Routing.Router

Constructor

Routing.Router

This is the main entry point to the API. Your code should create an instance of this class and call one of its methods to calculate a path.

The network will remain loaded for the lifetime of the object so, when calculating multiple paths, the same instance should be reused to avoid unnecessary reloads.

The methods of the Routing.Router class return an instance of the Routing.Path class.

Note

This function requires a HERE streets layer included with a Maptitude Country Package. For a list of available Country packages, please visit https://www2.caliper.com/store/product/maptitude-country-package/HERE country packages

Properties

Name	Type	Contents
Minimize	string	The variable to minimize when calculating paths, either "Time" (the default) or "Distance"
StartTime	datetime	Driving start time. Default is 9 AM
EndTime	datetime	Driving end time. Default is 5 PM
Flexibility	numeric	Default value is 15, Cushion time
NoNightBreak	boolean	If true, no nigh breaks are computed. Default is false.
TimeBetweenRests	numeric	Default value is 240, Max driving time before a break
DefaultStopTime	numeric	Default value is 30, Default stay time for each stop
RestStopDuration	numeric	Default value is 15
FuelConsumptionCity	numeric	Default value is 17, FuelConsumptionCity consumption, in MPG
FuelConsumptionHighway	numeric	Default value is 23
FuelPrice	numeric	Default value is 3.0, Price of fuel in currency and tank units
FixedDrivingCost	numeric	Default value is 0.2, Monetary cost per mile/km
IncludeRestStops	boolean	Default value is false, Rest after driving for some hours
useStopTime	boolean	Default value is false, all stop time for all stops
ReportStreetNameField	string	Optional. Name of a custom field in the streets layer to be used for directions report
DistanceBasedCostCalculation	string	Default is false. If true calculate cost based on fixed per distance value otherwise based on fuel consumption
FuelTankUnits	string	US Gallons, UK Gallons, Liters
FuelConsumptionHighway	string	Highway Fuel Consumption in units of fuel units
FuelConsumptionCity	string	City Fuel Consumption in units of fuel units
TimeBetweenRests	int	Max driving time before a break. Default value is 240 min
SkipDirectionGeneration	boolean	If true, then do not generate directions report information
SkipPathDisplay	boolean	If true, no path annotation will be generated
SingleThreaded	boolean	If true, shortest path will be run in single threaded mode
AllowDuplicateStops	boolean	Default is false. If true, allow multiple stops ant same coordinate
MajorHighwaySpeedLevel	int	Optional. Default value is 4. Defines speed level from 1 to 7, slow to fast
SecondaryHighwaySpeedLevel	int	Optional. Default value is 4. Defines speed level from 1 to 7, slow to fast
LocalHighwaySpeedLevel	int	Optional. Default value is 4. Defines speed level from 1 to 7, slow to fast
ArterialSpeedLevel	int	Optional. Default value is 4. Defines speed level from 1 to 7, slow to fast
LocalRoadSpeedLevel	int	Optional. Default value is 4. Defines speed level from 1 to 7, slow to fast

Methods

Calculate(array Points, array opts)

Calculates the path between an array of Points with the options.

Option		Type	Description
Points
	Coordinate	coord	Point coordinate
	DepartureTime	int	Departure time
	ArrivalTime	int	Arrival time
	StopDuration	int	Stop duration in minutes
	StopName	string	Optional. Stop name for report
opts		array
	Loop	bool	Whether to create a route that loops back to the first stop (default is False).It only applies if Fix is First, ignored otherwise.
	Fix	string	"First": route should start at the first stop in list. "Last": route should end at the last stop in list. "Both": route should start at the first stop and end at the last stop in list. If Fix is not null then the route is optimized. If it is null, then the route is in the order of the stop list.

CalculatePath(Coord From, Coord To)

Calculates the path between two coordinates based on the current minimization variable. If successful, returns an instance of Routing.Path.

Option	Type	Description
From	Coord	Coordinate of origin point
To	Coord	Coordinate of destination point

CreateReport(array opts)

Creates a report in PDF format..

Option		Type	Description
opts		array
	PathObj	Routing.Path	Routing.Path class instance (returned from CalculatePath())
	OpenReport	bool	Default to false. If true, display the report document
	FileName	string	Optional name of the output PDF file name

ExportToExcel(array opts)

Export the path results to an Excel sheet.

Option		Type	Description
opts		array
	PathObj	Routing.Path	Routing.Path class instance (returned from CalculatePath())
	OpenExcel	bool	Default to false. If true, display the Excel document
	FileName	string	Optional name of the output Excel file name

DistanceTable(array opts)

Calculates the table(s) of distances between points

Option		Type	Description
opts		array
	Origins	string	Origin layerset name
	IsEuclid	bool	Default to false. If True, Euclidian distances are computed. If False, network distances are computed.
	Destinations	string	Destinations layerset name
	MaxImpedanceValue	real	Cutoff threshold, do not search paths whose length value is longer than this
	OutputFileName	string	The output filename, if only one file
	ClosestDestinations	integer	Sets the number of closest destinations to be output for each origin.

