The geoKavrayskiy7() function in d3.js is used to draw the Kavrayskiy VII pseudocylindrical projection from the given geojson data.
Syntax:
d3.geoKavrayskiy7()
Parameters: This method does not accept any parameters.
Returns: This method returns the Kavrayskiy7 projection.
Example 1: The following example draws the Kavrayskiy7 projection of world with the center at (0, 0) and rotation of 0 degrees.
HTML
<!DOCTYPE html> <html>   <head>     </script>     <script src=     </script> </head>   <body>     <div style="width:700px; height:500px;">         <center>             <h3 style="color:black"></h3>         </center>         <svg width="600" height="450">         </svg>     </div>       <script>         var svg = d3.select("svg"),             width = +svg.attr("width"),             height = +svg.attr("height");           // Kavrayskiy7 projection with         // the center at (0, 0) and rotation         // of 0 degrees         var gfg = d3.geoKavrayskiy7()             .scale(width / 1.5 / Math.PI)             .rotate([0, 0])             .center([0, 0])             .translate([width / 2, height / 2])           // Loading the json data         d3.json("https://raw.githubusercontent.com/" +             "janasayantan/datageojson/master/" +             "world.json",             function (data) {                   // Drawing the map                 svg.append("g")                     .selectAll("path")                     .data(data.features)                     .enter().append("path")                     .attr("fill", "SaddleBrown")                     .attr("d", d3.geoPath()                         .projection(gfg)                     )                     .style("stroke", "#ffff")             });     </script> </body>   </html> |
Output:
Example 2: The following example draws the Kavrayskiy7 projection of the world with the center at (-10, 0) and a rotation of 90 degrees with respect to the y-axis.
HTML
<!DOCTYPE html> <html>   <head>     </script>     <script src=     </script> </head>   <body>     <div style="width:700px; height:600px;">         <center>             <h3 style="color:black"></h3>         </center>         <svg width="500" height="450">         </svg>     </div>       <script>         var svg = d3.select("svg"),             width = +svg.attr("width"),             height = +svg.attr("height");           // Kavrayskiy7 projection with the         // center at (0,0) and rotation of         // 90 degrees with respect to the y-axis         var gfg = d3.geoKavrayskiy7()             .scale(width / 1.8 / Math.PI)             .rotate([90, 0])             .center([-10, 0])             .translate([width / 2, height / 2]);           // Loading the json data         d3.json("https://raw.githubusercontent.com/" +             "janasayantan/datageojson/master/" +             "world.json",             function (data) {                   // Draw the map                 svg.append("g")                     .selectAll("path")                     .data(data.features)                     .enter().append("path")                     .attr("fill", "grey")                     .attr("d", d3.geoPath()                         .projection(gfg)                     )                     .style("stroke", "#ffff")             });     </script> </body>   </html> |
Output:
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