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ScoDoc/static/js/radar_bulletin.js

279 lines
8.9 KiB
JavaScript

//
// Diagramme "radar" montrant les notes d'un étudiant
//
// ScoDoc, (c) E. Viennet 2012
//
// Ce code utilise d3.js
$().ready(function(){
var etudid = $("#etudid")[0].value;
var formsemestre_id = $("#formsemestre_id")[0].value;
get_notes_and_draw(formsemestre_id, etudid);
});
var WIDTH = 460; // taille du canvas SVG
var HEIGHT = WIDTH;
var CX = WIDTH/2; // coordonnees centre du cercle
var CY = HEIGHT/2;
var RR = 0.4*WIDTH; // Rayon du cercle exterieur
/* Emplacements des marques (polygones et axe gradué) */
var R_TICS = [ 8, 10, 20 ]; /* [6, 8, 10, 12, 14, 16, 18, 20]; */
var R_AXIS_TICS = [4, 6, 8, 10, 12, 14, 16, 18, 20];
var NB_TICS = R_TICS.length;
function get_notes_and_draw(formsemestre_id, etudid) {
console.log("get_notes(" + formsemestre_id + ", " + etudid + " )");
/* Recupère le bulletin de note et extrait tableau de notes */
/*
var notes = [
{ 'module' : 'E1',
'note' : 13,
'moy' : 16 },
];
*/
var query = "formsemestre_bulletinetud?formsemestre_id=" + formsemestre_id + "&etudid=" + etudid + "&format=json&version=selectedevals&force_publishing=1"
$.get( query, '', function(bul){
var notes = [];
bul.ue.forEach(
function(ue, i, ues) {
ue['module'].forEach( function(m, i) {
notes.push( { 'code': m['code'],
'titre' : m['titre'],
'note':m['note']['value'],
'moy':m['note']['moy'] } );
}); } );
draw_radar(notes);
});
}
function draw_radar(notes) {
/* Calcul coordonnées des éléments */
var nmod = notes.length;
var angle = 2*Math.PI/nmod;
for (var i=0; i<notes.length; i++) {
var d = notes[i];
var cx = Math.sin(i*angle);
var cy = - Math.cos(i*angle);
d["x_v"] = CX + RR * d.note/20 * cx;
d["y_v"] = CY + RR * d.note/20 * cy;
d["x_moy"] = CX + RR * d.moy/20 * cx;
d["y_moy"] = CY + RR * d.moy/20 * cy;
d["x_20"] = CX + RR * cx;
d["y_20"] = CY + RR * cy;
d["x_label"] = CX + (RR + 25) * cx - 10
d["y_label"] = CY + (RR + 25) * cy + 10;
d["tics"] = [];
// Coords des tics sur chaque axe
for (var j=0; j < NB_TICS; j++) {
var r = R_TICS[j]/20 * RR;
d["tics"][j] = { "x" : CX + r * cx, "y" : CY + r * cy };
}
}
var notes_circ = notes.slice(0);
notes_circ.push(notes[0])
var notes_circ_valid = notes_circ.filter( function(e,i,a) { return e.note != 'NA' && e.note != '-'; } );
var notes_valid = notes.filter( function(e,i,a) { return e.note != 'NA' && e.note != '-'; } )
/* Crée l'élément SVG */
g = d3.select("#radar_bulletin").append("svg")
.attr("class", "radar")
.attr("width", WIDTH+100)
.attr("height", HEIGHT);
/* Centre */
g.append( "circle" ).attr("cy", CY)
.attr("cx", CX)
.attr("r", 2)
.attr("class", "radar_center_mark");
/* Lignes "tics" */
for (var j=0; j < NB_TICS; j++) {
var ligne_tics = d3.svg.line()
.x(function(d) { return d["tics"][j]["x"]; })
.y(function(d) { return d["tics"][j]["y"]; });
g.append( "svg:path" )
.attr("class", "radar_disk_tic")
.attr("id", "radar_disk_tic_" + R_TICS[j])
.attr("d", ligne_tics(notes_circ));
}
/* Lignes radiales pour chaque module */
g.selectAll("radar_rad")
.data(notes)
.enter().append("line")
.attr("x1", CX)
.attr("y1", CY)
.attr("x2", function(d) { return d["x_20"]; })
.attr("y2", function(d) { return d["y_20"]; })
.attr("class", "radarrad");
/* Lignes entre notes */
var ligne = d3.svg.line()
.x(function(d) { return d["x_v"]; })
.y(function(d) { return d["y_v"]; });