Returns

DistanceTable() returns an option array

Option		Type	Description
OutFileName		string	Full path and filename of the output distance table

Examples

GISDK, VBA and Python examples provided below.

The examples below work for the US. If your current Country Package is other than the US, you would need to change the coordinates and addresses where appropriate.

GISDK

// Generate a shortest path via 5 routing points and display on the current map window

Macro "RoutingExample1"

on error do

ShowMessage(GetLastError())

return()

end

p1.Coordinate = Coord(-71259994, 42298892)

p1.StopDuration = 30

p1.StopName = "Babson College"

p2.Coordinate = Coord(-71250024, 42341178)

p2.StopName = "Lasell College"

p2.StopDuration = 120

p3.Coordinate = Coord(-71187232, 42298633)

p3.StopDuration = 43

p3.StopName = "Mount Ida College"

p4.Coordinate = Coord(-71197377, 42340143)

p4.StopName = "Boston College"

p5.Coordinate = Coord(-71310381, 42298016)

p5.StopName = "Wellesley College"

RoutingPoints = {p1, p2, p3, p4, p5}

router = CreateObject("Routing.Router")

router.Minimize = "Time"

router.IncludeRestStops = true

router.TimeBetweenRests = 5

router.RestStopDuration = 20

router.FuelPrice = 3.29

router.SingleThreaded = true

// Modify speed factor by link type 1: slow, 4: Normal, 7: fast

router.MajorHighwaySpeedLevel = 4

router.SecondaryHighwaySpeedLevel = 4

router.LocalHighwaySpeedLevel = 4

router.ArterialSpeedLevel = 4

router.LocalRoadSpeedLevel = 4

spOpts = null

spOpts.Fix = "First"

spOpts.Loop = True

path = router.Calculate(RoutingPoints, spOpts)

if path.Error then

Throw(router.ErrorMessage)

// create a report

ret = router.CreateReport({PathObj: path, OpenReport: true,

FileName: GetRandFileName("*.xlsx")})

if ret.Error then Throw(ret.ErrorMessage)

// ret = router.ExportToExcel({FileName: GetTempFileName("*.xlsx"), OpenExcel: true})

// if ret.Error then Throw(ret.ErrorMessage)

// Display path on current map

path.PathDisplayWidth = 60

shared cc_Colors

path.PathDisplayColor = cc_Colors.Red

path.DisplayPath()

// path.ClearPathDisplay()

endmacro

// simple path from an origin coordinate to a destination coordinate

macro "RoutingExample2"

on error do

ShowMessage(GetLastError())

return()

end

// Example near Newton, MA

OriginCoord = Coord(-71206120, 42321660)

DestCoord = Coord(-71164968, 42331357)

// StopTimes = {30, 20, null, 25}

router = CreateObject("Routing.Router")

router.Minimize = "Time"

router.FuelPrice = 3.29

path = router.CalculatePath(OriginCoord, DestCoord)

if path.Error then Throw(path.ErrorMessage)

// create a report

ret = router.CreateReport({PathObj: path, OpenReport: true})

if ret.Error then

Throw(ret.ErrorMessage)

// Display path on current map

path.PathDisplayWidth = 60

shared cc_Colors

path.PathDisplayColor = cc_Colors.Red

path.DisplayPath()

//path.ClearPathDisplay()

endmacro

// This example creates a shortest time route between two addresses

Macro "CalculateTimeDistance"

on error do

ShowMessage(GetLastError())

return()

end

finder = CreateObject("Data.Finder")

finder.SetRegion()

args.silent = true

args.address = "407 Marlborough Street"

args.city = "Boston MA"

p1 = finder.Find("ADDRESS", args)

args.silent = true

args.address = "1172 Beacon Street"

args.city = "Newton MA"

p2 = finder.Find("ADDRESS", args)

myRouter = CreateObject("Routing.Router")

myRouter.Minimize = "Time"

myRouter.MajorHighwaySpeedLevel = 1

myRouter.SecondaryHighwaySpeedLevel = 1

myRouter.LocalHighwaySpeedLevel = 1

myRouter.ArterialSpeedLevel = 1

myRouter.LocalRoadSpeedLevel = 1

path = myRouter.CalculatePath(p1.Coord, p2.Coord)

endmacro

// Computes a distance table for all points in a selection set

// Before running this macro

// - Open a map of the US,

// - Make the City/Town layer the working layer

// - Create a "My Towns" Selection Set using the Selection Toolbar

Macro "ComputeDistanceTable"

