d3.js - Why is the third variable in d3 anonymous function undefined when transitioning? -

-

say have test data 

var testdata1 = [ [   {x: 1, y: 40},   {x: 2, y: 43},   {x: 3, y: 12},   {x: 4, y: 60},   {x: 5, y: 63},   {x: 6, y: 23} ], [   {x: 1, y: 12},   {x: 2, y: 5},   {x: 3, y: 23},   {x: 4, y: 18},   {x: 5, y: 73},   {x: 6, y: 27} ], [   {x: 1, y: 60},   {x: 2, y: 49},   {x: 3, y: 16},   {x: 4, y: 20},   {x: 5, y: 92},   {x: 6, y: 20}  ]  ];

and bind data nested objects, 

var circles = svg.select("circle")     .data(testdata1)     .enter()     .append("circle") var subsel = circles.selectall("rect")     .data(function(d) {return d})     .enter()     .append("rect")

the third variable in d3 anonymous function holds index of parent data element (as discussed more in third variable in d3 anonymous function).

before adding transition, j variable behaves expected (gives 0,1,2 each group of 6 elements).

after transitioning, however, j variable becomes undefined:

subsel.attr("foobar", function(d,i,j) {console.log(d,i,j)})     .transition()     .attr("foobar", function(d,i,j) {console.log(d,i,j)})

what's going on?

the third variable not becomes undefined after transition. can check in fiddle: https://jsfiddle.net/gerardofurtado/4jahe31t/2/

i changed console.log show "before" , "after":

subsel.attr("foobar", function(d,i,j) {console.log("before:      x=" + d.x + " y=" + d.y + " i=" + + " j=" + j)}) .transition() .attr("foobar", function(d,i,j) {console.log("after:      x=" + d.x + " y=" + d.y + " i=" + + " j=" + j)})

it shows parent index, expected:

after: x=1 y=40 i=0 j=0 after: x=2 y=43 i=1 j=0 after: x=3 y=12 i=2 j=0 after: x=4 y=60 i=3 j=0 after: x=5 y=63 i=4 j=0 after: x=6 y=23 i=5 j=0 after: x=1 y=12 i=0 j=1 etc...

i tried reproduce behaviour, copying code verbatim, i'm still getting values j.


Comments

Post a Comment

Popular posts from this blog

sequelize.js - Sequelize group by with association includes id -

-
so when requesting group sequelize follows: return models.workingcalendar .findall({ attributes: [ 'workingcalendar.periodid', 'workingcalendar.date', 'period.name' ], include: [ { model: models.period, attributes: [] } ], where: { getsudoid: currentgetsudo.id, unitplantid: unitplantid }, group: ['workingcalendar.periodid', 'workingcalendar.date', 'period.name'], }); sequelize run query: select [workingcalendar].[id], [workingcalendar].[periodid], [workingcalendar].[date], [period].[name] [workingcalendars] [workingcalendar] left outer join [periods] [period] on [wor...
Read more

delphi - Take screenshot in webcam using VFrames in Console Application -

-
i'm doing program take picture of webcam using delphi xe2 , vframes achieve this, problem have figured out, in graphic application works fine, when use unit in console application, returns me error saying first chance exception @ $76b6b727. exception class eaccessviolation message 'access violation @ address 004a271b in module 'console.exe'. read of address 00000260'. process console.exe (3676) my unit : unit webcam; interface uses sysutils, windows, vcl.imaging.jpeg, vcl.graphics, vsample, vframes, classes; type twebcam = class private procedure newvideoframeevent(sender: tobject; width, height: integer; dataptr: pointer); public constructor create; destructor destroy; override; procedure capture_webcam(take_name: string); end; var web_image: tvideoimage; name_screen: string; implementation constructor twebcam.create; begin inherited create; end; destructor twebcam.destroy; begin inherited destroy; end; ...
Read more

ubuntu - Executors lost when starting pyspark in YARN client mode -

-
i able run pyspark in yarn client mode in laptop , trying setup in laptop. however, time can't running. when try start pyspark in yarn client mode, gives me following error. using dynamic resource allocation, have set spark_executor_memory less yarn container memory. using hadoop 2.6.4, spark 1.6.1, ubuntu 15.10 is possible error due network issues? 16/06/12 01:49:34 info scheduler.dagscheduler: executor lost: 1 (epoch 0) in [1]: 16/06/12 01:49:34 info cluster.yarnclientschedulerbackend: disabling executor 1. 16/06/12 01:49:34 info storage.blockmanagermasterendpoint: trying remove executor 1 blockmanagermaster. 16/06/12 01:49:34 info storage.blockmanagermasterendpoint: removing block manager blockmanagerid(1, 192.168.2.16, 37900) 16/06/12 01:49:34 error client.transportclient: failed send rpc 9123554941984942265 192.168.2.16/192.168.2.16:47630: java.nio.channels.closedchannelexception java.nio.channels.closedchannelexception 16/06/12 01:49:34 info storage.blockmanagermast...
Read more