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Render custom data on a raster map

  • Article
  • 5 minutes to read

This article describes how to use the static image service with image composition functionality. Image composition functionality supports the retrieval of static raster tile that contains custom data.

The following are examples of custom data:

  • Custom pushpins
  • Labels
  • Geometry overlays

Tip

To show a simple map on a web page, it's often more cost effective to use the Azure Maps Web SDK, rather than to use the static image service. The web SDK uses map tiles; and unless the user pans and zooms the map, they will often generate only a fraction of a transaction per map load. The Azure Maps web SDK has options for disabling panning and zooming. Also, the Azure Maps web SDK provides a richer set of data visualization options than a static map web service does.

Prerequisites

  1. Make an Azure Maps account
  2. Obtain a primary subscription key, also known as the primary key or the subscription key.

This article uses the Postman application, but you may use a different API development environment.

We'll use the Azure Maps Data Service APIs to store and render overlays.

Render pushpins with labels and a custom image

Note

The procedure in this section requires an Azure Maps account in the Gen 1 or Gen 2 pricing tier. The Azure Maps account Gen 1 Standard S0 tier supports only a single instance of the pins parameter. It allows you to render up to five pushpins, specified in the URL request, with a custom image.

Get static image with custom pins and labels

To get a static image with custom pins and labels:

  1. In the Postman app, select New.

  2. In the Create New window, select HTTP Request.

  3. Enter a Request name for the request, such as GET Static Image.

  4. Select the GET HTTP method.

  5. Enter the following URL (replace {Your-Azure-Maps-Primary-Subscription-key} with your primary subscription key):

    https://atlas.microsoft.com/map/static/png?subscription-key={Your-Azure-Maps-Primary-Subscription-key}&api-version=1.0&layer=basic&style=main&zoom=12&center=-73.98,%2040.77&pins=custom%7Cla15+50%7Cls12%7Clc003b61%7C%7C%27CentralPark%27-73.9657974+40.781971%7C%7Chttps%3A%2F%2Fraw.githubusercontent.com%2FAzure-Samples%2FAzureMapsCodeSamples%2Fmaster%2FAzureMapsCodeSamples%2FCommon%2Fimages%2Ficons%2Fylw-pushpin.png

  6. Select Send.

  7. The service returns the following image:

    A custom pushpin with a label.

Upload pins and path data

Note

The procedure in this section requires an Azure Maps account Gen 1 (S1) or Gen 2 pricing tier.

In this section, we'll upload path and pin data to Azure Map data storage.

To upload pins and path data:

  1. In the Postman app, select New.

  2. In the Create New window, select HTTP Request.

  3. Enter a Request name for the request, such as POST Path and Pin Data.

  4. Select the POST HTTP method.

  5. Enter the following URL (replace {Your-Azure-Maps-Primary-Subscription-key} with your primary subscription key):

    https://us.atlas.microsoft.com/mapData?subscription-key={Your-Azure-Maps-Primary-Subscription-key}&api-version=2.0&dataFormat=geojson

  6. Select the Body tab.

  7. In the dropdown lists, select raw and JSON.

  8. Copy the following JSON data as data to be uploaded, and then paste them in the Body window:

    {
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Polygon",
        "coordinates": [
          [
            [
              -73.98235,
              40.76799
            ],
            [
              -73.95785,
              40.80044
            ],
            [
              -73.94928,
              40.7968
            ],
            [
              -73.97317,
              40.76437
            ],
            [
              -73.98235,
              40.76799
            ]
          ]
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "LineString",
        "coordinates": [
          [
            -73.97624731063843,
            40.76560773817073
          ],
          [
            -73.97914409637451,
            40.766826609362575
          ],
          [
            -73.98513078689575,
            40.7585866048861
          ]
        ]
      }
    }
  ]
}

  9. Select Send.

  10. In the response window, select the Headers tab.

  11. Copy the value of the Operation-Location key, which is the status URL. We'll use the status URL to check the status of the upload request in the next section. The status URL has the following format:

https://us.atlas.microsoft.com/mapData/operations/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx?api-version=2.0

Tip

To obtain your own path and pin location information, use the Data Upload API.

Check pins and path data upload status

To check the status of the data upload and retrieve its unique ID (udid):

  1. In the Postman app, select New.

  2. In the Create New window, select HTTP Request.

  3. Enter a Request name for the request, such as GET Data Upload Status.

  4. Select the GET HTTP method.

  5. Enter the status URL you copied in Upload pins and path data. The request should look like the following URL (replace {Your-Azure-Maps-Primary-Subscription-key} with your primary subscription key):

      https://us.atlas.microsoft.com/mapData/operations/{statusUrl}?api-version=2.0&subscription-key={Your-Azure-Maps-Primary-Subscription-key}

  6. Select Send.

  7. In the response window, select the Headers tab.

  8. Copy the value of the Resource-Location key, which is the resource location URL. The resource location URL contains the unique identifier (udid) of the drawing package resource.

    Copy the resource location URL.

