lab2 init

labs/lab2/JavaScript/image.js

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+// создаем изображение смайлик
+// рисуем его относительно точки (0, 0)
+function drawSmile(svg) {
+    let smile = svg.append("g")
+        .style("stroke", "brown")
+        .style("stroke-width", 2)
+        .style("fill", "brown");
+    //лицо
+    smile.append("circle") 
+        .attr("cx", 0)
+        .attr("cy", 0)
+        .attr("r", 50)
+        .style("fill", "yellow");
+    //левый глаз   
+    smile.append("circle") 
+        .attr("cx", -20)
+        .attr("cy", -10)
+        .attr("r", 5);
+    //правый глаз
+    smile.append("circle") 
+        .attr("cx", 20)
+        .attr("cy", -10)
+        .attr("r", 5);
+    // улыбка
+    let arc = d3.arc()
+       .innerRadius(35)
+       .outerRadius(35);    
+    smile.append("path")
+       .attr("d", arc({startAngle: Math.PI /3 * 2, endAngle: Math.PI/3 * 4}))
+       .style("stroke", "brown")
+
+     return smile  
+}   

labs/lab2/JavaScript/main.js

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+document.addEventListener("DOMContentLoaded", function () {
+    const width = 600;
+    const height = 600;
+    const svg = d3.select("svg")
+        .attr("width", width)
+        .attr("height", height);
+
+    // let pict1 = drawSmile(svg);
+    // pict1.attr("transform", `translate(400, 400) scale(1.5, 1.5) rotate(180)`);
+
+    // let pict = drawSmile(svg);
+    // pict.attr("transform", "translate(200, 200)");
+
+    setting.applyButton.addEventListener("click", () => {
+        draw(setting);
+    })
+    setting.clearButton.addEventListener("click", () => {
+        svg.selectAll('*').remove()
+    })
+
+    enableAnimCheckbox.addEventListener("change", () => {
+        let isChecked = enableAnimCheckbox.checked;
+        if (isChecked) {
+            startAnimButton.display = "inline-block";
+            animTypeSelect.display = "inline-block";
+            applyButton.display = "none";
+        }
+        else {
+            startAnimButton.display = "none";
+            animTypeSelect.display = "none";
+            applyButton.display ="inline-block";
+        }
+    })
+})
+
+
+const draw = (dataForm) => {
+    const svg = d3.select("svg")
+    let pict = drawSmile(svg);
+    pict.attr("transform", `
+        translate(${dataForm.cx.value},
+        ${dataForm.cy.value})
+        scale(${dataForm.sx.value},
+        ${dataForm.sy.value})
+        rotate(${dataForm.r.value})`);
+
+}