Structure Data timeintervals in Highcharts - highcharts

I'd like to visualize the amount of steps taken over a day. Each datapoint looks simplified like this:
{
startDate: 1481029440000,
endDate: 1481029920000,
steps: 31
}
I'd like to plot it over an entire day and illustrate the duration but also the grow of step increase. Each datapoint is a separate series as I didn't want to have points connected to each other.
The result looks like what I want except for the styling which I have change. However the performance and zoom into the chart is extremely slow. Might there be a better way to use it?

Highcharts is optimised for managing many points, not many series (the work has been start on optimising series, though - as far as I know).
You can use one series with the null points as separators. By default connecting nulls is disabled.
data: (function (data) {
var d = [], i = 0, len = data.length, point;
for (; i < len; i++) {
point = data[i];
d.push([point.startDate, point.steps], [point.endDate, point.steps]);
if (i < len - 1) {d.push([point.endDate, null]);}
}
return d;
})(data)
example: http://jsfiddle.net/7vtd4fzm/

Related

Is there a way to have google sheets read imperial height as a number?

I'm making a sheet with details about a bunch of fictional characters, and one column I want to have is their height. I would also really like to use Conditional Formatting with a Color Scale to color-code the tallest and shortest characters, and everything in between.
Unfortunately, I live in the US, and am used to height expressed in feet and inches (e.g. 5'10''), which Google Sheets of course does not recognize as a number. Is there any way to remedy this, besides writing everything in terms of just inches (e.g. 60), such that I could apply conditional formatting directly to the column?
I've tried different formats (e.g. 5'10), and I considered having a hidden column with just the inch value and have conditional formatting work off of that row (doesn't work with Color Scale as far as I can tell, since you can't input a custom formula). One thought I had is somehow formatting things as an improper fraction with a denominator of 12, but hiding the denominator? But I have no idea how that would work. I've Googled as best I can, but I haven't found anything (everything's just about changing row height, which makes sense in hindsight).
I understand that you have two goals in mind. First of all, you should decide which unit length to use for managing heights. I have chosen inches, but you could work with feet if you need. This will simplify the scenario and will allow you to work easily with the data, but you could always create a function that translates inches to the foot/inches combo in order to show the data to a third party. This is the example table that I will use:
And this is my code, I will explain it at the bottom:
function main() {
var sheet = SpreadsheetApp.getActiveSheet();
var data = sheet.getDataRange().getValues();
data = sortTable(data);
sheet.getDataRange().setValues(data);
for (var i = 1; i < data.length; i++) {
data[i][2] = gradient(data.length, i);
}
for (var i = 1; i < data.length; i++) {
sheet.getRange(i, 2).setBackground("#" + data[i][2][0] + data[i][2][1] +
data[i][2][2]);
}
}
function sortTable(data) {
data.sort(function(a, b) {
return b[1] - a[1];
})
return data;
}
function gradient(arraySize, position) {
var relativePosition = position / arraySize;
var topColor = [parseInt("00", 16), parseInt("7A", 16), parseInt("33",
16)]; // Green
var bottomColor = [parseInt("FF", 16), parseInt("FF", 16), parseInt("FF",
16)]; // White
var positionColor = [0, 0, 0];
for (var i = 0; i < 3; i++) {
positionColor[i] = Math.floor(topColor[i] * (1 - relativePosition) +
bottomColor[i] * relativePosition).toString(16);
}
return positionColor;
}
First of all you have to read the data with a combination of getValues()/setValues(), and once you do that you can sort the table based on height so you can create the gradient later. Please notice how I separated the sorting function for better clarity.
After that you need the gradient color for setBackground(). To do so I developed a simple linear gradient function that calculates the RGB code from the top to the bottom. In my example the gradient fades from green to white, but you can change it. I also separated the gradient script into its own function. At this point you already have the sorted table and its gradient colors, so you only have to use setValues() and you are done. Feel free to leave any comment if you have doubts about this approach. This would be the final result:
UPDATE
Based in your comments I get that you need an imperial height format. For that case, you could use =INT(B2)&"' "&TRIM(TEXT(ROUND(MOD(B2,1)*12*16,0)/16,"# ??/??")&"""") (assuming that B2 contains the height). This approach will use Sheets Formulas to calculate the remainder part of the height, and its expression as an irreducible fraction. This is the final result:

