private void toolStripButton2_Click(object sender, EventArgs e)
{
string exportlog;
/*reinitialize shape names lists*/
txtSave.Clear();
/*check that at least one type of shape is selected*/
if ((!cbLines.Checked) && (!cbPoints.Checked) && (!cbPolygons.Checked))
{
txtSave.Text = "You need to select at least one type of shape to export";
return;
}
ConversionOptions options = new ConversionOptions();
options.Lines = cbLines.Checked;
options.Points = cbPoints.Checked;
options.Polygons = cbPolygons.Checked;
options.ConvertTags = cbExtractMetaData.Checked;
options.Projection = tbProjection.Text;
if (saveFileDialog1.ShowDialog() == DialogResult.OK)
{
// This is to get around a peculiar behaviour of ShapeLib.
// If the selected file has an extension, it is overwritten,
// no matter which additions are made to the filename in
// ConvertToSHP. By stripping the extension and all additions
// made by previous runs of the program, it is ensured that
// new *-points, *-lines, and *-polygons files are created.
string tempName = saveFileDialog1.FileName;
tempName = tempName.Substring(0, tempName.LastIndexOf("."));
if (tempName.LastIndexOf("-points") > 0)
{
tempName = tempName.Substring(0, tempName.LastIndexOf("-points"));
}
if (tempName.LastIndexOf("-lines") > 0)
{
tempName = tempName.Substring(0, tempName.LastIndexOf("-lines"));
}
if (tempName.LastIndexOf("-polygons") > 0)
{
tempName = tempName.Substring(0, tempName.LastIndexOf("-polygons"));
}
options.Filename = tempName;
}
else
{
return;
}
exportlog = export.SaveToShapefile(options);
txtSave.Text += exportlog;
}
private void toolStripButton2_Click(object sender, EventArgs e)
{
string exportlog;
/*reinitialize shape names lists*/
txtSave.Clear();
/*check that at least one type of shape is selected*/
if ((!cbLines.Checked) && (!cbPoints.Checked) && (!cbPolygons.Checked))
{
txtSave.Text = "You need to select at least one type of shape to export";
return;
}
ConversionOptions options = new ConversionOptions();
options.Lines = cbLines.Checked;
options.Points = cbPoints.Checked;
options.Polygons = cbPolygons.Checked;
options.ConvertTags = cbExtractMetaData.Checked;
options.Projection = tbProjection.Text;
if (saveFileDialog1.ShowDialog() == DialogResult.OK)
{
// This is to get around a peculiar behaviour of ShapeLib.
// If the selected file has an extension, it is overwritten,
// no matter which additions are made to the filename in
// ConvertToSHP. By stripping the extension and all additions
// made by previous runs of the program, it is ensured that
// new *-points, *-lines, and *-polygons files are created.
string tempName = saveFileDialog1.FileName;
tempName = tempName.Substring(0, tempName.LastIndexOf("."));
if (tempName.LastIndexOf("-points") > 0)
{
tempName = tempName.Substring(0, tempName.LastIndexOf("-points"));
}
if (tempName.LastIndexOf("-lines") > 0)
{
tempName = tempName.Substring(0, tempName.LastIndexOf("-lines"));
}
if (tempName.LastIndexOf("-polygons") > 0)
{
tempName = tempName.Substring(0, tempName.LastIndexOf("-polygons"));
}
options.Filename = tempName;
}
else
return;
exportlog = export.SaveToShapefile(options);
txtSave.Text += exportlog;
}
public string SaveToShapefile(ConversionOptions options)
{
ShapeLib.ShapeType shapetype;
double[] x, y;
IntPtr hShpPoly = IntPtr.Zero, hShpLine = IntPtr.Zero, hShpPoint = IntPtr.Zero;
linesData = new List <MetaData>();
polygonsData = new List <MetaData>();
pointsData = new List <MetaData>();
if (options.Lines)
{
// create a new PolyLines shapefile
hShpLine = ShapeLib.SHPCreate(options.Filename + "-lines", ShapeLib.ShapeType.PolyLine);
if (hShpLine.Equals(IntPtr.Zero))
{
return("Cannot create lines file!");
}
}
if (options.Polygons)
{
// create a new Polygons shapefile
hShpPoly = ShapeLib.SHPCreate(options.Filename + "-polygons", ShapeLib.ShapeType.Polygon);
if (hShpPoly.Equals(IntPtr.Zero))
{
return("Cannot create polygons file!");
}
}
if (options.Points)
{
// create a new Points shapefile
