| [08:12:22] | <farmBOT> | @farmOS@fosstodon.org => The #farmOS monthly community call is today at 2pm Eastern. All are welcome! https://farmos.org/community/monthly-call/ => https://fosstodon.org/@farmOS/112761422797293057 |
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| [15:06:26] | <paul121[m]> | Soo yea! The map `canvas.toDataURL('image/jpeg')` worked! I could then put it into this site and get my image (easiest way to test): https://base64.guru/tools/data-url-to-image |
| [15:06:26] | <paul121[m]> | But... that only got the vectors from my map. There is a separate `canvas` element for the background/satellite image. So it looks like there might be multiple `canvas` elements within an open layers map, maybe a separate one for each base + vector layer? Will have to investigate more, but looks like this is even simpler than we thought |
| [15:07:03] | <paul121[m]> | We could probably provide a "download jpg" option without needing any other dependencies! |
| [15:07:05] | <mstenta[m]> | ahh intersting! |
| [15:07:14] | <paul121[m]> | (I would like that more than PDF ;-) |
| [15:07:27] | <mstenta[m]> | yea!! |
| [15:08:00] | <mstenta[m]> | worth asking Aislinn if JPEG is sufficient |
| [15:08:25] | <mstenta[m]> | (or just implement it and say this was the first step regardless, maybe enough?) |
| [15:08:46] | <mstenta[m]> | if there are no dependencies then that can be in farmOS-map.js IMO |
| [15:08:58] | <paul121[m]> | It might depend on the operating system/image viewer, but I feel like there are easy ways to print more standard image files |
| [15:09:16] | <paul121[m]> | Opening images and dropping into a word document is... not ideal :-) |
| [15:09:22] | <mstenta[m]> | true |
| [15:09:36] | <mstenta[m]> | but "print to pdf" is an option in most places now i think? |
| [15:09:54] | <mstenta[m]> | and printing the JPEG to PDF is a bit better than printing the whole page, which is what she demonstrated i think |
| [15:09:56] | <paul121[m]> | true! |
| [15:11:11] | <paul121[m]> | mstenta[m]: this is ideal because we don't need to deal with paper/page size things, right? existing applications handle that better? |
| [15:15:09] | <mstenta[m]> | Yes! |
| [15:15:14] | <mstenta[m]> | Exactly |
| [15:19:32] | <symbioquine[m]> | PDF is almost always easier to print since it encapsulates some of the decisions a user would (probably) have to make to print the raw image. |
| [15:20:53] | <symbioquine[m]> | But it does require the software generating the PDF to be more opinionated and/or provide sane defaults/options. |
| [15:21:15] | <paul121[m]> | So question is, is it worth embedding that logic in a simple "print to PDF" button? Can we make some good assumptions? |
| [15:21:50] | <symbioquine[m]> | Jpeg map export seems like a reasonable low-hanging-fruit feature regardless. |
| [15:23:24] | <symbioquine[m]> | Bigger picture a "export map book" feature migh make sense since in many scenarios you may need several layers, zoom levels, etc. To be captured. |
| [15:23:44] | <symbioquine[m]> | *might |
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| [16:27:44] | <paul121[m]> | ACTION sent a js code block: https://matrix.org/_matrix/media/v3/download/matrix.org/LqabaGcSVbTHHrLZ... |
| [16:28:03] | <paul121[m]> | ACTION uploaded an image: (499KiB) < https://matrix.org/_matrix/media/v3/download/matrix.org/KQTftscOwGNGRxzS... > |
| [16:32:39] | <paul121[m]> | I found an interesting hybrid option... I was thinking, "can we tell the browser to 'print' a data url?" Well, you can't. The browser will only print html. BUT this [printjs](https://printjs.crabbly.com/) library provides some helpers where it makes a print dialog for an iframe with the content you provide it (including data urls!). From this dialog you could print with whatever the system supports |
| [16:38:53] | <paul121[m]> | Maybe the "user flow" is something like: |
| [16:38:53] | <paul121[m]> | 1. A new button on the map to "Capture/screenshot the map" (behind the scenes this combines multiple canvas elements to a single combined element) |
| [16:38:53] | <paul121[m]> | 2. Display a couple buttons to 1) Download image file (maybe choose from png/jpeg/webp - can generate link like `<a href="{data url}" download/>`) OR 2) Print (using printjs) |
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