leveldb

1 files changed, 99 insertions, 0 deletions

diff --git a/datastore-leveldb/public/src/d3.plot.js b/datastore-leveldb/public/src/d3.plot.js
new file mode 100644
index 0000000..d9a7d04
--- /dev/null
+++ b/datastore-leveldb/public/src/d3.plot.js
@@ -0,0 +1,99 @@
+(function(){
+
+function d3_plot(container) {
+    this.opt = {
+	w:550, h:200, margin:30
+    };
+    this.element = container.append("svg:g")    
+	.classed("d3.plot_plot",true)
+	.attr("width", this.opt.w)
+	.attr("height", this.opt.h);
+
+    this.element.append("svg:rect")
+	.attr("width", this.opt.w)
+	.attr("height", this.opt.h)
+	.style("fill", "white");
+   
+    this.element.append("svg:text")
+	.classed("d3-plot_wait", true)
+	.attr("x", this.opt.w/2)
+	.attr("y", this.opt.h/2)
+        .attr("text-anchor", "center")
+	.text("Bitte warten");
+};
+
+d3_plot.prototype = {
+    draw: function(data) {
+	var x_min = d3.min(data, function(d){return d[0];}),
+        x_max = d3.max(data, function(d){return d[0];}),
+        y_min = d3.min(data, function(d){return d[1];}),
+        y_max = d3.max(data, function(d){return d[1];});
+
+	var x = d3.time.scale()
+            .domain([x_min, x_max])
+            .range([0+this.opt.margin, this.opt.w-this.opt.margin]);
+	
+	var y = d3.scale.linear()
+            .domain([y_min, y_max])
+            .range([0+this.opt.margin, this.opt.h-(this.opt.margin/2)]);
+
+	
+	var g = this.element.append("svg:g")
+            .attr("transform", "translate(0, "+this.opt.h+")");
+
+	var line = d3.svg.line()
+            .x(function(d,i){ return x(d[0]); })
+            .y(function(d) {return -1*y(d[1]);});
+
+	g.append("svg:path")
+            .attr("d", line(data));
+
+	// Axes X-Line
+	g.append("svg:line")
+            .attr("x1", 0)
+            .attr("y1", -1*y(y_min))
+            .attr("x2", x(x_max))
+            .attr("y2", -1 * y(y_min));
+        
+	
+	// Tick Labels
+	var tick_format = d3.time.format("%d.%m");
+	g.selectAll(".xlabel")
+            .data(x.ticks(5)).enter()
+            .append("svg:text")
+            .text(function(d){return tick_format(d);})
+            .attr("x", function(d) {return x(d);})
+            .attr("y", -5)
+            .attr("text-anchor", "center");
+
+	g.selectAll(".ylabel")
+            .data(y.ticks(5)).enter()
+            .append("svg:text")
+            .text(String)
+            .attr("x", 0)
+            .attr("y", function(d) {return -1*y(d);})
+            .attr("text-anchor", "right");
+
+	// X-Lines
+	g.selectAll(".xlines")
+            .data(x.ticks(5)).enter()
+            .append("svg:line")
+            .style("fill", "none")
+            .style("stroke", "#000000")
+            .style("stroke-width", 0.5)
+            .style("stroke-dasharray", "6,1")
+            .attr("x1", function(d){return x(d);})
+            .attr("y1", -1*y(y_min)+(this.opt.margin/3))
+            .attr("x2", function(d){return x(d);})
+            .attr("y2", -1*y(y_max));
+
+	//
+	this.element.select(".d3-plot_wait").style("display","none");
+    }
+};
+
+d3.plot = function(container) {
+    return new d3_plot(container);
+};
+
+})();
\ No newline at end of file