History:

A # denotes changes, where current code may need updating.
(This history goes back to the start of 2002)

20-May-2010
Minor issue with coordinate2node and points to the far
west of the MBR of the network.

09-Jan-2010
Bug fixed in IsoCostDynInternal affecting use of 
GetLinkCostDyn in turnmode.

*******************************************************
11-Nov-2009: Version 2.42

18-Oct-2009
RouteDyn_Approach failed for certain combinations, when
link1=link2. Fixed.

14-Oct-2009
When using array output, isopoly2/3/4 all failed. Fixed.
At the same time array polygons from the same functions
are ordered clockwise/counterclockwise similar to SHP files.

28-Sep-2009
CPP returned wrong error code
New functions:
GetLinkCostDyn2, IsoCostDyn2, IsoCostDynLocationList2
    
*******************************************************
01-Sep-2009: Version 2.41

31-Aug-2009
Updated for Delphi 2010

30-Aug-2009
New function: TurnExport2_GIS
Bug in TurnStandard, when valency>4, corrected.

11-Aug-2009
Method ExternIDimport(2) used temporary files which had the
same name for multiple threads. File names are now unique.

16-Jun-2009
In a nwload-nwunload-nwload sequence, information about
round-about links was not reset.

25-May-2009
Allowing the same network to be opened at the same time
with multiple clients.

23-Mar-2009
Updated for Delphi 2009

*******************************************************
18-Mar-2009: Version 2.40

30-Jan-2009
Improvement for the non-.NET versions by using assembler a
few critical places.

10-Dec-2008
Bug in NWcreate solved, when dealing with very large networks
(>10 million links). The bug was introduced 4-Nov-2008.

9-Dec-2008
Max number of limits loaded increased to 9.
# They now need to be loaded in sequence (1 and 2 for instance,
while loading 1, 2 and 4 will ignore 4).

7-Dec-2008
Function IsoPoly2* improved for single centered isochrones
in large networks. Also improved, when addnodes=0. Up to a
factor 3-4 faster processing time is possible.

*******************************************************
20-Nov-2008: Version 2.39

14-Nov-2008
New function NetworkCenter2

10-Nov-2008
Bug in IsoPoly2Fast and IsoPoly2DynFast solved. Could result
in cut-off output in non-shortest path mode.

4-Nov-2008
Improved performance of NWcreate with data, that is sorted
in unfortunate ways.

1-Nov-2008
A bug corrected in routelist, when using concatmode 4,
vialists = true and roadnamefile = 0.

23-Oct-2008
Bug corrected in isolink2dyn.

*******************************************************
2-Sep-2008: Version 2.38

26-Aug-2008
Corrections to isopoly2/3/4, when combined with addnodes and
bounding box. Some combinations were not working properly.

12-Jun-2008
Bug fix for NWunload. Could cause problems with extern ID files

24-Apr-2008
New function POIadd2

22-Mar-2008
Bugfixes for POI functionality

11-Mar-2008
RW Net now uses MITAB DLL 1.7.0, which allows for
multi-threaded output.

*******************************************************
23-Feb-2008: Version 2.37

21-Feb-2008
New functions HierarchyCheck1 and HierarchyCheck2

14-Feb-2008
# New property CoordinateWindow

31-Jan-2008
New functions POIadd and POIclear

10-Jan-2008
RoadnameCreate improved to better handle loading large files.

27-Nov-2007
Bug corrected that could affect output of GIS files in
dynamic segmentation mode when using lat/long data.

*******************************************************
20-Oct-2007: Version 2.36

12-Oct-2007
RW Net now uses MITAB DLL 1.6.3

11-Oct-2007
Correction made to IsoCostDynLocationListN, that could make it
return the wrong locations, if turnmode=true, internal variable
FMaxIcost had not been initialized and locations had specific (rare)
setups.

9-Oct-2007
New function ExternIDimport2.

1-Oct-2007
New function NetworkCenter.

19-Sep-2007
A few minor updates to be .NET 2 compatible.

9-Sep-2007
Corrected handling of out-of-memory in TSP2, TSP2dyn and RouteList
function.

19-Jun-2007
In functions IsoPoly2* and IsoLink2Dyn additional input
checks has been added to ensure proper execution.

13-Jun-2007
An internal error code in RouteDyn has been updated to ensure
proper interaction with RouteList. 

7-Jun-2007
New functions CoordinateExtract and CoordinateExtractCount added.

*******************************************************
6-Jun-2007: Version 2.35

11-May-2007
New procedure RouteListExitMode.

23-Apr-2007
New attribute bits for defining U-turns
# U-turns can no longer be defined through function TurnRestriction.

