private int Add(AxMap map, object layer, bool Visible)
{
if (layer == null)
{
return(-1);
}
if (map == null)
{
throw new System.Exception("MapWinGIS.Map Object not yet set. Set Map Property before adding layers");
}
map.LockWindow(MapWinGIS.tkLockMode.lmLock);
int MapLayerHandle = map.AddLayer(layer, Visible);
if (MapLayerHandle < 0)
{
map.LockWindow(MapWinGIS.tkLockMode.lmUnlock);
return(MapLayerHandle);
}
MapWinGIS.Shapefile sf = (layer as MapWinGIS.Shapefile);
map.LockWindow(MapWinGIS.tkLockMode.lmUnlock);
// FireLayerAdded(MapLayerHandle);
return(MapLayerHandle);
}
/// <summary>
/// Redraw the LegendControl if not locked - See 'Locked' Property for more details
/// </summary>
public void Redraw(LegendRedraw redrawType = LegendRedraw.LegendOnly)
{
switch (redrawType)
{
case LegendRedraw.LegendOnly:
RedrawCore();
break;
case LegendRedraw.LegendAndMap:
_map.Redraw();
RedrawCore();
break;
case LegendRedraw.LegendAndMapForce:
bool locked = _map.IsLocked == tkLockMode.lmLock;
if (locked)
{
_map.LockWindow(tkLockMode.lmUnlock);
}
_map.Redraw();
if (locked)
{
_map.LockWindow(tkLockMode.lmLock);
}
RedrawCore();
break;
}
}
// <summary>
// Adds all the shapefiles and images with .tif and .png extentions from the specified folder to the map
// </summary>
public bool AddLayers(AxMap axMap1, string dataPath)
{
axMap1.RemoveAllLayers();
axMap1.LockWindow(tkLockMode.lmLock);
try
{
string[] files = Directory.GetFiles(dataPath);
foreach (string file in files)
{
int layerHandle = -1;
if (file.ToLower().EndsWith(".shp"))
{
Shapefile sf = new Shapefile();
if (sf.Open(file, null))
{
layerHandle = axMap1.AddLayer(sf, true);
}
else
{
MessageBox.Show(sf.ErrorMsg[sf.LastErrorCode]);
}
}
else if (file.ToLower().EndsWith(".tif") ||
file.ToLower().EndsWith(".png"))
{
Image img = new Image();
if (img.Open(file, ImageType.TIFF_FILE, false, null))
{
layerHandle = axMap1.AddLayer(img, true);
}
else
{
MessageBox.Show(img.ErrorMsg[img.LastErrorCode]);
}
}
if (layerHandle != -1)
{
axMap1.set_LayerName(layerHandle, Path.GetFileName(file));
}
}
}
finally
{
axMap1.LockWindow(tkLockMode.lmUnlock);
Debug.Print("Layers added to the map: " + axMap1.NumLayers);
}
return(axMap1.NumLayers > 0);
}
public int AddLayer(AxMap map, string[] LayerRoute, string mapName)
{
int layerHandle = 1;
map.LockWindow(tkLockMode.lmLock);
string layerName = "";
try
{
var fm = new FileManager();
foreach (var name in LayerRoute)
{
layerName = name;
string str_filename = layerName.Substring(layerName.LastIndexOf("\\") +
1, layerName.LastIndexOf(".") - (layerName.LastIndexOf("\\") + 1)); //文件名称
var layer = fm.Open(name);
if (layer == null)
{
string msg = string.Format("Failed to open datasource: {0} \n {1}", name, fm.ErrorMsg[fm.LastErrorCode]);
MessageHelper.Warn(msg);
}
else
{
if (str_filename == mapName)
{
layerHandle = Add(map, layer, true);
}
else
{
Add(map, layer, true);
}
}
}
}
catch
{
MessageHelper.Warn("There was a problem opening layer: " + layerName);
}
finally
{
map.LockWindow(tkLockMode.lmUnlock);
}
return(layerHandle);
}
public void LockMap()
{
_mapcontrol.LockWindow(tkLockMode.lmLock);
}
// <summary>
// Creates a drawing layer from the specified shapefile.
// </summary>
public void ShapefileToDrawingLayer(AxMap axMap1, string dataPath)
{
axMap1.Projection = tkMapProjection.PROJECTION_NONE;
axMap1.GrabProjectionFromData = true;
string[] filenames = new [] { "buildings.shp", "roads.shp", "points.shp" };
for (int i = 0; i < filenames.Length; i++)
{
filenames[i] = dataPath + filenames[i];
}
Extents extents = null;
var center = (axMap1.Extents as Extents).Center;
try
{
for (int n = 0; n < filenames.Length; n++)
{
Shapefile sf = new Shapefile();
if (sf.Open(filenames[n], null))
{
if (axMap1.Projection == tkMapProjection.PROJECTION_NONE)
{
axMap1.GeoProjection = sf.GeoProjection.Clone();
}
if (extents == null)
{
extents = sf.Extents; // the extents of the fist shapefile will be used to setup display
}
int drawHandle = axMap1.NewDrawing(tkDrawReferenceList.dlSpatiallyReferencedList);
for (int i = 0; i < sf.NumShapes; i++)
{
Shape shp = sf.Shape[i];
if (shp.ShapeType == ShpfileType.SHP_POINT)
{
double x = 0.0;
double y = 0.0;
shp.get_XY(0, ref x, ref y);
axMap1.DrawPointEx(drawHandle, x, y, 5, 0);
}
else
{
for (int p = 0; p < shp.NumParts; p++)
{
int initIndex = shp.Part[p];
int numPoints = shp.EndOfPart[p] - shp.Part[p] + 1;
if (numPoints > 0)
{
double[] x = new double[numPoints];
double[] y = new double[numPoints];
for (int j = 0; j < numPoints; j++)
{
shp.get_XY(j + initIndex, ref x[j], ref y[j]);
}
object xObj = x;
object yObj = y;
bool drawFill = shp.ShapeType == ShpfileType.SHP_POLYGON;
uint color = sf.ShapefileType == ShpfileType.SHP_POLYGON ? sf.DefaultDrawingOptions.FillColor :
sf.DefaultDrawingOptions.LineColor;
axMap1.DrawPolygonEx(drawHandle, ref xObj, ref yObj, numPoints, color, drawFill);
}
}
}
}
}
}
}
finally
{
if (extents != null)
{
axMap1.Extents = extents;
}
axMap1.LockWindow(tkLockMode.lmUnlock);
axMap1.Redraw();
}
}
