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Re: Little Azimuth Map project
¿ªÔÆÌåÓýHelloIs there some place where you share/save projects?? Or only randomly?? Best Regards, Stein-Roar?Zamora Brobakken post@... LB3RE K3RAG LC0X Skype: lb3re.rag 3. mars 2025 kl.?23:20 skrev Ken Kayser via groups.io <kxkayser@...>:
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Re: Little Azimuth Map project
Hi again Alan.? I wanted to thank you again for your guidance on this project.? I have successfully generated several maps using? NS6T's site and incorporating them into my multiple map rotor flow.? Interesting to see that's it's not actually the svg file that's incorporated into the svg node but rather the base64 representation.? I'm assuming that it's the svg node that allows for the clickable responses and several other properties I'm enjoying although it's still a little obscure for me.? Thanks again. |
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Re: Little Azimuth Map project
I'm all set now. I downloaded Great Circle Mapper and built a new World map that I absolutely love. Now I just wish I could figure out how to make a USA grid map that has the rotor headings, but is centered on the US and not my location. That's the downfall of living way up in one of the corners. An azimuthal map doesn't really work well for this. That's a project for another day. Thanks for your help Alan.?
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Re: Little Azimuth Map project
Patrick and others who what "dynamic" SVG maps.
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In the demo, "build your own rotor map" flow, there is a section for dynamic maps. ?For your maps, you need to modify the function(s) below for each of your desired maps.
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First, after you have your map image file, it needs to be converted to base 64. ?Here is a link to a web site that will do the conversion:
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Then, you need to build the SVG string to paste into the function node. ?The string will all be within "" and will start with?
msg.payload = "data:image/png;base64,
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then paste in the base 64 image text, no space following the comma.
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Be sure there is a closing ", at the end of the large string.
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Alan. WA9WUD
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Re: Little Azimuth Map project
Now we're cooking! Thanks for that Alan. Took a minute to figure out how to enable the 3rd beam, but I got it all sorted.?
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Now if someone could make me the world and NA map from my QTH (W7IB in CN88uw) with a black background like my existing SVG map has I'll be set!!!?
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Re: Little Azimuth Map project
¿ªÔÆÌåÓýI am thinking what Patrick wants can be done withModifying the SVG code to add a third vector, with different color then in the code set them to fixed values (azimuth). You just need the node in the correct dash group. No need to have connections in or out.? Thoughts? I probably will not have time to do this until Monday.? 73 Dave wo2x Sent from my waxed string and tin cans.? On Feb 28, 2025, at 12:58?PM, Alan Blind, WA9WUD via groups.io <a.alan.blind@...> wrote:
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Little Azimuth Map project
Need some help with a project. This one is a bit above my paygrade.?
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I'd like to make an azimuth map centered on me (W7IB) that displays 3 different beam headings. I do NOT want the map to be clickable or send commands in any way. I do not need to have it have the normal target line of the current available. Just a normal display Azimuth map that shows a red/blue/green beam headings with 3 separate inputs. Thank ahead for anyone willing to write the function node for this.?
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73 de W7IB |
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Re: How to Create an Azimuth Map?
Ken
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I am not sure exactly what you ask. ?But, let me explain a feature of the SVG node that allows you to send a SVG base 64 image to the node (maps).
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If you send the following JSON object to the SVG node it will show the base 64 SVG image:
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var m =
[
{
"command": "update_attribute",
"elementId": "image",
"attributeName": "xlink:href",
"attributeValue": msg.payload
}
]
msg.payload = m
return msg;
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In this JSON, "attributeValue, is the base 64 image, or in this case, msg.payoad.
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Now you must build the upstream msg.payload, which is the base 64 version of the SVG map code.
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To build this payload, insert the sag map file after the below string, followed by a ", to complete the string.
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msg.payload = "data:image/png;base64,SVGFile"
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To help in your learning, I have attached a "build your own" map using the SVG node.
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There is a section for sending SVG files in the flow.
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There are many other individual attributes you can change to customized your rotor graphic, all
taking advantage of the advance features of the SVG Node.
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Alan. WA9WUD
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LB3RE/LC0X "Rag" Stein-Roar
Ken Kayser
Patrick Lenn
Dave wo2x