Stock High Charts with Custom points on X-axis

I have a requirement where i have to show custom points on x-axis instead of dates values. Also same custom data points needs to be shown on navigator as well. In the below Js fiddle, i am converting data (Per13/2016 etc) into equivalent date values and then binding the chart using converted date values.
Below is the link of the JS fiddle:- Fiddle link
In the Js fiddle, i am showing Per1,Per2 etc.on x-axis and same has to be shown on navigator as well.
Now i am facing problem with the navigator,when i changes the range using slider ,the x-axis labels changes but not according to the range selected.Also tool-tip formatting is getting changed.
Can you please let me know how to handle this scenario and best way to do the same.
//few code lines to post fiddle link
xAxis: {
labels: {
formatter: function () {
if(fiscal13){
var perDate = new Date(this.value);
return 'Per' + (perDate.getMonth() + 1);
}
}
}
}
I am not sure if I am right, but I think you are overdoing this.
Let's keep original data, so remove fiscal13Data.Data.forEach(function(item) { .. }); function. And When creating data, use simply index of the point as x-value:
var cost = [],
usage = [],
dataLength = fiscal13Data.Data.length
i = 0;
for (i; i < dataLength; i += 1) {
// need to sum costs
cost.push([
i, // the index
fiscal13Data.Data[i]['Cost'] // cost
]);
usage.push([
i, // the index
fiscal13Data.Data[i]['Usage'] // Usage
]);
}
Now you can get to the "Per13/2016" strings in a simple way in xAxis labels' formatters:
var str = fiscal13Data.Data[this.value].Date;
In tooltip formatter, it is almost exactly the same:
var str = fiscal13Data.Data[this.x].Date;
And here is working demo: http://jsfiddle.net/qneuh4Ld/3/
Note: You data looks a bit strange - don't you want to sort it first? Also, you have twice every date (e.g. "Per13/2016" - once for "water" and once for "electric").

Get y-value of points along the generated line graph in Highcharts

I have two series of data--one consists of (Date, Rating), and the other is a list of events that happened on specific dates. The ultimate goal is to use the first series of data to construct a line graph to show how the rating has changed over time, which I've done successfully:
I now need to plot the second set of data using the dates as x-values (different dates than the first set), but want them to show up on the line--meaning I need to get the y-value of what that date would be if it were in the first set. I hope I explained that clearly; let me know if it's confusing.
I forgot I knew how to do algebra.
function getYValue(dataset, date){
//gets rating estimate for closest surrounding dates using algebraic fun-times
var point_1, point_2;
for (j = 0; j < dataset.length; j++){
if (dataset[j][0] > date) {
point_1 = dataset[j-1];
point_2 = dataset[j];
break;
}
}
var slope = (point_2[1] - point_1[1]) / (point_2[0] - point_1[0]);
var rating = slope * (date - point_2[0]) + point_2[1];
return rating;
}

Dealing with Bubble Chart overlap

We're working on a Highcharts Bubble Chart w/category axis and a lot of overlapping data points. Is there any way to control exactly how the bubbles are placed within the category? What we'd like to do is sort the bubbles ahead of time and then offset them from each other a bit. Some overlap is desirable so we'd prefer to not have to add additional categories to make sure there is no overlap.
Unfortunately we have no solution for controling positions of the bubbles. But you can request your propositin in our uservoice system http://highcharts.uservoice.com/
If you are using categories, your x values are the array index of the category for your value.
So to tweak the placement, you can tweak your x value by adding/subtracting small decimal amounts:
http://jsfiddle.net/yPLVP/10/
[-0.1,2,10]
Keeping in mind that +/- .5 is the center point between the categories - so for a value that falls within the 3rd category (x value 2), keep your x values between 1.55 and 2.45 (or so....)
I have the same problem, you can add this code:
function(chartObj) {
$.each(chartObj.series[0].data, function(i, point) {
var aux = 0;
if (i % 2 == 0)
aux = point.dataLabel.y + 6;
else
aux = point.dataLabel.y - 6;
point.dataLabel.attr({y:aux});
});
jsFiddle: http://jsfiddle.net/9m6wu/277/

