I have a problem with overlapping labels in a bar charts.
The settings in the Axis label appear to be correct, because others settings do affect the rendering (bold, etc..) but spacing does not seem to be taken into account.
Any way to do a proper spacing of the labels, or actually to rotate them ?
Update1:
After applying the proposed settings this is what I get:
The labels are rotated but do not fit the widget.
I tried updating the margins, without a positive result.
There are no options in the widget fields but you can rotate these labels using the "On Widget Options" hook.
You can find it on "Hooks" tab.
"On Widget Options" hook use this function:
function(context, options, $box) {
for (var i = 0; i < options.categoryAxis.guides.length; i++) {
options.categoryAxis.guides[i].labelRotation = 30; // rotation angle
}
return options;
}
Available fields for Guides can be checked here
Custom code
Result
UPDATE:
You can change top margin using this code lines:
options.marginTop = 88; // Top margin
Just add it into "On Widget Options" hook:
function(context, options, $box) {
options.marginTop = 88; // Top margin
for (var i = 0; i < options.categoryAxis.guides.length; i++) {
options.categoryAxis.guides[i].labelRotation = 30;
}
return options;
}
Related
I'm working on my WordPress website with Visual Composer.
I need to include a pageable container but it would be great if it can be like a slideshow.
This is my pageable container
Thanks in advance,
Regards :)
Based upon the current version of WP Bakery Page Builder the below works for me:
To build it I created a row with 3 columns, with the pageable container in the middle column and the left and right arrow images in the columns on either side.
Both arrow images and the pageable container were given IDs. In my example the IDs of the arrows were #arrow_prev and #arrow_next respectively. You can give your pageable container any unique ID.
(function ($) {
$(document).ready(function(){
$( '#arrow_prev' ).click( function( e ) {
var pageable_container = $(this).closest(".vc_row").find(".vc_tta-panels-container");
move_pageable_container(pageable_container,'prev');
});
$( '#arrow_next' ).click( function( e ) {
var pageable_container = $(this).closest(".vc_row").find(".vc_tta-panels-container");
move_pageable_container(pageable_container,'next');
});
function move_pageable_container(pageable_container,direction){
// Make a list of the panel IDs
var panel_ids = $(pageable_container.find(".vc_tta-panel"))
.map(function() { return this.id; }) // convert to set of IDs
.get();
// Find position of the active panel in list
var current_active_pos = panel_ids.indexOf($(pageable_container).find(".vc_tta-panel.vc_active").attr('id'));
var new_pos = 0;
switch(direction) {
case 'prev':
if (current_active_pos > 0){
new_pos = current_active_pos-1;
}else{
new_pos = panel_ids.length-1;
}
break;
case 'next':
if (current_active_pos < panel_ids.length-1){
new_pos = current_active_pos+1;
}else{
new_pos = 0;
}
break;
}
// Clear active panels
$(pageable_container.find(".vc_tta-panel")).each(function(i,a) {
$(this).removeClass("vc_active");
});
var new_active_panel = $(pageable_container).find('#'+ panel_ids[new_pos]);
$(new_active_panel).addClass("vc_animating");
$(new_active_panel).addClass("vc_active");
setTimeout(
function(){
$(new_active_panel).removeClass("vc_animating");
}, 350);
}
}
);
})(jQuery);
If you want a pseudo fading-in effect then you can use this additional CSS in your style sheet:
#id_of_pageable_container .vc_tta-panel.vc_animating {
opacity: 0!important;
}
Where #id_of_pageable_container is the ID that you gave your pageable container
A simpler solution with vanilla js only:
The idea is to find the target page button and press it programmatically, so that there is no need to mimic the plugin's animations as in Chaz's solution.
Add js (via Raw JS widget / other means):
function prevSlide () {
const slides = document.getElementsByClassName('vc_pagination-item');
for (let i = 0; i < slides.length; i++) {
if (slides[i].className.includes('vc_active')) {
if (i - 1 < 0) return;
slides[i - 1].firstChild.click();
return;
}
}
}
function nextSlide () {
const slides = document.getElementsByClassName('vc_pagination-item');
for (let i = 0; i < slides.length; i++) {
if (slides[i].className.includes('vc_active')) {
if (i + 1 >= slides.length) return;
slides[i + 1].firstChild.click();
return;
}
}
}
Add button widgets and set href to call js:
For left arrow button,
javascript:prevSlide();
For right arrow button,
javascript:nextSlide();
Hope this helps.
I prefer to use the Post Grid widget for that. Keep in mind that the pageable container is not totally responsive, it doesn't react to swipe touching, but the Post Grid does.
Post Grid is really powerful, although it also has its caveouts. You can create your content with posts and pages, or a custom post type and then filter what you want to show in your slider from the widget options.
In "advanced mode" you can use the Grid Builder to create your own template and control the output.
The only problems that I've found with this method is to set a variable height in sliders and that sometimes it is slow loading content and is not possible to do a lazyload.
I need to select multiple markers in a map. Something like this: Box/Rectangle Draw Selection in Google Maps but with Leaflet and OSM.
