private ObjectRotateData CreateObjectRotateDataForPoint(IMuteMap map, ILayer layer, int featureIndex)
{
IFeature feature = layer.FeatureSet.Features[featureIndex];
if (feature == null)
{
Clear();
return(CurrentObject);
}
var point = feature.Geometry.Points.First();
var data = new SymbolRotateData(map, layer.Handle, featureIndex, point.X, point.Y)
{
OriginalRotation = feature.Rotation,
};
string rotationExpression = layer.FeatureSet?.Style?.Marker?.RotationExpression ?? "";
if (feature.CategoryIndex > 0)
{
rotationExpression = feature.Category?.Style?.Marker?.RotationExpression ?? "";
}
var rotationFieldIndex = GetRotationFieldIndex(rotationExpression, layer);
if (rotationFieldIndex > 0)
{
data.HasBackingRotationField = true;
data.RotationField = rotationFieldIndex;
data.OriginalRotation = feature.GetAsDouble(rotationFieldIndex);
}
return(data);
}
private ObjectRotateData CreateObjectRotateDataForPoint(int x, int y, IMuteMap map, ILayer layer, int featureIndex)
{
IFeature feature = layer.FeatureSet.Features[featureIndex];
if (feature == null)
{
Clear();
return(_currentObject);
}
var data = new SymbolRotateData(map, layer.Handle, featureIndex)
{
X = x,
Y = y,
OriginalRotation = feature.Rotation
};
string rotationExpression = layer.FeatureSet?.Style?.Marker?.RotationExpression ?? "";
if (feature.CategoryIndex > 0)
{
rotationExpression = feature.Category?.Style?.Marker?.RotationExpression ?? "";
}
var rotationFieldIndex = GetRotationFieldIndex(rotationExpression, layer);
if (rotationFieldIndex > 0)
{
data.HasBackingRotationField = true;
data.RotationField = rotationFieldIndex;
data.OriginalRotation = feature.GetAsDouble(rotationFieldIndex);
}
else
{
MessageBox.Show("This feature does not have a single field rotation expression - can not rotate symbol.");
Clear();
return(_currentObject);
}
return(data);
}