Tile selection guide-DataV(DataV)-阿里云帮助中心

The 3D City Builder in DataV-Board uses spatial data tiling technology. It supports the dynamic loading and rendering of three tile types: raster, terrain, and 3D. This topic describes the technical features of tiles and their common application scenarios.

Tile overview

The 3D City Builder uses intelligent tiling technology to automatically split spatial data, such as maps, terrain, and building models, into standard data blocks. It dynamically loads content at different levels of detail based on the user's viewpoint. This enables a seamless display, from a city panorama to architectural details. This technology supports the processing of three data types: raster maps, terrain elevation, and 3D models, which ensures the smooth rendering of large-scale scenarios.

Tile selection guide

Quick selection: The following table compares the three tile types in DataV-Board and their application scenarios.

Tile type	Description	Format	Typical application case	Supported editions
Raster tile	Raster tiles split map data into image blocks of equal size, such as 256 × 256 pixels, like dividing a large map into small puzzle pieces. Each tile contains image information for a specific area and zoom level. They feature fast loading speeds and strong compatibility, making them a fundamental technology for Internet map services.	XYZ raster tile	Internet map service	DataV-Board Professional and Premium Editions
		ArcGIS raster tile	Smart city management system	DataV-Board Premium Edition
		SuperMap REST raster tile	Domestic GIS projects
		WMS raster tile	Environmental monitoring heatmap
		WMTS raster tile	National public service platform for geographic information
Terrain tile	Terrain tiles are designed to process elevation data. They convert surface undulation information into gridded heightmaps or quantized terrain blocks. The level of detail is automatically adjusted based on the viewing distance. This allows them to display both the overall landform and clear local terrain features. They are often used as base data for 3D geographic scenarios.	Heightmap terrain tile	Topography and landform analysis
Terrain tile		Quantized-mesh terrain tile	Base terrain for 3D cities
3D tile	3D tiles are a technology used to load 3D models such as buildings and bridges. They use formats like 3D Tiles or S3M to split large-scale models into spatial units and attach attribute information. They are intelligently loaded based on the user's viewpoint. This allows for both smooth display of the entire city panorama and clear rendering of individual building details. It is a key technology for digital cities and 3D simulations.	3D Tiles oblique photography	Digitalization of tourist attractions
		S3M oblique photography	Real-world model of a smart campus
		S3M BIM	Smart construction site supervision
		S3M pipe network	Urban underground pipe network management

Add tiles

Before you start, log on to the DataV console and create a 3D city project.

Hover over the target 3D city project and click Edit to enter the scenario editor.
In the scenario editor, click the icon in the upper-right corner of the Layers panel. In the pop-up window that appears on the right, select Select Widget to open the Select Widget dialog box.
In the dialog box, switch the tabs at the top to select different widget types, such as raster tiles or terrain tiles. In the widget list, select one or more sub-widgets, or click Select All. Click Confirm to add the widgets.

Note
After they are added, raster tile and terrain tile sub-widgets act as global widgets and are displayed in all scenarios. You can set their data content and display parameters in the widget configuration panel.
The new raster tile and terrain tile sub-widgets appear in the Global Layers list on the left. The 3D tile sub-widgets appear in the Scenario Layer List.