Managing point snapping and creating сustom isochrone polygons

openrouteservice isochrones
1

Hello everyone. When I put a point on a location in the graphical web interface, my point moves and the polygon moves too and is built along the way. Questions:

  1. Why does this happen?
  2. Is it possible to build a polygon relative to my location as I want and not have it shift to determine total_pop? For example, when I set the location, it did not move and the polygon was built relative to its center in different directions, for example for 1 minute of time? Is it possible to do this via api?
2

Hi @Pavlo_Kuryliak,

  1. could you provide a screencapture/shot of what happens or the url to the relevant app?
  2. That’s not possible. For that you could just get the datasource and do the analysis with adjusted polygons e.g. in QGIS

Best regards

3

Thanks for the previous reply!)

here is the photo -

im-1
im-11365×610 122 KB

im-2
im-21352×616 148 KB

im-3
im-31280×720 157 KB

1 image is how I set the cursor
2 image - how it moves
3 image - I would like to know the population in this area so that the radius from my place that I insert shows the population (api - total_pop).

4

That’s because the startpoint is snapped to the road network (as that’s where you ususally would like to calculate the reachability from.

The population is always only available for the generated polygons. You can’t get population data for a custom area.
So you definitely need to look into point 2 of my previous answer.

Best regards