hShpPoint = ShapeLib.SHPCreate(options.Filename + "-points", ShapeLib.ShapeType.Point);
if (hShpPoint.Equals(IntPtr.Zero))
{
return("Cannot create points file!");
}
}
/*iterate through OSM ways*/
foreach (way strada in infile.wayCollection)
{
/*check if the way is closed, set shape type accordingly*/
if (strada.ndCollection[0].reff == strada.ndCollection[strada.ndCollection.Count - 1].reff)
{
shapetype = ShapeLib.ShapeType.Polygon;
}
else
{
shapetype = ShapeLib.ShapeType.PolyLine;
}
x = new double[strada.ndCollection.Count];
y = new double[strada.ndCollection.Count];
/*iterate through all the nodes in the way, set x and y coords*/
int i = 0;
foreach (nd nod in strada.ndCollection)
{
node nodcomplet = infile.nodeCollection.GetByRef(nod.reff);
/*TO DO: Regional settings - to be checked - should be ok now*/
x[i] = double.Parse(nodcomplet.lon, CultureInfo.InvariantCulture);
y[i] = double.Parse(nodcomplet.lat, CultureInfo.InvariantCulture);
nodcomplet.InWay = true;
i++;
}
/*finding way name*/
MetaData elementData = new MetaData();
elementData = extractMetaData(strada);
foreach (tag t in strada.tagCollection)
{
/*just to make sure that all the streets are
* put in the polylines file*/
if ((t.k == "highway") && (shapetype == ShapeLib.ShapeType.Polygon))
{
shapetype = ShapeLib.ShapeType.PolyLine;
areas--;
ways++;
}
/*exception for circular ways: junction:roundabout
* should be marked as polyline, not as polygon*/
if ((t.k == "junction") && (t.v == "roundabout") && (shapetype == ShapeLib.ShapeType.Polygon))
{
shapetype = ShapeLib.ShapeType.PolyLine;
areas--;
ways++;
}
}
/*create object, write it to file and destroy it*/
IntPtr pshpObj = ShapeLib.SHPCreateSimpleObject(shapetype,
strada.ndCollection.Count, x, y, new double[strada.ndCollection.Count]);
int iRet;
if ((shapetype == ShapeLib.ShapeType.PolyLine) && options.Lines)
{
iRet = ShapeLib.SHPWriteObject(hShpLine, -1, pshpObj);
/*add shape meta data to correct list*/
linesData.Add(elementData);
}
else if ((shapetype == ShapeLib.ShapeType.Polygon) && (options.Polygons))
{
iRet = ShapeLib.SHPWriteObject(hShpPoly, -1, pshpObj);
/*add shape meta data to correct list*/
polygonsData.Add(elementData);
}
ShapeLib.SHPDestroyObject(pshpObj);
}
if (options.Points)
{
/*write the nodes that are not part of any way*/
foreach (node nod in infile.nodeCollection)
{
if (!nod.InWay)
{
x = new double[1];
y = new double[1];
/*TO DO: Regional settings - to be checked*/
x[0] = double.Parse(nod.lon, CultureInfo.InvariantCulture);
y[0] = double.Parse(nod.lat, CultureInfo.InvariantCulture);
/*create object, write it to file and destroy it*/
IntPtr pshpObj = ShapeLib.SHPCreateSimpleObject(ShapeLib.ShapeType.Point,
1, x, y, new double[1]);
int iRet = ShapeLib.SHPWriteObject(hShpPoint, -1, pshpObj);
/*finding node meta data*/
MetaData elementData = extractMetaData(nod);
pointsData.Add(elementData);
ShapeLib.SHPDestroyObject(pshpObj);
}
}
}
// free resources and write dbf files
if (options.Polygons)
{
ShapeLib.SHPClose(hShpPoly);
WriteDBF(ShapeLib.ShapeType.Polygon, options.Filename, options.ConvertTags);
writeProjectionFile(options.Filename + "-polygons", options.Projection);
}
if (options.Lines)
{
ShapeLib.SHPClose(hShpLine);
WriteDBF(ShapeLib.ShapeType.PolyLine, options.Filename, options.ConvertTags);
writeProjectionFile(options.Filename + "-lines", options.Projection);
}
if (options.Points)
{
ShapeLib.SHPClose(hShpPoint);
WriteDBF(ShapeLib.ShapeType.Point, options.Filename, options.ConvertTags);
writeProjectionFile(options.Filename + "-points", options.Projection);
}
return("Completed!");
}
public string SaveToShapefile(ConversionOptions options)
{
ShapeLib.ShapeType shapetype;
double[] x, y;
IntPtr hShpPoly = IntPtr.Zero, hShpLine = IntPtr.Zero, hShpPoint = IntPtr.Zero;
linesData = new List<MetaData>();
polygonsData = new List<MetaData>();
pointsData = new List<MetaData>();
if (options.Lines)
{
// create a new PolyLines shapefile
hShpLine = ShapeLib.SHPCreate(options.Filename + "-lines", ShapeLib.ShapeType.PolyLine);
