I just posted this in the Google Visualization group, but I thought I would reach out to the Plone community as well for help.
I am using Plone 4.2.4 and wanted to integrate Google Charts with an Oracle back end via cx_Oracle. There is already a very nice package called EEA.Daviz. However, it was way more than I needed and I thought I could do it on my own, so I created some page templates and Python code that wraps the Javascript. On my laptop (Mac OS X) it all worked fine.
However, once I pushed it to my server (SLES 10), BarCharts stopped working. I have only tested Bar, Line and Motion charts. All I get is a red error box that says "e[0].K is undefined". After googling around, I found a very similar description of my problem that suggests it is a Google Visualization error and the fix is to change the width and height properties. However, changing the height or width did not fix it. What is very strange is that, if I copy the example JS from the BarChart page and copy it into a vanilla Zope Page Template, it works just fine. However, once I wrap it in the master template, I get the red error message again.
So I am confused. I have the same theme installed on my laptop and it did not give me any problems. I know I can display BarCharts on the server without the theme in a vanilla Page Template.
Can anyone point me in the right direction?
ZPT that Works:
<html>
<head>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script>
google.load("visualization", "1", {packages:["corechart"]});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['COUNTRY', ' COUNT'],
['Austria', 19],
['Belgium', 73],
['Bulgaria', 20]]
); var options = {
title: 'Test Bar Chart'}; var chart = new google.visualization.BarChart(document.getElementById('chart_div'));
chart.draw(data, options);}
</script>
</head>
<body>
<div id="chart_div" style="width: 900px; height: 1000px;"></div>
</body>
</html>
ZPT that does NOT work:
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"
xmlns:tal="http://xml.zope.org/namespaces/tal"
xmlns:metal="http://xml.zope.org/namespaces/metal"
xmlns:i18n="http://xml.zope.org/namespaces/i18n"
lang="en"
metal:use-macro="context/main_template/macros/master"
i18n:domain="plone">
<metal:main fill-slot="javascript_head_slot">
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script>
google.load("visualization", "1", {packages:["corechart"]});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['COUNTRY', ' COUNT'],
['Austria', 19],
['Belgium', 73],
['Bulgaria', 20]]
); var options = {
title: 'Test Bar Chart'}; var chart = new google.visualization.BarChart(document.getElementById('chart_div'));
chart.draw(data, options);}
</script>
</metal:main>
<body>
<metal:main fill-slot="main">
<tal:main-macro metal:define-macro="main">
<div id="chart_div" style="width: 900px; height: 1000px;"></div>
</tal:main-macro>
</metal:main>
</body>
</html>
I've tested your second example and it seems to work as intended so maybe there is something wrong with your data coming from Oracle (format, missing values, etc). You'll have to do some JS debugging out there. Try adding a breakpoint to see what e[0] is and why it doesn't have the K attribute (or why e is an empty Array).
Also, EEA Daviz is a bundle that brings together multiple Visualization frameworks (Google Charts, Simile Exhibit and in the near future Highcharts) but you can always use one or more of its components without bringing in the entire plane Thus, you should also try EEA Google Charts. Don't forget that you'll need collective.js.jqueryui < 1.9 for Plone 4.2.x
Related
I'm trying to make a simple example work on my local environment. I want to make a map on my website, but once I downloaded the necessary files I've got strange problems. First, I had to add for the example script link the 'type="module"' code, which is already made me crazy. Nobody tests these applications, or my environment is so special? Why are they even using the import tag, if it's not working in the most used browser like a charm?! After I extended the example code and changed the import links to be fine for my environment (ol/Map.js to /ol/Map.js), now I've got this error you can read in the title. Failed to resolve module specifier "rbush". What can I do? I have no idea. There must be a main point I have missed. The example (https://openlayers.org/en/latest/examples/simple.html) works fine online on openlayers.org, but If I follow the instructions It don't on my end. Why?
OpenLayers 5.1.3 is meant to be used with the npm package manager as described here:
https://openlayers.org/en/latest/doc/tutorials/bundle.html
To use it without including the dependencies and "building" it, see the quick start page in the documentation:
Put a map on a page
Below you'll find a complete working example. Create a new file, copy in the contents below, and open in a browser:
<!doctype html>
<html lang="en">
<head>
<link rel="stylesheet" href="https://cdn.rawgit.com/openlayers/openlayers.github.io/master/en/v5.1.3/css/ol.css" type="text/css">
<style>
html,
body {
height: 100%;
width: 100%;
margin: 0px;
padding: 0px;
}
.map {
height: 100%;
}
</style>
<script src="https://cdn.rawgit.com/openlayers/openlayers.github.io/master/en/v5.1.3/build/ol.js"></script>
<title>OpenLayers example</title>
</head>
<body>
<div id="map" class="map"></div>
<script type="text/javascript">
var map = new ol.Map({
target: 'map',
layers: [
new ol.layer.Tile({
source: new ol.source.OSM()
})
],
view: new ol.View({
center: ol.proj.fromLonLat([37.41, 8.82]),
zoom: 4
})
});
</script>
</body>
</html>
working example of the "simple" example
I am trying to pass an image as an asset property type to some other component (so that either a #selector or a url(url) can be passed) but it seems to take in the entire html component, instead of just the url.
