User:Yurik/mapsnapshot
| Markup | Result | ||
|---|---|---|---|
| Simple map with a single marker {{ :User:Yurik/mapsnapshot | lat=37.8 | lon=-122.4 | zoom=5 | |
| ||
| Two markers with labels - one as diamond shape, one uses an image from Commons Text label can be customized with all of Vega text mark parameters by prepending "text" to their name {{ :User:Yurik/mapsnapshot | lat=37.8 | lon=-122.4 | zoom=9 | |
| ||
| {{ :User:Yurik/mapsnapshot | lat=-33.8688 | lon=151.2093 | zoom=10 | {"lat":-33.8688, "lon":151.2093, "img":"wikirawupload:{{filepath:Opera_House_and_ferry._Sydney.jpg|48}}", "width":48, "height": 36, "text": "Sydney", "textFontWeight": "bold", "textFontSize": 20, "textColor": "#00f", "textAlign": "right", "textDx": -30}, }} |
|
Shows an image of a map, and draws user-specified images/icons on top of it using latitude/longitude coordinates.
| Parameter | Description | Type | Status | |
|---|---|---|---|---|
| data | 1 | Comma separated list of JSON objects that describing what data to draw on the map | String | suggested |
| background | background | Background map image filename | File | optional |
| width | width | Total width of the graph | Number | optional |
| height | height | Total height of the graph (Mercator projection is 2:1)
| Number | optional |
| padding | padding | no description | Number | optional |
| projection | projection | Name of the D3 geo projection to use | String | optional |
<graph>
{
//
// ATTENTION: This code is maintained at https://www.mediawiki.org/wiki/Template:Graph:Map_with_marks
// Please do not modify it anywhere else, as it may get copied and override your changes.
// Suggestions can be made at https://www.mediawiki.org/wiki/Template_talk:Graph:Map_with_marks
//
"version": 2, "width":400, "height": 300, "padding": 0,
"signals":[
// These signals allow us to quickly move the map within the image, e.g. to leave space for the legend
{"name":"imgXC", "init": {"expr": "width/2"} },
{"name":"imgYC", "init": {"expr": "height/2"} },
{"name":"imgWidth", "init": {"expr": "width"} },
{"name":"imgHeight", "init": {"expr": "height"} },
{"name":"imgTileSize", "init": {"expr": "256"} },
{"name":"imgLat", "init": {"expr": "37.774"} },
{"name":"imgLon", "init": {"expr": "-122.45"} },
{"name":"imgZoom", "init": {"expr": "15"} },
{"name":"picWidth", "init": {"expr": "180"} },
{"name":"picHeight", "init": {"expr": "picWidth/2"} },
{"name":"picXC", "init": {"expr": "imgWidth-(picWidth/2)"} },
{"name":"picYC", "init": {"expr": "imgHeight-(picHeight/2)"} },
],
"data": [
{
"name": "data",
"values": [
{"lat":65.6, "lon":-168.1, "color":"#f00", "size": 10},
{"lat":90, "lon":-180, "shape":"cross", "color":"#f00", "size": 500},
{"lat":-90, "lon":180, "shape":"cross", "color":"#f00", "size": 500},
{"lat":0, "lon":-180, "shape":"cross", "color":"#f00", "size": 500},
{"lat":0, "lon":180, "shape":"cross", "color":"#f00", "size": 500},
{"lat":20, "lon":-120, "color":"#0f0"},
{"lat":40, "lon":-120, "shape":"diamond", "color":"#0f0", "size": 80, "text": "Some cool text", "textColor": "#0ff", "textFontSize": 20, "textBaseline": "middle"},
// BUG! raw SVG image will NOT render properly on the server. Make sure to specify image pixel size, e.g. "|32"
{"lat":-10, "lon":20, "img":"wikirawupload://upload.wikimedia.org/wikipedia/commons/thumb/b/b3/Volcano_red_32x32.svg/32px-Volcano_red_32x32.svg.png", "offsetY":-10},
{"lat":0, "lon":0, "img":"wikirawupload://upload.wikimedia.org/wikipedia/commons/thumb/b/b3/Volcano_red_32x32.svg/32px-Volcano_red_32x32.svg.png", "width":25, "height": 25, "offsetY":-10, "text": "Big volcano", "textFontWeight": "bold", "textFontSize": 20, "textColor": "#fff"},
{"lat":37.774755, "lon":-122.454688, "color":"#f00", "size": 10},
],
"transform": [
{
"type": "geo",
"projection": "mercator",
"scale": {"expr": "imgTileSize/PI/2*pow(2,imgZoom)"},
"translate": [{"expr": "imgXC"}, {"expr": "imgYC"}],
"center": [{"expr": "imgLon"}, {"expr": "imgLat"}],
"lon": "lon", "lat": "lat"
},
{ "type": "formula", "field":"layout_x", "expr": "datum.layout_x + (datum.offsetX || 0)" },
{ "type": "formula", "field":"layout_y", "expr": "datum.layout_y + (datum.offsetY || 0)" },
{ "type": "formula", "field":"color", "expr": "datum.color || '#ff0000'" },
{ "type": "formula", "field":"textColor", "expr": "datum.textColor || datum.color" }
