I'm trying to create a tiled grid using google static map images. I use the latitude and longitude in the middle of the tile to request the images (Math found here). They line up perfectly but whenever a label is split between two tiles, the second tile does not show the label
Is there any way to format the url such that the images returned are consistent with inter-tile labels?
Your implementation is against of Terms of Service. You should be aware that stitching static maps images is prohibited in paragraph 10.5 (b) of ToS.
No derivative works. You will not modify or create a derivative work based on any Content unless expressly permitted to do so under these Terms. For example, the following are prohibited: (i) creating server-side modification of map tiles; (ii) stitching multiple static map images together to display a map that is larger than permitted in the Maps APIs Documentation; or (iii) tracing or copying the copyrightable elements of Google’s maps or building outlines and creating a new work, such as a new mapping or navigation dataset.
Google recently updated Terms of services, but you can find the mentioned text in
https://developers.google.com/maps/terms-20180207#10-license-restrictions