SetLayer("City/Town")
router=CreateObject("Routing.Router")
router.Minimize="Time"
router.IncludeRestStops = true
router.TimeBetweenRests = 5
router.RestStopDuration = 20
router.FuelPrice = 3.29
router.SingleThreaded = true

//Modifyspeedfactorbylinktyoe1:slow,4:Normal,7:fast
router.MajorHighwaySpeedLevel=4
router.SecondaryHighwaySpeedLevel=4
router.LocalHighwaySpeedLevel=4
router.ArterialSpeedLevel=4
router.LocalRoadSpeedLevel=4

opts.Origins = "My Towns"
opts.Destinations = "My Towns"
opts.IsEuclid = 0
opts.ClosestDestinations = 2

opts.OutputFileName = GetRandFileName("*.bin")

ret = router.DistanceTable(opts)

tableObj = CreateObject("Table", ret.OutFileName)
tableObj.View()

endmacro

.NET

Please, follow this link for a C# example: Using the CaliperForm.Connection.Gisdk Class: Calculate_Route()

For information about prgramming Maptitude in .NET, please refer to Accessing Maptitude from .NET

VBA

Dim dk As Object

Private Sub UserForm_Initialize()
Gisdk.RunMacro "MinimizeWindow", "Frame|"
Gisdk.RunMacro "SetMapUnits", "Miles"

' Open the map used by this application

'Note: The map is installed under C:\Users\your_user_name\Documents\Caliper\Maptitude 20YY\Tutorial\, where 20YY is the Maptitude version
folder = Gisdk.Macro("G30 Tutorial Folder", "")
Gisdk.RunMacro "OpenMap", folder + "BMP_SVR.MAP", Null

' Change its size to the size required by the client
Gisdk.RunMacro "SetWindowSizePixels", Null, 600, 600

' Change the current layer to the cities and towns layer
Gisdk.RunMacro "SetLayer", "Cities & Towns"

End Sub

Private Sub CommandButton1_Click()

CreatePath

End Sub

Private Sub CreatePath()

On Error GoTo Error_handler:

Set dk = CreateObject("Maptitude.AutomationServer")

dk.RunMacro "SetMapUnits", "Miles"

units = dk.RunMacro("GetMapUnits", Null)

Dim dP1, dP2, dP3, dP4, dP5

Set dP1 = CreateObject("Scripting.Dictionary")

Set dP2 = CreateObject("Scripting.Dictionary")

Set dP3 = CreateObject("Scripting.Dictionary")

Set dP4 = CreateObject("Scripting.Dictionary")

Set dP5 = CreateObject("Scripting.Dictionary")

With dP1

.Add "Coordinate", dk.RunMacro("Coord", -71259994, 42298892)

.Add "StopDuration", 30

.Add "StopName", "Babson College"

End With

With dP2

.Add "Coordinate", dk.RunMacro("Coord", -71250024, 42341178)

.Add "StopDuration", 30

.Add "StopName", "Lasell College"

End With

With dP3

.Add "Coordinate", dk.RunMacro("Coord", -71187232, 42298633)

.Add "StopDuration", 30

.Add "StopName", "Mount Ida College"

End With

With dP4

.Add "Coordinate", dk.RunMacro("Coord", -71197377, 42340143)

.Add "StopDuration", 30

.Add "StopName", "Boston College"

End With

With dP5

.Add "Coordinate", dk.RunMacro("Coord", -71310381, 42298016)

.Add "StopDuration", 30

.Add "StopName", "Wellesley College"

End With

Dim P1, P2, P3, P4, P5

P1 = CreateOptFromDictionary(dP1)

P2 = CreateOptFromDictionary(dP2)

P3 = CreateOptFromDictionary(dP3)

P4 = CreateOptFromDictionary(dP4)

P5 = CreateOptFromDictionary(dP5)

Dim RoutingPoints

RoutingPoints = Array(P1, P2, P3, P4, P5)

'RoutingPoints = Array(P1, P2)

Dim router

Set router = dk.CreateObject("Routing.Router", "")

router.Set "Minimize", "Time"

router.Set "IncludeRestStops", True

router.Set "TimeBetweenRests", 5

router.Set "RestStopDuration", 20

router.Set "FuelPrice", 3.29

Dim pth, PathRep, repOpts, ret

Set pth = router.Method("Calculate", RoutingPoints, spOpts)

Set PathRep = CreateObject("Scripting.Dictionary")

PathRep.Add "PathObj", pth

PathRep.Add "FileName", "c:\\temp\\Path.xlsx"

