Samples

This is a list of source code samples available for Developer Kernel 11 editions for all supported platforms.

A sample can be listed in more than one category.

Samples are distributed with DK setup files and are available on Github:

Alphabetic list

New

AIModelRunner	Sample app for running Python-driven AI Models on TatukGIS Viewer/Layer.
PrintPdf	PrintPdf Sample — Demonstrates PDF output from map printing with custom page content and export to PDF format.
RotatedRect	RotatedRect sample — demonstrates custom drawing on the viewer canvas with rotation (Delphi/VCL).

Basic usage

HelloDK	HelloDK - TatukGIS Developer Kernel introductory sample demonstrating core GIS workflows including data loading, layer management, and interactive visualization.
Hello.NetCore	HelloDK.NetCore sample — introductory demonstration of core TatukGIS DK workflows on .NET Core (C#/.NET WinForms).
AddLayer	AddLayer sample — demonstrates dynamic layer addition and visual parameter configuration.
Zooming	Zooming Sample - Interactive map navigation using mouse wheel zoom, drag-select zoom region, and switching between zoom and pan modes.
Locate	Locate Sample — Demonstrates feature identification and location by finding shapes at the cursor position using spatial queries and pixel-to-coordinate conversion.

Viewer

CGMViewer	CGMViewer sample — demonstrates rendering CGM (Computer Graphics Metafile) symbol files (Delphi/VCL).
Locate	Locate Sample — Demonstrates feature identification and location by finding shapes at the cursor position using spatial queries and pixel-to-coordinate conversion.
Projections	Projections Sample
Renderer	Renderer sample — demonstrates how to load and display a TatukGIS project file that has been pre-configured with custom rendering rules.
SimpleEdit	How to provide editing functionality.
TwoWindows	TwoWindows sample — demonstrates synchronized, two-window display of the same map (Delphi/VCL).
WKT	WKT Sample — Demonstrates parsing and visualization of Well-Known Text (WKT) geometry representations using TGIS_Utils.GisCreateShapeFromWKT.
Legend	Legend Sample - Demonstrates adding and integrating legend controls to display map layer properties and styling information.
Viewer	CGMViewer sample — demonstrates rendering CGM (Computer Graphics Metafile) symbol files (Delphi/VCL).
ViewerLite	ViewerLite Sample - Minimal lightweight map viewer application for displaying GIS data, available for mobile platforms (FMX, WPF, MAUI).
Rotation	Rotation Sample — Demonstrates interactive map rotation around a user-defined point.
MiniMap	MiniMap sample — demonstrates creating a synchronized overview/minimap window (Delphi/VCL).
ShowHint	Hints properties window } unit frmHint;
Enumerators	Enumerators sample — demonstrates spatial iteration using TGIS_LayerVector.Loop() enumerators.
Zooming	Zooming Sample - Interactive map navigation using mouse wheel zoom, drag-select zoom region, and switching between zoom and pan modes.

Layer operations

AddLayer	AddLayer sample — demonstrates dynamic layer addition and visual parameter configuration.
BitmapFill	BitmapFill sample - demonstrates per-shape bitmap fill using a custom PaintShapeEvent callback.
CGMViewer	CGMViewer sample — demonstrates rendering CGM (Computer Graphics Metafile) symbol files (Delphi/VCL).
DragLabel	DragLabel sample — demonstrates interactive draggable feature labels on maps.
InMemory	InMemory sample — demonstrates creating and populating vector layers programmatically at runtime, without loading from files.
Pixel	Pixel - demonstrates how to open and display raster (pixel) layers using different rendering modes provided by TatukGIS.
SimpleEdit	How to provide editing functionality.
PixelLocate	PixelLocate Sample — Demonstrates reading pixel values from raster layers and displaying pixel data including RGB colors and native channel values.
Encode	Encode sample — demonstrates transparent layer encoding using read/write callbacks.
CuttingPolygon	CuttingPolygon sample — demonstrates how to clip a raster (pixel) layer's rendering to within an arbitrary polygon boundary using TGIS_LayerPixel.CuttingPolygon.
DirectWrite	DirectWrite sample — demonstrates five sequential low-level write techniques on TGIS_LayerSHP: Build (AddShape loop + SaveData), ImportLayerEx (spatial CONTAINS filter), MergeLayerEx (DISJOINT filter), TGIS_LayerVectorDirectWriteHelper (sequential high-performance write), and TGIS_LayerVectorMergeHelper (batch-commit write). Buttons unlock in sequence; output files go into a numbered Shapes{n} directory.
DemOperations	DemOperations sample - demonstrates terrain analysis derived from a DEM raster.
PixelOperations	PixelOperations sample — demonstrates basic raster pixel manipulation and analysis (Delphi/VCL).
Transform	Transform sample - Polynomial georeferencing of a raster image.
CustomPaint	CustomPaint sample — demonstrates custom drawing overlays using paint-hook mechanisms.
PixelEdit	PixelEdit sample - demonstrates how to read and modify raster (pixel) layer data programmatically using TatukGIS.
Interpolation	Interpolation Sample - How to generate a raster grid from vector point data using various spatial interpolation methods.
IsochroneMap	IsochroneMap Sample - Generates isochrone maps showing areas reachable from an origin point within specified time or distance limits.
Viewshed	Viewshed sample — demonstrates line-of-sight terrain analysis using TGIS_Viewshed.
LayerStatistics	LayerStatistics Sample — Demonstrates statistical computation on vector, grid (DEM), and raster (pixel/image) layers with predefined and custom statistical functions.
RasterAlgebra	RasterAlgebra sample - demonstrates how to apply mathematical expressions to raster layers using TGIS_RasterAlgebra to produce derived pixel or grid outputs.
GridToVector	GridToVector sample - demonstrates raster-to-vector conversion using TGIS_GridToPolygon and TGIS_GridToPoint.

