Find service areas for multiple facilities

network_analysis/find-service-areas-for-multiple-facilities/README.md

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+# Find service areas for multiple facilities
+
+Find the service areas of several facilities from a feature service.
+
+![](FindServiceAreasForMultipleFacilities.png)
+
+## Use case
+
+A city taxi company may calculate service areas around their vehicle lots to identify gaps in coverage. Alternatively, they may want to ensure overlaps where a high volume of passengers requires redundant facilities, such as near an airport.
+
+## How to use the sample
+
+Click 'find service areas' to calculate and display the service area of each facility (hospital) on the map. The polygons displayed around each facility represents the facility's service area: the red area is within 1 minute travel time from the hospital by car, whilst orange is within 3 minutes by car. All service areas are semi-transparent to show where they overlap.
+
+## How it works
+
+1. Create a new `ServiceAreaTask` from a network service.
+2. Create default `ServiceAreaParameters` from the service area task.
+3. Set the parameters `ServiceAreaParameters.setReturnPolygons(true)` to return polygons of all service areas.
+4. Define `QueryParameters` that retrieve all `Facility` items from a `FacilitiesFeatureTable`. Add the facilities to the service area parameters using the query parameters, `serviceAreaParameters.SetFacilities(facilitiesTable, queryParameters).`
+5. Get the `ServiceAreaResult` by solving the service area task using the parameters.
+6. For each facility, get any `ServiceAreaPolygons` that were returned, `serviceAreaResult.getResultPolygons(facilityIndex)`.
+7. Display the service area polygons as `Graphics` in a `GraphicsOverlay` on the `MapView`.
+
+## About the data
+
+This sample uses a street map of San Diego, in combination with a feature service with facilities (used here to represent hospitals). Additionally a street network is used on the server for calculating the service area.
+
+## Relevant API
+
+* ServiceAreaParameters
+* ServiceAreaPolygon
+* ServiceAreaResult
+* ServiceAreaTask
+
+## Tags
+
+facilities, feature service, impedance, network analysis, service area, travel time

network_analysis/find-service-areas-for-multiple-facilities/build.gradle

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+plugins {
+    id 'application'
+    id 'org.openjfx.javafxplugin' version '0.0.5'
+    id "de.undercouch.download" version "3.4.3"
+}
+
+import de.undercouch.gradle.tasks.download.Download
+
+group = 'com.esri.samples'
+
+ext {
+    arcgisVersion = '100.5.0'
+}
+
+javafx {
+    version = "11.0.1"
+    modules = [ 'javafx.controls' ]
+}
+
+compileJava.options.encoding = 'UTF-8'
+
+repositories {
+    jcenter()
+    maven {
+        url 'https://esri.bintray.com/arcgis'
+    }
+    maven {
+        url 'http://olympus.esri.com/artifactory/arcgisruntime-repo'
+    }
+}
+
+configurations {
+    natives
+}
+
+dependencies {
+    compile "com.esri.arcgisruntime:arcgis-java:$arcgisVersion"
+    natives "com.esri.arcgisruntime:arcgis-java-jnilibs:$arcgisVersion"
+    natives "com.esri.arcgisruntime:arcgis-java-resources:$arcgisVersion"
+}
+
+task downloadData(type: Download) {
+    src "https://arcgisruntime.maps.arcgis.com/sharing/rest/content/items/567e14f3420d40c5a206e5c0284cf8fc/data"
+    dest 'build/data.zip'
+    overwrite false
+}
+
+task unpackData(type: Copy) {
+    dependsOn downloadData
+    from zipTree(downloadData.dest)
+    into './samples-data/sandiego'
+}
+
+task copyNatives(type: Copy) {
+    description = "Copies the arcgis native libraries into the project build directory for development."
+    group = "build"
+    configurations.natives.asFileTree.each {
+        from(zipTree(it))
+    }
+    // store native libraries in a common location shared with other samples
+    into "${System.properties.getProperty("user.home")}/.arcgis/$arcgisVersion"
+}
+
+run {
+    dependsOn copyNatives, unpackData
+    mainClassName = 'com.esri.samples.find_service_areas_for_multiple_facilities.FindServiceAreasForMultipleFacilitiesLauncher'
+}
+
+jar {
+    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+    manifest {
+        attributes("Main-Class": "$mainClassName")
+    }
+    from {
+        configurations.compile.collect { it.isDirectory() ? it : zipTree(it) }
+    }
+}
+
+task productionZip(type: Zip) {
+    group = 'distribution'
+    from (unpackData) {
+        into "samples-data"
+    }
+    from copyNatives
+    from jar.destinationDir
+    into (project.name)
+    baseName = project.name
+}
+
+wrapper {
+    gradleVersion = '5.0'
+}

network_analysis/find-service-areas-for-multiple-facilities/gradle/wrapper/gradle-wrapper.properties

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+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.0-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

network_analysis/find-service-areas-for-multiple-facilities/gradlew

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+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"

network_analysis/find-service-areas-for-multiple-facilities/gradlew.bat

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+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

network_analysis/find-service-areas-for-multiple-facilities/settings.gradle

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+rootProject.name = 'find-service-areas-for-multiple-facilities'