I think it could be done by modifying the zoom box that appears when you shift click and drag in an OSM map, but I don't know how to do it.
Edit:
I rewrote the _onMouseUp function, as L. Sanna suggested and ended up with something like this:
_onMouseUp: function (e) {
this._finish();
var map = this._map,
layerPoint = map.mouseEventToLayerPoint(e);
if (this._startLayerPoint.equals(layerPoint)) { return; }
var bounds = new L.LatLngBounds(
map.layerPointToLatLng(this._startLayerPoint),
map.layerPointToLatLng(layerPoint));
var t=0;
var selected = new Array();
for (var i = 0; i < addressPoints.length; i++) {
var a = addressPoints[i];
pt = new L.LatLng(a[0], a[1]);
if (bounds.contains(pt) == true) {
selected[t] = a[2];
t++;
}
}
alert(selected.join('\n'))
},
I think it could be easy modificating the zoom box that appears when
you shift clic and drag in an osm map, but I don't know how to do it
Good idea. The zoom Box is actually a functionality of leaflet.
Here is the code.
Just rewrite the _onMouseUp function to fit your needs.
Have you tried something like this?
markers is an array of L.latLng() coordinates
map.on("boxzoomend", function(e) {
for (var i = 0; i < markers.length; i++) {
if (e.boxZoomBounds.contains(markers[i].getLatLng())) {
console.log(markers[i]);
}
}
});
Not enough points to comment, but in order to override the _onMouseUp function like OP posted in their edit, the leaflet tutorial gives a good explanation. Additionally, this post was very helpful and walks you through every step.
A bit late to the party but it's also possible to achieve this using the leaflet-editable plugin.
// start drawing a rectangle
function startSelection() {
const rect = new L.Draw.Rectangle(this.map);
rect.enable();
this.map.on('draw:created', (e) => {
// the rectangle will not be added to the map unless you
// explicitly add it as a layer
// get the bounds of the rect and check if your points
// are contained in it
});
}
Benefits of using this method
Allow selection with any shape (polygon, circle, path, etc.)
Allow selection using a button/programmatically (does not require holding down the shift key, which may be unknown to some users).
Does not change the zoom box functionality
Does Flot have an option that can be set to give the chart a title? I'm not seeing one for the overall chart, just for the axes.
But I might have missed something.
I do not think this option exists. It is pretty easy, though, to title the plot using regular HTML. Just wrap a div around your "placeholder" div and add the title text to that.
after drawing flot chart (plot function) fill canvas with text (jsFiddle). Advantage of my solution is that you can save chart as image containing title on it.
example:
var c=document.getElementsByTagName("canvas")[0];
var canvas=c.getContext("2d");
var cx = c.width / 2;
var text="Flot chart title";
canvas.font="bold 20px sans-serif";
canvas.textAlign = 'center';
canvas.fillText(text,cx,35);
You can use hooks for that. For instance use the overlay hook, and implement your overlay functionality in a separate OverlayHandler
Here is an example, where the chartElement, chartDataand chartOptions are your HTML element and flot data and flot options, respectively.:
var plotOverlayHandler = function(plot, cvs) {
if(!plot) { return; }
var cvsWidth = plot.width() / 2;
var text = 'Flot chart-title!';
cvs.font = "bold 16px Open Sans";
cvs.fillStyle = "#666666";
cvs.textAlign = 'center';
cvs.fillText(text, cvsWidth, 30);
return cvs;
};
var plot = $.plot(chartElement, chartData, chartOptions);
plot.hooks.drawOverlay.push( plotOverlayHandler );
When exporting the canvas via the native toDataURL method, simply apply the OverlayHandler first. This allows for greater flexibility.
var elCanvas = $('canvas.flot-base').first();
var canvas = plotCanvasOverlay(elCanvas, elCanvas.get(0).getContext('2d'))
var dataUrl = canvas.toDataURL('image/png');
Pioja's answer is indeed a great one. His jsFiddle shows the full details. It is important to have the following included in your options:
canvas: true,
grid: {
margin: { top:50 }
}
This will then insert a nice chart title which can be included in the image if you export it.
Building on pioja's answer, the title can be set directly after the plot has been made with:
var plot = $.plot($("#"+PlotPlaceholder), data, options);
By using the getCanvas function:
var c = plot.getCanvas();
Now, just follow pioja's code to get:
var canvas=c.getContext("2d");
var cx = c.width / 2;
var text="Flot chart title";
canvas.font="bold 20px sans-serif";
canvas.textAlign = 'center';
canvas.fillText(text,cx,35);
I have written some code to hide specific markers in our maps based on checkboxes outside of the map itself. However, these markers also have vector features too (really on separate layers) but I want to just hide the features rather than destroy them. I tried using display(false) but get errors. Is there a function for hiding vectors?
Solution
Change the style property for OpenLayers.Feature.Vector instances. Set the display attribute to none or the visibility attribute to hidden. Redraw the layer afterwards.
