public void GetProjectedEventDelta(IMuteMap map, MouseEventArgs e, out double dx, out double dy)
{
map.PixelToProj(X, Y, out double x1, out double y1);
map.PixelToProj(e.X, e.Y, out double x2, out double y2);
dx = -x1 + x2;
dy = -y1 + y2;
}
/// <summary>
/// Finishes the label moving operation.
/// </summary>
private void MapMouseUp(IMuteMap map, MouseEventArgs e)
{
if (!Active || _currentLabel.LayerHandle == -1)
{
return;
}
if (e.X == _currentLabel.X || e.Y == _currentLabel.Y)
{
Clear();
return;
}
// check that new position is within map
if (e.X < 0 || e.Y < 0 || e.X > map.Width || e.Y > map.Height)
{
Clear();
return;
}
var fs = map.GetFeatureSet(_currentLabel.LayerHandle);
if (_currentLabel.IsChart)
{
var chart = fs.Diagrams[_currentLabel.LabelIndex];
if (chart != null)
{
double x1, x2, y1, y2;
map.PixelToProj(_currentLabel.X, _currentLabel.Y, out x1, out y1);
map.PixelToProj(e.X, e.Y, out x2, out y2);
chart.PositionX = chart.PositionX - x1 + x2;
chart.PositionY = chart.PositionY - y1 + y2;
fs.Diagrams.SavingMode = PersistenceType.XmlOverwrite; // .chart file should be overwritten
_context.Project.SetModified();
map.Redraw();
}
}
else
{
var lb = fs.Labels.Items[_currentLabel.LabelIndex, _currentLabel.PartIndex];
if (lb != null)
{
double x1, x2, y1, y2;
map.PixelToProj(_currentLabel.X, _currentLabel.Y, out x1, out y1);
map.PixelToProj(e.X, e.Y, out x2, out y2);
lb.X = lb.X - x1 + x2;
lb.Y = lb.Y - y1 + y2;
fs.Labels.SavingMode = PersistenceType.XmlOverwrite; // .lbl file should be overwritten
_context.Project.SetModified();
map.Redraw();
}
}
Clear();
}
public void OffsetShapes(IFeatureSet fs, double screenOffsetX, double screenOffsetY)
{
double x1, x2, y1, y2;
_map.PixelToProj(0.0, 0.0, out x1, out y1);
_map.PixelToProj(screenOffsetX, screenOffsetY, out x2, out y2);
foreach (var ft in fs.Features)
{
ft.Geometry.Move(x2 - x1, y2 - y1);
}
}
private ObjectRotateData FindRotatebleItem(int x, int y)
{
foreach (var layer in _map.Layers.ToList())
{
if (layer == null || !layer.IsVector || layer.FeatureSet == null)
{
continue;
}
if (layer.FeatureSet.GeometryType != GeometryType.Point)
{
continue;
}
var fs = layer.FeatureSet;
var env = new Envelope();
_map.PixelToProj(x, y, out double projX, out double projY);
env.SetBounds(new Coordinate(projX, projY), (_map as IMuteMap).GetProjectedMouseTolerance(), (_map as IMuteMap).GetProjectedMouseTolerance());
// Try to find a point feature
if (FindPointFeature(fs, env) is int featureIndex)
{
return(CreateObjectRotateDataForPoint(x, y, _map, layer, featureIndex));
}
}
return(null);
}
/// <remarks>
/// TODO: think of a better place for it to allow reuse
/// </remarks>
private void DisplayCurrentPixelValue(IMuteMap map, int pixelX, int pixelY)
{
var layer = map.Layers.Current;
if (layer == null)
{
return;
}
var raster = layer.Raster;
if (raster == null)
{
return;
}
if (raster.RenderingType == RasterRendering.Rgb)
{
return;
}
double projX, projY;
map.PixelToProj(pixelX, pixelY, out projX, out projY);
int column, row;
if (raster.ProjectionToImage(projX, projY, out column, out row))
{
var band = raster.ActiveBand;
double value;
if (band.GetValue(column, row, out value))
{
string msg = string.Format("Raster info. Row: {0}; Column: {1}; Value: {2}", row, column, value);
_context.StatusBar.ShowInfo(msg);
}
}
else
{
_context.StatusBar.ShowInfo("");
}
}
public static double GetProjectedMouseTolerance(this IMuteMap map)
{
map.PixelToProj(0, 0, out double x1, out double _);
map.PixelToProj(MapConfig.MouseTolerance, 0, out double x2, out _);
return(Math.Abs(x1 - x2));
}