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September 5, 2019 19:09
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Paint by Numbers
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| license: gpl-3.0 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| path { | |
| stroke-linejoin: round; | |
| stroke-linecap: round; | |
| } | |
| .background { | |
| fill: none; | |
| stroke: #ddd; | |
| } | |
| .foreground { | |
| fill: none; | |
| pointer-events: all; | |
| } | |
| </style> | |
| <body> | |
| <script src="//d3js.org/d3.v3.min.js"></script> | |
| <script src="//d3js.org/topojson.v1.min.js"></script> | |
| <script> | |
| var width = 960, | |
| height = 600; | |
| var projection = d3.geo.albersUsa() | |
| .scale(1280) | |
| .translate([width / 2, height / 2]); | |
| var path = d3.geo.path() | |
| .projection(projection); | |
| var color = d3.scale.category10().domain(d3.range(9)), | |
| selectedColor = 0, | |
| dragColor; | |
| var components = color.domain().map(function() { return []; }); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| var legend = svg.append("g") | |
| .attr("class", "legend") | |
| .attr("transform", "translate(" + ((width - color.domain().length * 24) / 2) + ",10)") | |
| .style("cursor", "pointer") | |
| .selectAll("rect") | |
| .data(color.domain()) | |
| .enter().append("rect") | |
| .attr("x", function(d) { return d * 24; }) | |
| .attr("width", 24 - 3) | |
| .attr("height", 24 - 3) | |
| .style("stroke", function(d) { return d ? null : "#000"; }) | |
| .style("fill", color) | |
| .on("click", clicklegend); | |
| d3.select(self) | |
| .on("keydown", keydown) | |
| .node().focus(); | |
| d3.json("/mbostock/raw/4090846/us.json", function(error, us) { | |
| if (error) throw error; | |
| var bisectId = d3.bisector(function(d) { return d.id; }).left; | |
| var features = topojson.feature(us, us.objects.states).features; | |
| svg.append("path") | |
| .datum(topojson.mesh(us, us.objects.states)) | |
| .attr("class", "background") | |
| .attr("d", path); | |
| var merge = svg.append("g") | |
| .attr("class", "merge") | |
| .selectAll("path") | |
| .data(components) | |
| .enter().append("path") | |
| .style("fill", function(d, i) { return color(i); }) | |
| .style("stroke", function(d, i) { return d3.lab(color(i)).darker(); }); | |
| svg.append("g") | |
| .attr("class", "foreground") | |
| .style("cursor", "pointer") | |
| .style("stroke-opacity", .5) | |
| .selectAll("path") | |
| .data(features) | |
| .enter().append("path") | |
| .attr("d", function(d) { d.color = null; return path(d); }) | |
| .on("mouseover", function() { this.style.stroke = "black"; }) | |
| .on("mouseout", function() { this.style.stroke = "none"; }) | |
| .call(d3.behavior.drag() | |
| .on("dragstart", dragstart) | |
| .on("drag", drag)); | |
| top.location.hash.split("").slice(1, features.length).forEach(function(c, i) { | |
| if ((c = +c) >= 0 && c < 10) assign(features[i], c ? c - 1 : null); | |
| }); | |
| redraw(); | |
| function dragstart() { | |
| var feature = d3.event.sourceEvent.target.__data__; | |
| if (assign(feature, dragColor = feature.color === selectedColor ? null : selectedColor)) redraw(); | |
| } | |
| function drag() { | |
| var feature = d3.event.sourceEvent.target.__data__; | |
| if (feature && assign(feature, dragColor)) redraw(); | |
| } | |
| function assign(feature, color) { | |
| if (feature.color === color) return false; | |
| if (feature.color !== null) { | |
| var component = components[feature.color]; | |
| component.splice(bisectId(component, feature.id), 1); | |
| feature.color = null; | |
| } | |
| if (color !== null) { | |
| var component = components[color]; | |
| component.splice(bisectId(component, feature.id), 0, feature); | |
| feature.color = color; | |
| } | |
| return true; | |
| } | |
| function redraw() { | |
| merge.data(components).attr("d", function(d) { return path({type: "FeatureCollection", features: d}) || "M0,0"; }); | |
| top.history.replaceState(null, null, "#" + features.map(function(d) { return d.color === null ? "0" : d.color + 1; }).join("")); | |
| } | |
| }); | |
| function clicklegend(d) { | |
| legend[0][selectedColor].style.stroke = null; | |
| legend[0][selectedColor = d].style.stroke = "#000"; | |
| } | |
| function keydown() { | |
| if (d3.event.keyCode >= 48 && d3.event.keyCode < 58) { | |
| var i = d3.event.keyCode - 49; | |
| if (i < 0) i = 10; | |
| clicklegend(i); | |
| } | |
| } | |
| d3.select(self.frameElement).style("height", height + "px"); | |
| </script> |
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Where I found italian dataset?