How to add a map to your solution

A how-to guide for adding a map to your solution

Introduction

Would you like to have a map to select a geographical location to use in your solution logic? Then add Map to your solution by following these steps.

Prerequisites

You configured the frames and routes for your solution.
You configured the relevant contents such as the model(s), viewer(s) and datastore.
You have a Rhino Grasshopper definition using the Packhunt input components.

1. Add a map

Create a Map within the relevant frame.
Optionally, define its bounds which define the visible area on the map.
Optionally, add a placeMarker which allows you to select a location.

The configuration should look similar to the example below:

my-map:
  kind: Map
  bounds: #Optional
    bottomLeft:
      latitude: 35.686200
      longitude: -11.350331
    topRight:
      latitude: 55.187442
      longitude: 27.035105
  placeMarker: #Optional
    title: Specify your location.
    text: Click 'ok' to specify your location.
    ok: OK
    cancel: Cancel

To transfer the selected point coordinates in the map to the model, the model should subscribe to the map.

Define the subscription to the map under the model.
In the subscription, specify the target frame and control panel.
Define the name of the input that will be sent to your model once a location is selected, with setInputFromMarkers property.

❗ The name given as setInputFromMarkers should match the input name in Grasshopper.

The configuration should look similar to the example below:

my-model:
  kind: model
  modelFile: my-grasshopper-file.gh
  subscribe:
    kind: Map
    source: my-map
    frame: home-frame
    setInputFromMarkers: location # should match the input name in Grasshopper

3. Optionally use the location input in Grasshopper

The location input will be sent to your model in a JSON as shown below.

"location": {
  "id": 1,
  "longitude": 9.7,
  "latitude": 42.7
}

To access the longitude and latitude values, the steps below should be followed:

Place a Packhunt input component and name it according to the input name defined in the previous step.
Connect the input component to the Packhunt Item from JSON component.
Set the key to latitude and/or longitude.
Use the values for your Grasshopper logic.