g.append( "svg:path" )
.attr("class", "radarnoteslines")
.attr("d", ligne(notes_circ_valid));
var ligne_moy = d3.svg.line()
.x(function(d) { return d["x_moy"]; })
.y(function(d) { return d["y_moy"]; })
g.append( "svg:path" )
.attr("class", "radarmoylines")
.attr("d", ligne_moy(notes_circ_valid));
/* Points (notes) */
g.selectAll("circle1")
.data(notes_valid)
.enter().append("circle")
.attr("cx", function(d) { return d["x_v"]; })
.attr("cy", function(d) { return d["y_v"]; })
.attr("r", function(x, i) { return 3; } )
.style("stroke-width", 1)
.style("stroke", "black")
.style("fill", "blue")
.on("mouseover", function(d) {
var rwidth = 310;
var x = d["x_v"];
if ((x - CX) < 0) {
x = x + 5;
if (x + rwidth + 12 > WIDTH) {
x = WIDTH - rwidth - 12;
}
}
else {
if ((x - CX) > 0) {
x = x - rwidth - 5;
if (x < 12) {
x = 12;
}
}
else {
x = CX - rwidth/2;
}
}
var yrect = d["y_v"];
var ytext = d["y_v"];
if ((yrect - CY) > 0) {
yrect = yrect - 5 - 20;
ytext = ytext - 5 - 20 + 16;
}
else {
yrect = yrect + 5;
ytext = ytext + 5 + 16;
}
var r = g.append("rect")
.attr('class','radartip')
.attr("x", x)
.attr("y", yrect );
var txt = g.append("text").text("Note: " + d.note + "/20, moyenne promo: " + d.moy + "/20")
.attr('class','radartip')
.attr("x", x + 5)
.attr("y", ytext);
r.attr("width", rwidth).attr("height", 20);
})
.on("mouseout", function(d){
d3.selectAll(".radartip").remove()
});
/* Valeurs des notes */
g.selectAll("notes_labels")
.data(notes_valid)
.enter().append("text")
.text(function(d) { return d["note"]; })
.attr("x", function(d) {
return d["x_v"];
})
.attr("y", function(d) {
if (d["y_v"] > CY)
return d["y_v"] + 16;
else
return d["y_v"] - 8;
})
.attr("class", "note_label");
/* Petits points sur les moyennes */
g.selectAll("circle2")
.data(notes_valid)
.enter().append("circle")
.attr("cx", function(d) { return d["x_moy"]; })
.attr("cy", function(d) { return d["y_moy"]; })
.attr("r", function(x, i) { return 2; } )
.style("stroke-width", 0)
.style("stroke", "black")
.style("fill", "rgb(20,90,50)");
/* Valeurs sur axe */
g.selectAll("textaxis")
.data( R_AXIS_TICS )
.enter().append("text")
.text(String)
.attr("x", CX - 10)
.attr("y", function(x, i) { return CY - x*RR/20 + 6; })
.attr("class", "textaxis");
/* Noms des modules */
g.selectAll("text_modules")
.data(notes)
.enter().append("text")
.text( function(d) { return d['code']; } )
.attr("x", function(d) { return d['x_label']; } )
.attr("y", function(d) { return d['y_label']; })
.attr("dx", 0)
.attr("dy", 0)
.on("mouseover", function(d) {
var x = d["x_label"];
var yrect = d["y_label"];
var ytext = d["y_label"];
var titre = d['titre'].replace("&apos;", "'").substring(0,64);
var rwidth = titre.length * 9; // rough estimate of string width in pixels
if ((x - CX) < 0) {
x = x + 5;
if (x + rwidth + 12 > WIDTH) {
x = WIDTH - rwidth - 12;
}
}
else {
if ((x - CX) > 0) {
x = x - rwidth - 5;
if (x < 12) {
x = 12;
}
}
else {
x = CX - rwidth/2;
}
}
if ((yrect - CY) > 0) {
yrect = yrect - 5 - 20;
ytext = ytext - 5 - 20 + 16;
}
else {
yrect = yrect + 5;
ytext = ytext + 5 + 16;
}
var r = g.append("rect")
.attr('class','radartip')
.attr("x", x)
.attr("y", yrect)
.attr("height", 20)
.attr("width", rwidth);
var txt = g.append("text").text( titre )
.attr('class','radartip')
.attr("x", x + 5)
.attr("y", ytext);
})
.on("mouseout", function(d){
d3.selectAll(".radartip").remove()
});
}