[Qgis-user] trouble adding a basemap from a WMTS source

[Stephen Sacks]

My project CRS is EPSG:2263;  all 21 layers were created in this project 
with CRS   EPSG:2263  , which seems appropriate for a public park in 
Brooklyn, NY.  If I use Google Satellite Hybrid as basemap, everything 
looks to be in the right place.  I would like to replace the Google 
basemap with one of many maps available from the New York City 
Department of Information Technology & Telecommunications (DOITT 
https://maps.nyc.gov/tiles/#basemap-layers-wmts).   But after many 
tries, all I get is a totally blank layer.
    Here, in detail, is what I  have done:

1. right-click on WMS/WMTS in browser and choose New Connection
2. name box:  DOITT Monday
3. URL: https://maps.nyc.gov/wmts/1.0.0/?REQUEST=getcapabilities
4. leave configuration default:  No Authentication
     leave HTTP and options blank
5. click OK
6. "DOITT Monday" appears as a new item in browser under WMS/WMTS
7.  there are 15 sub-items under  DOITT Monday.  The CRS for each of 
them is EPSG:900913 , although the DOITT web  page led me to expect 
4326  or 3857
8. I drag one of them ("basemap") onto the map canvas; right-click on it 
and set its CRS to EPSG:2263.  The project CRS remains 2263.
9. I see a msg at the top of the canvas:  "Used a ballpark transform 
from EPSG:2263 to EPSG:900913"  , which seems to me to be the opposite 
of what I asked for
10.  the added layer appears totally blank.  Toggling its checkmark in 
the layer panel has no effect.  Zoom-to-layer makes the scale go to a 
nine-digit number.  Zoom to 1:100 has no effect.
11. I tried again, with a new, blank project, with project CRS set to 
EPSG:900913.  I added one layer by dragging "basemap" from "DOITT 
Monday" onto the canvas.  The canvas remained blank.  I added one small 
layer from my real project, transformed it to 900613, and "zoomed  to 
layer" so as to focus on part of my park. My  layer appeared but still 
no visible basemap.

  What am I doing wrong?   Thanks for any advice.
           Steve

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