PathRep.Add "OpenReport", True

repOpts = CreateOptFromDictionary(PathRep)

ret = router.Method("CreateReport", repOpts)

Exit Sub

Error_handler:

MsgBox "Path calculation returned an error"

End Sub

Function CreateOptFromDictionary(dict) As Variant

Dim nItems, i As Integer

Dim Key, items

Dim options

nItems = dict.Count

i = 0

ReDim options(nItems - 1, 1)

For Each Key In dict.Keys()

options(i, 0) = Key

If TypeOf dict(Key) Is Object Then

Set options(i, 1) = dict(Key)

Else

options(i, 1) = dict(Key)

End If

i = i + 1

CreateOptFromDictionary = options

End Function

Python

Please, refer to the "Programming Maptitude in Python" section in the GISDK Help for further reference on how to access Maptitude from Python

# PYTHON 3 Routing Example

import sys

import os

import traceback

import caliperpy

import ctypes

from ctypes.wintypes import HWND, LPWSTR, UINT

_user32 = ctypes.WinDLL('user32', use_last_error=True)

_MessageBoxW = _user32.MessageBoxW

_MessageBoxW.restype = UINT

_MessageBoxW.argtypes = (HWND, LPWSTR, LPWSTR, UINT)

MB_OK = 0

# NOTE: *****************************

# Open Maptitude and an map of the USA

dk = caliperpy.Maptitude.connect()

p = dk.GetProgram()

try:

dk.SetMapUnits("Miles")

units = dk.GetMapUnits(None)

p1 = {"Coordinate": dk.Coord(-71259994, 42298892), "StopDuration": 30,

"StopName": "Babson College"}

p2 = {"Coordinate": dk.Coord(-71250024, 42341178), "StopDuration": 30,

"StopName": "Lasell College"}

p3 = {"Coordinate": dk.Coord(-71187232, 42298633), "StopDuration": 30,

"StopName": "Mount Ida College"}

p4 = {"Coordinate": dk.Coord(-71197377, 42340143), "StopDuration": 30,

"StopName": "Boston College"}

p5 = {"Coordinate": dk.Coord(-71310381, 42298016), "StopDuration": 30,

"StopName": "Wellesley College"}

RoutingPoints = [p1, p2, p3, p4, p5]

router = dk.CreateGisdkObject("gis_ui", "Routing.Router")

router.Minimize = "Time"

router.IncludeRestStops = True

router.TimeBetweenRests = 5

router.RestStopDuration = 20

router.FuelPrice = 3.29

path = router.Calculate(RoutingPoints, None)

if path is not None:

time = path.Time

dist = path.Distance

ret = router.CreateReport({"PathObj":path, "OpenReport":1,

"FileName": dk.GetRandFileName("*.xlsx")})

retOpts = dict(ret)

if ( not retOpts is None ) and ( 'ErrorMessage' in retOpts ):

_MessageBoxW(0, retOpts["ErrorMessage"], "Error", MB_OK)

else:

_MessageBoxW(0, "Path length: " + str(dist) + " : " + "Path Time: " + str(time),

"Information", MB_OK)

else:

raise Exception("Please open a map window first")

except Exception as Error:

_MessageBoxW(0, repr(error), "Information", MB_OK)

# Computes a distance table for all points in a selection set

# Before running this macro

# - Open a map of the US,

# - Make the City/Town layer the working layer

# - Create a "My Towns" Selection Set using the Selection Toolbar

import caliperpy

def compute_distance_table(dk, opts):

# Create and configure the routing object
router = dk.CreateGisdkObject("gis_ui", "Routing.Router")
router.Minimize = "Time"
router.IncludeRestStops = True
router.TimeBetweenRests = 5 # minutes
router.RestStopDuration = 20 # minutes
router.FuelPrice = 3.29
router.SingleThreaded = True

# Speed levels: 1=slow, 4=normal, 7=fast
router.MajorHighwaySpeedLevel = 4
router.SecondaryHighwaySpeedLevel = 4
router.LocalHighwaySpeedLevel = 4
router.ArterialSpeedLevel = 4
router.LocalRoadSpeedLevel = 4

ret = router.DistanceTable(opts)

# Get the name of the output table file
distance_table = next((v for k, v in ret if k == "OutFileName"), None)

dk_table = dk.CreateGisdkObject("gis_ui", "Table", {"FileName":distance_table})
dk_table.View()

# Initialize GISDK session
dk = caliperpy.Maptitude.connect()
pro = dk.Getprogram()
print(pro)

# Set up distance table options
opts = {
"Origins": "My Towns",
"Destinations": "My Towns",
"IsEuclid": "False",
"OutputFileName": r"C:\temp\outdist.bin"
}

table_file = compute_distance_table(dk, opts)

See Also:

CC.ModifyTableOperations