Shape operations

InMemory	InMemory sample — demonstrates creating and populating vector layers programmatically at runtime, without loading from files.
Locate	Locate Sample — Demonstrates feature identification and location by finding shapes at the cursor position using spatial queries and pixel-to-coordinate conversion.
SimpleEdit	How to provide editing functionality.
WKT	WKT Sample — Demonstrates parsing and visualization of Well-Known Text (WKT) geometry representations using TGIS_Utils.GisCreateShapeFromWKT.
MultiSelect	Multiselect Sample — Demonstrates multiple feature selection with different selection modes and displaying selected feature attributes in a list and attributes panel.
TrackingTest	TrackingTest sample — demonstrates animated tracking of GPS-like movement (Delphi/VCL).
Relate	Relate Sample — Demonstrates computing spatial relations between two shapes using TGIS_Shape.Relate and DE-9IM (Dimensionally Extended 9-Intersection Model) predicates.
SelectByShape	SelectByShape sample - demonstrates how to select vector features by drawing an arbitrary shape (circle or rectangle) interactively on the map.
Enumerators	Enumerators sample — demonstrates spatial iteration using TGIS_LayerVector.Loop() enumerators.
Grid	Grid Sample - How to manipulate grid (raster/DEM) layer presentation.
DragLabel	DragLabel sample — demonstrates interactive draggable feature labels on maps.
BitmapFill	BitmapFill sample - demonstrates per-shape bitmap fill using a custom PaintShapeEvent callback.
FieldRules	FieldRules sample - Demonstrates field validation and constraint rules for attribute data entry and layer attribute integrity.
CuttingPolygon	CuttingPolygon sample — demonstrates how to clip a raster (pixel) layer's rendering to within an arbitrary polygon boundary using TGIS_LayerPixel.CuttingPolygon.
ShapeOperations	ShapeOperations sample - Interactive geometry transformation of vector shapes.
CustomPaint	CustomPaint sample — demonstrates custom drawing overlays using paint-hook mechanisms.
PixelEdit	PixelEdit sample - demonstrates how to read and modify raster (pixel) layer data programmatically using TatukGIS.
HelloDK	HelloDK - TatukGIS Developer Kernel introductory sample demonstrating core GIS workflows including data loading, layer management, and interactive visualization.

Topology

Topology	Topology Sample - Demonstrates polygon set-algebra operations using TGIS_Topology.
Buffers1	Buffers1 sample — demonstrates spatial buffer operations for proximity analysis.
Buffers2	Buffers2 - Advanced buffer operation with spatial intersection query.
SplitByArc	SplitbyArc Sample — Demonstrates splitting polygon geometries using an interactively drawn line (arc) via TGIS_Topology.SplitByArc.
Relate	Relate Sample — Demonstrates computing spatial relations between two shapes using TGIS_Shape.Relate and DE-9IM (Dimensionally Extended 9-Intersection Model) predicates.

