(Gramps version : AIO64-5.1.1-1, Operating System: Win10) Hello, I’ve found that geographic map web site and would know if it is possible to add it to the Gramps Geography view? [image] France 1750 - David Rumsey Historical Map Collection URL looks like that wh…

[image] PLegoux: France 1750 - David Rumsey Historical Map Collection Impossible to do. See the feature request: #4782 The map format is incompatible with the osm-gps-map library. I asked to the géoportail (IGN) . I never received a correct answer.

I downloaded the whole map from cassini and its size is around 8.5gb. If someone can transform this hierarchy from an image size of 512x512 to a size of 256x256, we might have a cassini map available in gramps. A script to do that should be very interesting. Don’t forget the format must be #Z/#Y/#…

I’m not sure this what you want to do but XnView, freeware for any OS flavour, have a batch function. Select pictures you want to change, i.e to resize them, define wanted ratio, here 50%, define an output directory if you want and let’s go.

[image] PLegoux: XnView XnView is not available on linux. I have 182000 images to convert :wink: The real problem is to divide an image in 4 parts and to rename them.

I try this batch on one 500x500 px square picture: export 1/4 left top to filename_1 1/4 right top to filename_2 etc [image] [image] Original: [test 4 x4] Automaticaly cutted parts: [test 4 x4_1] [test 4 x4_2] [test 4 x4_3] [test 4 x4_4] If you put them side by side: ![test 4 x4_1|250…

This is a GUI application. Does this application exist in a “batch” way? 182,000 images are impossible to divide with this tool. It would take too long. After that, the problem will be to manage the hierarchical place of these images in #Z/#Y/#X I think it will be a very difficult and long task. X…

[image] SNoiraud: We can do that with : convert -crop 256x256 img.jpg img_%d.jpg Yes, that works. Need to make a script to create all images. I think it will be a very long process. The problem is not to divide the images, but to recreate the image tree.

I don’t know why you need to crop images but I find this, IIIF and a python library to use this normalization. It is used by Ligeo [fr], a french company which works for some french archives centers to crop registers images in little parts to display them more fastly. Does this could help you?

I don’t want to crop the images but to divide them. gramps uses a library which uses the formats provided by openstreetmap or googlemap, ie: http://x.y.z/#Z/#Y/#X #Z is the zoom. #X, # Y is the position of the tile on the map. each tile is size 256x256 The rumsey site uses an alternate access m…

Adding a map to the Geography View

Help

GeorgeWilmes November 21, 2020, 10:15pm 2

@PLegoux, you might also like mapire.eu. See also this older discussion.

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Adding a map to the Geography View

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