| <graph>
{
//
// ATTENTION: This code is maintained at https://www.mediawiki.org/wiki/Template:Graph:Street_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:Street_map_with_marks
//
// Template translation is in https://commons.wikimedia.org/wiki/Data:Original/Template:Graphs.tab
//
"version": 2, "width":240, "height": 200, "padding": 0,
"signals":[
// These signals allow us to quickly move the map within the image, e.g. to leave space for the legend
{"name":"legendWidth", "init": {"expr": "0"} },
{"name":"legendHeight", "init": {"expr": "height"} },
{"name":"imgWidth", "init": {"expr": "width-legendWidth"} },
{"name":"imgHeight", "init": {"expr": "height"} },
{"name":"imgXC", "init": {"expr": "imgWidth/2"} },
{"name":"imgYC", "init": {"expr": "imgHeight/2"} },
{"name":"imgTileSize", "init": {"expr": "256"} },
{"name":"imgLat", "init": {"expr": "8.6889"} },
{"name":"imgLon", "init": {"expr": "77.0512"} },
{"name":"imgZoom", "init": {"expr": "13"} },
{"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)"} },
{"name":"showMiniMap", "init": {"expr": "0"} }
],
"data": [
{
"name": "data",
// Otherwise use the first unnamed argument for source values
"values": [ { "lat": 8.6889,
"lon": 77.0512,
"img": "wikirawupload:https://upload.wikimedia.org/wikipedia/commons/thumb/1/10/Mapscaleline.svg/120px-Mapscaleline.svg.png",
"width": 50,
"height": 8,
"offsetX": 83,
"offsetY": 90,
"textAlign": "right",
"textDx": 22,
"textDy": -2,
"textColor": "grey",
"textFont": "Tahoma",
"textFontSize": 9,
"text": "2km" }
, {
"lat": 0, "lon": 0,
"img": "wikirawupload:https://upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Red_pog.svg/10px-Red_pog.svg.png", "height": 10, "width": 10,
"text": "",
"textAlign": "right", "textBaseline": "middle", "textDx": -7, "textDy": 1,
"textFontSize": 12, "textColor": "#AA1205"
}
,
{
"lat": 8.6889, "lon": 77.0512,
"img": "wikirawupload:https://upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Red_pog.svg/10px-Red_pog.svg.png", "height": 10, "width": 10,
"text": "JNV Chettachal",
"textAlign": "center", "textBaseline": "bottom", "textDx": 0, "textDy": -7,
"textFontSize": 12, "textColor": "#000000"
}
],
"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 || '#c33'" },
{ "type": "formula", "field":"textColor", "expr": "datum.textColor || datum.color" },
{ "type": "formula", "field":"strokeColor", "expr": "datum.strokeColor || '#ffe7e6'" }
]
},
{
// Hack: single value data source for drawing/hiding images and other non-series elements
"name": "dummyData",
"values": [{}]
}
],
// Legend only works if showLegend and colorScaleField are set
"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" },
{ "type": "formula", "field":"img",
"expr": "if(!test(/^[a-z]+:\\/\\//, datum.img), 'wikifile:///'+datum.img, datum.img)" },
// Ensure that either width or height parameter is passed to wikifile:// request
{ "type": "formula", "field":"img",
"expr": "if((datum.iconWidth || datum.iconHeight) && !test(/[?&](width|height)=\\d/, datum.img),if(datum.iconWidth,datum.img+'?width='+datum.iconWidth,datum.img+'?height='+datum.iconHeight), datum.img)" }
]},
"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"},
// If colorScaleField is set, use color scaling, otherwise use the preset color value
"fill": { "field": "color" },
"size": {"field": "size"},
"shape": {"field": "shape"},
"stroke": {"field": "strokeColor"}
}
}
},
{
// 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": "showMiniMap" }
]
},
"properties": {
"enter": {
"xc": {"signal": "picXC"}, "yc": {"signal": "picYC"},
"width": {"signal": "picWidth", "offset":2}, "height": {"signal": "picHeight"},
"stroke": {"value":"#fff"},"strokeWidth": {"value":6}
}
}
},
{
// Draw a low-zoom locator map by using a premade world map image
"type": "image",
"from": {
"data": "dummyData",
"transform": [
{ "type": "filter", "test": "showMiniMap" },
{ "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": "showMiniMap" },
{ "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": "#c33"},
"stroke": {"value": "#ffe7e6"},
"size": {"value": 40}
}
}
}
]
}
</graph>
|
