/// <summary>
/// Writes three geometries to an svg file
/// </summary>
/// <param name="filename">The path of the svg file.</param>
/// <param name="a">The A geometry</param>
/// <param name="b">The B geometry</param>
/// <param name="c">The C geometry</param>
public void DisplayTest(string filename, Geometry a, Geometry b, Geometry c)
{
Geotools.Geometries.PrecisionModel pm = new Geotools.Geometries.PrecisionModel(1, 0, 0);
GeometryFactory fact = new GeometryFactory(pm, 0);
GeometrySVGWriter svgWriter = new GeometrySVGWriter(fact.PrecisionModel);
StreamWriter sw = new StreamWriter(filename);
GeometryCollection geomCollection= fact.CreateGeometryCollection(new Geometry[]{a,b,c});
double minx, miny, maxx, maxy;
geomCollection.Extent2D(out minx, out miny, out maxx, out maxy);
sw.WriteLine(String.Format("<svg viewBox=\"{0} {1} {2} {3}\">",minx,miny,maxx,maxy*1.2));
svgWriter.Write(a,sw,"fill-rule:evenodd;","fill:none;stroke:blue;stroke-width:1;fill-opacity:0.2");
svgWriter.Write(b,sw,"fill-rule:evenodd;","fill:none;stroke:red;stroke-width:1;fill-opacity:0.2");
svgWriter.Write(c,sw,"fill-rule:evenodd;","fill:yellow;stroke:green;stroke-width:2;fill-opacity:0.5;stroke-dasharray:2,2");
sw.WriteLine("</svg>");
sw.Close();
}
private GeometryCollection CreateCollection4()
{
//this is used to prevent having to rewrite this code over & over
//create a new coordinate
Coordinate coordinate = new Coordinate();
//create a new point
GeometryFactory gf = new GeometryFactory(_precMod, _sRID);
Point point = gf.CreatePoint(coordinate);
//create a new geometries array
Geometry[] geom = new Geometry[10];
int c = 0;
//fill with points
for(int i = 9; i < 19 ; i++)
{
//if this isn't here the coordinates for all the points are reset every time the coordinate is reset
coordinate = new Coordinate();
//make the x coordinate equal to the iterator
coordinate.X = (double)i;
//make the y coordinate equal to the iterator plus 10
coordinate.Y = (double)i + 10;
//create a new point to put in the geometry
point = gf.CreatePoint(coordinate);
//put the point in the geometies
geom[c] = point;
c++;
}
//put the geometries into a geometry collection
GeometryCollection geoColl = gf.CreateGeometryCollection(geom);
return geoColl;
}
private GeometryCollection CreateCollection3()
{
//create a new geometries array
Geometry[] geom = new Geometry[10];
Coordinate coordinate = new Coordinate();
Coordinates coords = new Coordinates();
GeometryFactory gf = new GeometryFactory(_precMod, _sRID);
Point point = gf.CreatePoint(coordinate);
LineString lineString = gf.CreateLineString(coords);
for(int c = 0; c < 5; c++)
{
for(int i = c; i < c+5; i++)
{
//if this isn't here the coordinates for all the points are reset every time the coordinate is reset
coordinate = new Coordinate();
//make the x coordinate equal to the iterator
coordinate.X = (double)i;
//make the y coordinate equal to the iterator plus 10
coordinate.Y = (double)i + 10;
coords.Add(coordinate);
}
lineString = gf.CreateLineString(coords);
geom[c] = lineString;
}
for(int i = 5; i < 10; i++)
{
//if this isn't here the coordinates for all the points are reset every time the coordinate is reset
coordinate = new Coordinate();
//make the x coordinate equal to the iterator
coordinate.X = (double)i;
//make the y coordinate equal to the iterator plus 10
coordinate.Y = (double)i + 10;
//create a new point to put in the geometry
point = gf.CreatePoint(coordinate);
//put the point in the geometies
geom[i] = point;
}
//put the geometries into a geometry collection
GeometryCollection geoColl = gf.CreateGeometryCollection(geom);
return geoColl;
}
public void test_NumPoints()
{
//create a geomerty collection
GeometryCollection geoColl = CreateCollection();
Assertion.AssertEquals("NumPoints-1: ", 10, geoColl.GetNumPoints());
//now try it with a null geometry collection
GeometryFactory gf = new GeometryFactory(_precMod, _sRID);
geoColl = gf.CreateGeometryCollection(null);
Assertion.AssertEquals("NumPoints-2: ", 0, geoColl.GetNumPoints());
//now try it with a different geometry collection
geoColl = CreateCollection2();
Assertion.AssertEquals("NumPoints-3: ", 1000, geoColl.GetNumPoints());
//now try it with a mixed geometry collection
geoColl = CreateCollection3();
Assertion.AssertEquals("NumPoints-4: ", 130, geoColl.GetNumPoints());
}
public void test_IsEmpty()
{
//create a geomerty collection
GeometryCollection geoColl = CreateCollection();
Assertion.AssertEquals("IsEmpty()-1: ", false, geoColl.IsEmpty());
//now try it with a null geometry collection
GeometryFactory gf = new GeometryFactory(_precMod, _sRID);
geoColl = gf.CreateGeometryCollection(null);
Assertion.AssertEquals("IsEmpty()-2: ", true, geoColl.IsEmpty());
//now try it with a different geometry collection
geoColl = CreateCollection2();
Assertion.AssertEquals("IsEmpty()-3: ", false, geoColl.IsEmpty());
//now try it with a mixed geometry collection
geoColl = CreateCollection3();
Assertion.AssertEquals("IsEmpty()-4: ", false, geoColl.IsEmpty());
