done untill histogram

labs/lab3/JavaScript/main.js

@@ -11,5 +11,33 @@ document.addEventListener("DOMContentLoaded", function () {
         }
         tableIsDisplayed = !tableIsDisplayed;
     })
+    updateGraph();
+    drawButton.addEventListener("click", () => {
+        clearGraph();
+        updateGraph();
+    });
 
-})
+});
+
+
+function updateGraph() {
+    const keyX = ["Год","Страна"][getOX()];
+    const yAxis = getOY();
+    errorDisplay.hidden = yAxis.length!=0
+    drawGraph(buildings,keyX, yAxis.includes(0),yAxis.includes(1));
+
+}
+
+
+function getOX() {
+    return Number(document.querySelector("input[name=\"OX\"]:checked").value);
+}
+
+function getOY() {
+    return d3.map(document.querySelectorAll("input[name=\"OY\"]:checked"),
+        (x) => Number(x.value));
+}
+
+function clearGraph(){
+    d3.select("svg").selectAll('*').remove();
+}