<!DOCTYPE html>
<html>
<head>
<title>Hello, WebVR! - A-Frame</title>
<meta name='description' content='Hello, WebVR! - A-Frame'>
<script src='../../global/js/aframe-v0.8.0.min.js'></script>
<script>
AFRAME.registerComponent('some-component', {
schema: {
image: {type:'asset', default:''},
model: {type:'asset', default:''}
},
init: function() {
console.log(this.data.image); //prints out <img id="SomeImage" src="../../someDir/someFile.jpg">
console.log(this.data.model); //prints out '../../someDir/someModel.gltf'
}
});
</script>
</head>
<body>
<a-scene >
<a-assets timeout='3000'>
<!-- this works as an asset no problem -->
<a-asset-item id='SomeModel' src='../../global/assets/models/gltf/UserHead/UserHead.gltf'></a-asset-item>
<!-- this does not pass as an asset but rather an html element -->
<img id='SomeImage' src='../../global/assets/textures/equirectangular/CloudySky.jpg'>
</a-assets>
<a-entity some-component='image:#SomeImage; model:#SomeModel;'></a-entity>
</a-scene>
</body>
</html>
Thought I might look to see how A-Frame handles this in the material component can't see where does the 'src' property on material come from?
<a-entity id='skyBox'
geometry='primitive:sphere; radius:50; segments-height:6; segments-width:6;'
material='shader:flat; src:#skyMap; side:back; height:2048; width:2048'>
</a-entity>
Material component (can't see src): https://github.com/aframevr/aframe/blob/master/src/components/material.js
Thanks!
EDIT:
As per Piotr's discoveries below it looks like images are handed as a special case, as can be in the src code here with frame 0.8.0 where an image source is handed like this:
hash: function (data) {
if (data.src.tagName) {
// Since `data.src` can be an element, parse out the string if necessary for the hash.
data = utils.extendDeep({}, data);
data.src = data.src.src;
}
return JSON.stringify(data);
},
So basically if an image we the asset property will not handle image's properly and an additional step of grabbing the url from it via
data.src.src
OR
data.src.getAttribute('src');
Please correct me if i'm wrong, but i think it's not in the material schema.
I think the devil's in the component.js, which not only seems to allow you to assign a value to any given property, but also has the constructor for any component, and parses the schema.
That being said, the material does not need a src in the schema, as it seems to be a part of every component. Furthermore there are multiple parsers like the assetParse, or src-loader, checking whether an attribute is a html element, or even a video / image asset.
As for the material part, check out the dist source code, where
I think what you're looking for is:
module.exports.updateMapMaterialFromData
where you can see a-frame team uses the data.src for the material, and updates the texture with it. Just give it a ctrl+F (only 3 hits).
So when
module.exports.updateMapMaterialFromData('map', 'src', shader, data);
is called, with the given definition:
module.exports.updateMapMaterialFromData = function (materialName, dataName, shader, data) {
var el = shader.el;
var material = shader.material;
var src = data[dataName];
.......
makes src = data[src] => they make updates using a local variable src.
Also you can see the src-loader in action where the material system is registered, and when a src attribute is found out, the validateSrc function fires one of the two callbacks:
utils.srcLoader.validateSrc(src, loadImageCb, loadVideoCb);
I have use floorplan conversion api to convert my 2d floorplan to 3d and get the sceneId back 71c8eef9-b44e-447f-a0d2-fd299318da56.
I want to convert it to afame component inside my aframe application.So I use getAframeElements and get two entity back and following your official sample:
const sceneEl = document.querySelector('a-scene')
io3d.scene.getAframeElements(sceneId)
.then(elements => {
// this will give us two elements
// The first is the actual scene according to the scene structure hierarchy
// The second is the camera with potential waypoints that where defined in the scene structure
// you can leverage the waypoints using our A-Frame tour component
elements.forEach((el) => {
// add elements to the scene
sceneEl.appendChild(el)
})
sceneEl.appendChild(element)
})
Then It added to aframe, but nothing happens! I got nothing.
Do I miss something?
Hard to tell what's going on there without the full HTML and JavaScript, but the full code to get that working is:
<!DOCTYPE html>
<html>
<head>
<script src="https://aframe.io/releases/0.7.0/aframe.min.js"></script>
<script src="https://3d.io/releases/3dio-js/1.x.x/3dio.min.js"></script>
</head>
<body>
<a-scene></a-scene>
<script>
io3d.scene.getAframeElements('71c8eef9-b44e-447f-a0d2-fd299318da56').then(elems => {
document.querySelector('a-scene').appendChild(elems[0])
})
</script>
</body>
</html>
And you can see it working at https://aspiring-snowman.glitch.me/
I'm attempting to conditionally show/hide two divs using ng-show with a boolean value in $scope, based on when an AJAX call has completed. Basically, with the following layout:
<div id="div1" ng-show="!loadingData">
<!--Some markup here-->
</div>
<div id="loadingMessage" ng-show="loadingData">
Loading...