}
public void test_GetBoundaryDimension()
{
//create a geomerty collection
GeometryCollection geoColl = CreateCollection();
Assertion.AssertEquals("GetBoundaryDimension-1: ", -1, geoColl.GetBoundaryDimension());
//now try it with a null geometry collection
GeometryFactory gf = new GeometryFactory(_precMod, _sRID);
geoColl = gf.CreateGeometryCollection(null);
Assertion.AssertEquals("GetBoundaryDimension-2: ", -1, geoColl.GetBoundaryDimension());
//now try it with a different geometry collection
geoColl = CreateCollection2();
Assertion.AssertEquals("GetBoundaryDimension-3: ", 0, geoColl.GetBoundaryDimension());
//now try it with a mixed geometry collection
geoColl = CreateCollection3();
Assertion.AssertEquals("GetBoundryDimension-4: ", 0, geoColl.GetBoundaryDimension());
}
public void test_EqualExact()
{
//create a geomerty collection
GeometryCollection geoColl1 = CreateCollection();
//create another geometry collection that is null
GeometryFactory gf = new GeometryFactory(_precMod, _sRID);
GeometryCollection geoColl2 = gf.CreateGeometryCollection(null);
//create another geometry collection that is different
GeometryCollection geoColl3 = CreateCollection2();
//create another geometry collection that is different
GeometryCollection geoColl4 = CreateCollection3();
//create another geometry collection that is the same as the first
GeometryCollection geoColl5 = CreateCollection();
Assertion.AssertEquals("Equals-1: ", true , geoColl1.Equals(geoColl5));
Assertion.AssertEquals("Equals-2: ", false, geoColl1.Equals(geoColl2));
Assertion.AssertEquals("Equals-3: ", false, geoColl1.Equals(geoColl3));
Assertion.AssertEquals("Equals-4: ", false, geoColl1.Equals(geoColl4));
}
public void test_Dimension()
{
//create a geomerty collection
GeometryCollection geoColl = CreateCollection();
//returns 0 because a point has a dimension of 0 & that is the largest dimesion in the collection
Assertion.AssertEquals("Dimension-1: ", 0, geoColl.GetDimension());
//now try it with a null geometry collection
GeometryFactory gf = new GeometryFactory(_precMod, _sRID);
geoColl = gf.CreateGeometryCollection(null);
//returns -1 because the collection is empty
Assertion.AssertEquals("Dimension-2: ", -1, geoColl.GetDimension());
//now try it with a different geometry collection
geoColl = CreateCollection2();
//returns 1 because linestring has a dimension of 1 & that is the largest dimension in the collection
Assertion.AssertEquals("Dimension-3: ", 1, geoColl.GetDimension());
//returns 1 because linestring has a dimension of 1 & that is the largest dimension in the collection
geoColl = CreateCollection3();
Assertion.AssertEquals("Dimension-4: ", 1, geoColl.GetDimension());
}
public void test_Count()
{
//create a geomerty collection
GeometryCollection geoColl = CreateCollection();
Assertion.AssertEquals("Count-1: ", 10, geoColl.Count);
//now try it with a null geometry collection
GeometryFactory gf = new GeometryFactory(_precMod, _sRID);
geoColl = gf.CreateGeometryCollection(null);
Assertion.AssertEquals("Count-2: ", 0, geoColl.Count);
//now try it with a different geometry collection
geoColl = CreateCollection2();
Assertion.AssertEquals("Count-3: ", 10, geoColl.Count);
//now try it with a mixed geometry collection
geoColl = CreateCollection3();
Assertion.AssertEquals("Count-4: ", 10, geoColl.Count);
}
public void test_Coordinates()
{
//create a geomerty collection
GeometryCollection geoColl = CreateCollection();
//this geometry conatins 10 sets of coordinates
Assertion.AssertEquals("Coordinates-1: ", 10, geoColl.GetCoordinates().Count);
//now try it with a null geometry collection
GeometryFactory gf = new GeometryFactory(_precMod, _sRID);
geoColl = gf.CreateGeometryCollection(null);
Assertion.AssertEquals("Coordinates-2: ", 0, geoColl.GetCoordinates().Count);
//now try it with a different geometry collection
geoColl = CreateCollection2();
//1000 sets of coordinates
Assertion.AssertEquals("Cordinates-3: ", 1000, geoColl.GetCoordinates().Count);
//now try it with a mixed geometry collection
geoColl = CreateCollection3();
Assertion.AssertEquals("Coordinates-4: ", 130, geoColl.GetCoordinates().Count);
}
public void test_CompareToSameClass()
{
//create a geometry collection
GeometryCollection geoColl1 = CreateCollection();
//create another geometry collection
GeometryCollection geoColl2 = CreateCollection1();
//create another geometry collection
GeometryCollection geoColl3 = CreateCollection4();
GeometryFactory gf = new GeometryFactory(_precMod, _sRID);
GeometryCollection geoColl4 = gf.CreateGeometryCollection(null);
Assertion.AssertEquals("CompareToSameClass1: ", 0, geoColl1.CompareToSameClass(geoColl1));
Assertion.AssertEquals("CompareToSameClass2: ", -1, geoColl1.CompareToSameClass(geoColl3));
Assertion.AssertEquals("CompareToSameClass3: ", 1, geoColl3.CompareToSameClass(geoColl1));
Assertion.AssertEquals("CompareToSameClass4: ", -1, geoColl4.CompareToSameClass(geoColl1));
}