According to comments in OpenLayers code:
display - {String} Symbolizers will have no effect if display is set to "none". All other values have no effect.
Example Code
For a given OpenLayers layer variable called layer, you could hide all the features as follows:
var features = layer.features;
for( var i = 0; i < features.length; i++ ) {
features[i].style = { visibility: 'hidden' };
}
layer.redraw();
This iterates over all features in a layer, allowing full control of the specific features to hide.
I have wrestled with OpenLayers a few times trying to get my features within the same layer to display exactly as I want. #igorti's solution overrides all of the feature's style properties, so I don't recommend this approach unless you have no reason to re-display the feature later on (in which case the removeFeatures() method is probably a better way to do this anyways).
Hiding Vector Features
The way I do this is to manually set the feature's style display to none and then redraw the layer. If I need to display the feature again, set the display property to block. Pretty simple:
function hideFeatures() {
var features = layer.features;
for (var i = 0; i < features.length; i++) {
var feature = features[i];
if (!isVisible(feature)) {
feature.style.display = 'none';
}
}
layer.redraw();
}
Re-Displaying Vector Features
Re-displaying hidden features is a little bit trickier depending on your situation. Take a look at the OpenLayers documentation on styling for some possibilities. But in general, if I need to display the feature again, I set the feature's style attribute to null. This ensures that when the OpenLayers renderer performs the drawFeature function, your pre-configured styles from your layer's styleMap are redrawn:
// from OpenLayers drawFeature()
if (!style) {
style = this.styleMap.createSymbolizer(feature, renderIntent);
}
So your display function might look something like this:
function displayFeatures() {
var features = layer.features;
for (var i = 0; i < features.length; i++) {
var feature = features[i];
if (isVisible(feature)) {
feature.style = null; //redraw the feature
}
}
layer.redraw();
}
Other Approaches
There are a couple other approaches to doing this. You can set the feature's fillOpacity and strokeOpacity to 0, like so:
function displayFeatures() {
var features = layer.features;
for (var i = 0; i < features.length; i++) {
var feature = features[i];
if (isVisible(feature)) {
feature.style.fillOpacity = 1;
feature.style.strokeOpacity = 1;
}
else {
feature.style.fillOpacity = 0;
feature.style.strokeOpacity = 0;
}
}
layer.redraw();
}
The downside to this approach is that any active map controls will still be able to interact with the "hidden" feature, so if a user accidentally clicks or hovers over the feature these events will still fire.
You can also create a style within your layer's styleMap called hidden, with either of the two approaches above. Then to hide a feature, simply change the feature's renderIntent to hidden.
Finally, you can add subsets of your features to separate layers, and call the layer's setVisibility method to false. This is only a good option if you don't have a need to interact with all features concurrently, since only controls for the top layer of your map will be active. (There are ways to use controls for multiple layers, but there's a lot more juggling involved and I don't recommend it unless it is absolutely necessary)
You can set display:'none' in style property. So that features will not be display
To hide features
for( var i = 0; i < features.length; i++ ) {
features[i].style = { display: 'none' };
}
layer.redraw();
To display back the hidden features
for( var i = 0; i < features.length; i++ ) {
features[i].style = null;
}
layer.redraw();
To hide the one feature
var feature = vectorlayer.getFeatureByFid(fid);
feature.style = { display: 'none' };
vectorLayer.removeFeatures(feature);
vectorLayer.addFeatures(feature);
It was not clear from your question whether you've already tried it, but if you haven't you might try the setVisibility() method.
Reference: http://dev.openlayers.org/releases/OpenLayers-2.10/doc/apidocs/files/OpenLayers/Layer-js.html#OpenLayers.Layer.setVisibility
Here is what I finally done for this matter as I had the same need but didn't want to hide each feature individually or play with CSS style:
I'll assume that you have something like the following somewhere:
myVector = new OpenLayers.Layer.Vector(...
Then link this code to the button or whatever event you need:
if( myVector.getVisibility() && myVector.features.length > 0 ) {
myVector.setVisibility(false);
} else {
myVector.setVisibility(true);
}
getVisibility() / setVisibility() references are missing from vector part but are in layer documentation.
I'm dynamically inserting LegendItems into a Legend using the following code:
signalLegend.removeAllChildren();
signalLegend.direction = "vertical";
for (var i:int = 0; i < numItems - 1; i++) {
signalLegend.addChild(new LegendItem());
legendItem = signalLegend.getChildAt(i) as LegendItem;
legendItem.label = "Title here";
legendItem.setStyle("fill", theColour);
}
While the Legend direction is set as vertical, all the items are appearing horizontally.
Very annoying.
use the labelPlacement style
This seems to be a bug. The children of the Legend control are placed wrong, if you add them at runtime.
Set the direction to "horizontal" and the items will appear vertically. :-)
Ok, I found a solution.
<mx:Legend id="nhLeg"
updateComplete="LegendPosition()"
direction="vertical"
width="80%"/>
And then in the LegendPosition() function:
private function LegendPosition():void
{
nhLeg.direction="vertical";
}