private static void WritePolygonRecord(string path, List <Shape> shapes)
{
using (FileStream fs = new FileStream(path, FileMode.Append))
{
FileWriter fw = new FileWriter(fs);
Dictionary <int, int> index = new ShxFile(path.Replace(Path.GetExtension(path), "") + ".shx").ReadContent();
int number = 0;
foreach (var item in index)
{
fw.WriteReverseInt(item.Key, ++number);
fw.WriteReverseInt(item.Key + 4, item.Value);
fw.WriteInt(item.Key + 8, 3);
BoundingBox box = BoundingBox.GetBoundingBox(shapes[number - 1]);
fw.WriteDouble(item.Key + 12, box.XMin);
fw.WriteDouble(item.Key + 20, box.XMax);
fw.WriteDouble(item.Key + 28, box.YMin);
fw.WriteDouble(item.Key + 36, box.YMax);
fw.WriteInt(item.Key + 44, 1);
fw.WriteInt(item.Key + 48, shapes[number - 1].Vertexes.Count);
fw.WriteInt(item.Key + 52, 0);
for (int i = 0; i < shapes[number - 1].Vertexes.Count; i++)
{
fw.WriteDouble(item.Key + 56 + i * 16, shapes[number - 1].Vertexes[i].X);
fw.WriteDouble(item.Key + 64 + i * 16, shapes[number - 1].Vertexes[i].Y);
}
}
}
}
protected static void WritePointRecord(string path, List <Shape> shapes)
{
using (FileStream fs = new FileStream(path, FileMode.Append))
{
FileWriter fw = new FileWriter(fs);
for (int i = 0; i < shapes.Count; i++)
{
fw.WriteReverseInt(100 + i * 8, (100 + i * 28) / 2);
fw.WriteReverseInt(104 + i * 8, 10);
}
}
}
protected static void WritePolyLineRecord(string path, List <Shape> shapes)
{
using (FileStream fs = new FileStream(path, FileMode.Append))
{
FileWriter fw = new FileWriter(fs);
int offset = 0;
for (int i = 0; i < shapes.Count; i++)
{
fw.WriteReverseInt(100 + i * 8, (100 + offset) / 2);
offset += 44 + 4 + 16 * shapes[i].Vertexes.Count + 8;
fw.WriteReverseInt(104 + i * 8, (44 + 4 + 16 * shapes[i].Vertexes.Count) / 2);
}
}
}
private static void WritePointRecord(string path, List <Shape> shapes)
{
using (FileStream fs = new FileStream(path, FileMode.Append))
{
FileWriter fw = new FileWriter(fs);
for (int i = 0; i < shapes.Count; i++)
{
fw.WriteReverseInt(100 + i * 28, i + 1);
fw.WriteReverseInt(104 + i * 28, 10);
fw.WriteInt(108 + i * 28, 1);
fw.WriteDouble(112 + i * 28, shapes[i].Vertexes[0].X);
fw.WriteDouble(120 + i * 28, shapes[i].Vertexes[0].Y);
}
}
}
protected static void WriteHeader(string path, BoundingBox boundingBox, List <Shape> shapes)
{
using (FileStream fs = new FileStream(path, FileMode.Create))
{
FileWriter fw = new FileWriter(fs);
//Write header
//Write file code
fw.WriteReverseInt(0, 9994);
//Write unused fields
for (int i = 0; i < 4; i++)
{
fw.WriteReverseInt(i * 4 + 4, 0);
}
//Write file length
int fileLength = (100 + 8 * shapes.Count) / 2;
fw.WriteReverseInt(24, fileLength);
//Write version
fw.WriteInt(28, 1000);
//Write shape type
if (shapes == null)
{
fw.WriteInt(32, 0);
}
else
{
fw.WriteInt(32, (int)shapes[0].Type);
}
//Write bounding box
fw.WriteDouble(36, boundingBox.XMin);
fw.WriteDouble(44, boundingBox.YMin);
fw.WriteDouble(52, boundingBox.XMax);
fw.WriteDouble(60, boundingBox.YMax);
fw.WriteDouble(68, 0);
fw.WriteDouble(76, 0);
fw.WriteDouble(84, 0);
fw.WriteDouble(92, 0);
}
}
protected static void WriteHeader(string path, BoundingBox boundingBox, List <Shape> shapes)
{
using (FileStream fs = new FileStream(path, FileMode.Create))
{
FileWriter fw = new FileWriter(fs);
//Write header
//Write file code
fw.WriteReverseInt(0, 9994);
//Write unused fields
for (int i = 0; i < 4; i++)
{
fw.WriteReverseInt(i * 4 + 4, 0);
}
//Write file length
int fileLength = 100;
switch (shapes[0].Type)
{
case ShapeType.NullType:
break;
case ShapeType.Point:
fileLength += shapes.Count * 28;
break;
case ShapeType.PolyLine:
for (int i = 0; i < shapes.Count; i++)
{
fileLength += 44 + 4 + 16 * shapes[i].Vertexes.Count + 8;
}
break;
case ShapeType.Polygon:
break;
default:
break;
}
fw.WriteReverseInt(24, fileLength / 2);
//Write version
fw.WriteInt(28, 1000);
//Write shape type
if (shapes == null)
{
fw.WriteInt(32, 0);
}
else
{
fw.WriteInt(32, (int)shapes[0].Type);
}
//Write bounding box
fw.WriteDouble(36, boundingBox.XMin);
fw.WriteDouble(44, boundingBox.YMin);
fw.WriteDouble(52, boundingBox.XMax);
fw.WriteDouble(60, boundingBox.YMax);
fw.WriteDouble(68, 0);
fw.WriteDouble(76, 0);
fw.WriteDouble(84, 0);
fw.WriteDouble(92, 0);
}
}