Render uploaded features on the map

To render the uploaded pins and path data on the map:

  1. In the Postman app, select New.

  2. In the Create New window, select HTTP Request.

  3. Enter a Request name for the request, such as GET Data Upload Status.

  4. Select the GET HTTP method.

  5. Enter the following URL to the Render Service (replace {Your-Azure-Maps-Primary-Subscription-key} with your primary subscription key and udid with the udid of the uploaded data):

    https://atlas.microsoft.com/map/static/png?subscription-key={Your-Azure-Maps-Primary-Subscription-key}&api-version=1.0&layer=basic&style=main&zoom=12&center=-73.96682739257812%2C40.78119135317995&pins=default|la-35+50|ls12|lc003C62|co9B2F15||'Times Square'-73.98516297340393 40.758781646381024|'Central Park'-73.96682739257812 40.78119135317995&path=lc0000FF|fc0000FF|lw3|la0.80|fa0.30||udid-{udId}

  6. The service returns the following image:

    Render uploaded data in static map image.

Render a polygon with color and opacity

Note

The procedure in this section requires an Azure Maps account Gen 1 (S1) or Gen 2 pricing tier.

You can modify the appearance of a polygon by using style modifiers with the path parameter.

To render a polygon with color and opacity:

  1. In the Postman app, select New.

  2. In the Create New window, select HTTP Request.

  3. Enter a Request name for the request, such as GET Polygon.

  4. Select the GET HTTP method.

  5. Enter the following URL to the Render Service (replace {Your-Azure-Maps-Primary-Subscription-key} with your primary subscription key):

    https://atlas.microsoft.com/map/static/png?api-version=1.0&style=main&layer=basic&sku=S1&zoom=14&height=500&Width=500&center=-74.040701, 40.698666&path=lc0000FF|fc0000FF|lw3|la0.80|fa0.50||-74.03995513916016 40.70090237454063|-74.04082417488098 40.70028420372218|-74.04113531112671 40.70049568385827|-74.04298067092896 40.69899904076542|-74.04271245002747 40.69879568992435|-74.04367804527283 40.6980961582905|-74.04364585876465 40.698055487620714|-74.04368877410889 40.698022951066996|-74.04168248176573 40.696444909137|-74.03901100158691 40.69837271818651|-74.03824925422668 40.69837271818651|-74.03809905052185 40.69903971085914|-74.03771281242369 40.699340668780984|-74.03940796852112 40.70058515602143|-74.03948307037354 40.70052821920425|-74.03995513916016 40.70090237454063
&subscription-key={Your-Azure-Maps-Primary-Subscription-key}

  6. The service returns the following image:

    Render an opaque polygon.

Render a circle and pushpins with custom labels

Note

The procedure in this section requires an Azure Maps account Gen 1 (S1) or Gen 2 pricing tier.

You can modify the appearance of the pins by adding style modifiers. For example, to make pushpins and their labels larger or smaller, use the sc "scale style" modifier. This modifier takes a value that's greater than zero. A value of 1 is the standard scale. Values larger than 1 will make the pins larger, and values smaller than 1 will make them smaller. For more information about style modifiers, see static image service path parameters.

To render a circle and pushpins with custom labels:

  1. In the Postman app, select New.

  2. In the Create New window, select HTTP Request.

  3. Enter a Request name for the request, such as GET Polygon.

  4. Select the GET HTTP method.

  5. Enter the following URL to the Render Service (replace {Your-Azure-Maps-Primary-Subscription-key} with your primary subscription key):

    https://atlas.microsoft.com/map/static/png?api-version=1.0&style=main&layer=basic&zoom=14&height=700&Width=700&center=-122.13230609893799,47.64599069048016&path=lcFF0000|lw2|la0.60|ra1000||-122.13230609893799 47.64599069048016&pins=default|la15+50|al0.66|lc003C62|co002D62||'Microsoft Corporate Headquarters'-122.14131832122801  47.64690503939462|'Microsoft Visitor Center'-122.136828 47.642224|'Microsoft Conference Center'-122.12552547454833 47.642940335653996|'Microsoft The Commons'-122.13687658309935  47.64452336193245&subscription-key={Your-Azure-Maps-Primary-Subscription-key}

  6. Select Send.

  7. The service returns the following image:

    Render a circle with custom pushpins.

  8. Now we'll change the color of the pushpins by modifying the co style modifier. If you look at the value of the pins parameter (pins=default|la15+50|al0.66|lc003C62|co002D62|), you'll see that the current color is #002D62. To change the color to #41d42a, we'll replace #002D62 with #41d42a. Now the pins parameter is pins=default|la15+50|al0.66|lc003C62|co41D42A|. The request looks like the following URL:

    https://atlas.microsoft.com/map/static/png?api-version=1.0&style=main&layer=basic&zoom=14&height=700&Width=700&center=-122.13230609893799,47.64599069048016&path=lcFF0000|lw2|la0.60|ra1000||-122.13230609893799 47.64599069048016&pins=default|la15+50|al0.66|lc003C62|co41D42A||'Microsoft Corporate Headquarters'-122.14131832122801  47.64690503939462|'Microsoft Visitor Center'-122.136828 47.642224|'Microsoft Conference Center'-122.12552547454833 47.642940335653996|'Microsoft The Commons'-122.13687658309935  47.64452336193245&subscription-key={Your-Azure-Maps-Primary-Subscription-key}

  9. Select Send.

  10. The service returns the following image:

    Render a circle with updated pushpins.

Similarly, you can change, add, and remove other style modifiers.

Next steps