From 784d8511419029d78843d1c0d98bbb135788f4e1 Mon Sep 17 00:00:00 2001
From: 13693261870 <252740454@qq.com>
Date: 星期一, 12 六月 2023 17:28:15 +0800
Subject: [PATCH] 读取GDB数据库的接口添加坐标转换功能
---
src/main/java/com/lf/server/helper/GdbHelper.java | 83 +++++++++++++++++++++++++++++------------
1 files changed, 58 insertions(+), 25 deletions(-)
diff --git a/src/main/java/com/lf/server/helper/GdbHelper.java b/src/main/java/com/lf/server/helper/GdbHelper.java
index b6120b1..dd6f337 100644
--- a/src/main/java/com/lf/server/helper/GdbHelper.java
+++ b/src/main/java/com/lf/server/helper/GdbHelper.java
@@ -8,7 +8,9 @@
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.gdal.ogr.*;
+import org.gdal.osr.CoordinateTransformation;
import org.gdal.osr.SpatialReference;
+import org.gdal.osr.osr;
import java.lang.reflect.Field;
import java.math.BigDecimal;
@@ -155,6 +157,8 @@
return;
}
+ CoordinateTransformation ct = getCoordinateTransformation(layer, isTransform);
+
do {
Feature f = layer.GetNextFeature();
if (null == f) {
@@ -162,7 +166,7 @@
}
T t = (T) clazz.newInstance();
- readFeature(t, f, map, gField);
+ readFeature(t, f, map, gField, ct);
list.add(t);
} while (true);
} catch (Exception ex) {
@@ -170,6 +174,33 @@
} finally {
GdbHelper.delete(layer);
}
+ }
+
+ /**
+ * 鑾峰彇鍧愭爣杞崲鍣�
+ */
+ private static CoordinateTransformation getCoordinateTransformation(Layer layer, boolean isTransform) {
+ if (!isTransform) {
+ return null;
+ }
+
+ String epsg = layer.GetSpatialRef().GetAttrValue("AUTHORITY", 1);
+ if (StringHelper.isEmpty(epsg)) {
+ return null;
+ }
+
+ int epsgId = Integer.parseInt(epsg);
+ if (StaticData.I4326 == epsgId || StaticData.I4490 == epsgId) {
+ return null;
+ }
+
+ SpatialReference srTarget = new SpatialReference();
+ srTarget.ImportFromEPSG(StaticData.I4490);
+
+ layer.GetSpatialRef().SetAxisMappingStrategy(osr.OAMS_TRADITIONAL_GIS_ORDER);
+ srTarget.SetAxisMappingStrategy(osr.OAMS_TRADITIONAL_GIS_ORDER);
+
+ return CoordinateTransformation.CreateCoordinateTransformation(layer.GetSpatialRef(), srTarget);
}
/**
@@ -213,14 +244,14 @@
getFieldMapper(clazz.getSuperclass(), layer, map);
}
} catch (Exception ex) {
- //
+ log.error(ex);
}
}
/**
* 璇诲彇Feature
*/
- private static <T> void readFeature(T t, Feature f, Map<Integer, Field> map, Field gField) {
+ private static <T> void readFeature(T t, Feature f, Map<Integer, Field> map, Field gField, CoordinateTransformation ct) {
for (Integer i : map.keySet()) {
try {
Field field = map.get(i);
@@ -231,7 +262,7 @@
}
if (null != gField) {
- setGeom(t, f, gField);
+ setGeom(t, gField, f.GetGeometryRef(), ct);
}
}
@@ -288,30 +319,32 @@
* wkbNone = 100,
* wkbLinearRing = 101
*/
- private static <T> void setGeom(T t, Feature f, Field gField) {
+ private static <T> void setGeom(T t, Field gField, Geometry geometry, CoordinateTransformation ct) {
try {
- String geo = "null";
- if (null != f.GetGeometryRef()) {
- String wkt = f.GetGeometryRef().ExportToWkt();
- // f.GetGeometryRef().GetGeometryType()
- if (wkt.contains(StaticData.LINESTRING) && !wkt.contains(StaticData.MULTILINESTRING)) {
- wkt = wkt.replace("LINESTRING (", "MULTILINESTRING ((") + ")";
- }
- if (wkt.contains(StaticData.POLYGON) && !wkt.contains(StaticData.MULTIPOLYGON)) {
- wkt = wkt.replace("POLYGON (", "MULTIPOLYGON ((") + ")";
- }
- wkt = wkt.replace(" 0,", ",").replace(" 0)", ")");
- if (wkt.contains(StaticData.MULTICURVE)) {
- wkt = wkt.replace("MULTICURVE (", "MULTILINESTRING (").replace("CIRCULARSTRING ", "");
- if (wkt.contains(StaticData.COMPOUNDCURVE)) {
- wkt = wkt.replace("COMPOUNDCURVE (", "").replace(")))", "))");
- }
- }
-
- geo = String.format("ST_GeomFromText('%s')", wkt);
+ if (null == geometry) {
+ gField.set(t, "null");
+ return;
+ }
+ if (null != ct) {
+ int flag = geometry.Transform(ct);
}
- gField.set(t, geo);
+ String wkt = geometry.ExportToWkt();
+ if (wkt.contains(StaticData.LINESTRING) && !wkt.contains(StaticData.MULTILINESTRING)) {
+ wkt = wkt.replace("LINESTRING (", "MULTILINESTRING ((") + ")";
+ }
+ if (wkt.contains(StaticData.POLYGON) && !wkt.contains(StaticData.MULTIPOLYGON)) {
+ wkt = wkt.replace("POLYGON (", "MULTIPOLYGON ((") + ")";
+ }
+ wkt = wkt.replace(" 0,", ",").replace(" 0)", ")");
+ if (wkt.contains(StaticData.MULTICURVE)) {
+ wkt = wkt.replace("MULTICURVE (", "MULTILINESTRING (").replace("CIRCULARSTRING ", "");
+ if (wkt.contains(StaticData.COMPOUNDCURVE)) {
+ wkt = wkt.replace("COMPOUNDCURVE (", "").replace(")))", "))");
+ }
+ }
+
+ gField.set(t, String.format("ST_GeomFromText('%s')", wkt));
} catch (Exception ex) {
log.error(ex.getMessage(), ex);
}
--
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