Pokemon

Create interactive visualizations for the Pokemon data. Complete the script so that when a user clicks on each menu button, there will be a different bar chart shown in the Viz block.

You will be reusing the code you wrote for generating SVG bar charts a couple weeks ago. The main challenge is to figure out how to connect your visualization code with the front-end code (event handlers ... etc).

Menu

Viz

// pokemonData is a global variable
pokemonData = 'not loaded yet'

$.get('/data/pokemon-small.json')
 .success(function(data){
     //console.log('data loaded', data)
     $('.myviz').html('number of records load:' + data.length)
     // TODO: show in the myviz that the data is loaded
     pokemonData = data      
 })


function vizAsHorizontalBars(){

    // TODO: modify this function to visualize the data as horizontal
    // bars to compare attack points

    // define a template string
    var tplString = '<g transform="translate(0 ${d.y})"> \
                    <rect   \
                         width="${d.width}" \
                         height="20"    \
                         style="fill:${d.color};    \
                                stroke-width:3; \
                                stroke:rgb(0,0,0)" />   \
                    </g>'

    // compile the string to get a template function
    var template = _.template(tplString)

    function computeX(d, i) {
        return 0
    }

    function computeWidth(d, i) {
        return d.Attack
    }

    function computeY(d, i) {
        return i * 20
    }

    function computeColor(d, i) {
        return 'red'
    }

    var viz = _.map(pokemonData, function(d, i){
                return {
                    x: computeX(d, i),
                    y: computeY(d, i),
                    width: computeWidth(d, i),
                    color: computeColor(d, i)
                }
             })
    console.log('viz', viz)

    var result = _.map(viz, function(d){
             // invoke the compiled template function on each viz data
             return template({d: d})
         })
    console.log('result', result)

    $('.myviz').html('<svg>' + result + '</svg>')
}

$('button#viz-horizontal').click(vizAsHorizontalBars)


// for each of the TODOs below, you will write a "callback function" similar
// to vizAsHorizontalBars and a $('something').click to add this callback
// function to respond to the click event of a particular button

// TODO: add code to visualize the attack points as a series
// of vertical bars (without labels)

function vizAsVerticalBars(){

    // TODO: modify this function to visualize the data as horizontal
    // bars to compare attack points

    // define a template string
    var tplString = '<g transform="translate(${d.x} 0)"> \
                    <rect   \
                         width="${d.width}" \
                         height="${d.height}"    \
                         style="fill:${d.color};    \
                                stroke-width:3; \
                                stroke:rgb(0,0,0)" />   \
                    </g>'

    // compile the string to get a template function
    var template = _.template(tplString)

    function computeX(d, i) {
        return i*20
    }

    function computeWidth(d, i){
        return 20
    }

    function computeHeight(d, i) {
        return d.Attack
    }

    function computeY(d, i) {
        return 400-d.Attack
    }

    function computeColor(d, i) {
        return 'red'
    }

    var viz = _.map(pokemonData, function(d, i){
                return {
                    x: computeX(d, i),
                    y: computeY(d, i),
                    width: computeWidth(d, i),
                    height: computeHeight(d, i),
                    color: computeColor(d, i)
                }
             })
    console.log('viz', viz)

    var result = _.map(viz, function(d){
             // invoke the compiled template function on each viz data
             return template({d: d})
         })
    console.log('result', result)

    $('.myviz').html('<svg>' + result + '</svg>')
}

$('button#viz-vertical').click(vizAsVerticalBars)

// TODO: add code visualize the attack points vs. defense
// points as side-by-side horizontal bar charts (with labels)

function vizAttackDefense(){

    var tplString = '<g transform="translate(150 ${d.y})"> \
                    <rect   \
                         width="${d.widthA}" \
                         height="20"    \
                         style="fill:red;    \
                                stroke-width:3; \
                                stroke:rgb(0,0,0)" />   \
                    </g>
                    <g transform="translate(150-${d.widthD} ${d.y})"> \
                    <rect   \
                         width="${d.widthD}" \
                         height="20"    \
                         style="fill:blue;    \
                                stroke-width:3; \
                                stroke:rgb(0,0,0)" />   \
                    </g>'

    // compile the string to get a template function
    var template = _.template(tplString)

    function computeX(d, i) {
        return 0
    }

    function computeWidthA(d, i) {
        return d.Attack
    }

    function computeWidthD(d,i){
        return d.Defense
    }

    function computeY(d, i) {
        return i * 20
    }

    function computeColor(d, i) {
        return 'red'
    }

    var viz = _.map(pokemonData, function(d, i){
                return {
                    x: computeX(d, i),
                    y: computeY(d, i),
                    widthA: computeWidthA(d, i),
                    widthD: computeWidthD(d, i)
                    color: computeColor(d, i)
                }
             })
    console.log('viz', viz)

    var result = _.map(viz, function(d){
             // invoke the compiled template function on each viz data
             return template({d: d})
         })
    console.log('result', result)

    $('.myviz').html('<svg>' + result + '</svg>')
}


$('button#viz-attack-defense').click(vizAttackDefense)

// TODO: add code visualize the speed points vs. defense
// points as side-by-side horizontal bar charts (with labels)

// TODO: add code to visualize the attack points in ascending order as a
// series of horizontal bar charts (with labels)

// TODO: add code to visualize the attack points in descending order as a
// series of horizontal bar charts (with labels)

// TODO: add code to visualize the attack points as a series of horizontal bar
// charts (with labels), and using the brightness of red to represent defense
// points