16-Apr-2007
New attribute bit for non-driving links (ferries, car trains)
RW Net now uses MITAB DLL 1.6.1.

30-Mar-2007
Corrected bug in function RouteDyn. Could cause crash,
if using turnmode and the first location was a loop link.

11-Mar-2007
Corrected bug in coordinate2location, where it in rare
situations didn't find the nearest location.

9-Feb-2007
New functions IsoPoly2Fast and IsoPoly2DynFast.
IsoPoly2-3-4 has been improved slightly.

*******************************************************
5-Feb-2007: Version 2.34

2-Feb-2007
Corrected bug in AttributeCreate2, HierarchyCreate2 and
RoadNameCreate2 in the .NET version. Introduced with the
release of 2.32.

18-Jan-2007
Corrected bug in function RouteDyn_Approach.
New function SetApproach.

21-Dec-2006
Even more minor problem corrected with creating driving
directions (function RouteList) in roundabouts, so the
count of exit links came out wrong (see 28-8-2006).

30-Nov-2006
Correction to GML/KML format for simple lines.

28-Nov-2006
Bug corrected in Isopoly3/Isopoly4 when using maxcost=0.
(Bug was introduced with release 2.33)

*******************************************************
18-Nov-2006: Version 2.33

17-Nov-2006
Bug in IsoPoly functions solved: Some isochrones could be
too small, if using turnmode and addnodes>0.

13-Nov-2006
KML added as output format.
Bug in ExternIDfindID solved.

26-Oct-2006
New function IsoPoly2Dyn.

23-Oct-2006
Corrected bug in NWcreate in the .NET version. Introduced
with the release of 2.32.

20-Oct-2006
New functions: TurnRestrictionComplex, TurnExport2_BIN,
TurnExport2_TXT, TurnImport2_BIN, TurnImport2_TXT.

3-Oct-2006
Improvements in spatial index and coordinate2node/location
functions. Especially in multi-threaded applications and
when using coord3cache=true.

*******************************************************
21-Sep-2006: Version 2.32

Required assemblies for the .NET version has been updated !

18-Sep-2006
Problem with isopoly2 solved. It could create polygons with
just 2 nodes in rare situations.

11-Sep-2006
Procedure ViaListClear added.

28-Aug-2006
Minor problem corrected with creating driving directions
(function RouteList) in roundabouts, so the count of exit
links came out wrong.

23-Aug-2006
A bug corrected, which made GetNodeExtra always return 0,
if turnmode=true and calling NearestOpen before Route.

14-Aug-2006
Max linklimit increased to 80 million links for Pro version
RW Net now uses MITAB DLL 1.5.1.

9-Aug-2006
Bug with property IsoCostOffSet corrected

28-Jul-2006
New function TurnMandatory

29-Jun-2006
New property IsoCostOffSet

27-Jun-2006
New function SubNetEx

*******************************************************
21-Jun-2006: Version 2.31

18-May-2006
Correction to make the .NET 1.1 version more compatible
with .NET 2.0 (100% compatibility is not yet sure).

21-Apr-2006
Critical bug corrected in all basic route functions, if
used with turnmode=true and between non-connected subnets.
Resulted in endless loop.

20-Apr-2006
Function coordinate2location could return percentage>1
in some rare situations.

14-apr-2006
New function LimitLoad_bitpattern

*******************************************************
4-Apr-2006: Version 2.30

1-Apr-2006
New function LimitCreate2
New function CloseLinkFixed

31-Mar-2006
New function AttributeLoad2
New function RouteDyn_Approach

22-Mar-2006
Functions IsoCostDyn* would hang, if turnmode=true.
This also affected TSP2dyn and RouteList, if used with
dynamic segmentation and turnmode=true.

08-Mar-2006
Function VRPresult didn't return any value for parameter
routecount in OCX version.

07-Mar-2006
Corrected problem with VRP functions, if only 1 route was
returned.
Corrected problem with encryption on roadname files.

22-Feb-2006
Corrected problem in NWcreate if using both encryption
and non-valid objects in the input file.

21-Feb-2006
RW Net now uses MITAB DLL 1.5.0.

*******************************************************
16-Feb-2006: Version 2.29

14-Feb-2006
Bug with NWcreateTAB solved.

12-Feb-2006
Support for hierarchical routing added:
HierarchyCreate2, HierarchyLoad, HierarchyLevelSet, Hierarchy

23-Dec-2005
NWcreate failed on empty tables. Corrected.

14-Dec-2005
Internal PQ class improved. Makes most routing functions
10-13% faster.

25-Nov-2005
Bug corrected that could affect the output of functions:
IsoCostDynLocationListN and NearestLocation, if alpha<>0.

*******************************************************
16-Nov-2005: Version 2.28

15-Nov-2005
VRP functions added.