if (hShpLine.Equals(IntPtr.Zero))
return "Cannot create lines file!";
}
if (options.Polygons)
{
// create a new Polygons shapefile
hShpPoly = ShapeLib.SHPCreate(options.Filename + "-polygons", ShapeLib.ShapeType.Polygon);
if (hShpPoly.Equals(IntPtr.Zero))
return "Cannot create polygons file!";
}
if (options.Points)
{
// create a new Points shapefile
hShpPoint = ShapeLib.SHPCreate(options.Filename + "-points", ShapeLib.ShapeType.Point);
if (hShpPoint.Equals(IntPtr.Zero))
return "Cannot create points file!";
}
/*iterate through OSM ways*/
foreach (way strada in infile.wayCollection)
{
/*check if the way is closed, set shape type accordingly*/
if (strada.ndCollection[0].reff == strada.ndCollection[strada.ndCollection.Count - 1].reff)
{
shapetype = ShapeLib.ShapeType.Polygon;
}
else
{
shapetype = ShapeLib.ShapeType.PolyLine;
}
x = new double[strada.ndCollection.Count];
y = new double[strada.ndCollection.Count];
/*iterate through all the nodes in the way, set x and y coords*/
int i = 0;
foreach (nd nod in strada.ndCollection)
{
node nodcomplet = infile.nodeCollection.GetByRef(nod.reff);
/*TO DO: Regional settings - to be checked - should be ok now*/
x[i] = double.Parse(nodcomplet.lon, CultureInfo.InvariantCulture);
y[i] = double.Parse(nodcomplet.lat, CultureInfo.InvariantCulture);
nodcomplet.InWay = true;
i++;
}
/*finding way name*/
MetaData elementData = new MetaData();
elementData = extractMetaData(strada);
foreach (tag t in strada.tagCollection)
{
/*just to make sure that all the streets are
*put in the polylines file*/
if ((t.k == "highway") && (shapetype == ShapeLib.ShapeType.Polygon))
{
shapetype = ShapeLib.ShapeType.PolyLine;
areas--;
ways++;
}
/*exception for circular ways: junction:roundabout
* should be marked as polyline, not as polygon*/
if ((t.k == "junction") && (t.v == "roundabout") && (shapetype == ShapeLib.ShapeType.Polygon))
{
shapetype = ShapeLib.ShapeType.PolyLine;
areas--;
ways++;
}
}
/*create object, write it to file and destroy it*/
IntPtr pshpObj = ShapeLib.SHPCreateSimpleObject(shapetype,
strada.ndCollection.Count, x, y, new double[strada.ndCollection.Count]);
int iRet;
if ((shapetype == ShapeLib.ShapeType.PolyLine) && options.Lines)
{
iRet = ShapeLib.SHPWriteObject(hShpLine, -1, pshpObj);
/*add shape meta data to correct list*/
linesData.Add(elementData);
}
else if ((shapetype == ShapeLib.ShapeType.Polygon) && (options.Polygons))
{
iRet = ShapeLib.SHPWriteObject(hShpPoly, -1, pshpObj);
/*add shape meta data to correct list*/
polygonsData.Add(elementData);
}
ShapeLib.SHPDestroyObject(pshpObj);
}
if (options.Points)
{
/*write the nodes that are not part of any way*/
foreach (node nod in infile.nodeCollection)
{
if (!nod.InWay)
{
x = new double[1];
y = new double[1];
/*TO DO: Regional settings - to be checked*/
x[0] = double.Parse(nod.lon, CultureInfo.InvariantCulture);
y[0] = double.Parse(nod.lat, CultureInfo.InvariantCulture);
/*create object, write it to file and destroy it*/
IntPtr pshpObj = ShapeLib.SHPCreateSimpleObject(ShapeLib.ShapeType.Point,
1, x, y, new double[1]);
int iRet = ShapeLib.SHPWriteObject(hShpPoint, -1, pshpObj);
/*finding node meta data*/
MetaData elementData = extractMetaData(nod);
pointsData.Add(elementData);
ShapeLib.SHPDestroyObject(pshpObj);
}
}
}
// free resources and write dbf files
if (options.Polygons)
{
ShapeLib.SHPClose(hShpPoly);
WriteDBF(ShapeLib.ShapeType.Polygon, options.Filename, options.ConvertTags);
writeProjectionFile(options.Filename + "-polygons", options.Projection);
}
if (options.Lines)
{
ShapeLib.SHPClose(hShpLine);
WriteDBF(ShapeLib.ShapeType.PolyLine, options.Filename, options.ConvertTags);
writeProjectionFile(options.Filename + "-lines", options.Projection);
}
if (options.Points)
{
ShapeLib.SHPClose(hShpPoint);
WriteDBF(ShapeLib.ShapeType.Point, options.Filename, options.ConvertTags);
writeProjectionFile(options.Filename + "-points", options.Projection);
}
return "Completed!";
}
