D3: Is it possible to zoom+pan one axis and only pan the other?

Question

I have zoom and pan working for the x axis but I\'d like to add panning for the y axis. I tried using d3.behavior.zoom and d3.event.translate[1] to

Answer 1

You can use

zoom.center

to get the code a bit cleaner, like this:

var lastY = 0;
var x = d3.scale.linear()
  .domain([0, 800])
  .range([0, 800]);

var y = d3.scale.linear()
  .domain([0, 800])
  .range([0, 800]);

var rectangleSelector = d3.select('svg')
  .append('g')
  .selectAll('rect')
  .data([[0, 0], [50, 50], [100, 100]])
  .enter()
  .append('rect')
  .attr('fill', 'black')
  .attr('x', d => x(d[0]))
  .attr('y', d => y(d[1]))
  .attr('width', d => x(d[0] + 40) - x(d[0]))
  .attr('height', d => y(40));
  
 var zoom = d3.behavior.zoom().center([400, 400]).x(x);
 zoom.on('zoom', () => {
     var translateY = d3.event.translate[1];
     zoom.center([400, translateY]);
     rectangleSelector.attr('x', d => x(d[0]))
                      .attr('y', d => y(d[1] + translateY))
                      .attr('width', d => x(d[0] + 40) - x(d[0]))
                      .attr('height', d => y(40));
});

d3.select('svg').call(zoom);