GPS

GPSSimple	GPSSimple sample — demonstrates basic GPS data reception and display (Delphi/VCL).
GPSTracker	GPSTracker sample — demonstrates real-time GPS tracking and visualization (Delphi/VCL).
Snap	Snap Sample — Demonstrates point tracking and snap-to-geometry functionality for constraining moving objects to the nearest feature.

Geocoding & Routing

GeoCoding	GeoCoding Sample - Delphi VCL
TigerGeocoding	How to provide Geocoding using name standardization } unit HelpForm;
OnlineServices	How to utilize TatukGIS online services (tiles, geocoding, routing and isochrone).

Rendering

BitmapFill	BitmapFill sample - demonstrates per-shape bitmap fill using a custom PaintShapeEvent callback.
CustomPaint	CustomPaint sample — demonstrates custom drawing overlays using paint-hook mechanisms.
DragLabel	DragLabel sample — demonstrates interactive draggable feature labels on maps.
DynamicAggregation	DynamicAggregation sample — demonstrates TGIS_DynamicAggregatorFactory for real-time point clustering on a GIS layer.
PaintLabel	PaintLabel sample — demonstrates customizing label rendering and appearance (Delphi/VCL).
Statistic	LayerStatistics Sample — Demonstrates statistical computation on vector, grid (DEM), and raster (pixel/image) layers with predefined and custom statistical functions.
JoinAndChart	JoinAndChart sample — demonstrates attribute joining and proportional symbol charting.
Classification	Classification sample — demonstrates thematic data classification of vector and raster (pixel) layers using the TatukGIS TGIS_ClassificationAbstract API.
RotatedRect	RotatedRect sample — demonstrates custom drawing on the viewer canvas with rotation (Delphi/VCL).

Analysis

BitmapFill	BitmapFill sample - demonstrates per-shape bitmap fill using a custom PaintShapeEvent callback.
DynamicAggregation	DynamicAggregation sample — demonstrates TGIS_DynamicAggregatorFactory for real-time point clustering on a GIS layer.
Hydrology	Hydrology Sample - Demonstrates hydrological analysis tools for terrain and water flow analysis using digital elevation models.
Interpolation	Interpolation Sample - How to generate a raster grid from vector point data using various spatial interpolation methods.
IsochroneMap	IsochroneMap Sample - Generates isochrone maps showing areas reachable from an origin point within specified time or distance limits.
JoinAndChart	JoinAndChart sample — demonstrates attribute joining and proportional symbol charting.
JoinAndRender	JoinAndRender sample — demonstrates attribute joining and data-driven feature styling.
LayerStatistics	LayerStatistics Sample — Demonstrates statistical computation on vector, grid (DEM), and raster (pixel/image) layers with predefined and custom statistical functions.
PixelEdit	PixelEdit sample - demonstrates how to read and modify raster (pixel) layer data programmatically using TatukGIS.
Pipeline	Pipeline sample — demonstrates scripted GIS operations using TGIS_Pipeline.
PixelFilters	PixelFilters sample - demonstrates how to apply image-processing filters to raster (pixel) layers using TatukGIS.
Statistic	LayerStatistics Sample — Demonstrates statistical computation on vector, grid (DEM), and raster (pixel/image) layers with predefined and custom statistical functions.
Triangulation	Triangulation Sample – Demonstrates Delaunay triangulation and Voronoi diagrams.
Viewshed	Viewshed sample — demonstrates line-of-sight terrain analysis using TGIS_Viewshed.

Conversion

projectconvert	ProjectConvert Sample - Converts legacy TatukGIS project files from .ttkgp format to modern .ttkproject format with data preservation.
Reproject	Reproject sample — demonstrates coordinate system transformation and reprojection of geospatial data.
any2any	Any2Any Sample - Command-line utility for converting vector layer data between different GIS file formats with automatic format detection.
Project2Sqlite	project2sqlite sample - Console-based converter for migrating TatukGIS project layers from shapefiles to SQLite database storage.
UDFLayerVector	UDFLayerVector sample — demonstrates User-Defined Format (UDF) custom layer implementation (Delphi/VCL).
GridToVector	GridToVector sample - demonstrates raster-to-vector conversion using TGIS_GridToPolygon and TGIS_GridToPoint.

Printing

PrintPreview	PrintPreview sample — demonstrates print preview and printing maps with layout controls (Delphi/VCL).
PrintPdf	PrintPdf Sample — Demonstrates PDF output from map printing with custom page content and export to PDF format.
TemplatePrint	TemplatePrint Sample — Demonstrates template-based map printing using pre-defined print layouts with configurable map elements, legends, scale bars, and text.
Viewer	CGMViewer sample — demonstrates rendering CGM (Computer Graphics Metafile) symbol files (Delphi/VCL).
SimpleEdit	How to provide editing functionality.

