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Overview

The ASP.NET Core Blazor Maps component is ideal for rendering maps from GeoJSON data or other map providers like OpenStreetMap and Bing Maps. Its rich feature set includes markers, labels, bubbles, navigation lines, legends, tooltips, zooming, panning, drill down, and much more.


GeoJSON layer

Bind GeoJSON data to the maps to render any geometric shape in SVG (Scalable Vector Graphics) for powerful data visualization of shapes. For example, you can render world map or US map and customize it to the desired look using built-in options in the Blazor Maps component. You can also add any number of layers to the maps.


Geo-imagery visuals

Built-in support for external geospatial imagery services, such as Bing maps and OpenStreetMap, is used to visualize satellite, aerial, and street maps, or other kinds of imagery tiles without any external shape inputs. Apart from Bing maps and OpenStreetMap, you can also render maps from various map providers, for example, Google Maps. By using these external services, the map data can be located easily.


Multi-layers

Using sublayer, you can create a map with multiple geometric layers in a single view. For example, render additional geographic features of a country such as rivers, valleys, and more as a sublayer. You can also drill each layer.

Blazor Maps is rendered with multiple layers


Marker

You can denote a place with symbols or mark messages at the desired latitude and longitude of a location on a map using markers. For example, you can indicate a particular place on the US map using a balloon marker shape. Place any HTML element as a marker and also add multiple markers to the map.

Blazor Maps is rendered with multiple markers


Marker clustering

You can display multiple markers in the same location by clustering the markers when they overlap one another. For example, you can use markers to indicate the top 50 cities in the world. If any marker overlaps with another, it will be clustered and the total number of markers will be displayed over the cluster.

Blazor Maps is rendered with marker clustering option


Data label

Data labels on the maps provide identification for the shapes by displaying their names. Trim or hide the labels at intersections with other labels and if they exceed shape bounds.

Blazor Maps is rendered with data labels, which displays the name of the shapes


Bubble

Create a simple Blazor map with bubbles to denote some additional information about shapes such as population density, land area, and more. Bubbles are rendered with various magnitudes and colors based on the underlying data values of the shape.

Blazor Maps is rendered with multiple bubbles


You can denote flight route or ship route on a geographic map between two places with navigation lines. It also acts as the connector line that links points on a map. The navigation lines can also be curved.

Blazor Maps is rendered with navigation lines


Color mapping

Categorize the shapes on a map by customizing their color based on the underlying value. The Blazor Maps component supports two types of color mapping, range color mapping and equal color mapping.

Range color mapping is applied for the shapes in Blazor Maps

Range color mapping

You can apply colors to the shapes by comparing their value with a desired numeric range. For example, apply colors to the states in the US based on population density.

Equal color mapping is applied for the shapes in Blazor Maps

Equal color mapping

Differentiate a shape’s fill based on its underlying value and color, using equal color mapping. For example, apply colors to the states in the US based on a winning candidate.

Desaturation color mapping is applied for the shapes in Blazor Maps

Desaturation color mapping

You can change the opacity of the shapes by comparing their value with a desired numeric range. Minimum and maximum opacity of the shapes can be customized

Desaturation color mapping with multiple colors are applied for the shapes in Blazor Maps

Desaturation with multiple colors

You can apply colors to the shape from a gradient by comparing their value with a desired numeric range. Any number of colors can be specified for creating the gradient.


Legend

You can use legends to provide valuable information for interpreting the map with various colors, shapes, or other identifiers based on data and application needs. Interactive Blazor Maps component supports two types of legends: Default and interactive.

Blazor Maps is rendered with default legend items

Default

A map with legend contains swatches of symbols with descriptions to denote the categories of shapes.

Blazor Maps is rendered with interactive legend

Interactive

Use a map with an interactive legend to find the range of an underlying shape’s value on mouse hover.


Zooming and panning

Zoom the map for close-up analysis by pinching the map, scrolling the mouse wheel, clicking the shapes, or by using zooming toolbar; and pan the map for easy navigation across regions. You can also change the zoom level of the initial rendering.

Zooming and panning is enabled in the Blazor Maps


Tooltip

Displays the details about the shape value through the tooltip by hovering the mouse over the shape. Similarly, the tooltip is also displayed for markers and bubbles on a map.

Displays a tooltip on moving mouse over the Blazor Maps


Drill-down

You can drill-down the rendered maps to display a different shape data located on another layer. For example, in the initial layer you can render the world map and on clicking a particular continent, render it separately on another layer.

Blazor Maps is rendered with multiple layers and enabled drilldown option


Selection and highlight

Select a particular shape on mouse click and highlight on mouse hover to bring the center of attraction over other shapes on a map.

Particular shape is selected in the rendered Blazor Maps


Custom shapes

Create a map with custom shapes by rendering your own GeoJSON data to indicate building infrastructure, points of interest, flight/bus seat arrangement, cricket stadium, and more useful information.

Bus seat selection is simulated in the Blazor Maps


Annotation

Display any HTML element as an annotation at a specific point of interest on a map. For example, place a direction compass image on the map using annotation. You can also add multiple annotations to a map.

Blazor Maps is rendered with annotation which has direction compass image


Projection

You can change the projection of the default rendering map based on your need. The Blazor Maps component supports various types of projections namely, Mercator, Rectangular, Miller, Eckert3, Eckert5, Eckert6, and Winkel3.


Title and subtitle

Add title and subtitle to visualize additional information on Maps. You can also customize the font and alignment of the title and subtitle on a map.

Blazor Maps is rendered with title and subtitle


Appearance

Customize the look and feel of a map by changing the fill color, background, border, and opacity of shapes. Almost all the elements in the Maps are customizable. The Blazor Maps component also provides built-in palettes with customizable options, by default.

Blazor Maps is rendered with customized appearance


Exporting

Export or print the rendered Blazor Maps to save a local copy for further use.

Export Blazor Maps illustration

Export

Exports the maps to a PDF document or in image formats such as SVG, PNG, and JPEG in client-side.

Print Blazor Maps illustration

Print

Prints the rendered maps directly from the browser.


Touch and Browser support

The interactive maps component also supports touch interactions.

Blazor Maps Touch illustration

Touch support

All the features of Maps will work on touch devices with zero configuration. Use the touch features such as tooltip, drill-down, selection, highlight, pinch zooming, single tap zoom, and double tap zoom without any customization.

Blazor Maps Responsive illustration

Responsive

You can view Maps component on various devices. Also hide specific elements in the maps for particular screen sizes by making very minimal changes in the map events.

Blazor Maps Cross browser illustration

Cross browser support

You can render Maps component in all the modern browsers.


Other supported frameworks

As a pure JavaScript component, our Maps integrates easily with any web framework.


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