home | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Java example source code file (renderWeights.js)

This example Java source code file (renderWeights.js) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

adding, array, magnitudes, mean, parameter, switching, update/gradient, yyyy

The renderWeights.js Java example source code

    var modelSelector = new Array();
    var magnitudesSelector = new Array();

    // current visible chart, all other charts will be hidden
    var visibleModel = "";
    var visibleGradient = "";
    var visibleMagnitude = "";

    var contains = function(needle) {
        // Per spec, the way to identify NaN is that it is not equal to itself
        var findNaN = needle !== needle;
        var indexOf;

        if(!findNaN && typeof Array.prototype.indexOf === 'function') {
            indexOf = Array.prototype.indexOf;
        } else {
            indexOf = function(needle) {
                var i = -1, index = -1;

                for(i = 0; i < this.length; i++) {
                    var item = this[i];

                    if((findNaN && item !== item) || item === needle) {
                        index = i;
                        break;
                    }
                }

                return index;
            };
        }

        return indexOf.call(this, needle) > -1;
    };


    function appendHistogram(values,selector) {
        // A formatter for counts.
        var formatCount = d3.format(",.0f");

        var margin = {top: 10, right: 30, bottom: 30, left: 30},
                width = 650 - margin.left - margin.right,
                height = 350 - margin.top - margin.bottom;
        var data = values;
        var min = d3.min(data);
        var max = d3.max(data);
        if(isNaN(min)){
            min = 0.0;
            max = 1.0;
        }

        var x = d3.scale.linear()
                .domain([min, max])
                .range([0, width]);

        // Generate a histogram using twenty uniformly-spaced bins.
        var data = d3.layout.histogram()
                .bins(x.ticks(20))
                (values);

        var y = d3.scale.linear()
                .domain([0, d3.max(data, function(d) { return d.y; })])
                .range([height, 0]);

        var xAxis = d3.svg.axis()
                .scale(x)
                .orient("bottom");

        var svg = d3.select(selector).append("svg")
                .attr("width", width + margin.left + margin.right)
                .attr("height", height + margin.top + margin.bottom)
                .append("g")
                .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

        var bar = svg.selectAll(".bar")
                .data(data)
                .enter().append("g")
                .attr("class", "bar")
                .attr("transform", function(d) { return "translate(" + x(d.x) + "," + y(d.y) + ")"; });

        bar.append("rect")
                .attr("x", 1)
                .attr("width", x(min+data[0].dx) -1 )
                .attr("height", function(d) { return height - y(d.y); });

        bar.append("text")
                .attr("dy", ".75em")
                .attr("y", 6)
                .attr("x", x(min+data[0].dx) / 2)
                .attr("text-anchor", "middle")
                .text(function(d) { return formatCount(d.y); });

        svg.append("g")
                .attr("class", "x axis")
                .attr("transform", "translate(0," + height + ")")
                .call(xAxis);
    }

 function appendLineChart(values,selector){
        // Set the dimensions of the canvas / graph
        var margin = {top: 30, right: 20, bottom: 30, left: 50},
                width = 650 - margin.left - margin.right,
                height = 350 - margin.top - margin.bottom;

        // Set the ranges
        var x = d3.scale.linear().range([0, width]);
        var y = d3.scale.linear().range([height, 0]);

        // Define the axes
        var xAxis = d3.svg.axis().scale(x)
                .innerTickSize(-height)     //used as grid line
                .orient("bottom").ticks(5);

        var yAxis = d3.svg.axis().scale(y)
                .innerTickSize(-width)      //used as grid line
                .orient("left").ticks(5);

        // Define the line
        var valueline = d3.svg.line()
                .x(function(d,i) { return x(i); })
                .y(function(d) { return y(d); });

        // Adds the svg canvas
        var svg = d3.select(selector)
                .append("svg")
                .attr("width", width + margin.left + margin.right)
                .attr("height", height + margin.top + margin.bottom)
                .append("g")
                .attr("transform",
                "translate(" + margin.left + "," + margin.top + ")");

        // Scale the range of the data
        var max = d3.max(values);
        x.domain([0,values.length]);
        y.domain([0, max]);

        // Add the valueline path.
        svg.append("path")
                .attr("class", "line")
                .attr("d", valueline(values));

        // Add the X Axis
        svg.append("g")
                .attr("class", "x axis")
                .attr("transform", "translate(0," + height + ")")
                .call(xAxis);