Components

Languages	Languages sample — demonstrates adding multilanguage/localization support (Delphi/VCL).
PrintPreview	PrintPreview sample — demonstrates print preview and printing maps with layout controls (Delphi/VCL).
Legend	Legend Sample - Demonstrates adding and integrating legend controls to display map layer properties and styling information.
DataSet	DataSet sample — demonstrates TGIS_DataSet as a live bridge between a GIS vector layer and a standard data-aware grid (TDBGrid).
Hierarchy	Hierarchy sample — demonstrates layer organization and grouping using TGIS_Hierarchy.
MiniMap	MiniMap sample — demonstrates creating a synchronized overview/minimap window (Delphi/VCL).

Custom events

DragLabel	DragLabel sample — demonstrates interactive draggable feature labels on maps.
PaintLabel	PaintLabel sample — demonstrates customizing label rendering and appearance (Delphi/VCL).
TrackingTest	TrackingTest sample — demonstrates animated tracking of GPS-like movement (Delphi/VCL).
InMemory	InMemory sample — demonstrates creating and populating vector layers programmatically at runtime, without loading from files.
SimpleEdit	How to provide editing functionality.
PaintEvents	PaintEvents Sample — Demonstrates map rendering customization through paint event hooks that allow drawing custom graphics at different stages of the rendering pipeline.

Changing attributes

SimpleEdit	How to provide editing functionality.
WKT	WKT Sample — Demonstrates parsing and visualization of Well-Known Text (WKT) geometry representations using TGIS_Utils.GisCreateShapeFromWKT.
Fields	Fields Sample - Demonstrates how to use field (attribute) properties of a layer.
Grid	Grid Sample - How to manipulate grid (raster/DEM) layer presentation.

Export/Import

ExportToImage	ExportToImage Sample - Demonstrates exporting raster layers and map views to various image formats (JPEG, PNG, TIFF, etc.) with customizable parameters.
Reproject	Reproject sample — demonstrates coordinate system transformation and reprojection of geospatial data.
any2any	Any2Any Sample - Command-line utility for converting vector layer data between different GIS file formats with automatic format detection.
Project2Sqlite	project2sqlite sample - Console-based converter for migrating TatukGIS project layers from shapefiles to SQLite database storage.

Data base operations

SQLLayer	SQLLayer Sample - Demonstrates how to open and display an SQL Layer using TatukGIS DK11.
SQLWizard	How to provide SQL Layer support.
SQLLayerAdvanced	SQLLayerAdvanced sample — demonstrates advanced SQL database layer operations and styling (Delphi/VCL).

Editing

CuttingPolygon	CuttingPolygon sample — demonstrates how to clip a raster (pixel) layer's rendering to within an arbitrary polygon boundary using TGIS_LayerPixel.CuttingPolygon.
SimpleEdit	How to provide editing functionality.

3D

View3D	View3D Sample — Demonstrates 3D visualization of geospatial data including building models, textures, and 3D geometry manipulation.
BIMViewer	BIMViewer Sample — Demonstrates Building Information Model (BIM) visualization and IFC (Industry Foundation Classes) file import with 2D/3D viewing.

Communication

ClientServer

ClientServer Sample - Demonstrates basic client-server GIS architecture with map rendering and network communication over TCP/IP.

Mobile

ViewerLite	ViewerLite Sample - Minimal lightweight map viewer application for displaying GIS data, available for mobile platforms (FMX, WPF, MAUI).
Measure	Measure sample — demonstrates interactive distance and area measurement on a map.
HelloDK	HelloDK - TatukGIS Developer Kernel introductory sample demonstrating core GIS workflows including data loading, layer management, and interactive visualization.
View3D	View3D Sample — Demonstrates 3D visualization of geospatial data including building models, textures, and 3D geometry manipulation.

Managers

WFSManager	How to provide WFS Layer support.
WMTSManager	WMTSManager Sample - Demonstrates WMTS (Web Map Tile Service) integration for querying servers, discovering tile sets, and adding web-based tile layers to maps.
SQLWizard	How to provide SQL Layer support.

AI

AIModelRunner

Sample app for running Python-driven AI Models on TatukGIS Viewer/Layer.

TatukGIS Developer Kernel

User Tools

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