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The Esri Geometry API for Java enables developers to write custom applications for analysis of spatial data.
/*
Copyright 1995-2015 Esri
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
For additional information, contact:
Environmental Systems Research Institute, Inc.
Attn: Contracts Dept
380 New York Street
Redlands, California, USA 92373
email: [email protected]
*/
package com.esri.core.geometry;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
public final class Wkid {
static ArrayList readTolerances(String resourceName) {
try {
ArrayList tolerances = new ArrayList();
InputStream input = Wkid.class.getResourceAsStream(resourceName);
BufferedReader reader = new BufferedReader(new InputStreamReader(
input));
while (true) {
String s = reader.readLine();
if (s == null)
break;
int sep = s.indexOf('\t', 0);
String id_s = s.substring(0, sep);
int tol_index = Integer.parseInt(id_s);
if (tol_index != tolerances.size())
throw new IllegalArgumentException("Wkid.readTolerances");
String tol_val = s.substring(sep + 1, s.length());
tolerances.add(Double.parseDouble(tol_val));
}
return tolerances;
} catch (IOException ex) {
}
return null;
}
static HashMap readToleranceMap(String resourceName) {
try {
HashMap hashMap = new HashMap(
600);
InputStream input = Wkid.class.getResourceAsStream(resourceName);
BufferedReader reader = new BufferedReader(new InputStreamReader(
input));
while (true) {
String s = reader.readLine();
if (s == null)
break;
int sep = s.indexOf('\t', 0);
String id_s = s.substring(0, sep);
int wkid = Integer.parseInt(id_s);
String id_t = s.substring(sep + 1, s.length());
int tol = Integer.parseInt(id_t);
hashMap.put(wkid, tol);
}
return hashMap;
} catch (IOException ex) {
}
return null;
}
static ArrayList m_gcs_tolerances = readTolerances("gcs_tolerances.txt");
static ArrayList m_pcs_tolerances = readTolerances("pcs_tolerances.txt");
static HashMap m_gcsToTol = readToleranceMap("gcs_id_to_tolerance.txt");
static HashMap m_pcsToTol = readToleranceMap("pcs_id_to_tolerance.txt");
static HashMap m_wkid_to_new;
static HashMap m_wkid_to_old;
static {
try {
m_wkid_to_new = new HashMap(100);
m_wkid_to_old = new HashMap(100);
{
InputStream input = Wkid.class
.getResourceAsStream("new_to_old_wkid.txt");
BufferedReader reader = new BufferedReader(
new InputStreamReader(input));
while (true) {
String s = reader.readLine();
if (s == null)
break;
s = s.trim();
if (s.length() == 0)
continue;
int sep = s.indexOf('\t', 0);
String id_s = s.substring(0, sep);
int wkid_new = Integer.parseInt(id_s);
String id_t = s.substring(sep + 1, s.length());
int wkid_old = Integer.parseInt(id_t);
m_wkid_to_new.put(wkid_old, wkid_new);
m_wkid_to_old.put(wkid_new, wkid_old);
}
}
{
InputStream input = Wkid.class
.getResourceAsStream("intermediate_to_old_wkid.txt");
BufferedReader reader = new BufferedReader(
new InputStreamReader(input));
while (true) {
String s = reader.readLine();
if (s == null)
break;
s = s.trim();
if (s.length() == 0)
continue;
int sep = s.indexOf('\t', 0);
String id_s = s.substring(0, sep);
int wkid = Integer.parseInt(id_s);
String id_t = s.substring(sep + 1, s.length());
int wkid_old = Integer.parseInt(id_t);
m_wkid_to_old.put(wkid, wkid_old);
m_wkid_to_new.put(wkid, m_wkid_to_new.get(wkid_old));
}
}
} catch (IOException ex) {
}
}
public static double find_tolerance_from_wkid(int wkid) {
double tol = find_tolerance_from_wkid_helper(wkid);
if (tol == 1e38) {
int old = wkid_to_old(wkid);
if (old != wkid)
tol = find_tolerance_from_wkid_helper(old);
if (tol == 1e38)
return 1e-10;
}
return tol;
}
private static double find_tolerance_from_wkid_helper(int wkid) {
if (m_gcsToTol.containsKey(wkid)) {
return m_gcs_tolerances.get(m_gcsToTol.get(wkid));
}
if (m_pcsToTol.containsKey(wkid)) {
return m_pcs_tolerances.get(m_pcsToTol.get(wkid));
}
return 1e38;
}
public static int wkid_to_new(int wkid) {
if (m_wkid_to_new.containsKey(wkid)) {
return m_wkid_to_new.get(wkid);
}
return wkid;
}
public static int wkid_to_old(int wkid) {
if (m_wkid_to_old.containsKey(wkid)) {
return m_wkid_to_old.get(wkid);
}
return wkid;
}
}