Blazor Maps Example - Map Projections

This sample demonstrates map rendering with various projection types using members of the United Nations Security Council as an illustrative data set. It contrasts projection effects on geographic presentation and uses color mapping and interactive tooltips to emphasize membership categories and regional context. The sample distinguishes permanent and elected members so you can evaluate how styling and projection interact with symbol placement and label legibility.

Configure projections and appearance by:

• Setting the ProjectionType property to select the projection that best suits your analytical goals and minimize unwanted distortion.
• Applying MapsShapeColorMapping to assign colors to shapes for categorical visualization and consistent legend-driven interpretation.
• Enabling interactive tooltips to reveal country name, membership status, and concise metadata on hover or tap.

When choosing a projection, consider the map extent and which spatial properties (area, shape, direction) you must preserve. Test centering and scale for the region of interest to avoid misleading visual cues. Use color mapping with an explicit legend and high-contrast palettes to ensure categories are immediately identifiable and accessible.

Tooltips surface contextual details without adding persistent clutter; they appear on pointer hover and on tap for touch devices. Provide concise tooltip content, include accessible labels, and verify keyboard focusability so information remains available to users of assistive technologies.

Combine projection selection, color mapping, and clear tooltip text to create an informative, accessible visualization that scales across viewports. Examples include code snippets and property references for direct implementation. For complete guidance on available projection types and implementation examples, see the projection type documentation.