Web Design Discussion > General Web Design Discussion
Opacity of base maps
mapcat:
How possible would it be to make the opacity of the base maps user-controlled? For example, the US Census Bureau's TIGERWeb features an opacity slider on its maps.
https://tigerweb.geo.census.gov/tigerweb/
(expand any category in the layers menu to see it)
Jim:
Do you mean the background map tiles? If so, only if Google's API has that level of control, I think.
--- Quote from: mapcat on February 29, 2016, 07:59:12 pm ---
How possible would it be to make the opacity of the base maps user-controlled? For example, the US Census Bureau's TIGERWeb features an opacity slider on its maps.
https://tigerweb.geo.census.gov/tigerweb/
(expand any category in the layers menu to see it)
--- End quote ---
mapcat:
--- Quote from: Jim on February 29, 2016, 08:11:45 pm ---Do you mean the background map tiles? If so, only if Google's API has that level of control, I think.
--- End quote ---
That's right. Thanks.
theFXexpert:
Somewhat relevant: I submitted a pull request that implements a blank map layer as described in this issue.
https://github.com/TravelMapping/Web/pull/46
After playing around with Chrome's JS console, google does have functions for setting opacity for defined map types: map.mapTypes.Mapnik.setOpacity(0.5) for example.
I have only been able to get it to work with the MQOpenMap, MQOpenSat, and Mapnik layers. For whatever reason this doesn't work on google's built-in layers.
Jim:
--- Quote from: theFXexpert on March 02, 2016, 11:01:26 am ---Somewhat relevant: I submitted a pull request that implements a blank map layer as described in this issue.
https://github.com/TravelMapping/Web/pull/46
--- End quote ---
Thanks, I hope to get this and the other items that have been submitted tested out and (if all seems OK) live on the site in the next few days.
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