import marker color from kml or geojson

[simonLouvet]

Hello,

I try to specify color of marker during an import but that don't seem effectiv.

<Document>
        <Placemark>
            <Point>
                <coordinates>1.8457031250000002,47.45780853075031</coordinates>
            </Point>
            <styleUrl>#Style00</styleUrl>
        </Placemark>
        <Style id="Style00">
            <LineStyle>
                <color>ff6e6e6e</color>
            </LineStyle>
            <IconStyle>
                <color>ff6e6e6e</color>
            </IconStyle>
        </Style>
    </Document>

I ever try other color format (kml, Umap Color..).

[M-Rick]

Hi
You already can do it.
In your GeoJSON, just add a new column _umap_options and in your datas values add this { "color": "green" }
You can edit your GeoJSON file in QGIS and apply a dynamic calculation from the color column over the new _umap_options just like this concat( '{ "color": "', "my_colors",'" }' ). And then when you will import your datas in uMap, you won't have to set all the colors again, all will be ready. It works for any of the settings, such as transparency, dashes, weight, labels, icons etc.

You can even prepare all your datas directly, if you create a name and a description columns and fill them with the texts dedicated to them including the CSS style to format the rendering.
With this, you can create an uMap in just a few clicks and a few minutes.

[eiland-asbl]

I'm trying to get my head around to setting the pin-style in my csv, but whenever i try to import a _umap_options field, it dissappears, or at least, it doesn't style my pin?

[skramm]

Hi, I'm here coming from https://help.openstreetmap.org/questions/82388/
The tip here from @M-Rick is a bit unclear to me. I don't know what software you are showing here (GeoJSON is a file format, AFAIK).
I tried something like this:

{ "type": "FeatureCollection",
    "features":
    	[
            { "type": "Feature",
                 "geometry":
	        	{
	        		"type": "Point", 
    			    "coordinates": [2.2908106734441,48.8421565600018]
    			},
		        "_umap_options": {"color": "green" }
	        },
        	{ "type": "Feature",
            "geometry":
	        	{
	        		"type": "Point", 
    			    "coordinates": [2.40580700033425,48.8756657433978],
		        	"_umap_options": {"color": "red" }
	        	}
        	}
    	]
}

I tried placing the color inside the "point" or inside the "Feature", none of these seems to work.
Any hint?

[skramm]

Oh, sorry, didn't see you were talking about QGIS, my bad. I'll have a try.

[skramm]

ok, finally got that. For others that follow the same path as me, here is a sample of something that works.
I think that the issue can be closed now.

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {
        "name": "Collège Bidule","_umap_options": { "color": "yellow" }
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          2.332706,
          48.86614
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "name": "Ecole maternelle Truc","_umap_options": { "color": "green" }
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          2.290811,
          48.842157
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "name": "Ecole primaire Machin", "_umap_options": {"color": "red"}
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          2.405807,
          48.875666
        ]
      }
    }
  ]
}

[simonLouvet]

thanks a lot @skramm

[dawansv]

I'm trying to get my head around to setting the pin-style in my csv, but whenever i try to import a _umap_options field, it dissappears, or at least, it doesn't style my pin?

_umap_options is removed from the table view by design. The problem is not that, but the fact that in a CSV _umap_options is processed as a quoted string, not as raw JSON, so instead of { "color": "red" } it is processed as "{\"color": \"red\" }" and it ends up looking like a series of single characters options after processing.

"_umap_options": {
          "0": "{",
          "1": "\"",
          "2": "c",
          "3": "o",
          "4": "l",
          "5": "o",
          "6": "r",
          "7": "\"",
          "8": " ",
          "9": ":",
          "10": " ",
          "11": "\"",
          "12": "r",
          "13": "e",
          "14": "d",
          "15": "\"",
          "16": "}"
        }

I don't really think there is a way around it without converting your csv to GeoJSON first. Which is too bad because I was trying to use this from a remove google spreadsheet csv but indeed although I can pass the regular fields that way, no luck with passing per-record _umap_options.

[albjeremias]

hi!
i made this script to convert kml to geojson, importable by umaps! :)

https://gist.github.com/albjeremias/0d591bbd703ac2b9bd835b40118cd14f

but I'm still trying to understand how the geojson should be formatted so that the polygon has a filling color. anyone knowns?

[yohanboniface]

Try adding something like this:

"type": "Feature",
…
"properties": {
    …
    "_umap_options": {
        "color": "yellow"
    }
}

But please note that this property is not official, and it is going to change in the incoming weeks.