12-Nov-2005
Bug in function IsoPoly2 solved - caused invalid output files.

6-Nov-2005
Support for reading from DAT/DBF files with >80 fields added.
Output of timestamps from function RouteList could incorrectly
look like 6:60 instead of 7:00 - corrected.

2-Nov-2005
New property SpatialIndexLinksPerCell.

29-Oct-2005
Bug corrected in Coordinate2location. Gave error in case of
exact match with any node (not just intersections) in the
network in latitude/longitude data.

*******************************************************
8-Sep-2005: Version 2.27

21-Aug-2005
Bug solved in NWcreate in .NET version. It was only in case
of links with >256 cosmetic nodes and ExtendedDataCheck>0,
that it would show.

18-Aug-2005
Minor bug corrected in reading of text fields in DBF files.

15-Aug-2005
Bug corrected in IsoLink2 function, when using turnmode=true.

11-Aug-2005
Bug corrected in IsoPoly-functions when generating TAB/GML
files. In rare situations the output was invalid.

8-Aug-2005
Bug in turn restrictions corrected: Gave overflow in case
of link IDs > 8 millions.

18-Jul-2005
In function TSP2/TSP2dyn mode 2/12, when ATSP=true has
been improved. It now performs as fast as the other modes.
Resulting routelength may be 0.5% worse.

12-Jul-2005
Minor bug in function RouteList corrected.

*******************************************************
22-Jun-2005: Version 2.26

21-Jun-2005
New property SharpTurnDrivingDirections.

17-Jun-2005
Bug corrected in function RouteList - was related to
using turnmode = true.

13-Jun-2005
New function NodeLinkCheck.

22-May-2005
New function RoadNameGroupBy.

20-May-2005
Bug solved in RouteDyn. RouteReady returned false,
if link1=link2 and turnmode=true.

19-May-2005
New function RoadNameCreate2.

17-May-2005
New function Overpasses.

12-May-2005
New function AttributeCreate2.

*******************************************************
18-Apr-2005: Version 2.25

5-Apr-2005
Bug solved in NWcreateTAB in the .NET version.
Bug solved in ExternIDfindID in the .NET version.
Also solved a problem in ExternIDfindID with lower
case letters in identifiers (all platforms).

3-Apr-2005
RW Net now uses MITAB DLL 1.4.0.

31-Mar-2005
#Typo bug corrected in ExternIDfindIndex OCX interface
(was ExternIDfindeIndex).

28-Mar-2005
Function CulDeSac corrected. Not valid links were marked as loops.

19-Mar-2005
#Percent parameter for LocationListGet/Set changed from
single to double. Doesn't affect OCX / DLL.

15-Mar-2005
Bug corrected in RouteList Mapbasic header and
Avenue demo project file.

15-Mar-2005
Bug corrected in RouteList OCX interface.

14-Mar-2005
Bug corrected in RoadName2_Get OCX interface.

14-Mar-2005
New function Coordinate2LocationSimple.
New function RoadNameTest.

23-Feb-2005
Bug solved in NWcreate, when using z-levels and some
objects where not (normal) single-sectioned polylines.

20-Feb-2005
Minor bug corrected in function IsoCostNodeListN, when
several nodes had the same cost.


*******************************************************
18-Feb-2005: Version 2.24

11-Feb-2005
New function RouteList.

7-Feb-2005
New function Join2.

4-Feb-2005
New property EPSG.

1-Feb-2005
GML 2 support added for output.

31-Jan-2005
Bug corrected in function coordinate2node in cases of exact match
with existing node when using latitude/longitude coordinates.

23-Jan-2005
Internal changes to nwcreate function to improve
performance with very large networks - especially in the
.NET version.

11-Dec-2004
New functions: SetShortest, SetFastest.

09-Dec-2004
New function: ViaListSet.

05-Dec-2004
New functions: RoadNameCreate, RoadNameLoad, RoadNameClose,
               RoadName1_Get, RoadName2_Get, RoadNameID_Get.

03-Dec-2004
New functions: PositionListGet, PositionListSet.

*******************************************************
02-Dec-2004: Version 2.23

23-Nov-2004
RouteFileAddSection sometimes gave problems in
multi-threaded environments. Bug corrected.

23-Nov-2004
Writing to TAB format could give problems in
multi-threaded environments. Bug corrected.

21-Nov-2004
New function: IsoLink2Dyn.

19-Nov-2004
New function: ErrorMsg.

14-Nov-2004
New function: RouteMaxCost.

02-Nov-2004
Corrected problem in using progress bars in DLL version.
Corrected problem with colours in output from isolink2/isolink4.

