How do I extract the coordinates from the response content in navigation

[Ria_Das]

Yes I did

[SteveJG]

Thank you. This means Adam will have to convert All the directions to a List to obtain the results of the FeatureCollection Coordinates.
because using a dictionary will not provide the first item in the FC coordinates.

[SteveJG]

perhaps

[ABG]

@SteveJG

FeatureCollections start at zero.

Show us?

[SteveJG]

@ABG

Show us?

oh ye agnostics

How do I achieve turn by turn navigation on AI?

Actually, this is not true. I specifically implemented the ResponseContent property that returns the GeoJSON response of the service as a JSON dictionary. ORS returns information about list of steps and each step structure contains the text of the step and the indices of the waypoints that indicate the segment associated with that step. For each step, you could extract the end waypoint index and use that to look up the lat/long in the points list, e.g.: { "type":"FeatureCollection", "featu…

Note that the waypoint numbers are 0-indexed whereas lists in App Inventor are 1-based, so you will need to add 1 to each waypoint index of interest to get the corresponding point in the coordinates array

[TIMAI2]

Understood, but we have an AI2 dictionary (of "dictionaries" and "lists") so when you break it down the indexes will start at 1 ?

[ABG]

Okay, will remember that if ever using values of tag 'waypoints'. But the domain of AI2 list indices remains 1,2,3,... as used in a Select Item from List block, though you might have to adjust waypoint numbers to fit into that domain.