Three JS select geometry by id

Background: I'm a dev that knows JS, but is relatively new to Three JS. I've done a few small projects that involve static scenes with basic repeating animation.
I'm currently working on a modified version of Google's Globe project http://workshop.chromeexperiments.com/globe/. Looking back, I probably should have just started from scratch, but it was a good tool to see the approach their dev took. I just wish I could now update ThreeJS w/o the whole thing falling apart (too many unsupported methods and some bugs I never could fix, at least not in the hour I attempted it).
In the original, they are merging all of the geometric points into one object to speed up FPS. For my purposes, I'm updating the points on the globe using JSON, and there will never be more than 100 (probably no more than 60 actually), so they need to remain individual. I've removed the "combine" phase so I can now individually assign data to the points and then TWEEN the height change animation.
My question is, how do I manually select a single point (which is a Cube Geometry) so that I can modify the height value? I've looked through Stack Overflow and Three JS on GitHub and I'm not sure I understand the process. I'm assigning an ID to make it directly relate to the data that is being passed into it (I know WebGL adds an individual name/ID for particles, but I need something that is more directly related to what I'm doing for the sake of simplicity). That seems to work fine. But again, as a JS dev I've tried .getElementById(id) and $('#'+id) in jQuery, and neither works. I realize that Geometry objects don't behave the same way as HTML DOM objects, so I guess that's where I'm having struggles.
Code to add a point of data to the globe:
function addPoint(lat, lng, size, color, server) {
geometry = new THREE.Cube(0.75, 0.75, 1, 1, 1, 1, null, false, { px: true,
nx: true, py: true, ny: true, pz: false, nz: true});
for (var i = 0; i < geometry.vertices.length; i++) {
var vertex = geometry.vertices[i];
vertex.position.z += 0.5;
}
var point = new THREE.Mesh(geometry, new THREE.MeshBasicMaterial ({
vertexColors: THREE.FaceColors
}));
var phi = (90 - lat) * Math.PI / 180;
var theta = (180 - lng) * Math.PI / 180;
point.position.x = 200 * Math.sin(phi) * Math.cos(theta);
point.position.y = 200 * Math.cos(phi);
point.position.z = 200 * Math.sin(phi) * Math.sin(theta);
if($('#'+server).length > 0) {
server = server+'b';
}
point.id = server;
point.lookAt(mesh.position);
point.scale.z = -size;
point.updateMatrix();
for (var i = 0; i < point.geometry.faces.length; i++) {
point.geometry.faces[i].color = color;
}
console.log(point.id);
scene.addObject(point);
}
So now to go back, I know I can't use point.id because obviously that will only reference inside the function. But I've tried 'Globe.id', 'Globe.object.id', 'object.id', and nothing seems to work. I know it is possible, I just can't seem to find a method that works.
Okay, I found a method that works for this by playing with the structure.
Essentially, the scene is labeled "globe" and all objects are its children. So treating the scene as an array, we can successfully pass an object into a var using the following structure:
Globe > Scene > Children > [Object]
Using a matching function, we loop through each item and find the desired geometric object and assign it to a temporary var for animation/adjustment:
function updatePoints(server){
var p, lineObject;
$.getJSON('/JSON/'+server+'.json', function(serverdata) {
/* script that sets p to either 0 or 1 depending on dataset */
var pointId = server+p;
//Cycle through all of the child objects and find a patch in
for(var t = 3; t < globe.scene.children.length; t++) {
if(globe.scene.children[t].name === pointId) {
//set temp var "lineObject" to the matched object
lineObject = globe.scene.children[t];
}
}
/* Manipulation based on data here, using lineObject */
});
}
I don't know if this is something that anyone else has had questions on, but I hope it helps someone else! :)
EDIT: Just realized this isn't a keyed array so I can use .length to get total # of objects

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