Setup can be run with a few command line switches:

/SILENT
Does not ask for any user interaction - setup process is visible.

/VERYSILENT
Does not ask for any user interaction - setup process is invisible.

/ALLUSERS
Installs for all users. Requires administrative privileges. By default, will install into %PROGRAMFILES%.

/CURRENTUSER
Install for a current user only. Does not require administrative privileges. By default, will install into  %LOCALAPPDATA%\Programs\TatukGIS\.

/DIR=
Overrides installation folder.

DK ActiveX created applications, never-the-less, can run on Windows XP. Just keep in mind Windows XP limitations, such as accessing https:// (SSL) webservices.

You can follow www.youtube.com/watch?v=G_HhwD0ZptM to learn how to install VB6 on Windows 11. If that is not an option, drop an email to support@ for assistance.

POLYGON ((30.4 10.2, 40.0 40.0, 20.7 40.0, 10.2 20.5, 30.4 10.2))

WKT format is typically used for the interchange of geometrical data. TatukGIS support for WKT enables a user to copy and paste a WKT string defining the geometry of a shape into the Editor’s Clipboard feature, from which it can be rendered in a temporary layer for further use. Demonstrations in the following blogs include the step of rending a polygon provided as a WKT string:

Metes-and-Bounds Survey Descriptions in GIS Mapping
Firefly Cartography with TatukGIS Software

Authoritative documentation of the WKT format and related information is provided by the Open Geospatial Consortium (www.ogc.org). A more concise and easy to understand description of the WKT format can be found at Wikipedia. Visit: Well-known text representation of geometry - Wikipedia.

Wikipedia also offers concise descriptions of other TatukGIS supported OGC geospatial data formats and protocols, including the following text-based interchange formats:

GML - Geography Markup Language
KML - Keyhole Markup Language
JSON - JavaScript Object Notation

The most common reason for this is the Windows "Controlled Folders" setting. The easiest workaround is to temporarily disable this feature at the time of installing the TatukGIS software. Refer to Microsoft guidance provided at: Controlled folder access. Alternatively, unselecting Sample Data from the installation should also bypass the problem.

For sure, the TatukGIS setup program is not ransomware! Unfortunately, Microsoft offers no fast and easy way to acknowledge this and grant access to the Documents folder.

All setups released after January 2023 introduced a modification to the installation procedure to bypass this problem by installing the sample data to a different location.

Topmost layer
A continuous group of layers located at the top of the map (i.e., held in the highest layer(s) of the map project) with layer.CachedPaint=False.
Such group of layers can be refreshed independently from the rest of the map with viewer method InvalidateTopmost. We call this a "shallow repaint". This is perfect for presenting uncomplicated layers such as for GPS tracking or dynamic editing.

By calling viewer method InvalidateWholeMap, the whole map is refreshed (regular layers and topmost layer). We call this a "deep repaint", which can much slower. A deep repaint is aways performed after map dragging or zooming.

Refer to the guidance on this topic provided at the following pages of the DK online documentation.

SVG Shield Construction (how to create a shield symbol)
SVG Symbol Library Compiler (create a user-defined SVG symbols library)
SVG Symbol Library Complete List (the TatukGIS provided symbols library, including road shields)

procedure TForm1.doLabelPos(
        _sender : TObject ; 
        _shape  : TGIS_Shape ;
        _pos    : TGIS_LabelPosition ; 
  var   _pt     : TPoint ; 
  const _rct    : TRect
) ;
begin
  _pt := _shape.Layer.Viewer.Ref.MapToScreen( _shape.Centroid ) ;
end;

Doing this requires that a 32-bit (x86) version of PowerShell be started.

Sample code:

#activate
$utils = new-object -COMObject "TatukGIS_XDK11.TGIS_Utils"
$utils.SetLicense(YOUR ACTICATION CODE)

#create a viewer and draw a map
$vwr = new-object -COMObject "TatukGIS_XDK11.TGIS_ViewerBmp"
$vwr.SetSize( 512, 512 ) 
$vwr.Open( "c:\Users\Public\Documents\TatukGIS\Data\Samples11\World\WorldDCW\world.shp" )
$vwr.ZoomIn()
$vwr.Draw_()

#save map to the disk
$bmp = new-object -COMObject "TatukGIS_XDK11.TGIS_Bitmap"
$bmp.NativeBitmap = $vwr.Bitmap 
$bmp.SaveToFile( "c:\tmp\out.bmp" ) 

The coordinate system of the map in the Viewer is used to reproject the map, provide proper scale, etc. Even a single layer without a CS makes all computations unpredictable. In such situation, therefore, the software simply swiches off the whole coordinate system.