Forum Discussion

Anonymous's avatar
Anonymous
Not applicable
9 years ago
Solved

Load GeoJson Map to capabilities.json

Hello,   I'm currently developing a custom visual, so I'm looking to load a geojson map through capabilities.json. My question is: how can I achieve that ? Shall I just consider the map as measure ...
Show and Tell
  • v-viig's avatar
    v-viig
    8 years ago

    Regarding the first question you should follow these steps:

    • Take a look at this topic to find out more about JS File API
    • Define a text property at capabilities.json

     

    "objects": {
    "internalState": {
        "displayName": "Internal State",
        "properties": {
            "geojsonMap": {
                "displayName": "geojsonMap",
                "type": {
                    "text": true
                }
            }
        }
    }
}
    function save(host: IVisualHost, value: string) {
    host.persistProperties(<VisualObjectInstancesToPersist>{
        merge: [{
            objectName: "internalState",
            selector: null,
            properties: {
                geojsonMap: value || ""
            }
        }]
    });
}

     

    Regarding the second question.

    You should prepare type definitions for you function. Another way is to use TS file instead of JS.

     

    Ignat Vilesov,

    Software Engineer

     

    Microsoft Power BI Custom Visuals

    [email protected]

Anonymous's avatar
Anonymous
Not applicable
9 years ago

v-viig thank you for your answer

so what are the alternatives shall I load my map from external ressource with https ? is there any alternative ? Can I load the map from the field pane ? There is already a visual (Shape map) that uses loading through Format Pane. isn't it possible for everybody ? Can't I simply include my map as a js code inside the dependance node_modules and include it in pbiviz.json ?

v-viig's avatar
v-viig
Community Champion
9 years ago

It isn't possible for custom visuals unfortunately.

 

There're a few options:

  • Load it from an external resource that uses HTTPS
  • Keep maps in Power BI data-set and then apply data to the visual. The data would be avialable in the update method
  • You can use JS File API to load from local device/PC
  • Keep it in an external JS and include into pbiviz.json

 

Ignat Vilesov,

Software Engineer

 

Microsoft Power BI Custom Visuals

[email protected]