ScoDoc/app/static/js/radar_bulletin.js

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//
// Diagramme "radar" montrant les notes d'un étudiant
//
// ScoDoc, (c) E. Viennet 2012
//
// Ce code utilise d3.js
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$().ready(function () {
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var etudid = $("#etudid")[0].value;
var formsemestre_id = $("#formsemestre_id")[0].value;
get_notes_and_draw(formsemestre_id, etudid);
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});
var WIDTH = 460; // taille du canvas SVG
var HEIGHT = WIDTH;
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var CX = WIDTH / 2; // coordonnees centre du cercle
var CY = HEIGHT / 2;
var RR = 0.4 * WIDTH; // Rayon du cercle exterieur
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/* Emplacements des marques (polygones et axe gradué) */
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var R_TICS = [8, 10, 20]; /* [6, 8, 10, 12, 14, 16, 18, 20]; */
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var R_AXIS_TICS = [4, 6, 8, 10, 12, 14, 16, 18, 20];
var NB_TICS = R_TICS.length;
function get_notes_and_draw(formsemestre_id, etudid) {
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console.log("get_notes(" + formsemestre_id + ", " + etudid + " )");
/* Recupère le bulletin de note et extrait tableau de notes */
/*
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var notes = [
{ 'module' : 'E1',
'note' : 13,
'moy' : 16 },
];
*/
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var query =
SCO_URL +
"Notes/formsemestre_bulletinetud?formsemestre_id=" +
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formsemestre_id +
"&etudid=" +
etudid +
"&fmt=json&version=selectedevals&force_publishing=1";
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$.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"],
});
});
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});
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draw_radar(notes);
});
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}
function draw_radar(notes) {
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/* Calcul coordonnées des éléments */
var nmod = notes.length;
var angle = (2 * Math.PI) / nmod;
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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 };
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}
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}
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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 != "-";
});
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/* Crée l'élément SVG */
g = d3
.select("#radar_bulletin")
.append("svg")
.attr("class", "radar")
.attr("width", WIDTH + 100)
.attr("height", HEIGHT);
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/* Centre */
g.append("circle")
.attr("cy", CY)
.attr("cx", CX)
.attr("r", 2)
.attr("class", "radar_center_mark");
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/* 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));
}
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/* 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");
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/* Lignes entre notes */
var ligne = d3.svg
.line()
.x(function (d) {
return d["x_v"];
})
.y(function (d) {
return d["y_v"];
});
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g.append("svg:path")
.attr("class", "radarnoteslines")
.attr("d", ligne(notes_circ_valid));
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var ligne_moy = d3.svg
.line()
.x(function (d) {
return d["x_moy"];
})
.y(function (d) {
return d["y_moy"];
});
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g.append("svg:path")
.attr("class", "radarmoylines")
.attr("d", ligne_moy(notes_circ_valid));
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/* 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);
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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();
});
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/* 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");
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/* 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)");
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/* 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");
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/* 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();
});
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}