27-Oct-2004
Bug in function nwload corrected. Used to give AV error if the
network files are missing.

25-Oct-2004
Interface for IsoCostNodeListN was missing from OCX.

21-Oct-2004
.NET version released.

*******************************************************
22-Sep-2004: Version 2.22

14-Sep-2004
Corrected problem with progress bars in the DLL version

10-Sep-2004
New function RouteFileRecordAddCustomSection.

01-Sep-2004
.NET beta version

31-Aug-2004
Bug corrected in using negative ID's in the externID functions.

03-Aug-2004
Bug corrected in function GetLinkCostDyn, when used with IsoCostDyn and a maxcost<>0.

03-Aug-2004
List of supported TAB coordinate systems updated in accordance
with MITAB 1.3.0 (includes 170 now).

30-Jul-2004
Bug corrected related to using "," as decimal point in the isopoly functions.

25-Jul-2004
Property GISformat now also on RWcalc object.

22-Jul-2004
New property EncryptionKey.

15-Jul-2004
Function AttributeRead renamed into AttributeLoad.
(AttributeRead is still available in DLL and OCX version)

01-Jul-2004
RW Net now uses MITAB DLL 1.3.0.

25-Jun-2004
New function: NetworkLength.

25-Jun-2004
Bug corrected in reading TAB files - caused slight numeric problems
in rare cases.

19-Jun-2004
Bug corrected in function TSP/TSP2/TSP2dyn in mode 0, 2, 10 and 12 in
the case of the first/last node in the list being duplicated.

*******************************************************
02-Jun-2004: Version 2.21

26-May-2004
New property ATSP.

18-May-2004
Bug in IsoPoly4 DLL header corrected.

15-May-2004
Bug in colour output in function IsoPoly3 corrected (TAB format only).

15-May-2004
Problem with function IsoCostMulti in turn mode solved.
Same problem also affected function IsoPoly2 and IsoPoly4.

11-May-2004
Function TurnStandard can now handle nodes with a valency
of 4, 6, 8, 10 or 12.

11-May-2004
Function TurnReset was missing from OCX interface.

09-May-2004
New functions: TSPextra and TSP2extra

28-Apr-2004
# In function FindCloseNodes, the field "Connected" has been
removed and only those with Connected=false are written.

24-Apr-2004
Corrected bug in SHP file writer (DBF part). The width of
the first field was used as maximum width for all fields.

20-Apr-2004
Corrected problem with file location in functions ExternID.

03-Apr-2004
Corrected bug in TSP functions in mode 2 & 12.

25-Mar-2004
Corrected bug in function TSP2 / TSP2dyn in DLL version.


*******************************************************
17-Mar-2004: Version 2.20

11-Mar-2004
New function SetSmoothing.
(disabled again because of problems)

15-Feb-2004
New function TurnReset.

10-Feb-2004
New function TSP2.

06-Feb-2004
New function Location2Coordinate.

04-Feb-2004
New function TSP2dyn.

03-Jan-2004
New functions NearestLocation, IsoCostDynLocationList and
IsoCostDynLocationListN.


*******************************************************
29-Dec-2003: Version 2.19

18-Dec-2003
New functions CPP and EulerRoute.

17-Dec-2003
New functions: LocationListGet, LocationListGetNewPos,
LocationListGetOldPos, LocationListLimit, LocationListSet.

17-Dec-2003
Corrected bug in function GetLinkCostDyn which made it fail
in connection with non-dynamic segmentation.

25-Nov-2003
Function TSP now accepts just 2 numbers in the list in all
modes. In the case of 2-3 nodes no optimization is then performed.

23-Nov-2003
New function SetLinkResult.

12-Nov-2003
Function Subnet now no longer resets one-way information
during processing.

25-Oct-2003
Corrected problem with LINE objects in MIF files.

15-Oct-2003
Corrected performance problem in function Coordinate2Location
(was only critical when using LatLong data and large datasets).

14-Oct-2003
Corrected bug in function Coordinate2Location.

14-Sep-2003
Added function LimitCreate, LimitLoad and SetLimit.


*******************************************************
26-Aug-2003: Version 2.18

22-Aug-2003
Corrected bug in NWcreateCGF related to deleted objects.
# Added new parameter in IsoPoly4 function.

21-Aug-2003
Corrected bug in NWcreateMIF related to the spatial index.

15-Aug-2003
New functions: IsoCostDyn, RouteFindDyn, GetLinkCostDyn
and GetLinkExtraDyn.

07-Aug-2003
The length of the NodeList now grows dynamically
as needed when you call NodeListSet.

07-Aug-2003
All versions of RW Net and RW NetServer now work with
MITAB.DLL, version 1.2.4 only.

03-Aug-2003
New function District for school districting analysis.
RW Net Pro only.