]
},
{
"name": "dummyData",
"values": [{}]
}
],
"marks": [
{
"type": "image",
"from": {
"data": "dummyData",
"transform": [
{ "type": "formula", "field":"url", "expr": "'mapsnapshot:///?width='+imgWidth+'&height='+imgHeight+'&zoom='+imgZoom+'&lat='+imgLat+'&lon='+imgLon" }
]
},
"properties": {
"enter": {
"url": {"field": "url"},
"xc": {"signal": "imgXC"}, "yc": {"signal": "imgYC"},
"width": {"signal": "imgWidth"}, "height": {"signal": "imgHeight"}
}
}
},
{
// Places an image of a given name and size at the [lan,lon] location
"type": "image",
"from": {
"data": "data",
"transform": [
{ "type": "filter", "test": "datum.img" },
{ "type": "formula", "field":"iconWidth", "expr": "datum.width || 0" },
{ "type": "formula", "field":"iconHeight", "expr": "datum.height || 0" }
]},
"properties": {
"enter": {
"url": {"field": "img"},
"xc": {"field": "layout_x"}, "yc": {"field": "layout_y"},
"width": {"field": "iconWidth"}, "height": {"field": "iconHeight"}
}
}
},
{
// Draw marks of a given color, shape, and size at the [lan,lon] location
"type": "symbol",
"from": {
"data": "data",
"transform": [{ "type": "filter", "test": "!datum.img" }]
},
"properties": {
"enter": {
"x": {"field": "layout_x"},
"y": {"field": "layout_y"},
"fill": {"field": "color"},
"size": {"field": "size"},
"shape": {"field": "shape"}
}
}
},
{
// Draw text with the given color and size at the [lan,lon] location
// See https://github.com/vega/vega/wiki/Marks#text for all parameter description (prepend "text" and capitalize them)
"type": "text",
"from": {
"data": "data",
"transform": [
{ "type": "filter", "test": "datum.text" },
// Figure out if this is an LTR or RTL page. For LTR, show label to the right of the icon, left-aligned. For RTL, reverse.
{ "type": "formula", "field":"isLTR", "expr": "'' == '\\u200E'" },
// If these values are not defined ("undefined" is not allowed, so test for truthiness and not 0)
{ "type": "formula", "field":"textDx", "expr": "if(!datum.textDx && datum.textDx != 0, if(datum.isLTR,8,-8), datum.textDx)" },
{ "type": "formula", "field":"textAlign", "expr": "if(!datum.textAlign, if(datum.isLTR,'left','right'), datum.textAlign)" },
{ "type": "formula", "field":"textBaseline", "expr": "datum.textBaseline || 'middle'" }
]},
"properties": {
"enter": {
"text": {"field": "text"},
"x": {"field": "layout_x" },
"y": {"field": "layout_y"},
"dx": {"field": "textDx" },
"dy": {"field": "textDy"},
"fill": {"field": "textColor"},
"align": {"field": "textAlign"},
"baseline": {"field": "textBaseline"},
"radius": {"field": "textRadius"},
"theta": {"field": "textTheta"},
"angle": {"field": "textAngle"},
"font": {"field": "textFont"},
"fontSize": {"field": "textFontSize"},
"fontWeight": {"field": "textFontWeight"},
"fontStyle": {"field": "textFontStyle"}
}
}
},
{
// Draw a low-zoom locator map frame
"type": "rect",
"from": {
"data": "dummyData",
"transform": [
{ "type": "filter", "test": "imgZoom>5 && imgWidth>200 && imgHeight>110" }
]
},
"properties": {
"enter": {
"xc": {"signal": "picXC"}, "yc": {"signal": "picYC"},
"width": {"signal": "picWidth", "offset":2}, "height": {"signal": "picHeight"},
"stroke": {"value":"#fff"},"strokeWidth": {"value":4},
}
}
},
{
// Draw a low-zoom locator map by using a premade world map image
"type": "image",
"from": {
"data": "dummyData",
"transform": [
{ "type": "filter", "test": "imgZoom>5 && imgWidth>200 && imgHeight>110" },
{ "type": "formula", "field":"url", "expr": "1" }
]
},
"properties": {
"enter": {
"url": {"value": "wikirawupload:"},
"xc": {"signal": "picXC"}, "yc": {"signal": "picYC"},
"width": {"signal": "picWidth"}, "height": {"signal": "picHeight"}
}
}
},
{
// Draw a zoom-out mark at the [lan,lon] location
"type": "symbol",
"from": {
"data": "dummyData",
"transform": [
{ "type": "filter", "test": "imgZoom>5 && imgWidth>200 && imgHeight>110" },
{ "type": "formula", "field":"lat", "expr": "imgLat" },
{ "type": "formula", "field":"lon", "expr": "imgLon" },
{
"type": "geo",
"projection": "equirectangular",
"scale": {"expr": "180/2/PI"},
"translate": [{"expr": "picXC"}, {"expr": "picYC"}],
"center": [{"expr": "0"}, {"expr": "0"}],
"lon": "lon", "lat": "lat"
}
]
},
"properties": {
"enter": {
"x": {"field": "layout_x"}, "y": {"field": "layout_y"},
"fill": {"value": "#ff0000"},
"size": {"value": 40}
}
}
}
]
}
</graph>