Vector Tile FAQ
Regarding Data Coordinate System Issues:
| Q: | The generation fails immediately after starting the generate vector tile process. |
| A: | Please verify if the map data contains coordinate systems that cannot be converted to the map's display coordinate system, or planar coordinate systems. If such cases exist, perform coordinate system processing on the data to ensure proper conversion to the map's display coordinate system. |
Regarding Missing Layers in Vector Tiles:
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| Q: | The layer using polygon unique value thematic maps with offset settings to simulate 3D building shadows disappears in vector tiles, as shown in Figure 1 above. |
| A: | Currently, MapBox does not support offset settings for unique value thematic maps. |
| Q: | Certain layers in the map are not displayed in the generated vector tiles. |
| A: | This typically occurs because vector tiles are displayed based on MapBox styles, which may not support some SuperMap symbols or layer settings. Please check if the map uses unsupported style configurations, such as incompatible thematic maps, or whether the missing layers are CAD layers (vector tiles do not support CAD layers). |
Regarding Feature Distortion in Vector Tiles:
| Q: | Features in generated vector tiles appear distorted, particularly administrative boundaries and river features. |
| A: | Feature distortion mainly results from node simplification during vector tile generation for densely-noded objects. It is recommended to use objects with appropriate complexity in maps at small scales, as exemplified in cartography best practices under "reducing data complexity". If distortion occurs when zooming in, it indicates insufficient tile scale levels. Simply increase the scale levels for tile generation as shown below. |
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Related Topics
Vector Tile Mapping Considerations