</div>
The function provoking the change contains the following:
$scope.loadingData=true;
var promise = dao.doAjaxGet("url");
promise.then(function(data){
//Hide loading message
$scope.loadingData=false;
});
The AJAX call is operating correctly, and this works fine in Chrome, Safari, Firefox, but not the two versions of IE that we are required to support - IE7 and IE8. The loading message stays hidden and div1 stays visible regardless of what status the call is in. Can anyone advise on this?
If you have console.log in your controller, get rid of it. It helped to get things working in IE8 e.g. ng-hide
Turns out this is caching related. Chrome and IE both cache ajax calls after the first call. I've managed to resolve the problem in chrome by introducing cache:false into the ajax call configuration but this seems to have no effect in IE. If anybody has further information on this, please let me know.
Here's a fully working Angular ie7 template. Ues a very old Angular, but works
My HTML File
https://cdn.jsdelivr.net/bootstrap/3.3.6/css/bootstrap.min.css'>
<!--[if lte IE 8]>
<script type="text/javascript">
// IE7 fix for missing
if (!window.console) {
var console = {
log: function() {},
warn: function() {},
error: function() {},
time: function() {},
timeEnd: function() {}
}
}
</script>
<script src="https://cdn.jsdelivr.net/json2/0.2/json2.js"></script>
<![endif]-->
<!--[if lte IE 9]>
<script type="text/javascript" src="https://cdn.jsdelivr.net/es5.shim/4.5.7/es5-shim.js"></script>
<![endif]-->
<script type="text/javascript" src="https://cdn.jsdelivr.net/html5shiv/3.7.3/html5shiv.min.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/angularjs/1.1.5/angular.js"></script>
<script>
/**
* Main AngularJS Web Application
*/
var app = angular.module('myapp', []);
app.controller('MyPageCtrl', pageController);
function pageController($scope) {
$scope.languages = [
{ 'Id': 1, 'Name': 'French' },
{ 'Id': 1, 'Name': 'German' },
];
};
</script>
</head>
<body ng-controller="MyPageCtrl">
<div class="col-xs-12">
<select name="languagesDropDown" id="languagesDropDown" class="form-control" style="width: 200px;">
<option ng-repeat="language in languages" value="{{language.Id}}">{{language.Name}}</option>
</select>
</div>
I faced this same issue of ng-show not working in Internet Explorer.
The official ngShow AngularJS documentation mentions about this, and provides a few workarounds for this.
(I'll copy-paste the text mentioned in that link, in case that link has expired or is not working for some reason)
When using ngShow and / or ngHide to toggle between elements, it
can happen that both the element to show and the element to hide are
visible for a very short time.
This usually happens when the ngAnimate module is included, but no
actual animations are defined for ngShow / ngHide. Internet
Explorer is affected more often than other browsers.
There are several way to mitigate this problem:
Disable animations on the affected elements.
Use ngIf or ngSwitch instead of ngShow / ngHide.
Use the special CSS selector ng-hide.ng-hide-animate to set {display: none} or similar on the affected elements.
Use ng-class="{'ng-hide': expression} instead of instead of ngShow / ngHide.
Define an animation on the affected elements.
The second suggestion (replacing ng-show with ng-if) worked for me. So in your case, you could consider using this -
<div id="div1" ng-if="!loadingData">
<!--Some markup here-->
</div>
<div id="loadingMessage" ng-if="loadingData">
Loading...
</div>
I'm building a dummy widget for a iGoogle/Netvibes like portal. This is a "Google Maps" widget, as it only renders a map centered on a specific location.
The widget looks good in all browsers but IE8, in which the height I specify to the <div> that contains the map is not taken into account.
Here's the interesting part of the code:
<body onload="initialize()" >
<div id="map_canvas" style="height:400px; width: 100%;"></div>
</body>
I have no control on the portal, so the only thing I can modify is the widget itself. I also tried to set the height for the <body>, but same thing.
Any idea on why it's not working in IE?
Thanks!
Put this in the page you're calling with the iframe:
<script type="text/javascript">
var iframes = window.parent.document.getElementsByTagName('iframe');
for(var i = 0; i < iframes.length; i ++)
{
if(iframes[i].src == window.location)
{
iframes[i].style.height = '400px';
}
}
</script>
If you are on 2 different domains, this isn't possible, and unfortunately there is no other way when supplying the <iframe> directly to the end-user. The best solution would be to instead give the user a script tag that generates the <iframe> tag using a document.write()
Example script tag to give to your client:
<script type="text/javascript" src="http://www.example.com/widget-getter.js?client=[clientid]&widget=[widgetid]"></script>
Contents of the script that the above tag would call:
document.write('<iframe height="400px" src="http://www.example.com/widget.html"></iframe>');
Did you try using the height attribute of the iframe tag?