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蒋波涛 / tianditudownloader

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05db60ef by chiangbt
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update 3.27

1 parent b5905b49
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Showing 3 changed files with 64 additions and 20 deletions
import utils.CalEnv;
import utils.Point;
import utils.TianDiTuTiledMapServiceType;
......
......@@ -20,7 +20,7 @@ public class TiandituDownload {
int[] level = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20};
// 分辨率
double[] res = {
double[] res4490 = {
1.40625,
0.703125,
0.3515625,
......@@ -44,7 +44,7 @@ public class TiandituDownload {
1.34110450744629E-06
};
// 比例尺
double[] scale = {
double[] scale4490 = {
400000000,
295497598.5708346,
147748799.285417,
......@@ -67,6 +67,47 @@ public class TiandituDownload {
1127.2338812669175,
563.61694063345875
};
double[] scale3857 = {
295829355.45,
147914677.73,
73957338.86,
36978669.43,
18489334.72,
9244667.36,
4622333.68,
2311166.84,
1155583.42,
577791.71,
288895.85,
144447.93,
72223.96,
36111.98,
18055.99,
9028,
4514,
2257};
double[] res3857 = {
0.70391441567318025,
0.35195720784848739,
0.1759786039123464,
0.087989301956173202,
0.043994650989983904,
0.021997325494991952,
0.010998662747495976,
0.005499331373747988,
0.002749665686873994,
0.001374832843436997,
0.00068741640982119352,
0.00034370821680790179,
0.00017185409650664589,
8.5927048253322947e-005,
4.2963524126661473e-005,
2.1481773960635764e-005,
1.0740886980317882e-005,
5.3704434901589409e-006};
// 最小级别
int minLevel = 1;
......@@ -80,19 +121,22 @@ public class TiandituDownload {
Connection conn = null;
Statement stmt = null;
public TiandituDownload() {
}
public TiandituDownload(String dbpath) {
this.dbpath = dbpath;
}
/**
*
* @param originPoint 坐标点
* @param level 级别
* @return 改点在该级别所属的地图瓦片行列号
* @param level 级别
* @return 改点在该级别所属的地图瓦片行列号(4490)
*/
private CalEnv calculateEnv(Point originPoint, int level) {
int startX = (int) Math.floor((originPoint.getLng() + 180) / (256 * res[level]));
int startY = (int) Math.floor((90 - originPoint.getLat()) / (256 * res[level]));
private CalEnv calculateEnv4490(Point originPoint, int level) {
int startX = (int) Math.floor((originPoint.getLng() + 180) / (256 * res4490[level]));
int startY = (int) Math.floor((90 - originPoint.getLat()) / (256 * res4490[level]));
if (startX < 0) startX = 0;
if (startY < 0) startY = 0;
......@@ -100,18 +144,17 @@ public class TiandituDownload {
}
/**
*
* @param minPoint 下载范围左下角坐标
* @param maxPoint 下载范围右上角坐标
* @param level 下载级别
* @param type 下载数据类型
* @param merge 数据与其注记是否融合
* @param maxPoint 下载范围右上角坐标
* @param level 下载级别
* @param type 下载数据类型
* @param merge 数据与其注记是否融合
*/
private void downloadSingLevelTiles(Point minPoint, Point maxPoint, int level, TianDiTuTiledMapServiceType type, boolean merge) {
try {
CalEnv startEnv = calculateEnv(minPoint, level);
CalEnv stopEnv = calculateEnv(maxPoint, level);
CalEnv startEnv = calculateEnv4490(minPoint, level);
CalEnv stopEnv = calculateEnv4490(maxPoint, level);
PreparedStatement preparedStatement;
ResultSet rs;
......@@ -179,13 +222,12 @@ public class TiandituDownload {
}
/**
*
* @param minPoint 下载范围左下角坐标
* @param maxPoint 下载范围右上角坐标
* @param minLevel 下载最小级别
* @param maxLevel 下载最大级别
* @param type 下载数据类型
* @param merge 数据与其注记是否融合
* @param minLevel 下载最小级别
* @param maxLevel 下载最大级别
* @param type 下载数据类型
* @param merge 数据与其注记是否融合
* @throws SQLException
*/
public void Download(Point minPoint, Point maxPoint, int minLevel, int maxLevel, TianDiTuTiledMapServiceType type, boolean merge) throws SQLException {
......@@ -216,6 +258,7 @@ public class TiandituDownload {
/**
* 下载网络数据
*
* @param url
* @return 图片数据流
* @throws Exception
......