VenuReddy2103 commented on a change in pull request #3436: [CARBONDATA-3548]Geospatial Support: Modified to create and load the table with a nonschema dimension sort column. And added InPolygon UDF
URL:
https://github.com/apache/carbondata/pull/3436#discussion_r349878730
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File path: core/src/main/java/org/apache/carbondata/core/util/GeoHashDefault.java
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@@ -0,0 +1,255 @@
+package org.apache.carbondata.core.util;
+
+import org.apache.carbondata.common.exceptions.sql.MalformedCarbonCommandException;
+import org.apache.carbondata.core.constants.CarbonCommonConstants;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+public class GeoHashDefault implements CustomIndex<Long, String, List<Long[]>> {
+ // 角度转弧度的转换因子
+ private final static double CONVERT_FACTOR = 180.0;
+ // 地球半径
+ private final static double EARTH_RADIUS = 6371004.0;
+
+ private static double transValue = Math.PI / CONVERT_FACTOR * EARTH_RADIUS; // 赤道经度1度或者纬度1度对应的地理空间距离
+
+ private double oriLongitude = 0; // 坐标原点的经度
+
+ private double oriLatitude = 0; // 坐标原点的纬度
+
+ private double userDefineMaxLongitude = 0; // 用户定义地图最大的经度
+
+ private double userDefineMaxLatitude = 0; // 用户定义地图最大的纬度
+
+ private double userDefineMinLongitude = 0; // 用户定义地图最小的经度
+
+ private double userDefineMinLatitude = 0; // 用户定义地图最小的纬度
+
+ private double CalculateMaxLongitude = 0; // 计算后得出的补齐地图最大的经度
+
+ private double CalculateMaxLatitude = 0; // 计算后得出的补齐地图最大的纬度
+
+ private int gridSize = 0; //栅格长度单位是米
+
+ private double mCos; // 坐标原点纬度的余玄数值
+
+ private double deltaY = 0; // 每一个gridSize长度对应Y轴的度数
+
+ private double deltaX = 0; // 每一个gridSize长度应X轴的度数
+
+ private double deltaYByRatio = 0; // 每一个gridSize长度对应Y轴的度数 * 系数
+
+ private double deltaXByRatio = 0; // 每一个gridSize长度应X轴的度数 * 系数
+
+ private int cutLevel = 0; // 对整个区域切的刀数（一横一竖为1刀），就是四叉树的深度
+
+ private int totalRowNumber = 0; // 整个区域的行数，从左上开始到右下
+
+ private int totalCloumnNumber = 0; // 整个区域的列数，从左上开始到右下
+
+ private int udfRowStartNumber = 0; // 用户定义区域的开始行数
+
+ private int udfRowEndNumber = 0; // 用户定义区域的结束的行数
+
+ private int udfCloumnStartNumber = 0; // 用户定义区域的开始列数
+
+ private int udfCloumnEndNumber = 0; // 用户定义区域的开始结束列数
+
+ private double lon0 = 0; // 栅格最小数值的经度坐标,最小栅格坐标是扩展区域最左上角的经纬度坐标
+
+ private double lat0 = 0; // 栅格最小数值的纬度坐标,最小栅格坐标是扩展区域最左上角的经纬度坐标
+
+ private double lon0ByRation = 0; // *系数的常量
+ private double lat0ByRation = 0; // *系数的常量
+
+ private int conversionRatio = 1; // 系数，用于将double类型的经纬度，转换成int类型后计算
+
+
+ @Override
+ public void validateOption(Map<String, String> properties) throws Exception {
+ String option = properties.get(CarbonCommonConstants.INDEX_HANDLER);
+ if (option == null || option.isEmpty()) {
+ throw new MalformedCarbonCommandException(
+ String.format("%s property is invalid.", CarbonCommonConstants.INDEX_HANDLER));
+ }
+
+ String commonKey = "." + option + ".";
Review comment:
Ok. Removed blank lines in the complete PR.
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