31-Jul-2003
Internal cache added, which improves performance of IsoPoly (when
AddNodes<>0) and IsoLink functions. If coord3cache is already true,
there is not much difference.
IsoCostA function was added in DLL interface for ArcView.

26-Jul-2003
Corrected 2 bugs when writing TAB files from IsoLink2 and
IsoLink4 function. Wrong colours were sometimes output.
A bug when writing doughnut objects in TAB format in Delphi 5
has been solved.

26-Jul-2003
New function IsoCostNodeListN added.

25-Jul-2003
Added support for polylineM and polylineZ objects in SHP files.

23-Jul-2003
New function SwapOneWay.


*******************************************************
06-Jul-2003: Version 2.17

03-Jun-2003
Corrected rare problem in NWcreate which caused
the calculation of spatial index to fail.

28-May-2003
Function IsoPoly2 and IsoPoly4 now returns error code
-46 if coord3.bin is missing and AddNodes>0.

29-Apr-2003
Progress event for NWcreate improved (now smoother).
Progress event for Route/RouteDyn added.

27-Apr-2003
Functions for creating Routefiles natively added:
RouteFileCreate,RouteFileFieldAdd,RouteFileRecordAdd,
RouteFileRecordAddSection and RouteFileClose

21-Apr-2003
# Function TurnStandard now requires the presence of coord3.bin
and a rare problem has been solved at the same time.

21-Apr-2003
Bug related to using NWcreateMIF with LINE objects and
ExtendedDataCheck corrected.

15-Apr-2003
Added functions Coordinate2Location, Coordinate2Node and 
related functions. Coordinate2Node makes FindNode and FindNodeFast
obsolete.

10-Apr-2003
Function NWCreate now also generates a spatial index. This
is needed by function Coordinate2Location and Coordinate2Node.
Property coord3 is now always considered true, no matter what the
actual setting.


*******************************************************
30-Mar-2003: Version 2.16

29-Mar-2003
Bug with same start/end node in TSPmode 1 and 11 corrected.

25-Mar-2003
NodeListLimit is now 3000 for both Standard and Pro version.

08-Mar-2003
New function IsoLink4 added.

07-Mar-2003
New functions NW3DNodesTAB, NW3DNodesSHP, NW3DNodesMIF and
NW3DNodesCGF. For the detection of multiples nodes with same
coordinates.

05-Mar-2003
# (DLL only)
New event IsoChroneProgress added. Works with these functions:
IsoCost, IsoCostMulti, IsoCostNodeList and IsoLink2, IsoPoly2,
IsoPoly3 and IsoPoly4.

02-Mar-2003
New function IsoLink2 added.

01-Mar-2003
New property AddNodes. Can be used together with
function IsoPoly2, IsoPoly3 and IsoPoly4.

13-Feb-2003
Corrected problem with function GetCoordSys in
DLL version.

10-Feb-2003
Function NearestOpen and NearestOpenDyn added.

05-Feb-2003
When reading from coord3.bin, more than 1 application
can now open it.

29-Jan-2003
Added function for checking of self-intersections
in inputdata to NWcreate functions. Result is part
of network_report.txt. Can be enabled by use of
property ExtendedDataCheck.

22-Jan-2003
Bug in function TSP corrected related to TSP mode
0, 2, 10 and 12 for some few rare situations. In
those situations the error was obvious.


*******************************************************
19-Jan-2003: Version 2.15

17-Jan-2003
Function NodeListGetOldPos has been added.

17-Jan-2003
Bug in function TSP corrected related to using only
3 nodes in tspmode 2 and 12.

08-Jan-2003
NWcreateTAB now returns all coordinate decimals, when a
network is created. It used to be only those decimals,
that MapInfo was going to export to a MIF file.

27-Dec-2002
Added support for Kylix 3.
Delphi 4 and Kylix 1 is no longer supported.

17-Dec-2002
Bug corrected in function IsoPoly4.

17-Dec-2002
Network report as part of NWcreate added. A file called
"network_report.txt" is now created with various information
to the user.

16-Dec-2002
TAB files with smoothed polylines are now supported.
TAB files with user defined datums are now supported
(but not affine transformations).
List of supported projections now includes all those
in MapInfo 7 - a total of 32 types.

07-Dec-2002
Multi-part polylines will now be accepted in SHP files in
the same way as they have been in TAB/CGF files. This means
they are ignored, but the SHP file is not rejected.

02-Dec-2002
Bug in function NodeListGetNewPos corrected (affected TSP function too).

06-Nov-2002
New function GetOpenStatus added.

04-Nov-2002
Isopoly2 has been extended to include 4 additional
Box parameters the same way as in IsoPoly4.

