New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Allow drawing image-based base maps #7

Open

nighthawk opened this issue Dec 10, 2022 · 1 comment

Labels

Member

nighthawk commented Dec 10, 2022

Currently there's only support for drawing GeoJSON, i.e., lines and polygons, but it'd be great to draw images:

nighthawk added the enhancement label

nighthawk changed the title ~~Allow drawing image-based basemaps~~ Allow drawing image-based base maps

Member Author

nighthawk commented Dec 16, 2022

One way to do this (see Map-Projections repo):

Go through each pixel to be drawn
Use the inverse (Add inverse function to Projection protocol #6) function to get the un-projected coordinate
Look-up that coordinate in the reference image and get the average colour
Draw that colour

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment