d3heatmap | 易学教程

save heatmap generated by d3heatmap

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问题 I'm trying to save a heatmap produced by d3heatmap to a pdf file, but the file is always damaged. library(d3heatmap) pdf(file="heat.pdf") d3heatmap(mtcars, scale = "column", colors = "Spectral") dev.off() I suspect the challenge is "this is an R package that implements a heatmap htmlwidget." However, I figured I could still capture the image produced because "Like any htmlwidget, you can visualize a d3 heatmap directly from the R console." I looked at the two output functions in the package,

Interaction between html widgets in R shiny

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问题 I am developing an R shiny application that uses several html widgets, notably networkD3 , d3heatmap and chorddiag . These widgets work fine separately. However, using them in the same page leave a blank space where they are supposed to be. Here is a reproducible code that shows the bug. Comment plots line in the UI and you will see plots appearing and disappearing.. I thank you very much for your help! # libraries library(shiny) library(d3heatmap) library(chorddiag) library(networkD3) #

R / d3heatmap - is there a way to rotate the axis label?

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问题 In the R d3heatmap package, is there a way to rotate the x axis label to be 90 degrees (perpendicular to the axis) instead of 45? 回答1: I couldn't find an easy option to pass a rotation value to the function, but you can go into the innards of the d3heatmap package and change the rotation in the javascript code. Run ".libPaths()" in R to find where your R packages and their data are stored. In my case I found the d3heatmap package in '/home/nick/R/x86_64-suse-linux-gnu-library/3.1/d3heatmap/'.

To integrate D3 Band zoom in D3 heatmap

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问题 Here I want to integrate D3 Band zoom in D3 Heatmap with resettable zoom. The red band appears while dragging, but it didn't zoom. I think, there some issue in zoom function, but i couldn't track it yet. Please check out my fiddle. Zoom function: function zoom() { //recalculate domains if(zoomArea.x1 > zoomArea.x2) { x.domain([zoomArea.x2, zoomArea.x1]); } else { x.domain([zoomArea.x1, zoomArea.x2]); } if(zoomArea.y1 > zoomArea.y2) { y.domain([zoomArea.y2, zoomArea.y1]); } else { y.domain(

D3: slow zoomable heatmap

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I have this zoomable heatmap, which looks too slow when zooming-in or out. Is there anything to make it faster/smoother or it is just too many points and that is the best I can have. I was wondering if there is some trick to make it lighter for the browser please while keeping enhancements like tooltips. Or maybe my code handling the zoom feature is not great . <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <style> .axis text { font: 10px sans-serif; } .axis path, .axis line { fill: none; stroke: #000000; } .x.axis path { //display: none; } .chart rect { fill: steelblue; }

D3: slow zoomable heatmap

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问题 I have this zoomable heatmap, which looks too slow when zooming-in or out. Is there anything to make it faster/smoother or it is just too many points and that is the best I can have. I was wondering if there is some trick to make it lighter for the browser please while keeping enhancements like tooltips. Or maybe my code handling the zoom feature is not great . <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <style> .axis text { font: 10px sans-serif; } .axis path, .axis line {