20-Oct-2002
Bug corrected related to using "," as decimal point.


*******************************************************
12-Oct-2002: Version 2.14

05-Oct-2002
# Password changed into string type. New password
assigned to all customers.

03-Oct-2002
External ID functions added.

28-Sep-2002
FindNodeFast and related functions are now part of all
versions (free, etc.)

27-Sep-2002
Function NWexport has been added.

27-Sep-2002
Added property Coord3 and Coord3Cache.

22-Sep-2002
Added function NodeListGetNewPos.

22-Sep-2002
Corrected bug in NWcreateTAB, when using NonEarth tables.

17-Sep-2002
List of supported TAB datums updated in accordance
with MITAB 1.2.2 (now includes 163).

12-Sep-2002
# The OCX versions (free, standard, pro) now all use the same
CLSID - that of the previous Pro version. Functions not
available in the lower versions return -43 as error code.

10-Sep-2002
Long-standing performance problem in function RouteDyn solved.

31-Aug-2002
# In function Isopoly1 parameter cost1 is now always assumed to be 0.
This may affect the output of older code.

Function IsoPoly1new is the new default way to call this
functionality. Bugs have been corrected.

11-Aug-2002
Added new property ZLevelFile

27-Jul-2002
Now possible to import/export turn attributes

25-Jul-2002
Logical fields in SHP files were incorrectly saved as 
numerical fields. This affected the function FindCloseNodes,
when saving as SHP file type.


*******************************************************
15-Jul-2002: Version 2.13

11-Jun-2002
The TAB format is now also supported through MITAB.DLL

08-Jun-2002
Coordsys clause is available as a read-only property.

09-May-2002
The resulting GIS-output of all functions is now determined
by property GISformat:
NWcreate, FindCloseNodes, IsoGrid and NodeCreate.

08-May-2002
# Property PolygonFormat renamed to GISformat and moved
to RWnetBase class.

05-May-2002
Removed Brush clause from line objects in MIF files.


*******************************************************
30-Apr-2002: Version 2.12

30-Apr-2002
Bug related to function ShowProgressAvenue corrected. Made
NWcreateSHP fail under ArcView 3.2.

25-Apr-2002
IsoCostNodeList is a new function for creating an isochrone
until all nodes on the nodelist have been reached. Useful for fast
calculation of cost matrices.

25-Apr-2002
IsoPoly2 now has a new parameter to specify if doughnut polygons
are wanted (e.g. 0-5,5-10,10-15) or the old style (e.g. 0-5,0-10,0-15).
Some further bugs in this function have also been corrected.

20-Apr-2002
Nodelistlimit increased to 50 / 3000 for Standard / Pro version.
Was 20 / 300 before.

18-Apr-2002
Interface for IsoPoly4 extended with parameters to support
the definition of a larger extension than the network alone.

16-Apr-2002
Added support for SHP output by IsoPoly1, IsoPoly2, IsoPoly3 and
IsoPoly4. See new property PolygonFormat.

09-Apr-2002
Bug corrected in NWcreateMIF. If the last object was a LINE
without a resource qualifier, it used to be skipped.

05-Apr-2002
Problem corrected with DLL function NodeCoordXA and 
NodeCoordYA.

03-Apr-2002
Bug corrected in IsoPoly2.


*******************************************************
30-Mar-2002: Version 2.11

28-Mar-2002
Numerical stability for calculation of voronoi-based
isochrones improved by using a small random modification
of the node coordinates (1/1000000).

27-Mar-2002
Added support for C++ Builder 5 & 6.

26-Mar-2002
Bug corrected in IsoPoly4. The field name in the generated
MIF file was missing.

15-Mar-2002
Bug corrected with function IsoCostSave, ResultSave,
RouteSave and ResultFileClear. Gave problems with version
1.00 TAB files.

21-Feb-2002
Incorrect detection of password-protected CGF files
corrected.


*******************************************************
18-Feb-2002: Version 2.10

14-Feb-2002
Performance improved for certain situations with function
RouteDyn (in turn mode), where a full isochrone was otherwise
calculated.

13-Feb-2002
Internal structure for maintaining turn restrictions
improved a lot.

10-Feb-2002
# Function CulDeSac updated with new facility. May require
changes to existing code.

10-Feb-2002
New function IsoPoly4 added for fast generation of
nearest facility isochrones.

05-Feb-2002
Added native support for CartoWorld CGF files. See
function NWcreateCGF.

24-Jan-2002
Function GetLinkDist has been added (It has in fact been
there for a long time in the VCL edition).

23-Jan-2002
Corrected bug in direction2 function. Gave wrong results
if link1=1 or link2=1.

