float, System.Globalization.CultureInfo.CurrentUICulture, out d))
{
m_coordinateOverrides[root.Text].MaxY = d;
}
}
/// <summary>
/// Zooms to the extents of all layers
/// Adds an extra 10 % marge to each border
/// </summary>
public virtual void ZoomToExtents()
{
IEnvelope boundingBox = GetExtents();
if (null == boundingBox)
{
return;
}
boundingBox = (IEnvelope)boundingBox.Clone();
// beware of true 1d networks
if ((boundingBox.Width < 1.0e-6) && (boundingBox.Height < 1.0e-6))
{
return;
}
AddMargin(boundingBox, defaultExtendsMarginPercentage);
ZoomToFit(boundingBox);
}
/// <summary>
/// Actual rendering of map
/// </summary>
private bool RenderMap(IEnvelope extent, Size bitmapSize, Graphics g)
{
if (bitmapSize.Width < 1 | bitmapSize.Height < 1)
{
return(false);
}
_map.Lock();
// save settings
bool state = _map.ScalebarVisible;
_map.ScalebarVisible = false;
float dx = g.Transform.OffsetX;
float dy = g.Transform.OffsetY;
var clip = g.ClipBounds;
// rendering
g.Clear(Color.White);
var dcPtr = g.GetHdc();
bool result;
// several map elements may set different tile providers,
// mutually exclusive excess is needed to avoid interference
lock (_layoutControl.TileLoader.Lock)
{
PrepareTiles();
result = _map.SnapShotToDC2(dcPtr, extent.Clone(), bitmapSize.Width, dx, dy, clip.X, clip.Y, clip.Width, clip.Height);
RestoreTiles();
}
g.ReleaseHdc(dcPtr);
// restore settings
_map.ScalebarVisible = state;
_map.Unlock();
return(result);
}
/// <summary>
/// Zooms the map to fit a bounding box.
/// </summary>
/// <remarks>
/// NOTE: If the aspect ratio of the box and the aspect ratio of the mapsize
/// isn't the same, the resulting map-envelope will be adjusted so that it contains
/// the bounding box, thus making the resulting envelope larger!
/// </remarks>
/// <param name="bbox"></param>
/// <param name="addMargin">Add a default margin?</param>
public virtual void ZoomToFit(IEnvelope bbox, bool addMargin)
{
if (bbox == null || bbox.Width == 0 || bbox.Height == 0)
{
return;
}
//create a copy so we don't mess up any given envelope...
bbox = (IEnvelope)bbox.Clone();
if (addMargin)
{
AddMargin(bbox, defaultExtendsMarginPercentage);
}
desiredEnvelope = bbox;
zoom = bbox.Width; //Set the private center value so we only fire one MapOnViewChange event
//if the map height is smaller than the given bbox height scale to the height
if (Envelope.Height < bbox.Height)
{
zoom *= bbox.Height / MapHeight;
//zoom *= bbox.Height / Envelope.Height; --> Significance decrease for large center coordinates (TOOLS-7678)
}
center = bbox.Centre;
UpdateDimensions();
if (GetExtents() == null || GetExtents().IsNull)
{
desiredEnvelope = Envelope;
}
if (MapViewOnChange != null)
{
MapViewOnChange();
}
SetRenderRequiredForAllLayers();
}