        // Add the Y Axis
        svg.append("g")
                .attr("class", "y axis")
                .call(yAxis);
    }

    function appendMultiLineChart(map,selector){
        var keys = Object.keys(map)
        if(keys.length == 0) return;    //nothing to plot

        // Set the dimensions of the canvas / graph
        var margin = {top: 30, right: 20, bottom: 60, left: 50},
                width = 650 - margin.left - margin.right,
                height = 350 - margin.top - margin.bottom;

        // Set the ranges
        var x = d3.scale.linear().range([0, width]);
        var y = d3.scale.linear().range([height, 0]);

        // Define the axes
        var xAxis = d3.svg.axis().scale(x)
                .innerTickSize(-height)     //used as grid line
                .orient("bottom").ticks(5);

        var yAxis = d3.svg.axis().scale(y)
                .innerTickSize(-width)      //used as grid line
                .orient("left").ticks(5);

        // Define the line
        var valueline = d3.svg.line()
                .x(function(d,i) { return x(i); })
                .y(function(d) { return y(d); });

        // Adds the svg canvas
        var svg = d3.select(selector)
                .append("svg")
                .attr("width", width + margin.left + margin.right)
                .attr("height", height + margin.top + margin.bottom)
                .append("g")
                .attr("transform",
                "translate(" + margin.left + "," + margin.top + ")");

        // Scale the range of the data
        var max = -Number.MAX_VALUE;
        var size = 1;
        for( var key in map ){
            var values = map[key];
            var thisMax = d3.max(values);
            if(thisMax > max) max = thisMax;
            size = values.length;
        }
        x.domain([0,size]);
        y.domain([0, max]);

        // Add the valueline path.
        var color = d3.scale.category10();
        var i=0;
        for( var key in map ){
            var values = map[key];
            svg.append("path")
                .attr("class", "line")
                .style("stroke", color(i))
                .attr("d", valueline(values));
            i++;
        }

        // Add the X Axis
        svg.append("g")
                .attr("class", "x axis")
                .attr("transform", "translate(0," + height + ")")
                .call(xAxis);

        // Add the Y Axis
        svg.append("g")
                .attr("class", "y axis")
                .call(yAxis);

        //Add legend
        var legendSpace = width/i;
        i = 0;
        for( var key in map ){
            var values = map[key];
            var last = values[values.length-1];
            var toDisplay = key + " (" + last.toPrecision(5) + ") ";
            svg.append("text")
                .attr("x", (legendSpace/2)+i*legendSpace) // spacing
                .attr("y", height + (margin.bottom/2)+ 5)
                .attr("class", "legend")    // style the legend
                .style("fill", color(i))
                .text(toDisplay);

            i++;
        }
    }

var timed = function() {
                    $.ajax({
                        url:"${path}" + "/updated",
                        async: false,
                        success: function( data ) {
                                    d3.json("${path}"+'/data',function(error,json) {

                                        //Get last update time; do nothing if not a new update
                                        var updateTime = json['lastUpdateTime'];
                                        var lastUpdateTime = $('#lastupdate .updatetime').text();
                                        if(updateTime == lastUpdateTime) return;


                                        var model = json['parameters'];
                                        var gradient = json['gradients'];
                                        var score = json['score'];
                                        var scores = json['scores'];
                                        var updateMagnitudes = json['updateMagnitudes'];
                                        var paramMagnitudes = json['paramMagnitudes'];

                                        if(!model || !gradient || !score || !scores || !updateMagnitudes || !paramMagnitudes )
                                            return;
                                        $('.score').html('' + score);