20-Jan-2002
New coordinate systems added: Decimeter and points. These
are both used with ArcView 8.x
Bug associated with certain special coordinate types
corrected: Rod, Chain and Link.


*******************************************************
17-Jan-2002: Version 2.09

17-Jan-2002
10% overall speed improvement gained by various smaller updates.

27-Dec-2001
Wrong header for function TSP corrected in arcview 3.x
demo project.

15-Dec-2001
Bug in function RouteSave corrected. Was introduced by
change in function RouteGetLink 6. December.

13-Dec-2001
Function Node2Link added.


*******************************************************
09-Dec-2001: Version 2.08

09-Dec-2001
Function RoundAboutExitNode added.
Function Direction0 added.

06-Dec-2001
Function RouteGetLink now returns positive/negative link IDs
no matter what the setting of property turnmode.

03-Dec-2001
Function Isopoly2 and Isopoly3 has been extended to allow
even larger networks.

01-Dec-2001
Function Link2FromNode and Link2ToNode added to DLL interface.

24-Nov-2001
Bug corrected in isopoly3 function. Wrong type in DLL header.

19-Nov-2001
Bug corrected in isopoly3 function. Data in resulting
mid file was swapped.


*******************************************************
07-Nov-2001: Version 2.07

06-Nov-2001
Bug in active-x interface corrected.

28-Oct-2001
Function SubNet changed to ignore one-way information

21-Oct-2001
Better support for ArcView 3.x and updated documentation.


*******************************************************
14-Oct-2001: Version 2.06

13-Oct-2001
Function IsoPoly2 changed and function StepsClear and
StepsAdd added.

13-Oct-2001
Error corrected in arcview sample code.

17-Sep-2001
Internal datastructure for turn restrictions improved to
better handle large amounts of restrictions.

21-Aug-2001
Function RouteDyn added for dynamic segmentation in
combination with point-to-point routing.

04-Aug-2001
Function BestNode moved to free version and added to
DLL version interface (was completely missing).

Version 2.05a

25-July-2001
Bug corrected in setting the base directory


*******************************************************
21-July-2001: Version 2.05

20-July-2001
Interface changed for IsoGrid and AirDistPos to have a more
standard order of x/y coordinates.

19-July-2001
Function IsoPoly renamed to IsoPoly1.
Function IsoPoly2 and IsoPoly3 added.

13-July-2001
Wrong detection of invalid parameters in function NodeCoordX
and NodeCoordY corrected.

19-June-2001
Added function Assignment and RouteVia.

18-June-2001
TSP updated with possibility of using straight line
distances instead of road-distances. Parameters maxtime
and log have been removed.


*******************************************************
15-June-2001: Version 2.04

13-June-2001
Bug corrected in function TSP, when running with
support for turn-restrictions (always gave error -38).

12-June-2001
New functions SetLinkSpeed, SetLinkSpeedDefault,
GetLinkTime and GetLinkSpeed.
SetTime replaced by SetLinkTime.
Function IsoPoly has a new parameter for the filename.

11-June-2001
Format for node coordinates ("coord.bin") changed from
single to double precision. Requires that old networks
are re-created.

09-June-2001
Linklimit in Pro version increased to 16,000,000.


*******************************************************
30-May-2001: Version 2.03

30-May-2001
Bug corrected in function NWcreateTAB in combination
with certain coordinate systems.

28-May-2001
Function Join extended with new parameter.


*******************************************************
14-May-2001: Version 2.02

10-May-2001
Added function for finding round-abouts in networks:
FindRoundAbout.

08-May-2001
Function NWcreate updated to use double precision
for internal calculation of link distances
(file "dist.bin").

08-May-2001
New function BestNode for use in connection with
function Route, when node2 is not found (error -33).

03-May-2001
Function TSP updated with new option to calculate the
optimum order with no fixed end-point. Small change in
interface for VCL users.

02-May-2001
Native support for TAB-files updated according to
new datums in version 1.1.1 of MITAB library.

21-Apr-2001
Added attribute for definition of roundabouts: Function
AttributeRead updated and Function Roundabout added.

18-Apr-2001
Property coord2 added for defining if function NWcreate
is to create coord2.bin.


*******************************************************
05-Mar-2001: Version 2.01

04-Mar-2001
Bug fixed in function Route/RouteFind, when using
turn mode.


*******************************************************
27-Feb-2001: Version 2.00
Except for the changes below, the biggest change is in the
internal structure, which now allows for multi-threaded
applications.

27-Feb-2001
Support for turn restrictions added.
See functions TurnRestriction, TurnStandard and proporties
turnmode and Uturnallowed.

22-Feb-2001
Function NodeCreate is a function, which creates the file
node.mif/mid, which can be imported afterwards.
The same function is available in function NWcreate, just
with more decimals.