                                        $('#scores .chart').html('');
                                        var scdiv = '<div class="scorechart">
'; $('#scores .chart').append(scdiv); appendLineChart(scores,'#scores .chart'); //clear out body of where the chart content will go $('#model .charts').html(''); $('#gradient .charts').html(''); var keys = Object.keys(model); for(var i = 0; i < keys.length; i++) { var key = keys[i]; //model id class charts var selectorModel = '#model .charts'; var selectorGradient = '#gradient .charts'; //append div to each node where the chart content will //go and pass that in to the chart renderer var divModel = '<div id="model'+ key+'" class="' + key + '" style="' + ((visibleModel == key) ? "visibility: visible; display: block;" : "visibility: hidden; display: none;") +';">'; var divGradient = '<div id="gradient'+ key+'" class="' + key + '" style="' + ((visibleGradient == key) ? "visibility: visible; display: block;" : "visibility: hidden; display: none;") +';">'; $(selectorModel).append(divModel); $(selectorGradient).append(divGradient); appendHistogram(model[key]['dataBuffer'],selectorModel + ' .' + key); appendHistogram(gradient[key]['dataBuffer'],selectorGradient + ' .' + key); /* update selector box if needed */ if (!contains.call(modelSelector, key)) { console.log("Adding model selector: " + key); modelSelector.push(key); $("#modelSelector").append("<option value='"+ key+"'>" + key + ""); $("#gradientSelector").append("<option value='"+ key+"'>" + key + ""); } } //Plot mean magnitudes: weights and params $('#magnitudes .charts').html(''); for(var i=0; i<updateMagnitudes.length; i++ ){ //Maps: var mapParams = paramMagnitudes[i]; var mapUpdates = updateMagnitudes[i]; var selectorModel = '#magnitudes .charts' var div = '<div id="layer' + i + 'param" class="layer' + i + 'param" style="' + ((visibleMagnitude == "layer" + i + "param" ) ? "visibility: visible; display: block;" : "visibility: hidden; display: none;") +';">'; $(selectorModel).append(div); appendMultiLineChart(mapParams,selectorModel + ' .layer' + i + 'param'); div = '<div id="layer' + i + 'grad" class="layer' + i + 'grad" style="' + ((visibleMagnitude == "layer" + i + "grad" ) ? "visibility: visible; display: block;" : "visibility: hidden; display: none;") +';">'; $(selectorModel).append(div); appendMultiLineChart(mapUpdates,selectorModel + ' .layer' + i + 'grad'); if (!contains.call(magnitudesSelector, key)) { console.log("Adding magnitudes selector: " + key); magnitudesSelector.push(key); $("#magnitudeSelector").append("<option value='layer" + i + "param'>Layer " + i + " Parameter Mean Magnitudes"); $("#magnitudeSelector").append("<option value='layer" + i + "grad'>Layer " + i + " Update/Gradient Mean Magnitudes"); } } // this hack allows first selection of visible model histo if (visibleModel == "") { $("#modelSelector").val($("#modelSelector option:first").val()); selectModel(); } if (visibleGradient == "") { $("#gradientSelector").val($("#gradientSelector option:first").val()); selectGradient(); } if (visibleMagnitude == "") { $("#magnitudeSelector").val($("#magnitudeSelector option:first").val()); selectMagnitude(); } var time = new Date(updateTime); $('#updatetime').html(time.customFormat("#DD#/#MM#/#YYYY# #hhh#:#mm#:#ss#")); // all subsequent refreshes are delayed by 10 seconds setTimeout(timed, 10000) }); } }) }; // first update is fired almost immediately, 2s timeout setTimeout(timed,2000); function selectModel() { console.log("Switching off model view: " + visibleModel); if (visibleModel != "") { $("#model" + visibleModel).css("visibility","hidden"); $("#model" + visibleModel).css("display","none"); } visibleModel = $("#modelSelector").val(); $("#model" + visibleModel).css("visibility","visible"); $("#model" + visibleModel).css("display","block"); console.log("Switching on model view:" + visibleModel); } function selectGradient() { console.log("Switching off gradient view: " + visibleGradient); if (visibleGradient != "") { $("#gradient" + visibleGradient).css("visibility","hidden"); $("#gradient" + visibleGradient).css("display","none"); } visibleGradient = $("#gradientSelector").val(); $("#gradient" + visibleGradient).css("visibility","visible"); $("#gradient" + visibleGradient).css("display","block"); console.log("Switching on gradient view:" + visibleGradient); } function selectMagnitude() { console.log("Switching off magnitude view: " + visibleMagnitude); if (visibleMagnitude != "") { $("#" + visibleMagnitude).css("visibility","hidden"); $("#" + visibleMagnitude).css("display","none"); } visibleMagnitude = $("#magnitudeSelector").val(); $("#" + visibleMagnitude).css("visibility","visible"); $("#" + visibleMagnitude).css("display","block"); console.log("Switching on magnitude view:" + visibleMagnitude); }

Other Java examples (source code examples)

Here is a short list of links related to this Java renderWeights.js source code file:



my book on functional programming

 

new blog posts

 

Copyright 1998-2019 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.