14-Feb-2001
Function NearestNode added.


*******************************************************
21-Jan-2001: Version 1.08

17-Jan-2001
Slight speed improvement of function FindNodeFast
(appr. 5-10%).

16-Jan-2001
Bug in function TSP fixed: Incorrect results when
using non-round trips and odd number of nodes.

13-Jan-2001
Bug in function IsoGrid corrected.
Minor bug in function OptimumAlpha corrected.


*******************************************************
21-Dec-2000: Version 1.07

19-Dec-2000
ResultGet has been split into ResultGetLink and ResultGetNode.
ResultSave renamed to ResultSaveLink. ResultSaveNode added.
Function IsoCostMulti and SubNet now produces results for
ResultSaveNode.

11-Dec-2000
Function IsoGrid added.

07-Dec-2000
Better support for certain non-standard DBF-files.


*******************************************************
23-Nov-2000: Version 1.06

19-Nov-2000
Function TSP has had the possibility added of calculating
the optimal sequence for non-round-trips.
Length of surveyft updated to use more decimals.

16-Nov-2000
Functions exported in the DLL version with boolean
return type changed to smallint return type.
Functions with double precision variables duplicated
with single precision equivalents for use in Avenue.
These have an "A" added at the end of the function name.

15-Nov-2000
Function TSP has been changed to allow for multiple
occurences of the same node.

09-Nov-2000
Internal change to Direction1/Direction2.


*******************************************************
05-Nov-2000: Version 1.05

02-Nov-2000
Bug in NWcreateTAB and NWcreateMIF corrected. Gave problems
with mixed datatypes.

29-Oct-2000
Bug corrected in interface to NWcreateMIF.

18-Oct-2000
Added functions NodeCoordX and NodeCoordY for retrieving
coordinates of nodes.

15-Oct-2000
Description of alpha updated and function OptimumAlpha updated.

14-Oct-2000
The datastructure has been updated to allow for records marked
for deletion and objects of other types than (poly)lines.

12-Oct-2000
Function AttributeCreate now takes the filename as a parameter.
The attribute now allows for a one-way street in the opposite direction
of the digitization. Add 1024 for this.
A new function CloseLink has been added, which can close a link in
zero, one or both directions after the network has been loaded.


*******************************************************
08-Oct-2000: Version 1.04

08-Oct-2000
Added support for TAB files as input: NWCreateTAB is a new method.
The interface for function NWcreateMIF has been changed to better
match the other NWcreate functions.

07-Oct-2000
Function OptimumAlpha added.
Function NWCreateSHP now uses a buffer when reading from disk.
This has improved speed by 250%.

06-Oct-2000
Function UnUsedLinks added.

04-Oct-2000
Minor change in Priority Queue to achieve a little more speed.

26-Sep-2000
Function "Valency" had been accidentially left out of the DLL version.

21-Sep-2000
Removed bug, which triggered an error in the following call
sequence: NWload,Route,RouteFind,NWUnload,NWload,Route,RouteFind.


*******************************************************
19-Sep-2000: Version 1.03

17-Sep-2000
Added support for SHP files as input: NWCreateSHP is a new method.

16-Sep-2000
Added support for all MapInfo coordinate units.
Removed bug in FindNodeFast when querying coordinates either
east or west of all other nodes.
The format of node.bin has been updated to allow for a 
maximum of 1900 links connected to every node. This also
allows for a slight speed improvement. The format now also
includes a version-code to be checked if the format should
change in the future.

12-Sep-2000
TSP improved a lot, when used with nodes located close
together in big networks.

09-Sep-2000
Bug in AttributeLoad corrected. Gave problems when using
>1 mode and one-way streets at the same time.

08-Sep-2000
Showprogress now also applies to NWLoad in DLL-version.


*******************************************************
06-Sep-2000: Version 1.02

06-Sep-2000
Adjusted NWLoadProgress event.

03-Sep-2000
Bug introduced in version 1.01 removed. Caused errors, when 
using one-way streets.


*******************************************************
31-Aug-2000: Version 1.01

30-Aug-2000
Bug in function "ExtraVarExist" in DLL-version corrected.

20-Aug-2000
Bug corrected in mapbasic header for TSP and showprogress
functions.

18-Aug-2000
Default installation in delphi is now on tab "RouteWare".
The old was "RWNet".
Function GetVersion is added to DLL-version.

15-Aug-2000
Faster AttributeRead, bug in Free-edition corrected. Faster
NWLoad.

10-Aug-2000
Added AttributeReadProgress event.

08-Aug-2000
Improved NWLoadProgress event.


*******************************************************
06-Aug-2000: Version 1.00